Berries

How to treat raspberries from pests during flowering and fruiting

Anonim

Almost every gardener plants a garden plot with useful and fragrant raspberries. There are times when raspberry bushes begin to bear fruit poorly due to insect attacks or diseases. In order for planted plants to get sick less often, you need to figure out in advance how to treat raspberries from pests during fruiting and flowering.

When you need to process raspberry for disease prevention

Before protecting shrubs from worms in berries and diseases, it is necessary to determine when it is best to treat. Experienced gardeners recommend processing a remontant bush in the spring, in the first half of April, when the first snow melts and the first buds begin to appear on the seedlings.In March, spraying is not done, as the daily temperature can drop below five degrees Celsius.

It is also possible to process plants in the fall, after the foliage has fallen. In early November, branches that have ceased to bear fruit are cut from shrubs and the most weakened shoots are removed. Only after preliminary pruning, preventive treatment is carried out.

Best Treatments and Treatments

To choose the most effective tool for working with raspberries, you need to figure out how best to spray it.

Store products

Quite often store chemicals are used to protect raspberry seedlings from diseases and insects. Effective drugs that can treat raspberry bushes include:

  • "Mikosan". It is used to increase the immunity of seedlings. The composition of the product contains components that help to quickly get rid of pathogens of fungal diseases.
  • He althy Garden. The drug is used to protect the berries from aphids, sawflies and other dangerous pests. The product is sodium based and sold as soluble granules.

Folk remedies

There are gardeners who prefer to save berries not with store-bought remedies, but with folk remedies.

Copper sulfate

Spring and summer are the right time to treat raspberries with a solution made from copper sulfate. Before spraying, you need to figure out how to make a vitriol solution yourself. For therapeutic and prophylactic purposes, a slightly concentrated mixture is used. To prepare it, 150 grams of the substance is added to 8-9 liters of warm water. Then everything is stirred for 5-10 minutes and infused for half an hour.

It is necessary to spray seedlings with vitriol in protective gloves and goggles so that droplets of the product do not fall on the body. You also need to make sure that there are no small children and animals nearby.

Iron vitriol

During flowering and when fruiting begins, you can use iron sulfate. It is used for the following purposes:

  • saturation of the soil with iron;
  • treatment of wounds that may be on the surface of branches;
  • strengthening old raspberry bushes;
  • prevention of the development of fungal pathologies;
  • insect protection.

When creating a working solution, half a kilogram of a substance is added to a ten-liter container with water. The prepared product is used no more than twice a season. Raspberries are processed in the evening or morning, when there is no sun.

Boiling water

Another common prevention method is the use of hot water. Boiling water is used in the following cases:

  • eliminate the bud mite and protect seedlings from this dangerous parasite;
  • cleaning seedlings from spores that may cause powdery mildew;
  • increasing the number of flower stalks, which allows you to increase the yield;
  • eliminate aphids that often attack raspberry bushes.

Before spraying a raspberry bush, it is necessary to protect its root system from boiling water. To do this, the surface of the soil is covered with polyethylene, which will prevent hot water from entering the soil.

Urea

Some gardeners prefer to protect shrubs with urea. When working with urea, the following recommendations are followed:

  • Pre-preparation. Before processing, the soil is loosened near each bush and weeds are removed.
  • Choosing a day for work. A garden raspberry bush is treated with urea on sunny and calm days.
  • Compliance with safety rules. It is necessary to work with the solution in rubber gloves, goggles and a mask.
  • Preparation of the mixture. 750 grams of urea and 50 grams of copper sulfate are added to a bucket of water.

Raspberry shoots are watered with urea 3-4 times per season.

Bordeaux liquid

Most often this tool is used when biological products are not able to protect the bush. Autumn is considered the best time to apply Bordeaux liquid. During this period, the bushes completely complete the growing season, and therefore the product will not be able to harm the plants.

To make your own remedy, add half a kilogram of lime to three liters of water. After that, two more liters of warm water are poured into the container. Then 40 grams of copper sulphate are added to 10 liters of boiling water, after which the mixtures from two containers are mixed and infused for 20-30 hours.

Mustard and soda

To cure raspberry diseases, you can use a mixture made from soda and mustard. This is a universal mixture that can destroy chlorosis, as well as protect seedlings from rotting and anthracnose. Some use it to increase the amount of sugar in berries and improve their taste.

When creating an effective remedy against raspberry diseases, 80 grams of soda and 20 grams of mustard powder are added to 5-6 liters of heated water. You can use the liquid after flowering is completed.

Ammonia

Some people think that ammonia sleeps only in medicine, but this is not so. It is used in horticulture as a fertilizer and helps fight common diseases. Also, using solutions of ammonia, you can protect seedlings from such insects:

  • ants;
  • flower midges;
  • Medvedka;
  • aphid.

