How to cure bacterial cancer on raspberries. Raspberry leaf disease infectious chlorosis. Why do remontant raspberries dry out leaves

When processing the garden from diseases and pests, special attention should be paid to fruit and berry bushes. A lot of research has been devoted to raspberry diseases and the fight against them, but, unfortunately, some of them (for example, infectious chlorosis) cannot be treated. Therefore, it is important not only to use methods to protect raspberries from diseases, but also to carry out regular preventive measures. Photos and descriptions of raspberry diseases, as well as recommendations for combating them, are presented on this page.

Didimella raspberry disease and its control

Raspberry didimella is characterized by the appearance of small brownish-purple spots on annual shoots, which are located mainly at the point of attachment of the leaf. As the disease progresses, the spots increase in size. They can reach more than 2 cm. The spots become dark brown, they have a pronounced light center, where brown and black tubercles form.

As can be seen in the photo, with this raspberry disease, in the second year after infection, the spots on the raspberry shoots become lighter, and the tubercles on them appear more clearly. After a while, the tubercles crack.

The mass defeat of raspberry shoots occurs at the end of September.

Look at the photo of this raspberry disease and its treatment: to combat didimella, it is recommended to spray the plants with a solution of Bordeaux liquid (300 g per 10 l of water) in early spring. Before flowering and after harvesting, treatment should be carried out with a 1% solution of Bordeaux liquid (100 g per 10 l of water).

Thickening of raspberry plantings should not be allowed, as this prevents ventilation and lighting of the bushes.

Raspberry leaf disease infectious chlorosis

With infectious chlorosis, there is a strong yellowing of raspberry leaves by mid-summer.

In the initial stage of this disease, raspberry leaves show yellowing along the veins. This process affects the entire leaf plate. By autumn, leaf chlorosis subsides slightly. The shoots of the root shoots of the infected bush become thin and elongated, and the berries become one-sided, while they often dry out before ripening.

Treatment of this raspberry disease is almost impossible. Bushes with signs this disease should be uprooted and burned. For prevention, it is recommended to use only healthy planting material, to carry out regular treatment of plants against insects that are carriers of raspberry chlorosis.

The spread of this disease occurs with the juice of diseased plants, various insects, during the grafting of diseased cuttings on healthy plants and when pruning diseased and healthy cultures without intermediate disinfection of the instrument.

Protecting raspberries from bushiness disease

When raspberries are bushy, a large number of very thin shoots (root shoots) appear. Sometimes their number can reach 250 shoots per bush. Shoots grow from one small section of the rhizome. Their height does not exceed 15 cm. The leaves grow small on them. The fruiting of diseased raspberry bushes decreases, and sometimes stops completely.

Raspberry curl is a viral disease and is practically not treatable.

Bushes showing signs of this disease should be uprooted and burned.

Timely treatment of plants against insects that are carriers of this disease should be carried out. The virus spreads with the juice of diseased plants, during the grafting of diseased cuttings on healthy crops and with planting material (root shoots).

Photo gallery: raspberry diseases (click to enlarge):

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Raspberry diseases and their control. Raspberry Care

Common raspberry is known to every gardener. This is a prickly shrub, individual shoots of which can reach a height of two meters. The plant belongs to the Rosaceae family, has small inconspicuous white flowers collected in inflorescences.

Useful berry at their summer cottage

But the popularity of this plant was brought by a sweet fruit, which is a combined multidrupe of bright crimson color. Contrary to popular belief, raspberries are not a berry, but a complex fruit.

The shoots of ordinary raspberries give a harvest in the second year, but there are special varieties whose shoots bear fruit from the first season. Such a plant is called "remontant raspberry". Caring for it does not cause any particular difficulties, so gardeners often prefer this particular variety of raspberries. These varieties have been cultivated for over 200 years. Planting these plants on the site can significantly extend the raspberry season. Therefore, both types of plants are often found in garden plots: regular raspberry to get a harvest in summer, and to enjoy the fruits in autumn, remontant raspberries are planted. Plant care, bait and watering are the basic requirements for a good harvest.

Application in traditional medicine

Raspberries have long been considered medicine. Dried fruits or delicious jam with hot tea was always given for colds, accompanied by fever. In fact, raspberry fruits are rich in organic acids, which have a diuretic effect, stimulate digestion well, have an antipyretic effect, and in addition, have anti-inflammatory and antiseptic effects.

Traditional medicine even uses the leaves and flowers of this plant for coughs, colitis and skin diseases. But with all their useful properties raspberry itself is completely defenseless against various diseases. So what about gardeners whose plots grow raspberries? The fight against diseases and pests becomes the main task for obtaining an annual crop. Diseases can not only harm the quantity of the crop, but also lead to the death of the plant. Therefore, every gardener should take note of the methods of combating diseases and harmful insects.

How to understand that raspberries are sick?

Raspberry diseases and the fight against them (methods, in particular) are very diverse. Each gardener has his own little secrets, the main thing is to correctly determine what exactly the plant is ill with. Signs can be expressed in different ways, but they will have in common that appearance shrub will change. The changes will affect the leaves or stems, and the fruits will not look very appetizing, or even not appear at all. If the gardener notices that the raspberry tree looks different than last year, then you need to sound the alarm.

Root cancer or goiter of roots - disinfection or destruction

If the raspberry bush began to turn yellow, and outside the window is spring or summer, then this is a sign of a serious illness. Most likely, the plant was struck by root cancer or it developed goiter of the roots. These diseases have similar symptoms: shoot growth stops, tuberous growths appear on the roots, the fruits become unsweetened, and the leaves turn yellow and curl. Most often, these problems manifest themselves in areas where the soil is slightly alkaline or neutral. Raspberries, which you are going to plant in your garden, should be carefully examined. Seedlings with swellings on the roots should be cut off, the affected part of the rhizome removed, and a solution should be prepared for cutting. blue vitriol. Slice processing is required, do not neglect it. For prevention experienced gardeners change the landing site of the raspberry at least once every five years.

Sometimes the leaves turn yellow because the raspberries, which have not been pruned for several seasons, have become too thick. Since the thorny thickets are less ventilated, the bushes do not have enough light, and yellowing of the leaves is a sign that it is time to prune. Do not neglect this procedure, as untimely production will lead to a decrease in the yield of raspberries.

Mosaic - gradual degeneration

If the raspberry turned yellow, which was pruned on time, the reason may be different kinds viral diseases called mosaic. Yellowing begins with the veins of the leaves, raspberries grow worse, the leaves become small, pale and gradually turn yellow. Young shoots gradually degenerate, there is no need to wait for a good harvest.

There are no clearly defined schemes against these diseases, they are not amenable to drug treatment. To avoid the problem, it is necessary to take care of the raspberries and prevent the appearance of aphids, which are the carriers of the disease. Infection with the virus can occur through damage caused by dirty tools and through young root shoots. Diseased bushes are especially noticeable in early summer and late autumn. Mosaic affected areas are mercilessly uprooted. Removed plants are best burned.

Witch's broom - an incurable virus

In the people, this viral disease is called sprouting. Scientists are constantly researching the viruses that cause raspberry diseases, and the fight against them has been going on for many years, but they cannot find justice on a witch's broom. If the owner of the site noticed that many thin small shoots appeared at the root of the raspberry bush, which grow very slowly and are covered with small leaves, and fruiting has stopped, then you need to pick up a shovel and, without regret, destroy diseased plants.

The cause of the disease could be wounds inflicted on the stems by sucking insects and damage by a contaminated tool. It is not worth regretting the lost plants, it was impossible to save them.

Purple, ulcerative and white spotting - fungal diseases of raspberries

Common to these diseases is the defeat of fungal spores, but they manifest themselves a little differently. Infection with purple spotting is determined by light purple spots with black patches in the center. Most often they appear in the places where the leaves are attached. As the disease progresses, cracks appear on the stems and they turn brown.

Ulcerative spotting appears as blurry brown spots. Over time, bulges appear on the spots, in which spores of the fungus ripen. The stem is covered with split loose ulcers.

White spots on stems, leaves and fruits are also a sign of raspberry disease, and it is quite possible to fight them. Actually, the recommended method can be used for all fungal diseases of raspberries. Remember that in order to cope with fungal diseases, you must initially choose the most resistant varieties, immediately destroy cut and dug diseased plants, monitor the density of raspberries, avoid excessive watering and do not plant raspberries in lowland areas. In addition, every spring, during the period of bud break, treat the berry with Bordeaux liquid.

In summer, spraying with preparations containing copper should be carried out. Preventive treatment is carried out three times: with a shoot length of up to 20 cm, just before flowering and immediately after it. If the fungal infection during the year was very pronounced, then the berry can be processed additionally after harvesting.

As you can see, raspberries, the diseases and treatment of which were described above, require a serious attitude to themselves. If the garden plot is neglected, and the shrubs grow uncontrollably, then the likelihood of viral and fungal infections increases significantly. Uncared for berries are threatened by various pests whose bites carry diseases, threatening to spread them throughout the garden.

Garden raspberry pests, descriptions and methods of control

• Raspberry weevil - a grey-black little bug with an insatiable appetite. Blooming raspberries are attacked, as the female lays eggs in the buds. The larvae eat the flowers from the inside, the hatched bugs eat and damage the foliage. The control measure is spraying with insecticidal preparations before flowering and after harvesting.
• raspberry beetle- the main pest of raspberry, damaging the fruit. The body of the bug is dirty yellow, oblong in shape. Infection of the berry with a raspberry beetle makes the crop unfit for consumption. Insecticides are also used to fight, since the raspberry beetle hibernates in the soil under the bushes, and digging the soil during the appearance of pupae also gives a good effect.
• kidney moth- a small butterfly, the main harm is caused by the larvae, which, during the swelling of the kidneys, eat them out from the inside. To destroy the kidney moth, the shoots infected with the pest are cut out, the rest are treated with insecticides.
• Raspberry stem fly- a small gray fly that lays larvae that feed on plants. The larva damages the raspberry stems from the inside, gnawing through the passages in the shoots. The tops of the shoots bend and gradually fade. To overcome this pest, it is necessary to cut and burn the damaged parts of the plants, and spray the remaining parts with an insecticide.
• Raspberry mite - a pest that damages the buds and shoots of raspberries. More than a hundred insects hibernate in each bud of the affected plant. When leaves appear, the pest settles in their lower part. The leaves become spotted and become ugly. Insecticides are used to fight, spraying is done twice: before flowering and after harvesting.

Proper care of raspberries. Repair varieties

The raspberry, whose diseases and pests are so annoying to gardeners, requires careful personal care throughout the entire growing season. It is necessary to loosen the soil in time and remove weeds, carry out mulching twice a season, that is, add humus or compost to the plants. After the second season of fruiting, the old shoots are cut out so that the stumps do not stick out, and the tops of the young shoots are shortened. Weakened, thin and frozen shoots in winter are pruned to the first healthy bud.

