Anyone who grows berry crops on their plots necessarily allocate space for raspberries. Both children and adults love raspberries. Grow it easy, care consists of the usual methods for the gardener. But if this berry did not hurt, then the cottagers would be much easier. In addition to competent compliance with the requirements of agricultural engineering, you need to know which diseases and pests of raspberries are most common in the region. Protection of raspberries from pests and diseases is an important step in the cultivation of berries. We consider in the article two topics:
- What are the signs to distinguish raspberry diseases and how to cope with them.
- What are the pests of raspberries and the fight against them.
It is very important to notice any injuries and illnesses in time so that the raspberries will delight you with a high yield.
Types of garden berry diseases
Consider raspberry diseases and their treatment. The main types of diseases that raspberries undergo are infections of viral origin and fungal infections. Simply they can be called viral and fungal diseases of the garden raspberry. Many varieties are susceptible to these diseases, although in modern catalogs there are species that are fairly resistant to diseases. But, completely immune yet does not exist. To protect planting from disease, you must:
- have a description of each ailment with photos;
- know how they are treated;
- learn what preventive measures exist.
Let us dwell on each type of diseases that the garden raspberry is prone to. Consider the common raspberry diseases, a photo of their symptoms and how to treat each disease.
Diseases of fungal origin
These types of diseases can be classified as raspberry berries. It is the berries that are more affected by fungal infections. Fungal diseases of raspberries are found in plantings very often. Therefore, the description of their signs and control measures should be familiar to every gardener.
Gray rot (botrytis)
The most common disease. Small gray spots appear on the fruits, which increase and affect the whole berry. It begins to rot, is covered with a bloom of gray, which contains spores of the fungus. Disputes spread with moisture and air, capable of hitting the whole raspberries. A surge of disease is noticed in a period of fairly cool days with high humidity.
The disease affects not only berries, but also leaves with shoots. Infected plants do not tolerate winter and die.Important! Gray rot in raspberries very quickly spreads. We need to act immediately.
Measures to combat the disease:
- bushes with signs of disease are removed and burned;
- correctly treat plants with preparations for protection;
- restore agricultural technology, if there were violations.
To say in more detail - do not handle the raspberry planting just in case, and it is important to follow the berry planting pattern. All drugs that help fight the disease must be applied before the berries ripen. If an overdose of chemicals occurs, raspberries will be weakened and will not be able to withstand possible problems. In addition:
- Plant thickening leads to the rapid development and spread of gray rot, so planting is always thinned. This makes it possible to provide good ventilation and protection from the disease.
- Sick bushes are removed and burned; in spring, crimson plantations are well cleaned of residual foliage and debris, and then treated with Bordeaux mixture.
The second fungal disease, bringing summer residents excitement. In addition to the berries, the disease still affects the stems and leaves.
Manifested by single spots on raspberry stalks. The hue of the spots is grayish-white, and at the edges is a purple border. In the places of the appearance of spots, the drying of the fabric occurs. Subsequently, the spots merge to form ulcerative lesions. The bark peels off the stems, and the leaves fold and dry.
The main forces must be directed to:
- removal of diseased plants;
- spraying preparations containing copper in its composition;
- reduction of planting density;
- ensuring good ventilation.
Treat raspberries from the disease will have at least three times per season. Be sure to follow the planting during the rainy season and high humidity. Such weather favors the spread of anthracnose.
White and purple spotting
Often found fungal diseases of raspberry. When the disease affects the leaves and stems. White spotting is manifested by brown spots, which gradually turn white, with black dots visible in them. When purple spots have a reddish tint. The main measures to combat the disease:
- plant only healthy material;
- thin out the landing;
- process drugs containing copper;
- remove affected bushes.
When the disease affects the stems and leaves of raspberry. On them appear yellow growths that cause brittleness and shrinkage of the stem, wilting of the foliage. In the spring, spores appear on the leaves; in summer, orange and dark pillows of the fungus are visible on the underside of the leaves. They calmly endure winter on the leaves that have flown around. Therefore, it is necessary to carefully remove the remnants of foliage from areas where raspberries are grown. In the wet period, the development of the disease continues until late autumn. Control measures - collect and burn the leaves, dig deep between the rows, sprinkle the raspberry three times with Bordeaux mixture (1%).
Viral diseases of raspberry bushes
Another group of diseases that raspberries suffer from. It is very difficult to treat raspberry viral diseases, so every gardener should know what preventive measures to take. They affect the root system, the stems, the leaves of the bush and lead to the death of the plant. These include:
When illness leaves become hard, curl into a tube, change color. First turn brown, then dry. The same result on the berries. They are deformed, become acidic. The plant does not cure, dies in 2-3 years. Especially carefully you need to follow when buying planting material. Otherwise, you can bring the disease in planting and lose your favorite variety. Diseased plants destroy.
The main symptom is on the leaves. On them are visible areas of irregular shape, which by the end of the summer become speckled. Leaves shrink, shoots weaken, their growth slows down. Berries become lumpy, become unsuitable for consumption. Raspberry does not die, but it is completely impossible to cure the disease. Carriers of the disease is aphid.
Raspberry or "witch's broom"
So called mycoplasmal crimson disease. On the bushes produces a lot of non-bearing shoots. They are small, but the number can reach up to 200 pieces on one bush.