A large amount of alcohol can harm the plant and therefore the dosage must be observed when creating the solution. 50-60 milliliters of alcohol with grated laundry soap are added to a bucket of cold water. To prevent pests from appearing on the bushes, spraying is done 1-2 times a month.

Tar

To repel insects, tar is often used, which has a pungent odor. Shrubs are processed twice - before and after flowering. When creating a product, 2-3 spoons of tar are added to 10-15 liters of water.

Raspberry diseases and ways to deal with them: timing and technology for processing bushes

If you take care of the bushes poorly, they start to get sick and die. It is recommended that you familiarize yourself with the characteristics of common raspberry diseases and their treatment methods.

How to treat raspberries from late blight (root rot)

The main cause of root rot in shrubs is a high level of soil moisture. The main symptoms of late blight include black plaque on the pistils, mold and yellowing of the foliage. Also, in diseased bushes, flowers are deformed and dry.

To fight the disease, use a garlic solution with manganese. It is prepared from 8-10 liters of warm water, two grated heads of garlic and 5 grams of manganese. For each diseased shrub, half a liter of liquid is spent.

Root cancer

The disease appears due to the ingress of bacteria into the root system of a raspberry seedling. The disease is accompanied by growths on the root collars and the lower part of the stem. The leaf plate is covered with yellow spots, which darken over time. Root cancer develops very quickly and therefore, when these symptoms appear, treatment should be started.

To combat the disease, they use a one percent solution of copper sulfate, which destroys the pathogens of root cancer.

Root rot (late blight)

Phytophthora is a dangerous disease caused by a fungus that develops in conditions of high humidity. Each leaf of a diseased seedling begins to turn red and dry around the edges. If you do not treat late blight, the shoots dry out completely. There are several remedies for root rot:

  • Chalk. 10 grams of chalk is mixed with 400 milliliters of water and 5 grams of copper sulfate. The affected stems and leaves are treated with a solution.
  • Iodine. The substance is diluted with water in a ratio of one to five. Shrubs are sprayed with iodine mixture 2-3 times a week.

Grey Rot

Gray rot on raspberries leads to poor fruiting and death of berries.The fruit of infected bushes is covered with a bloom that has a brown color. Most often, gray rot appears on shrubs that are grown in waterlogged greenhouses. Also, the disease develops if the plant is grown near infected seedlings.

To save plants, experienced gardeners recommend getting rid of all infected berries and cutting stems that are starting to wither.

Verticillium wilt

July is the month when raspberry bushes start to get sick with verticillium wilt. The danger of the disease lies in the fact that it leads to a slowdown in fruiting and stops the development of the bush. First, a yellow coating appears on the leaves and stems, after which the shoots begin to wither.

It is impossible to cure the disease and therefore everything must be done so that raspberries do not get sick with verticillium wilt. To do this, the bushes are regularly sprayed with fungicides and urea.

Chlorosis

The development of chlorosis on raspberry bushes is evidenced by yellow spotting on the leaf plate. This viral disease is very dangerous, as it is not easy to get rid of it. Chlorosis leads to slower ripening of the crop and drying of the berries.

To protect the berries from the disease, the bushes are treated with a sulfate solution. Raspberries are processed in mid-March, when the first buds appear on the seedlings. You can also use a methyl emulsion, which is sprayed on raspberries two weeks before flowering.

Rust

Rust begins to develop in the last decade of May, when flowering ends. It is quite simple to identify the disease in time, since it has pronounced signs. The leaves of bushes infected with rust are covered with an orange bloom, which will become convex over time. A darker coating appears on the reverse side of the leaf plate.

Means that treat rust include:

  • wormwood. Fresh grass is poured with cold water and infused for 3-4 days. The liquid is then filtered and used to process raspberries.
  • Soda. Five spoons of the substance are mixed in 7-8 liters of water, after which the raspberry leaves are sprayed.

Infectious Chlorosis

If there are yellow spots on raspberry leaves, it is highly likely that she has become ill with infectious chlorosis. At first, yellowing appears near the veins, but gradually the surface of the leaves covers one large yellow spot.

To eliminate chlorosis, peat, compost and humus are added to the soil. Raspberries are also fed with potassium compounds that will help get rid of the symptoms of the disease.

Mosaic

Mosaic appears on the bushes after the attack of aphids, which is considered the main carrier of viral pathogens.A characteristic feature of the disease is green and yellow spots on the leaves. If the mosaic is not treated for a long time, convex growths will appear on the surface of the leaf plates. Infected shrubs should be watered with Kemifos and Fufanon.

Curly

When curly develops, the trunk of shrubs darkens, and raspberry shoots shorten and bend at the edge. If the disease appeared in the fall, all the leaves acquire a bronze hue and begin to die off. If you do not treat curliness, the bushes will stop growing. In the treatment of the disease, fungicides and copper sulfate are used.