Raspberry propagation methods

Experienced gardeners, having ordered several varietal seedlings, ensure that entire plantations appear on their site, on which tasty and large varietal raspberries bear fruit. Reproduction of shrubs is not a very troublesome business. There are four ways of propagation: from roots, cuttings, from seedlings and separation from the mother bush. For example, more than 80 seedlings can be obtained from 1 kg of the roots of a valuable plant. In principle, raspberries tolerate reproduction quite well, so you don’t have to worry about how a new sprout will take root.

Despite the difficulties

By pruning, mulching and spraying on time, you can protect your raspberries and achieve a good harvest. And thanks to remontant varieties, the harvest can be obtained twice a season and extend the enjoyment until late autumn. No matter how long raspberry diseases and the fight against them take, gardeners will not refuse to grow this wonderful and useful plant.

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Diseases of fruit and berry crops and their treatment

All berry crops are susceptible to diseases - plants that are absolutely resistant to diseases, unfortunately, have not yet been bred, although breeders have been struggling with this task for many years. Protecting plants from damage by fungal and viral infections is the primary task of every gardener. Every summer resident who wants to save the harvest without loss needs to know about diseases of fruit and berry crops, as well as priority measures to combat them.

Berry crops, as the most early-growing, with a short vegetation cycle, are most susceptible to many fungal and viral diseases. Dangerous conditions for development and fruiting are created on almost every garden plot. There are many reasons. Here, there is no crop rotation, and the use of random planting material. The most important thing is the fear of gardeners chemicals for plant protection. All this affects the condition of such widespread berry growers as strawberries, raspberries, currants, etc. Insufficient knowledge of gardeners of plant biology and the inability to correctly recognize the main diseases of berry growers lead to crop loss and disappointment in the culture.

Diseases of garden strawberries in the photo and measures to combat them

Here you will learn about the most common strawberry diseases and the fight against them. The most dangerous diseases of strawberries are gray rot, various spots and powdery mildew.

Strawberries are called strawberries for a reason. And many gardeners forget about it. Crops and plantings do not mulch. But strawberries tend to acquire diseases with improper agricultural practices. One of the widespread and harmful diseases of strawberries in all places of its cultivation is gray rot.

Gray rot- This is a disease of garden strawberries that develops in cool weather with high humidity. Frequent watering, frequent rains and wind contribute to its rapid spread. Spores germinate in just a few hours in the presence of drip-liquid moisture. Symptoms of the disease appear on all parts of the plant. On the lower leaves, peduncles, which darken and necrotic, the fruits dry up. In any place of the berries beginning to ripen, more often near the calyx or at the point of contact, rot appears. And as a result, the berries are covered with gray-brown spots. Gardeners, in the current situation, throw out rotten berries in buckets into closely spaced horticultural forest belts, thereby contributing to the further accumulation and spread of infection.

To treat this strawberry disease, it is necessary to mulch the soil in rows with Agrospan 60 black synthetic non-woven material or straw (if any) to reduce soil and air moisture when adverse weather conditions occur. Disinfect straw with Extrasol.

brown spot. Diseases cause no less harm to strawberries: spotting, rot. Brown spotting is ubiquitous, has two waves of development - in early spring and autumn. In summer, during a drought, the disease fades, but does not disappear.

Look at the photo: this disease of garden strawberries manifests itself in the form of red-brown spots of a rounded vague shape, black spots form on top of the leaves on the surface, pillows are the fruiting bodies of the fungus, they are a source of re-infection of plants. The fungus hibernates inside the leaves.

ramulariasis, or white spotting , affects up to 50% of the leaf blade. Small rounded spots appear on the leaves, light gray in the center, with a clear purple rim, the center of the spot falls out, the leaf looks perforated. In humid weather, a light coating of sporulation develops in the form of dense formations, hibernates on leaves, and is a source of infection. You can lose up to 15% of the crop.

Brown, or angular, spotting- the most harmful in the southern regions, affects up to 60% of the leaves, causing their mass death. Light brown spots form, then dark spots with purple spots, the spots increase and grow to the entire leaf. The shape of the spots is angular, they are located along the midrib of the leaf. Angular spotting is more likely to damage older leaves, and the disease progresses in autumn. The disease of brown and brown spotting greatly weakens strawberries, since it develops just at the time when the laying and formation of fruit buds are in progress, which sharply reduces the yield of strawberries. Separate strawberry bushes wither, but other fungal diseases - fusarium, verticillium, late blight wilt can also be the cause of wilting.

powdery mildew. It manifests itself everywhere, depending on the resistance of the variety on the leaves from the underside, forming a gentle, inconspicuous white coating. Then the leaves stop growing, twist in a "boat" and dry out. In humid and warm summers, it is strongly manifested in the center of the bush. And from the berries comes a mushroom smell. The fungus overwinters on the affected parts of plants. Infection begins on young leaves, massively develops during flowering and fruiting, as well as in the second half of summer.

Look at the photos of strawberry diseases and measures to combat them, presented below:

Diseases of strawberries (strawberries) and their treatment

Before flowering, as a preventive measure, use permitted systemic drugs with the addition of Novosil. In the presence of drip irrigation, once every two weeks before the start of setting berries, apply Extrasol together with other mineral fertilizers, while reducing the rate of their application by 2 times.

When creating optimal conditions for the development of the disease (past rains, fogs in the mornings, abundant watering and lowering the temperature), it is not recommended to use chemical plant protection products on berry plantations, therefore we suggest using biological agents (Alirin-B and Gamair). The waiting period in this case is 1 day.

Dispose of the affected berries in pits, burying them to a depth of 80 cm and pouring abundantly with Extrasol working solution, which in this case works as a fungicide.

Watering during fruiting should be done often, but only refreshing, do not allow abundant flooding of the beds or plantations.

Powdery mildew disease of gooseberries and currants and measures to combat it

The following is about powdery mildew - a disease of currants and gooseberries - and their treatment for this dangerous disease.

American powdery mildew(sferoteka) - a dangerous fungal disease of gooseberries and currants (black, red and white). The disease is ubiquitous. It affects leaves, berries and shoots. The mycelium of the fungus is found on the surface of plants. The fungus overwinters on the affected parts of the gooseberry. In spring, spores are shed and infect plants. On the surface of leaves, shoots and berries, a dense gray felt coating of mycelium and spores is formed. Damaged leaves are deformed and dry, the tops of the shoots are bent. With this gooseberry disease, the berries stop growing, remain underdeveloped or fall off. The development of gooseberry disease powdery mildew contribute to high relative humidity (90-100%) and a temperature of 17-28 °C. Hot and dry weather inhibits the development of the disease. Most of all, the disease affects plants overfed with nitrogen fertilizers, or plants weakened as a result of improper care.

Treatment of gooseberries from diseases

The main measure to combat gooseberry diseases is planting varieties that are resistant to diseases. It is also important to regularly fertilize with fertilizers, which contain a high content of phosphorus and potassium. Destruction of wintering powdery mildew by cutting and burning diseased shoot tips. Collection of crumbled gooseberry berries damaged by the sphere library. To treat gooseberries for diseases, frequent loosening under the bushes, thinning and removal of zero shoots is necessary. Treatment of gooseberries for diseases is carried out in early spring with the help of the drug Prophylactin (0.5 l per 10 l of water), the flow rate of the working fluid is 1 liter per 1 bush, then at the time of bud break with Abiga Peak (40 g), again after a week with Topaz ( 2 ml) and a week later with Topaz. In May, usually after precipitation in the form of rain and fog, there is a secondary infection of the berries already, spraying with Topaz (2 ml) or Thiovit Jet (20-30 g) is mandatory.

Photos of gooseberry diseases and their treatment are presented below:

Currant diseases anthracnose and septoria, measures to combat them

This section of the article talks about the most common currant diseases and measures to combat them. You can also see photos of currant disease and treatment of shrubs from anthracnose and septoria.

Anthracnose currant. Anthracnose is a fungal disease that affects all types of currants. The fungus overwinters on the affected fallen leaves, where bag spores are formed in spring, causing primary infection. Very small greenish-yellow, later brown spots appear on the leaves, on which very small varnished tubercles form. With a strong lesion, the spots merge, the lower leaves turn brown, dry out and fall off, remaining only at the ends of the shoots. The disease usually develops in the middle of summer, especially in rainy years. The red currant suffers most from the disease, in which premature leaf fall begins even with a weak lesion. The disease affects leaf petioles, stalks, small brown sores form on green shoots. During the summer, the disease is spread by conidiospores that form at the affected sites.

Septoria, or white spot of currant and gooseberry leaves. A very common fungal disease. It mainly affects leaves, on which small angular or rounded spots with a diameter of 2-3 mm appear. The spots are initially brown, then white with a narrow brown border. On them, in the upper part of the leaves, small black pycnidia of the fungus are formed. Conidiospores ripen in them, with the help of which the disease spreads throughout the summer period. Septoria infects berries, which form small flat spots with pycnidia. Starting from the second half of summer, the disease causes leaf fall. The fungus overwinters on the affected fallen leaves, on the underside of which a large number of small fruiting bodies - pseudothecia are formed. They develop bagospores in the spring, which are the primary source of infection. It must be borne in mind that black currants are more affected by septoria than red ones.

In addition to the above diseases, black, red, white currant the fungal disease affects brown spotting, or cercosporosis, which causes brown spots on the leaves with a light middle. Measures to combat cercosporosis are similar to measures to combat anthracnose and septoria.

Treatment of currants from diseases

Measures to combat anthracnose. Collection and destruction of fallen leaves. Cutting and burning affected shoots. Repeated digging of the soil. Thinning the base of the bush and removing shoots that are not needed for the formation of zero shoots. Treatment of currants from anthracnose disease by spraying bushes is carried out in early spring before bud break, before flowering and after it with the help of copper-containing preparations or their substitutes. Fertilizing plants during the growing season with complete fertilizers with trace elements in a chelated form (Fertika autumn or Fertika spring-summer).

Measures to combat septoria. Selection of immune varieties resistant to septoria and anthracnose. Application mineral fertilizers with macro- and microelements, which include zinc, manganese, boron, copper and other microelements in chelated form. Of the chemicals used are the same as against anthracnose.

Protection of raspberries from viral diseases

Here you will learn about raspberry diseases and their treatment, as well as the prevention of the spread of diseases that affect shrubs.

Viral and mycoplasmal diseases. Raspberry diseases caused by viruses and mycoplasmas are widespread and dangerous. Viral diseases of raspberries infect bushes along with shoots, are carried with planting material, and are transmitted by sucking pests: aphids, thrips, leafhoppers.

Bushiness, "witch's brooms", sprouting. Mycoplasma disease, characterized by the formation of a large number of thin shoots collected in bunches. These are diseased shoots, there can be up to 250 of them, they are shorter than healthy ones. The bush already in the second year after the manifestation of such a formation of diseased shoots ceases to bear fruit.