It is transferred to other bushes very quickly, therefore the detected problem is immediately removed.Important! Carefully select planting material and destroy pests - insects.
The disease is transferred to the site by cicadas and cannot be treated.
Bacterial problems in raspberry
Pathogenic microorganisms, which include bacteria, cause culture diseases. There are diseases that are widespread. Regardless of the region in which raspberries are grown, it can be affected by cancer.
Stem and root cancer
The main symptom of infection is the appearance of small tumors (overgrown seals) on the roots. Gradually, they merge and form a common bumpy surface, with a rough crust. If such tumors infect the stems, then when they grow together, they tear apart the bark. Shrubs affected by this disease become weakened, do not tolerate the cold winter and die.
Pests for planting raspberries on summer cottages
In addition to various diseases, raspberries are attacked by parasites and pests. What to handle planting to protect raspberries from defeat? How to deal with pests that have already appeared? These questions constantly worry summer residents. Consider the main pests and parasites of crimson plantations, annoying gardeners. Better to get acquainted with the pests of raspberries in pictures, to know what they look like. The most unpleasant thing is that besides the harm brought by the parasites themselves, they are also carriers of many raspberry diseases.
The pest winters in the soil at a depth of 10 cm, and when the soil warms up to 10-12 ° it comes to the surface. Until the appearance of buds on raspberries, the beetle feeds on the nectar of other plants. Then the pest moves to the crimson bushes and begins to feed on the contents of the buds. As soon as the raspberry begins to bloom, the female raspberry beetle lays eggs and then the larvae continue their destructive work. When harvesting, the pest again goes to the ground for the winter. The beetle damages the buds, and the larvae - the berry. What methods of struggle do gardeners use against the pest? Firstly, the autumn digging of the soil in order to destroy the larvae of the crimson beetle. Secondly - the collection of beetles shaking off the buds. Thirdly, the treatment of raspberries from pests in the phase of bud formation. In this case, karbofos well helps. At the time of picking berries gardeners cover the capacity of the canvas or waterproof paper. The larvae crawled out of the berries are immediately destroyed.
Raspberry fly stem
The pest larvae hibernate under the bushes at a depth of 5 cm. After the earth warms up, they pupate, then flies appear. The harm from insects - pests is that they lay eggs in the leaf axils and on the tops of the crimson shoots. Pest larvae feed on the core of the shoots, damaging the stems from the inside. Before the flowering of the raspberry begins, they gnaw through the stems and again go to the ground. To fight the pest, digging up the soil is used in the fall, before the raspberry blossoms, cut out the bushes and destroy them. Spraying karbofos during the summer of flies.
Stem raspberry gallitsa
Very familiar gardeners middle and southern Russia. A small insect (up to 2 mm) has transparent wings and a brown back.
Gall midge larvae cause the main damage to raspberry stalks. On the middle and lower shoots characteristic swellings appear, which are called galls.
Larvae of the pest overwinter in them. In the spring, they feed on the contents of the stems, and in the raspberry flowering phase, an adult insect appears and lays eggs on young shoots. A month later, they show swellings - the habitat of pest larvae. Above the formation, the shoots dry out, then break off. On the galls themselves, the peel cracks and falls behind. If you do not take any measures, the tiny Gall midge is capable of destroying up to 70% of the landings of raspberries. How to stop a pest? First, in spring and autumn, thoroughly clean the planting from damaged stems. They must be cut and burned.Important! Cut the stem below the bulge 3 cm, but not to the ground.
On the rest of the raspberry can give a new crop. Treatments from the pest are carried out with Actellic, Fufanon, Alatar, and Iskra-M chemicals. Spraying time - laying eggs in gall midges and the summer period of adult insects. The selected drugs must alternate to achieve the desired result.
Damage from this pest is similar to galls, only different in size. The galls on the stems are about 3 cm long, and after the introduction of the larvae of the walnut crop, swellings of 10 cm in length appear. However, the pest control measures are identical to the above.
Raspberry raspberry aphid
Familiar pest gardeners of all regions. It hurts a lot if the raspberry pan is located in a shaded place. It settles on the inflorescences, the ends of the shoots, the pest forms entire colonies. As a result of pest damage, leaves curl, twist and shoots grow poorly, flowers dry. Very small insect, but bringing great harm. In addition to damage to the shoots, it is a carrier of viral diseases of raspberries. Dangerous aphid in dry years. Fight against the pest is necessary with the help of chemicals listed in the section on gall midges.
What other pests can be found on raspberry plantings? Planting raspberries are damaged by the weevil,
raspberry glass bowl
Weevil is handled well by the same drugs that are used against gall midges. And the glass case does not tolerate low cutting of the shoots and burning of damaged stems. Iskra-M, Aktelik or Fufanon are used against common ticks for common raspberry varieties.
Repairmen process "Gray garden, colloid" or "Tiovit-Jett."
Pests, raspberry diseases and the fight against them are an important part of berry care. Without timely activities, you can lose the harvest and lose your favorite varieties. Fighting with them is carried out throughout the season - from spring to autumn. Be sure to process the bushes in early spring for the purpose of prevention and do not forget to inspect them regularly.
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