Anthracnose

Anthracnose is a dangerous disease in which a red coating with a brownish tint appears on the surface of the foliage. The disease appears due to a lack of organic supplements and the use of infected tools.

To quickly get rid of fungal pathology, cut diseased stems of shrubs and add potash and phosphorus fertilizers to the soil.

Septoria (white spotting)

Due to septoria, specks appear on the surface of raspberry leaves, which are painted white with a brown border. Gradually, spotting moves from leaves to the main stem and shoots.

Infected bushes need the right care, without which they will die. Diseased leaves are carefully removed from the shrubs, after which the raspberries are sprayed with fungicides.

Didimellez (didimella)

Didimella is a common disease that affects not only raspberries, but also other berries. At the initial stage of the development of the disease, leaves with stems are covered with purple spots. Over time, the spotting darkens, hardens and cracks. When didimella appears on raspberry bushes, the following control measures are used:

  • biologicals;
  • Bordeaux liquid;
  • iron or copper sulfate.

How to treat raspberries from pests

To protect raspberry bushes from insects, you need to decide how to spray them during cultivation.

Raspberry beetle

The main reason for the appearance of wormy raspberries is the raspberry beetle, which attacks the bushes. The insect is activated in the second half of spring, when early berries begin to form. The pest feeds on leaves and fruits.

Because the bug infects the fruit, it should not be sprayed with chemicals. The only thing you can do with it is collect it manually.

Stem gall midge

Rot on young berries may appear due to the attack of stem gall midges. Adult individuals lay eggs on leaves, from which caterpillars then appear. Young gall midge bites into raspberry stalks and eats them from the inside.

Stems infested with pests will have to be completely cut out and burned.

Stem fly

The most dangerous pest for raspberry bushes are stem fly larvae. They, like gall midges, penetrate the shoots and feed on plant sap. Because of this, the leaves and stems of raspberries turn red, and a gray coating appears on the berries.

To prevent the fly larvae from spreading throughout the plant, the affected shoots are cut out, after which wood ash with vitriol is added to the soil.

Raspberry mite

It is difficult to notice this insect in time, as its length rarely reaches one millimeter. You can detect raspberry mites only when they have covered the entire bush. Manual collection of insects will not help get rid of ticks and therefore you will have to use preparations for spraying raspberry seedlings. Effective remedies include Nystatin and Trichopol.

Spider mite

If there are cobwebs on the raspberry stems, it means that a spider mite attacked the raspberry bush.Also, the appearance of a tick is evidenced by an oily coating located on the back of the leaves. Most often, the tick bug appears in May, so the preventive treatment of berries is carried out in April. They are sprayed with urea, vitriol and fungicides.

Raspberry-strawberry weevil or flower beetle

This is a small caterpillar that feeds on young leaves and lays eggs on them. The insect becomes active during the flowering period and penetrates the flower buds to eat them from the inside. The main preventive measure for the appearance of weevils is regular inspection of leaves and removal of delayed larvae.

Kidney moth

If a brown butterfly flies near the bushes, it means that a bud moth attacked the plant. Adults do not harm raspberry seedlings, since the main damage is caused by their larvae. They penetrate the young stems and buds of seedlings to suck the juice out of them.This leads to a slowdown in the further development of shoots.

Leaflet

Leafworms lay their larvae on the inside of raspberry leaves. Young individuals feed on the juice of the leaves and penetrate the fruits, due to which the crop becomes rotten and wormy. The leaf roller attacks plants from the end of May to the first half of September.

To eliminate pests, an effective folk method is used - wormwood decoction with the addition of tomato tops and tobacco.

Raspberry Moth

Raspberry moth gets into the shoots of shrubs, because of which their growth stops and growth develops. Also, moth larvae can penetrate ripe berries and ruin them. All drying stems that are affected by insects are cut out and burned.

Cicada

This is a small pest that attacks raspberries and vegetables.You can find leafhoppers on raspberry bushes by light spotting on the surface of the sheets. Many people think that such insects cannot harm raspberries, but this is not so. If you do not get rid of them in time, the bush will dry out. Fungicides, as well as an infusion of garlic and wormwood, will help get rid of leafhoppers.

Raspberry glass jar

This is a yellowish butterfly that lays larvae on the foliage of raspberry seedlings that suck the juice from the bushes. Most often, the glasswort lays its eggs at the bottom of the stems so that the larvae can penetrate to the roots. Shoots infected with a glass case cease to bear fruit and develop. A white powdery coating appears on them, which rots over time.

Conclusion

People who grow raspberry bushes often face pests and diseases that reduce yields. To protect plants, it is recommended that you familiarize yourself with the main products that are used to process raspberries.