Infectious viral chlorosis affects growth and biennial stems. In spring, yellowness appears on the leaves along the veins, then it spreads to the entire leaf blade. Usually, with the onset of cool time, closer to autumn, chlorosis weakens somewhat. Damaged shoots become thinner and longer than healthy ones. The berries have one-sided one-sided growth, and they dry out.

Raspberry anthracnose- a highly common fungal disease that affects shoots, blades and petioles of leaves, raspberries and blackberries. Symptoms of the disease appear on the shoots in the form of round or oval, sharply defined, depressed spots with a concave center. The spots are purple at first, then gray with a red-violet border. With a strong defeat, they merge, crack along the stem, forming deep wounds. The bark takes the form of a thick brown scab with an ulcerated surface, on which spores of the fungus appear in autumn. Severely affected shoots dry out. Diseased leaves stop growing, curl and dry out, the berry turns gray and also dries up. Wet weather favors the spread of the disease. The peak of the development of the disease occurs in the period of July-August, when precipitation begins to fall and night temperatures decrease.

Septoria, or raspberry white spot. In wet years, it affects the stems and leaves of raspberries, on which the pathogen overwinters. The first signs of the disease appear at the end of May. Whitish spots appear on the leaves with a narrow brown border up to 3 mm in diameter. On the stems, the spots are small, vague, inconspicuous. The diseased tissue of the stems cracks, peels off. Black dots of sporulation develop on damaged tissues of stems and leaves in summer, which ripen in spring and cause primary infection. If you do not protect raspberries from this disease, then weakened bushes begin to bear fruit weakly and easily freeze out during the winter.

Purple (lilac) stem spotting, or raspberry didimella. A widespread fungal disease of raspberries, mainly affecting stems and buds. External signs appear first on young annual shoots in the form of small purple spots. The spots gradually increase and merge, ringing the shoot. Then they turn brown with a light middle, in which brown tubercles are formed - pycnidia of the fungus. In the spring of next year, the spots brighten, a large number of black balls appear on them - marsupial sporulation of the fungus, the causative agent of the disease. After that, the bark of the stem cracks, peels off, the wood dries out almost completely and they, starting from the top, die. Purple spotting differs from white spotting by the purple coloration of spots in early spring and summer. The development of the disease is associated with the defeat of raspberries stem gall midge and other spots.

Look at the photo of raspberry diseases and their treatment for viral diseases:

Raspberry rust (with photo) and how to deal with it

raspberry rust- another, no less dangerous, fungal disease of raspberries that affects leaves and shoots. It appears in the spring as small light yellow pads on the upper side of the leaves. In summer, light orange, and then dark brown or black pads form on the underside of the leaves - an accumulation of spring and summer rust spores. The black spore pads remain to overwinter on the fallen leaves and will infect the leaves in the spring.

Look at the photo: raspberry rust affects the leaves with a continuous coating of bright yellow sporulation, they dry out prematurely and fall off, shoot growth stops. Rust also affects annual shoots, forming gray ulcers on them, surrounded by a reddish border, most of which are located at the bottom of the stem. Later, fractures and death of the stem occur in the affected area. If the summer turned out to be wet, then the disease progresses until late autumn.

Measures to combat anthracnose, white and purple spots, and rust consist in observing high agricultural technology, selecting varieties that are resistant to these types of diseases. Thinning, removal and burning of fruiting shoots. Usage drip irrigation, making full fertilizer with micronutrients. Protection against pests (aphids, stem gall midges and other disease vectors) with drugs approved for use on berries. Spray on the green cone with copper-containing preparations or their substitutes. Be sure to add stimulants Novosil and Extrasol to tank mixtures. Another method of how to deal with rust on raspberries is to mulch the aisles with black agrospan material or straw manure (if available).

Raspberry curl (with photo) and the fight against it

The following describes the disease of raspberry curl and measures to combat it with the help of special preparations.

Curly raspberry. Viral disease. The root shoots of diseased bushes almost do not differ from healthy ones, only their stems are lower and thicker.

As you can see in the photo, with raspberry curl, the leaves wrinkle, become small, hard, acquire a bronze-brown color on the underside. With this disease, raspberries dry, become sour and one-sided. Curly-affected bushes die within 2-3 years.

Measures to combat viral and mycoplasmal diseases. Timely removal of diseased plants. Do not plant raspberry offspring in their original place for 4-6 years. Take planting material only from healthy plants or in proven nurseries. Bring in complex fertilizers intended for berry crops. Carry out protective measures against aphids and leafhoppers - carriers of diseases with one of the permitted drugs (Fufanon, Kemifos, Aktellik, Alatar, Apaches, Tanrek, etc.). Add one of the following drugs to the tank mixtures to increase immunity and relieve stress: Novosil, Narcissus, Extrasol. Strictly observe the regulations for the use of drugs.

How to treat raspberries for mosaic disease

Mosaic. This viral disease affects leaves and root shoots. Leaves acquire a mosaic color. They become bumpy, slightly convex, one-sided. The color of the leaves also changes in the form of alternating light green and dark green areas. From mid-summer and closer to autumn, the mosaic appears in the form of bright yellow spots on raspberry leaves. Affected plants bear little fruit, the berries are tasteless, dry and woody. The root shoots are thin, the leaves are small, wrinkled. Affected bushes lag behind in growth and die.

Before treating raspberry mosaic and other diseases fruit bushes please read the rules below.

Disease control measures for berry crops are best used agrotechnically:

• choose an open, ventilated, sunny place for placement;
• the best predecessors: onions, garlic, lettuce, herbs, beets;
• should not be placed after nightshade, tomato, pepper, eggplant, potatoes, asters, lilies, gladioli, chrysanthemums;
• do not compact plantings, remove weeds;
• keep the plantation for no more than 3 years;
• purchase planting material at research institutes or nurseries;
• plant varieties only zoned in this zone;
• early in the spring, clean plantations from old leaves;
• during the growing season, remove all mustaches, except for those that will be used to lay new plantings;
• pick berries damaged by gray rot, late blight;
• during the period of "budding" can be treated with immunocytophyte;
• before ripening berries, mulch the aisles with dry grass, sawdust or (if available) straw.

To reduce the number of ticks and diseases, the removal of the leaf apparatus can be recommended, provided that pruning is carried out immediately after the removal of the last berries. Leave cuttings of leaves (1-2 cm) above the heart. Delay is dangerous, the plant is weakened, it does not tolerate wintering well. Water immediately with top dressing full complex fertilizer.

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Raspberry anthracnose. It is a fungal disease of raspberries. Widespread. The disease begins to develop in the spring and ends in the fall. It affects shoots, fruits, raspberry leaves, as well as blackberries. Rounded purple spots with a concave center form on infected raspberry shoots.

Control measures: destroy the affected remains of raspberries; avoid thickening of landings; timely cut the fruiting shoots of raspberries; dig the soil in early spring and autumn; partially destroy heavily infected annual raspberry shoots, cut off the ends of weakly affected shoots. Before bud break, spray with 3% Bordeaux liquid. Before flowering raspberries, during the promotion of buds, as well as after harvesting raspberries, spray with 1% Bordeaux liquid.

raspberry rust

Raspberry rust is caused by the fungus Phragmidium rubi-idaei (Pers). The disease affects raspberries, is ubiquitous, and is more harmful in areas with high humidity.

Signs of raspberry rust: On the upper side of the leaves are small rounded, slightly convex yellowish-orange pads. You can find them both on the petioles and on the central veins. On one-year-old shoots, gray sores with a reddish border appear, which, merging, form longitudinal cracks.

The fungus overwinters with teliospores on fallen leaves. In spring, teliospores germinate in basidium with basidiospores, which cause primary infection of plants. After 2-3 weeks, light orange, later brownish pads of summer spores form on the underside of the leaves, with which raspberry rust spreads in summer period.

Under favorable weather conditions, several generations of spores are formed during the summer. Raspberry rust reaches mass development by mid-summer. Contribute to its development precipitation, high relative humidity. In dry weather, plant damage stops.

At the end of summer, the lower surface of the leaves is covered with a dark coating of overwintering spores (teliospores). With severe damage to raspberry rust, the leaves dry up, which affects both the yield and the winter hardiness of plants.

Control measures:

• burning or composting fallen leaves;
• cutting and burning shoots affected by rust;
• loosening the soil with the incorporation of the remaining affected leaves (the soil microflora destroys teliospores within a month).
• Spring mulching of raspberry plots with manure (the microorganisms present in it destroy rust spores).
• In case of severe damage to the bushes in the spring, before bud break, spraying with a 3% solution of Bordeaux liquid. Fertilizers are also recommended for processing: a 4% solution of ammonium sulfate or a 2% solution of potassium salt. In the summer, before flowering, use a 1% solution of Bordeaux liquid, other recommended preparations.

The disease is widespread in the southeast of Russia. It is rare in Ukraine. In addition to raspberries, blackberries and roses are affected. Irregular brown sunken spots appear on affected shoots. In the future, they grow, acquiring a grayish color. On the surface of the spots are scattered black convex points of sporulation of the fungus Coniothyrium wernsdorffiae, a synonym - Coniothyrium fuckelii. Pycnidia are spherical, with a small papillary stomata, black, 180-200 microns in diameter.

Conidia are spherical or short ellipsoidal, 2.5-5 X 2-3.5 microns in size. olive or smoky. The marsupial stage has not been found in Russia. The maximum development and distribution of conidia occurs in July (sporulation was not found later). By this time, the tissue of the shoot at the site of the spot is destroyed, splits along, acquiring a macerated appearance. The lesion looks like an ulcer, along the edges of which a small tumor often forms. The fungus overwinters in the form of mycelium in the tissues of the affected shoots.

The fungus often develops as a saprophyte on dead raspberry shoots, but under favorable conditions it can infect living raspberry stems. Increased humidity contributes to the disease. Therefore, in thickened, clogged areas, the disease develops more strongly. The penetration of fungal spores is favored by various mechanical damage, as well as damage by insects. The disease causes the death of fruiting twigs. Berries are formed of poor quality.

Control measures. Due to the fact that the disease is transmitted with planting material, careful culling of affected seedlings is necessary. Cutting and burning diseased shoots. Avoid overcrowding the area. The rest of the control measures, including spraying with fungicides, are the same as with raspberry anthracnose.

White spot or raspberry septoria

It is a fungal disease of raspberries. Widespread. It affects the stems and leaves of raspberries, as well as blackberries. Light brown spots up to 3 mm appear on raspberry leaves. in diameter. Then the spots turn white and form a thin brown border around them. Black dots are visible on the spots - sporulation.

Gradually, the center of the spot is destroyed. On diseased raspberry stems (near the buds in the central part of the shoot), whitish spots with black dots appear.

The disease begins to develop in the spring, reaching its greatest strength during the ripening of raspberries.

Control measures: destroy the affected remains of raspberries; avoid thickening of landings; timely cut the fruiting shoots of raspberries; dig the soil in early spring and autumn; partially destroy heavily infected annual raspberry shoots, cut off the ends of weakly affected shoots.

Before bud break, spray raspberries with 3% Bordeaux liquid. Before flowering raspberries, during the promotion of buds, as well as after harvesting raspberries, spray with 1% Bordeaux mixture.

Purple blotch raspberry

It affects weakened raspberry bushes damaged by insects. On young annual shoots near the places of attachment of leaves appears feature diseases - purple-brown blurry spots.

They gradually grow, merge and further ring the entire shoot. On leaves, petioles and fruit twigs, the disease manifests itself in the form of large necrotic spots, which lead to their drying.

Control measures: Planting relatively resistant varieties, destroying infected plant residues, respecting the recommended planting density, ensuring good ventilation. Avoid over-watering and avoid placing raspberries in low, damp areas.

After harvesting, cut and burn the infected annuals, as well as the fruiting shoots, leaving no stumps. Cut off the ends of weakly affected shoots. In late autumn or early spring, dig up the soil under the bushes with phosphorus-potassium fertilizers embedded in it.

In the spring, at the beginning of bud break, treat the berries with 1% Bordeaux liquid. In summer, carry out preventive spraying with Bordeaux liquid or copper oxychloride (30-40 g per 10 liters of water). Spraying terms: the first - with a length of young shoots of 15-20 cm, the second - before flowering and the third - immediately after flowering. With a strong development of the disease, spray even after harvesting.

In the spring, separate the root with the rudiments of the offspring from the diseased raspberry bush and plant it in another place. During the summer, he will give one or more shoots. The separation of the offspring from the bush makes it possible to obtain planting material free from purple spotting.

Raspberry chlorosis

Symptoms of raspberry chlorosis: By mid-summer, there is a strong yellowing of raspberry leaves. In the initial stage of the disease, the leaves turn yellow along the veins, with the development of chlorosis, the entire leaf plate acquires an autumn color.

By autumn, leaf chlorosis subsides slightly.

The shoots of the root shoots of the infected bush become thinner and stretched compared to healthy plants.

The berries become one-sided, but often dry up without ripening.

Raspberry varieties prone to infectious chlorosis: Usanka, Marlboro, Turner, Novosti Kuzmina, Yellow Spirina, Fastolf.

Measures to combat raspberry chlorosis: viral diseases are practically not subject to treatment. Bushes showing signs of disease should be uprooted and burned. Ways to combat the disease are only preventive in nature - the use of healthy planting material, timely treatment of plants against sucking insects to prevent the spread of raspberry chlorosis, and compliance with quarantine measures. You can choose raspberry varieties that are more resistant to infectious chlorosis.

Cause of illness:

Root bacterial cancer (root goiter) is a long-standing, well-known disease of raspberries. It is common in the North-Western, Central, South-Eastern zones of the country, found in Siberia, Kazakhstan, and the Far East.

Root cancer in the foci of the disease affects up to 50-60% of raspberry plants, more often with prolonged cultivation in one place. The harmfulness of the disease is therefore especially strong because raspberries do not tolerate the insufficiency of root activity very well. Plants are sharply weakened, the root shoots of diseased bushes are half that of healthy ones, the shoots are thin, the leaves are yellow, the berries are small and dry.

Harvest, frost resistance and drought resistance are sharply reduced. Complete death of plants is not observed due to abundant shoot formation in raspberries. Often, due to root cancer (especially in areas where the infection is massive), the cultivation of raspberries becomes impossible.

Pathogen- bacterium Pseudomonas tumefaciens Stev. The pathogen is polyphagous, easily infects many plants from various families, especially apple trees, young fruit trees in nurseries, gooseberries and currants.

The disease affects the rhizomes, the bases of the shoots of the root shoots, the roots. The pathogen enters the root system mainly through wounds inflicted during tillage or insects. Tumors ranging in size from a pea to nodules with a diameter of 3-5 cm or more develop on diseased organs.

The surface of the tumors is brown, smooth, later bumpy, rough, with cracks. Inside the fabric is light, solid. After 1-2 years, the tumors disintegrate, infecting the soil, where the viability of the pathogen persists for up to 2-3 years. Then the bacteria die under the influence of antagonist microbes. Favorable for the pathogen is the alkaline reaction of the soil, and inhibits its development - acidic.

The disease spreads through the soil, as well as flood waters. The infection is introduced to new areas with water, soil and planting material, when inconspicuous, small tumors are not removed from the offspring.

There are no raspberry varieties immune to the disease; extremely susceptible to it - Marlboro, Cornish, Victoria and Kaliningrad; strongly amazed - Vislukha, Progress, Novosti Kuzmina and Usanka; less - Yellow Spirin.

Control measures. It is necessary to carefully examine the root system of planting material, select healthy plants, use less affected varieties. Small nodules should be removed, the roots of all plants should be disinfected by immersion for 5-10 minutes. in a 1% solution of copper sulfate, and then washed in clean water.

It is impossible to place raspberries in areas flooded by floods; it is undesirable to cultivate them after such predecessors as fruit nurseries and apple orchards. In areas where foci of cancer are found, raspberries cannot be planted for 2-3 years. It is recommended to sow legumes and cereals to improve the soil, to suppress the vital activity of the cancer pathogen by introducing manure, which activates the antagonistic flora.

Raspberry mosaics

Wild-growing and cultivated raspberries and blackberries often fall ill with many viral diseases. Depending on the properties of the pathogen, they manifest themselves in different ways. Mosaic-type diseases (chlorotic spots) are the most common.

Raspberry fan-shaped mosaic appears in the form of chlorotic, light, narrow or wide stripes stretched along thick or thin veins.

Sometimes the wider stripes near the thick veins are connected to the narrower stripes near the thin veins and form a peculiar herringbone pattern. In another case, fan-shaped bands are found only along some major or minor veins.

Another viral disease, large-spotted raspberry mosaic, appears as light green or yellowish spots that fan out along the primary and secondary veins. In addition, independent ones are scattered on the leaf blades. More or less round spots.

The leaves are smaller than normal, gradually deform (bent in the form of a spoon) and dry out. In a later stage of the disease, the shoots shorten and their tops dry out. Of the other viral diseases, we note raspberry spotting. vein chlorosis of raspberry. small-spotted raspberry mosaic, etc.

The following viroses manifest themselves in the form of various ugliness of individual plant organs: raspberry curl or raspberry viral stubbornness (see p. 56). We also know raspberry viroses, in which the signs of two types of diseases appear together, for example, vein mosaic and raspberry dwarfism.

Some other lesions are superficially reminiscent of viral diseases (eg chlorotic spots on leaves after sucking on mites, etc.). This complicates the definition of the disease. Mosaic is transferred with cuttings, layering and aphids. Raspberry curl, vein mosaic and raspberry dwarfism are also carried by nematodes. Many of the viroses spread rapidly. In plants, growth slows down, the yield decreases, and often raspberries die.

Control measures: removal of diseased and weak plants. For reproduction, only healthy material should be used. Chemical warfare - against carriers of the disease.

Curly raspberry

Symptoms of raspberry curl: the root growth of diseased plants differs little from healthy ones, its stems are more stocky, low and thickened.

The symptoms of raspberry curl are more pronounced on the leaves - they are wrinkled, small, hard with a bronze tint (especially on the underside of the leaf).

Fruit clusters are ugly, berries are dry, lopsided, sour.

Raspberry, infected with curly, dies within four years.

Measures to combat raspberry mosaic: viral diseases are practically not treatable. Bushes showing signs of disease should be uprooted and burned.

Ways to fight with the disease are only preventive in nature - the use of healthy planting material, timely treatment of plants against sucking insects to prevent the spread of raspberry curl, compliance with quarantine measures.

Cause of illness: A viral disease of raspberries caused by the smallest particles of a living protein substance - a virus that lives and develops only in the cells of living organisms.

Viruses spread with the juice of diseased plants, sucking insects (aphids), herbivorous mites, during grafting of diseased cuttings on healthy plants, when pruning diseased and healthy crops without intermediate disinfection of the instrument, they are transferred with planting material (root shoots).

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• an anecdote about folk medicine ... One very wise man never trusted doctors and always got rid of diseases himself, with the help of old books folk recipes. He lived for a hundred years and died only because of a typo in this book.

Raspberries are relatively unpretentious berry bush, but diseases and pests can cause quite significant damage to it. The main raspberry diseases and their control are described below. Raspberry disease purple spotting and how to deal with it A characteristic sign of purple spotting is the appearance of purple-brown spots of a blurry shape on young shoots of a shrub near the places where the leaves are attached. Over time, the spots grow and gradually ring the shoot completely. Leaves, petioles and fruit twigs are covered with large necrotic spots and eventually dry out. Purple spot usually affects raspberry bushes damaged by insects. The fight against this raspberry disease consists in cutting without leaving stumps and burning shoots infected with purple spot. Do this after harvest. In early spring and late autumn, the soil under the bushes is dug up with the addition of phosphorus-potassium fertilizers, and at the time of bud break, the bushes are treated with 1% Bordeaux liquid or Topaz. 2 milliliters of "topaz" are dissolved in 10 liters of water. 1% Bordeaux liquid, which is 50 grams of vitriol and 50 grams of lime dissolved in 10 liters of water, raspberry bushes are also processed after harvesting. Raspberry anthracnose disease Anthracnose raspberry disease manifests itself in late May and early June by the appearance of small purple spots on the lower parts of replacement shoots that have just sprouted from the soil, as well as on root offspring. Gradually, the spots increase, are pressed in and acquire a gray color with purple edging. Over time, with an anthracnose disease, the bark of raspberry shoots cracks, its infected areas exfoliate, ulcers and nodules form on the bark. The ends of the shoots gradually die off. On raspberry leaves, when it is infected with anthracnose, small gray spots form along the veins, gradually they curl up and dry out. The berries of diseased raspberries are small, brown, ugly in shape. The fight against this raspberry disease is similar to the measures used for its purple spot disease. Raspberry septoria disease With raspberry septoria, multiple light spots appear on its leaves, bordered by a dark stripe, round in shape. In the middle of summer, black dots appear in the center of light spots. These are pycnidia that retain the pathogenic fungus until next spring. Over time, the leaves of the raspberry disease with septoria turn brown, dry, and then fall off. Small spots also appear on infected stems, their bark cracks and peels off, the stems break very easily. They fight raspberry septoria in the same way as with purple spotting. Raspberry fungal disease - gray rot Gray rot affects the fruits and leaves of raspberries. A gray coating appears on the edges of the leaves, a coating also appears on the berries, gray and fluffy, as a result of which the berries become inedible. The development of gray rot is greatly facilitated by high humidity and heat. The fight against gray rot is carried out as follows: before the leaves bloom, the plant and the soil around it are treated with "topaz"; during the period of tying berries, the soil around the shrub is treated with crushed charcoal or ash. Watering the plant by sprinkling during this period is not recommended, as it contributes to the spread of the disease. Another fungal disease of raspberries is white spotting. With this disease, small brown spots appear on the leaves of the plant, which eventually turn white and become covered with black dots. Blurred spots also appear on the shoots of the shrub. Gradually, they cover the shoots almost completely and the bark on them cracks. The consequences of the raspberry disease with white spotting are small and tasteless berries. The fight against this raspberry disease is carried out with the help of the Energen preparation (it takes 20 drops per liter of water), which the shrub is treated with before flowering. After the last picking of berries in dry and warm weather, raspberries are sprayed with an aqueous solution of colloidal sulfur (40 grams of sulfur per 10 liters of water) or "topaz" (2 milliliters of the drug is needed for 7 liters of water). For 10 square meters of raspberry bushes, 2 liters of solution are needed.

Raspberries have good immunity and rarely succumb to disease. Caring for her does not cause much trouble. But sometimes diseases can destroy raspberries in a few years.

Diseases of garden raspberries are easier to prevent than to cure. The correct system of agricultural technology, timely processing of shrubs, fertilization, destruction of pests - The best way protection of raspberries from diseases.

To know why the leaves wither, the stems dry up, the berries rot, you need to figure out what type of disease the plant has undergone.

The main raspberry diseases are of viral or fungal origin.
Viral diseases are carried by insects (aphids, mites), through plant pollen or untreated garden tools. Some types of viruses spread through the soil.
Fungal - through the spread of spores of the fungus.

Diseases of remontant varieties, like raspberry diseases, are usually the same. Most often, plants are exposed to anthracnose, varieties of spotted diseases, infectious chlorosis. But remontant varieties are more resistant to pests and diseases.

Viral diseases of raspberries

Viral diseases of raspberries affect weak bushes.
A bush infected with a virus is not treatable. There is only one way out: to prevent the spread, remove the plant with the root and burn it. To protect raspberries from viral diseases, preventive measures are suitable for removing insects, processing garden tools, collection and burning of leaves in autumn, regular pruning of stems.

• infectious chlorosis

Another name for the disease is jaundice. It is possible to detect the disease at the initial stages due to pronounced symptoms. Appears in early summer. At the top of the stems, raspberries develop unnatural yellow leaves. Later, the upper shoots of raspberries also acquire this color. The bush stops growing and developing. Berries become small and flat. By autumn, the symptoms of raspberry chlorosis disappear, but the disease does not go away. If the bush is not removed, the next year the focus of the disease increases greatly.

• Raspberry mosaic

The disease is of two types. Depending on the virus that causes the disease, it can be large-spotted or fan-shaped. Raspberry leaves become variegated. Symptoms of the disease are very similar to chlorosis. With chlorosis, the entire leaf turns yellow. Raspberry mosaic is distinguished by a pattern of light green or yellow spots. The brightness and size of the spots appears depending on the conditions. Raspberry bushes cease to develop and bear fruit. If the mosaic is not treated, the raspberry dies in 5-6 years.

Curly

The most dangerous type of viral disease of raspberries. It does not show up in the early stages. Symptoms of the disease: the shape of raspberry leaves changes. The extreme parts twist along the main vein. The vein becomes glassy and dies. Young shoots are small, zigzag. Their growth stops. The disease is transmitted only by one type of sedentary aphid. But the danger of this disease is that the soil is affected. Planting raspberries on this land is not recommended.

• raspberry sprouting

This viral disease is very aggressive. Another name is "witch's broom". Raspberry spreads quickly. It is transmitted through poor-quality planting material. Symptoms: a lot of shoots grow. Young shoots do not develop. The bush does not die, but ceases to bear fruit. Remontant varieties have good resistance to overgrowth.

• Bush dwarfism

The virus is transmitted with pollen over long distances. The danger of the disease - there are no visible manifestations on the stems and leaves. Symptoms appear during the sight of berries. The fruits crumble, do not hold their shape (loose)

How to treat

Viral diseases of raspberries can be prevented if preventive measures are followed.
When planting new bushes, it is important to check them for diseases. Besides:

• timely remove diseased plants;
• treat from sucking insects; Processing is carried out even when there are no visible signs of insects. The first time is sprayed during bud break (aphids appear from eggs), the second - before flowering (winged aphids appear);
• carry out timely soil agrotechnics, apply fertilizers regularly. Healthy plants are resistant to diseases.

Simultaneous protection of raspberries from pests and diseases - milestone elimination of viral diseases

Bacterial and fungal diseases

The most insidious disease of raspberries is stem cancer (another name is ulcerative spotting) and root cancer. Quickly destroys all plantings of the plant. At the initial stage, there are no external signs. In the later stages, dots of brown or black appear on the trunks. Formations quickly increase in diameter and grow. Black spherical tubercles grow on the spots. Later they crack and a gray powder spills out. This is how cancer spores spread.
Raspberry root cancer is transmitted through the root system.

There is no cure for this disease. You can find it when buying planting material. The shape of the root has ugly growths. Before planting raspberry bushes, the roots for prevention are treated for 2-3 minutes with a 1% solution of copper sulfate.

Fungal diseases of raspberries, how to treat them

Fungal diseases of raspberries appear from the defeat of fungal spores. All fungi actively develop with a large amount of moisture. Planting raspberries in low or wet areas is not recommended. Highly thickened areas of raspberries contribute to fungal diseases.
Description of fungal diseases of raspberries:

Raspberry anthracnose

The first description of the disease is mentioned in 1880. The cause of anthracnose is a lack of potassium and phosphorus. The fungus affects leaves, stems, young shoots and green berries. Small spots 1-3 mm in size appear on the leaves. Formations are brown. Along the edges - a red-brown border. Each spot is a new source of infection. The stain peels off and disappears. Later, the same foci are formed on the stems, merge. The bark is cracking. Young shoots of an infected bush dry up. Due to the change in color of the bark to gray in autumn and winter, the disease is called "gray bark". Raspberries are sometimes affected. They don't shed and dry.
Anthracnose control methods:

• removal of diseased stems. Pruning should be carried out low so that there are no stumps left;
• spring processing of raspberry plantations. Apply Bordeaux liquid (3%), copper oxychloride (0.5%), nitrafen (3%) three times. Raspberries are processed during the active growth of young shoots, before and after flowering;
• adding micronutrients. Regular feeding enhances disease resistance

crimson rust

On the top of the leaves appear voluminous dots of ocher color. Under the leaves - the same spots of brown color. Rust-infected raspberry shoots slow down growth. They appear ulcers with a red-brown edge. In these places, the bark begins to crack. Diseased stems break and dry out. cracked bark
becomes a breeding ground for the fungus.
How to deal with rust:

• removal of infected areas. Diseased trunks are removed to the root;
• fungicide treatment. Spraying is carried out before flowering and after harvesting. An effective method of dealing with raspberry rust is mulching the soil with manure. Fertilizer microorganisms destroy fungus spores.

purple spotting

This type of disease affects plantings on which leaf-eating insects have settled. At the initial stage, the tips of the leaves and the tops of the stems are covered with purple and purple spots. Over time, the spots affect the entire leaf along the veins and kill it. Fruiting stems die.

How to treat purple spotting:

• conduct spring pruning affected areas;
• treat the plants with Bordeaux liquid before flowering;
• burn the affected shoots.

white spotting

Another name is raspberry septoriz. The disease is not as aggressive as other fungal ones. But if not removed in time, it greatly weakens the bushes. Gray mosaic patterns appear on infected leaves. The central parts of the stain dry, crumble. The leaves are covered with holes. Gradually, the signs spread to the whole plant. The bark cracks, falls off. Plantations weakened by white spotting may die in winter.
How to treat raspberries for white spot:

• treat with a solution of colloidal sulfur (40 g of the drug per 10 liters of water);
• in the spring, before the opening of the kidneys, phosphorus-potassium fertilizers are introduced into the soil.

autumn spotting

The first signs appear in early July. Young and old leaves are affected simultaneously. The spots are brown, angular, limited on the veins. They don't crack. Fungus grows on the surface of the spots. With strong humidity, the hearth bursts. Spores enter the soil and spread to other bushes. In the spring, the foci of the disease increase.
It is necessary to fight the disease with the help of treatment with a solution of nitrafen. Dilute 150 g of the drug in 5 liters of water.

Gray rot

The fungus damages leaves, flowers, buds, fruits. The first evidence is the formation of a gray coating on the leaves. A soft white coating appears on the berries. The disease occurs with excessive moisture and heat. Usually, it happens in rainy summer.
Precautionary measures:

• before the berries begin to ripen, the soil under the raspberries is mulched with crushed charcoal or sprinkled with ash;
• spray the soil and stems with HOM (10 g of the drug per 2.5 liters of water)

General measures to prevent fungal diseases

Fungal diseases of raspberries and the fight against them largely depend on the timely start of treatment. In addition, preventive measures are needed:

• buy quality planting material. Plant varieties that have good disease resistance;
• prevent waterlogging of the soil;
• timely apply fertilizers with a high content of potassium;
• take care of raspberries: regularly thin out dense shoots to increase the access of wind and sun to the stems.

Raspberry diseases and their treatment take a lot of time. But with proper care of the plant, knowledge of the description of the symptoms of diseases and methods of dealing with them, you can achieve good results in one season.

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The fight against diseases and pests of raspberries should be given no less attention than other agricultural practices that stimulate active growth and increase the yield of shrubs. Especially harmful to raspberries are gall midges, nutcrackers, raspberry beetles, raspberries, and strawberries. Among the diseases, the most dangerous are bacterial cancer, mosaic, rust, didimela and anthracnose.

Without knowledge of measures to combat diseases and pests of raspberries, it is impossible to obtain good harvest berries. On this page you can read the description and see photos of the most dangerous diseases and pests for shrubs.

Raspberry stem gall midge. It is widespread in southern and middle lane Russia. This is a black mosquito (fly) only 1.5-2 mm long with a brown back and two transparent wings. Larvae are orange-yellow. They damage the stems of raspberries and blackberries, causing the formation of clearly visible swellings (galls) in the lower and middle parts of the stem.

The larvae overwinter inside the galls, 2-11 pieces each. In the spring, they continue to feed and, having reached a length of 3-4 mm, pupate, and at the end of May, during the flowering period of raspberries, adult mosquitoes appear, laying eggs on young shoots (8-15 pieces each). A month later, barrel-shaped gall swellings form at the sites of damage. They are especially visible in autumn, after leaf fall. These swellings reach a length of 3 and a width of 2 cm. Cracks form on the galls, the skin on them lags behind. Above damage, the shoot dries out or breaks off.

The insect can damage more than 70% of raspberry shoots. To combat this raspberry pest, damaged stems are cut and burned in spring and autumn. It is necessary to cut off 2-3 cm below the swollen gall, and not at the very base. When the swelling is located above 40-60 cm from the ground, a harvest of berries is still possible on the remainder of the shoot.

How to process raspberries from these pests in order to destroy the gall midge? Chemical spraying is carried out with one of the preparations ("Alatar", "Fufanon", "Inta-Vir" or "Iskra-M", "Aktellik") during the period of the pest's flight and oviposition. The growing shoots are sprayed below when the first flowers appear on last year's shoots. If the growth is dense, it is first thinned out, leaving no more than 10-12 pieces of the strongest per 1 m2. To protect raspberries from pests when spraying shrubs, it is advisable to alternate the preparations.

Raspberry Nutcracker damages raspberry stems; larvae, feeding on the tissues of the stem, cause swelling and cracking of the tissue. Infected shoots also break easily, bear less fruit, or dry out. Outwardly, it differs from the stem gall midge in the size of the swellings, which reach a length of 10 cm. The measures to combat these raspberry pests are the same as with gall midges.

Raspberry shoot aphid. Distributed everywhere. Especially strongly damages raspberries and in shaded places. Large colonies of aphids of this species inhabit the ends of shoots and inflorescences, causing leaf curling, growth inhibition, curvature of shoots, and shortening of internodes. On damaged shoots, the flowers are underdeveloped and often dry up.

As you can see in the photo, the aphid raspberry pest is a very small, light green insect covered with a wax coating:

Aphid eggs overwinter on annual shoots near the buds. The pest hatches simultaneously with bud break. Aphid colonies are formed when buds appear in raspberries. Aphids are especially dangerous in dry years. Its harm is intensified as a carrier of viral diseases.

Aphid control can be carried out before flowering and after harvesting with one of the above drugs.

Raspberry strawberry weevil damages raspberries, strawberries and strawberries. On plants, pedicels are quite common, which are devoid of buds. One gets the impression that someone cut the buds from such pedicels. Sometimes buds come across, as if cut off, but hanging on a film. This is how the weevil damages strawberries and raspberries. These are small grayish-black beetles 2-3 mm long. They hibernate under fallen leaves and clods of earth. At the beginning

They patch up on young leaves, and by the beginning of flowering, strawberries and raspberries lay their eggs inside the buds, while gnawing the pedicels, which is why the buds break and fall off or fade, remaining hanging on the pedicel. The larvae that hatch from the eggs remain inside the buds and eat them out.

The fight against the weevil must be carried out during budding, no later than 5-6 days before flowering, using the same preparations as against the stem gall midge. With the mass appearance of a new generation of weevil in the summer, it is advisable to spray with one of the named pesticides immediately after harvesting to kill the beetles before leaving for the winter.

raspberry beetle- one of the most dangerous pests of raspberries. More common in neglected gardens. The body of the beetles is covered with dense rusty-yellow or grayish hairs, which determines their general coloration. Their size is small, about 4 mm long. Beetles and adult larvae hibernate in the upper soil layer. In spring, when the soil warms up to + 12 ... + 13 ° С, the beetles come to the surface. They need additional nutrition and only after that they become capable of reproduction.

At first, the beetles feed on nectar and anthers of flowers of early-flowering weeds, then they damage the flowers of currants and gooseberries, and a little later they can be found on flowers. fruit trees. In mid-May, during the nomination of raspberry buds, beetles focus on this culture, eat out buds, damage leaves and flowers. By the beginning of raspberry flowering, females lay eggs, placing them one at a time in flowers and in young ovaries.

Each female can lay up to 40 eggs. After 10 days, the larvae hatching penetrate into the berries, which become ugly and dull, shrink, wither and rot.

Adult larvae are yellowish in color, live in raspberry fruits for 40-50 days and reach a length of 6-6.5 mm. At the end of July, the larvae leave the fruits and go into the soil, where they first turn into pupae, and then into beetles, which remain to winter in the soil.

When harvesting, many larvae (worms) remain in the berries, from where they quickly sink to the bottom of the container.

The fight against the raspberry beetle is carried out during budding with the same preparations as with the stem gall midge, no later than 5-6 days before the start of raspberry flowering. With the mass appearance of a new generation of pests, it is advisable to re-spray immediately after harvesting to kill the beetles before wintering.

Raspberry glass, which causes wilting of raspberry shoots, is less common in the southern region than gall midges, weevils, and beetles. But with poor care, raspberries are also very dangerous.

With a sharply colored bluish-black body, with transparent glassy wings, they somewhat resemble a wasp. Caterpillars hibernate inside raspberry stems at their base. In the spring, they continue to damage the stems, eating away their core. Having finished feeding, the caterpillars inside the passages turn into pupae, having previously made several holes for the butterflies to exit.

The butterflies emerge in July and lay their eggs on the soil near the base of the stems. The female's fertility is up to 200 eggs. The caterpillars that emerge from the eggs burrow into the stems and roots.

To combat the glass case, careful low cutting and burning of damaged and withering shoots, timely removal of fruit-bearing stems is necessary.

Ticks, mostly arachnoid, populate raspberries in hot, dry weather in July - August. Fufanon, Iskra-M or Aktellik will help here, on remontant varieties- "Garden sulfur, colloidal" or "Thiovit Jet".

Diseases of berries and raspberry leaves: photo, description and treatment

Purple spotting, or didimela. This is a fungal disease: oblong purple spots appear on green stems. It is common in various countries and has been known for a long time; in subsequent years, the damage from it intensifies. It mainly affects stems and buds, the ability of the disease to infect leaf petioles, veins, and twigs is noted.

The signs of didimela are very typical, especially in the initial stage.

Look at the photo of this raspberry disease - blurry purple spots appear on the affected shrubs below the place where the leaf petiole is attached:

The spots increase rapidly and stand out sharply against the background of the light bark of annual Raspberry shoots. As the spots grow, they become brown-brown with a brighter middle, on which brown large tubercles are scattered - pycnidia of the fungus. The spots cause cracking and peeling of the bark; merging, ring the shoots that break and dry out. Kidneys on diseased bushes do not develop.

The disease spreads in August - September, when there is a mass maturation of spores of the didimela pathogen. The development of the disease is facilitated by wet weather, heavy dew, strong planting density, poor sunlight and raspberry damage by stem gall midge. Older bushes are more susceptible to purple spotting.

Raspberry varieties are brown- and red-stemmed with smooth bark and are relatively resistant to purple spotting.

powdery mildew affects raspberries in years with high humidity, as well as in dense and shaded plantings. At the ends of the growing shoots, a white, initially tender coating develops on the upper and lower sides leaflets, partially capturing their petioles and the young ends of the shoot itself. In humid conditions, plaque becomes powdery and easily visible. In less favorable conditions, the plaque is difficult to detect, as it merges with the white hairs of the pubescence of the raspberry itself. Raspberry leaves affected by this disease stop growing and become chlorotic.

The disease develops in the first half of summer, including the period of berry ripening. The causative agent of the disease in winter remains in the buds of affected shoots, partly on fallen diseased leaves. Harmfulness is expressed in the oppression of the ends of the shoots and leaves of raspberries. Under the influence of the disease, they die off or, without ripening, freeze out. Raspberry berries affected by this disease become small, with an unpleasant bluish color and a mushroom smell.

Anthracnose can appear on raspberries with regular immoderate watering. This is a fungal disease in which very small, rounded, at first, as if punctate, then slightly increasing spots of 1-3 mm in diameter are formed on leaves, petioles, shoots, fruits. The spots are grayish in the middle, surrounded by a wide purple border. The spots are scattered unevenly, but often located in the folds and along the veins of the leaf. Without treatment for this raspberry disease, the spots merge. Affected tissue in old stains may fall out. On the petioles, the spots are very small, depressed in the form of sores, merging.

On stems, anthracnose begins with the formation of individual small deep cankers surrounded by a wide purple border. The affected part of the stem is covered with brown, corky, cracking tissue, as a result of which they die prematurely. Affected berries stop pouring and dry out.

The causative agent of the disease overwinters mainly in the shoots, partly in the affected leaves. Most often, the disease enters new areas of raspberries with affected planting material.

The development of anthracnose occurs in the spring - after the leaves bloom. The further course of the disease depends on the weather. The disease develops very strongly in wet years. During the ripening of the crop, anthracnose appears in mass, completely covering the fruit clusters, which die prematurely with many unripe berries.

White spotting (septoria) raspberry leaves are damaged. In this case, rounded spots of medium size are formed, initially pale brown, then whitening, with a persistent brown border. Over time, the whitened center of the spot collapses and falls out. With a strong development of the disease, there are a lot of spots, the tissue between them turns brown, and a significant proportion of the leaf blade dies.

Rust. The first signs of it appear on the upper side of the leaves in the form of individual yellow-orange tubercles, then they become black powdery. In the stem form, rust affects the lower part of the stem, which is at ground level. The affected tissue of the stem turns brown, covered with light-colored sores. In places where the largest ulcers develop, the raspberry stem becomes flat. The next year, with continued growth of shoots, large rust ulcers crack with deep longitudinal cracks. If you do not take measures to protect raspberries from this disease, there is a complete death of the shoots. Mass disease of the leaves leads to their premature drying.

verticillium wilt causes wilting of annual raspberry shoots. In this case, the lower leaves turn pale, then turn yellow, and the tissue between the leaf veins dies. The internodes are shortened, the shoots become short, the bark cracks in the form of a gap, the roots turn brown, the tops of the shoots wither, droop, and the shoot dies.

gray rot raspberries can be affected in wet and cool weather. At the same time, they are covered with a gray velvety dusty coating of the fungus - the causative agent of the disease.

Viral diseases of raspberry: mosaic, streak and growth

Raspberries are also affected by viral diseases - the most common of them are curl, mosaic, streak and overgrowth.

Curly leads to a shortening of the length of the shoots, twisting of the leaves along the veins, which become glassy.

Mosaic It manifests itself in signs typical for the name of the disease - the variegated coloring of the leaf blade with dark and light-colored spots. These spots, depending on the conditions, can be larger or smaller, brighter or paler. Mosaic coloring of the leaves happens with elements of spotting and is accompanied by the formation of tuberculous swollen areas on the leaf blade. Due to the growth retardation of the edges of the plate, each leaflet acquires a general bulge. The mosaicity of the leaf is masked in the hot season of summer, but in autumn the disease reappears, forming bright yellow blurry spots on young leaves.

Shoots at the beginning of the disease do not sharply shorten, but become thin, rod-shaped. The fruit cluster develops poorly, shortens, gives a small amount of one-sided, small, dry, sour berries.

The mosaic is transferred with planting material. In diseased bushes, frost resistance is reduced, and often the affected bushes die off after wintering.

With infectious chlorosis, the leaves turn yellow on both annual and biennial shoots. Chlorosis is caused by a virus. The highest development of chlorosis coincides with the period of fruiting, which enhances its negative impact on the quantity and quality of the crop.

Streak (banding)- necrotic stripes or strokes on the stems of young annual shoots. In affected stems, the internodes are shortened. The leaves on them are brought together, spirally twisted, pressed against the stem. Diseased plants live on average 2-3 years and then die out completely.

Growth ("witch's broom")- also a viral disease, leading to the formation of a large number (up to 200-250) of very thin stems, similar to raspberry shoots from seeds.

Raspberry root disease bacterial cancer

Bacterial root canker causes pea- to walnut-sized tumors to form on raspberry roots and at the base of shoots. Tumors with a bumpy surface, brown above, light in the middle, sometimes fissured, hard. The causative agent of the disease is bacteria that penetrate the root system through natural, mechanical holes, insect damage. Tumors disintegrate after 1-2 years, infecting the soil.

Raspberries are more often affected by root cancer during long-term growth in one place, where there are up to 50-60% of diseased plants.

In new areas, this raspberry root disease is introduced with affected planting material, in which small tumors are often not noticed and not removed.

The harmfulness of root cancer is manifested in the weakening of the development of the affected shoot. The diseased root shoot is half lower than the healthy one, thinner, the leaves are yellower. The berries of biennial shoots are small, dry. The yield is drastically reduced. Diseased plants are less drought-resistant and frost-resistant. In those areas where there is root cancer, it usually has a massive distribution.

Root rot in raspberries is also caused by Fusarium fungi.

Treatment of raspberries from diseases and preventive measures

To prevent raspberries from getting sick, it is necessary to protect the root system from mechanical damage (do not dig the soil and do not loosen deeply). Another preventive measure against raspberry diseases is not to grow in one place for more than 7 years; return raspberries to the old plots no earlier than in 3-4 years.

Planting should be done only with healthy plants on a well-fertilized garden bed. In the summer, immediately after the end of the harvest, carefully cut out the young stems that bear fruit and severely affected, do not leave stumps. Burn diseased stems. During the summer, thin out plantings, weed from weeds.

How can raspberries be treated for diseases in order to prevent the spread of infections in the garden? Spray the shrubs with any copper-containing preparation (1% Bordeaux liquid, Copper Chloroxide, Hom, Oxyhom or Abiga-Peak). In case of rainy weather, repeat the treatment of raspberries for diseases after 10-14 days.

Also, to combat raspberry diseases, the following measures should be taken:

• In order for plants to fight diseases themselves, it is necessary high level agricultural practices (good landing site, regular watering, fertilizing, weeding, loosening, mulching, etc.).
• Selection and cultivation of resistant varieties.
• The use of healthy planting material. For this, strong, healthy bushes are isolated in the summer, the root growth of which is used as planting material in the fall.
• A good predecessor for raspberries are legumes (beans, peas). A bad predecessor should be considered, strawberries, from vegetable crops- potatoes, tomatoes, eggplants.
• Raspberries can be returned to their old place only after 3-4 years.
• Disinfect raspberry roots before planting in a 1% solution of copper sulfate (100 g per 10 l of water) for 5 minutes, followed by rinsing in clean water or Fitosporin-M.
• Crowded plantings should be avoided, and raspberries should not be placed in lowlands or near water bodies.
• Immediately after fruiting, cut out biennial shoots, leaving no stumps.
• When forming a raspberry bush in autumn or early spring, remove all weakened, small annual shoots.
• Systematic struggle during the growing season with aphids - a carrier of pathogens of viral diseases.

Here you can see photos of raspberry diseases and ways to treat shrubs for diseases: To favorites

Raspberry belongs to the category of thorny shrubs that have powerful rhizomes and a large number of shoots. Cultivation of shrubs in one place should be carried out no more than 7 years. Otherwise, there is a decrease in fruit size and looseness of the root system of this plant.

In this article, we will look at the main diseases of raspberries, find out why leaves can dry on a bush or berries rot and how to deal with it.

Garden raspberries need to be provided optimal conditions growth. Otherwise, it will dry out. The reason for drying is improper care for it, which consists in insufficient watering, poor lighting, poor soil.

The reason for the drying of this plant are diseases of an infectious nature. Most often, drying is carried out as a result of the development of infectious diseases. The infection penetrates through mechanical damage. Drying of berries, leaves and shoots is observed as a result of the wilt virus, which belongs to the category of dangerous diseases.

The shrub often dries out as a result of vercillus wilt. This is a fungal disease that affects shrubs and other shrubs, as well as trees.

During the development of this disease, raspberry leaves quickly turn yellow, and the tops of the trunks dry out. When planting bushes next to zucchini, tomatoes, potatoes and eggplants, they may dry out. This is due to the fact that these plants are pathogens of mold fungi, which are detrimental to the plant.

Raspberries can get sick for various reasons. They do not consist in improper care of the shrub, but in diseases.

Why do remontant raspberries dry out leaves?

Drying of the leaves of the shrub is observed as a result of the development of diseases. Often it happens as a result of the development of root cancer. With its development, there is a loss of taste of berries. New shoots of the shrub are characterized by small size, the leaves become yellow. In the summer, they begin to fall off.

Infectious chlorosis or jaundice are common causes of yellowing of shrub leaves. This is an infectious disease. With the development of this disease, leaves often turn yellow on young shoots. The berries are characterized by a dry and unpleasant taste. The fight against the disease is to eliminate the affected shoots.

Gardeners also note yellowing of the leaves with non-infectious chlorosis, the cause of which is improper tillage and adverse climatic conditions. When a shrub is infected, a change in the color of its leaves is observed. On healthy shoots, the size of the foliage increases.

The main cause of yellowing of the leaves of the plant are diseases that can be both infectious and non-infectious.

Why do raspberries dry out?

Drying berries remontant raspberries can be observed as a result of diseases, for example, infectious contagious chlorosis. During the development of this disease, yellowing of the foliage is observed. By autumn, it acquires a normal color. This disease practically does not affect the level of yield. But the berries become dry and lose their taste. They have many seeds. The stems of diseased plants become thick and low.

The berries can dry out along with the tops of the plant as a result of the action of gall midges. With the development of this disease, cracks and swellings are observed on the shoots. If the shrub is grown in one place for more than 5 years, then as a result of this, a decrease in the size of the berries and their drying may be observed. If the shrub is affected by veticillium wilt, then the wilting of the plant is observed from the tops of the berries.

The drying of berries is affected by diseases that occur as a result of improper care of the shrub.

Drying berries on a bush

The main raspberry diseases and their symptoms

Both diseases and pests are dangerous for this plant. That is why it is necessary to start pest control and treat diseases in a timely manner.

White and purple spotting

White purple spotting belongs to the category of fungal diseases. The disease affects young growing shoots near the attachment of the leaves to the stems. Raspberry trunks are covered with white or brown spots to the black dot.

To combat the disease, you need to often dig and weed the soil, and mulch it. The plant can be treated with an insecticide. The ideal option to combat this disease is 0.3 percent karbofos. Can be sprayed with confidor.

Bacterial root cancer

Root cancer leads to a deterioration in the growth of raspberries and a loss of taste by the berries, and the foliage of the plant turns yellow. The fight against this disease is problematic, since the use of insecticides is prohibited. Bushes that are affected by root cancer are dug up and burned.

This eliminates the possibility of spreading the disease.

After digging up raspberries infected with root cancer, on a certain bed, its planting is not carried out for 8 years.

Fungal diseases of raspberries (anthracnose and gray rot)

Raspberries are susceptible to fungal infections such as gray mold and anthracnose. Symptoms of anthracnose are most often observed in conditions of high humidity growing shrubs. This fungal disease is manifested by spotting on the leaves, which has a brown color. The growth affected by the disease must be carefully cut and removed from the site.

With anthracnose, spraying is done using a Bordeaux mixture. You need to repeat the procedure every 10 days.

The occurrence of gray rot on raspberries is observed as a result of exposure to multicellular mycelium. The disease appears at the initial stage of berry ripening. The disease is initially manifested by the appearance of brown spots at the points of contact of the fruits. After a few days, the disease covers the entire fetus, resulting in necrosis.

To combat gray rot during the period of raspberry budding, chemical treatment is necessary. For this purpose, fungicides can be used in the form of Fundazol 50 SP, Rovral, Sumlex 50 SP, Ronilan, etc. From the application must be carried out in strict accordance with the instructions.

Raspberry mosaic

Mosaic is a common raspberry disease that can manifest itself in different ways, depending on the variety. It can manifest itself as a mosaic of leaves or their deformation. Affected bushes are characterized by weak growth of shoots.

The fight against the disease is carried out using insecticides - Hostation 40 KS, Marshall 25 KE, Croneton 50 E, Orten 75 SP.

Rust

Rust on raspberries is a fungal disease that causes dark spots on the underside of the leaves. As a result, the leaves of the plant dry up and fall off. With a strong neglect of the disease, brown spots appear on the stems.

When raspberry bushes are infected, they are destroyed. Spraying is carried out in spring and autumn. For this purpose, a solution of 1% Bordeaux mixture is used.

This disease is most commonly seen on older plants. The disease manifests itself as brown spots on the shoots. In the summer, there may be a sudden drying of the plant. In order to avoid the appearance of the disease, two-year-old shoots must be removed after harvest.

During the growing season, the shrub should be treated with a Bordeaux mixture. Before flowering, the plant must be treated with insecticides such as Topsin M70, Impact 12 SK, Alto 100 SL, etc.

Witch's broom on raspberries occurs as a result of exposure to phytoplasma. With the development of this disease, a large number of shoots are formed at the base of the shrubs.

The fight against this disease consists in the treatment of plants with insecticides and the planting of new healthy shoots.

Raspberry Witch's Broom

Raspberry pests and their control

Pests can cause irreparable harm to raspberries. They adversely affect not only the fruits of the plant, but also the stems, the root system.

That is why, when they occur, it is necessary to carry out a timely fight against them. For this purpose, in most cases, insecticides are used. In order to avoid the appearance of pests on raspberries, it is recommended to carry out preventive measures.

The weevil is a small black bug that damages raspberries with its long nose. To combat this pest, it is recommended to treat the bushes with an infusion of garlic. To eliminate the pest, a solution of potassium permanganate can be used.

Raspberries should be processed in the morning or evening. In order to avoid the appearance of a weevil, garlic or onions are planted between raspberries.

The raspberry beetle is brown in color and reaches a length of 4 centimeters. It damages the flowers and ovaries of raspberries. the raspberry beetle damages the shoots and leaves of the plant. During the budding period, beetle plants are harvested by hand. If there are larvae in the damaged berry, then they must be killed.

Gall midge is the main pest of raspberries. This is a black insect that grows up to 2.5 centimeters in length. The insect is characterized by the presence of transparent wings. Pests climb under the bark of the plant and hibernate there.

In order to avoid massive damage to the shrub in autumn and spring, damaged plants are burned.

The butterfly lays its eggs on the surface of the soil near the raspberry bushes. Its larvae damage the stems of the shrub. If a stem fly was found during the examination of raspberries, then the tops of the bushes should be immediately cut and burned. If there is a larval course in the stem, then the stem is cut closer to the root. In the autumn, you need to carry out a thorough loosening of the soil.

The raspberry stem fly is a small insect, the length of which is no more than 5 millimeters. It is characterized by a green color and the presence of transparent wings. The pest hibernates under raspberry bushes. Since May, flies have been laying eggs in the upper leaves.

Fly larvae penetrate the stem, which leads to the withering of the shoots. The fight is to eliminate damaged shoots. If this procedure is unsuccessful, then insecticides should be used.

Methods of treatment and prevention

With improper care, raspberries can be subject to a variety of diseases. pests have a negative impact on its growth and development. To ensure a rich harvest, it is necessary to carry out timely prevention of its pests and diseases. For this purpose, you need:

• Eliminate weeds;
• Carry out autumn digging of the soil;
• Remove old shoots;
• Carry out timely pruning of the plant;
• Treat the bushes with a Bordeaux mixture in autumn and spring.

When all of the above preventive measures are carried out, the gardener is guaranteed to eliminate the possibility of the appearance of pests and diseases on raspberries.

Raspberry is a useful shrub, the berries of which are used not only for food, but also for the treatment of diseases. Improper care leads to the appearance of pests and diseases on this plant.

In order to be able to eat raspberries, they must be controlled mechanically or using safe insecticides. In order to avoid the appearance of pests and diseases, it is necessary to carry out their prevention in a timely manner. Its implementation does not require the expenditure of effort and money.

In conclusion, we suggest watching a short video about raspberry diseases and pests, as well as ways to fight:

The presence of diseases on the raspberry bush greatly affects the quality and quantity of the crop. There are so many diseases that can affect your raspberries: rust, anthracnose, raspberry mosaic - and this is only a small part of a huge list. If you properly care for the plant, you can reduce the risk of ailments.

Care allows you to increase the immunity of raspberries, which will help it resist the effects of external factors. Some plant varieties are particularly susceptible to the influence of pathogenic microflora and will have to spend especially a lot of effort to protect them. In our article, we will talk about the most common types of raspberry disease and how to deal with them.

Diseases and treatment

What is the reason that raspberries are affected by pathogenic organisms? The answer is simple - poor-quality or improper care of shrubs. Any disease can begin to develop, even if you slightly neglected some of the rules of cultivation.

That is why your landings need special attention.

The right approach to business will give you the opportunity to notice ailments at the most early stages their growth. You will be able to deal with them faster, and it will take you a minimum of effort.

Raspberry diseases and their treatment can be completely different. Let's talk about the most common. They are found regularly due to the fact that the bushes do not have strong resistance to their pathogens.

Raspberry mosaic

This is a disease of garden raspberries of viral origin that cannot be treated. It affects the root system of the raspberry shoots, and spreads to the leaves, which turn into colors that look like mosaic patterns. To prevent the disease, it is necessary to process raspberries in the spring.

Curly

Curly raspberry is considered a disease of viral origin. Raspberry viral diseases are provoked by a pathogenic infection. In the presence of such a pathology, the leaves on the raspberry bushes become small, so-called wrinkles appear on them.

The leaf plate becomes very rigid, and the reverse side darkens and becomes brownish. The berries become dry and change their shape. They taste very sour, which is unacceptable. The death of the shrub will come after three years.

Unfortunately, it is impossible to cure the plant from this disease. The gardener can only prevent the development of infection through the elimination of sick individuals. In some cases, it is permissible before flowering, but this does not always lead to positive results.

rust

In some cases, the root cause that the bush begins to dry is a fungus. Mushrooms are provocateurs of rust formation. If the bush is infected with a fungus, then the lower part of the leaf is filled with dark spots. After a certain amount of time, the leaves fall off, and the stems become covered with brownish sores.

Rust cannot be cured. It is impossible to form an increased immunity to this disease. That is why only preventive measures can be used as therapy, they will only have a preventive effect.

purple spotting

Purple spotting is one of the most common types of the disease, it is called didimella. The disease manifests itself in the fact that the shoots begin to dry out. The disease begins its development in the following stages:

1. First, spots of light purple color appear on the young.
2. Over time, they become wider and more blurry. The edges acquire a dark brown color.
3. Black dots appear in the middle of each speck, they are called pycnidia.
4. After a certain amount of time, they generalize and become merged.
5. The surface of the leaves begins to crack, the shoots become brittle, which leads to the fact that the buds develop poorly.

Raspberry spotting spreads with high humidity, so if the summer is rainy, the risk of the disease increases several times. As a preventive measure, boric alcohol can be used.

Anthracnose berries

Fungal diseases of raspberries most often manifest themselves in the form of anthracnose. It is characterized by spots on the stems of the shrub. Their color is white, and the edges are bright and red.

Raspberry anthracnose or a fungus can spread very quickly, so over time it can be located not only on the stems, but also on other parts of the shrub:

• bark;
• leaves;
• fruit.

If we are talking about the bark, then this disease is characterized by black spots in the form of dots, while the leaves begin to fade.

If the shrub is exposed to the disease, then the number of leaves becomes noticeably smaller, which leads to the death of the crop. The plant becomes frost-resistant and eventually dies.

1. In order to prevent the occurrence of such an ailment, it is necessary to process raspberries with the help of Bordeaux liquid. This should be done before the buds open.
2. The second treatment occurs at the moment when the buds begin to form.
3. The third treatment is carried out at the time when the harvest has taken place and preparations are underway for wintering.

If the preventive measures have not brought any results, then it will be necessary to burn the entire bush. Note that the bush must be burned, and not thrown away - only such a measure will make it possible not to infect other plants in your area.

Important point! Very dense and heavy soil puts a lot of pressure on the root system. This leads to oxygen starvation of the system. Therefore, it is necessary to loosen the soil.

Witch's broom

The disease with such an interesting name is of viral origin. It is characterized by the fact that viruses affect plants and penetrate deep into wounds that are inflicted accidentally during horticultural work. The virus also penetrates through the bites of rodents and insects.

Therefore, the main reason for the occurrence of such a garden raspberry disease is the defeat of an open plant. After the onset of the disease, numerous shoots begin to appear on the shrub, on which there are no berries.

The number of leaves becomes noticeably smaller, and they themselves become a different size. As a result of the disease, fruiting stops completely.

Such a disease cannot be cured at all, therefore, there is a need for the implementation of preventive actions. In most cases, the plant is protected from the appearance of anthills, which attract a large number of aphids that damage the trunks and leaves. A number of methods have been invented for this:

After wintering, while the insects are still sleeping, it is necessary to fill the anthill with plenty of water.

It is a known fact that insects do not like strong aromas, so they can be repelled from your raspberries with kerosene. Its pungent smell repels ants and aphids.

In addition to folk prevention methods, you can use drugs chemical composition. You can buy them in specialized stores. If the plant has been damaged, then the lesion must be cut off and burned.

powdery mildew

This is one of the most dangerous types of ailments of fungal origin. Such a disease affects shrubs in early summer, especially if rainy and humid weather persists for a long time. Twigs and young growth, which were affected by the disease, are covered with a white coating, which is distinguished by a loose texture.

This leads to the fact that the leaves begin to dry out, and the crop changes for the worse. As soon as you find the first, the symptoms should be applied to the shoots with a liquid that helps in the fight against the fungus.

Gray rot

The second name for this disease is botrytis. The disease is also provoked by a fungal infection, first the fruits are affected, which are covered with black spots. Then these spots get bigger and bigger, eventually leading to fruit rot.

Further, the fungal infection spreads to the leg of the berries and moves to the stems, which turn into brown rings. The stems begin to dry out, the spots pass to the foliage and even affect the buds. As soon as you notice parts of the plant with similar symptoms, cut them off and burn them.

When spring comes, it is important to have time to treat your raspberries with Bordeaux liquid before the buds appear. Before wintering, make sure that not a single plant is infected.

Chlorosis

This disease is very easy to recognize, but it is impossible to cure. Chlorosis is characterized by the presence of yellow spots. At first they appear on the leaves, and over time they are transferred to the branches. Raspberry leaves become like foliage that has burned out under the sun.

The fruits are small in size, they lose all taste. When the autumn season comes, the symptoms are muffled. But do not rejoice in advance. After wintering, the disease can return with such force that the bush will simply die, and the neighboring raspberries will become infected and die by next spring.

All bushes that have been infected must be destroyed by burning. in place of former diseased plants is possible only ten years later.

Heat damage

This is a special type of disease that is not caused by bacteria and pests, but by elevated temperature.

The symptomatology of such an ailment is that at the moment when the fruits begin to ripen, they are damaged. The tissues become sluggish and look like boiled berries.

It's pretty easy to deal with this. It is necessary to plant raspberries in those places where there is a good blowing. It is important to prevent oxygen starvation of plants during hot periods. Some varieties of raspberries are particularly sensitive to temperature rise. Especially when it comes to repair raspberries.

Various pests

If you miss the moment, then there is a possibility that the crop cannot be saved. How to protect yourself from the appearance of pests:

1. Provide quality and proper care for raspberries.
2. Comply with all rules of agrotechnical measures.
3. Check plants for insects.

If you follow these elementary rules correctly and carefully, then you will be able to prevent the appearance of pests or get rid of them at the initial stages. You can fight insects using methods traditional medicine and with the help of chemicals.

Let's talk about the most common pests.

Aphid

Raspberries are an attractive location for shoot or leaf aphids. These pests can also spread to other plants in your garden. Settlements occur in the form of colonies. You will be able to find aphids at the tips of young shoots, under leaves and in inflorescences.

Aphids love plant sap and spread most infections. This is its danger to your raspberry.

Solutions such as Actellik and Cabrofos do well with aphids. They should be applied at the moment when the buds are just starting to bloom.

Ticks

You can fight them with the help of phosphamide and karbofos. And prevention is abundant watering.

gall midges

Such pests are also called raspberry mosquitoes. They lay their eggs in the cracks of the shoots. In these places there are strong swelling. This leads to the death of the stems. To fight gall midge, solutions such as karbofos and ambush are used.

crimson beetle

In order for pest control to begin, plants are watered with decis or karbofos.

Prevention

What can be done to reduce the risk of harmful insects and infections? To do this, you must follow some rules for processing raspberries like:

1. First of all, it is necessary to promptly remove all the foliage that has fallen. Although there are many methods to effectively eliminate pests, this does not always lead to good results. Especially if you start the course of business.
2. To protect your crop, you should regularly and carefully check plantings for the presence of pigmentation and beetles.
3. The basic rule is the timely processing of shoots in the presence of diseases and its symptoms.

spring processing

After the plants have overwintered, it is necessary to prepare them for the flowering season. To do this, you need to perform such work as:

1. Cut off dead stems.
2. Eliminate shoots that are damaged or grow incorrectly inward.
3. Eliminate all fallen leaves by burning.
4. Feed the soil with nitrogen substances.
5. Tie the shoots to the trellises.
6. Treat with prophylactic solutions from the onset of the disease.

As you can see, diseases appear quite often, since the plant is vulnerable. To prevent the onset of negative processes, shrubs should be carefully looked after and preventive measures should be taken regularly and in a timely manner. Now you know what raspberry diseases are and how to deal with them.