Diseases and pests of barberry: how to get rid of and what to do, methods of dealing with them

Barberry shrub is planted for landscaping the territory, forming natural green barriers and decorating alpine slides. In addition, the fruits of the shrub are attractive, which remain so throughout the winter. Despite the efforts of the gardener and preventive measures, the bushes are affected by diseases, they are overcome by various harmful insects. Symptoms of barberry diseases are different: deformation of the bark, violation of the structure of the stem, leaf blades and sprouts.

Basic barberry diseases and treatments

Barberry plants are considered relatively disease resistant. Diseases that affect plants are cancerous or fungal in nature. With the appropriate treatment measures, the plant is restored.

Leaf rust

A fungus that develops due to a decrease in the protective functions of the plant provokes the development of the disease. If the bush does not receive the necessary useful elements, it weakens. Damage symptoms:

• orange-brown spots on leaf blades, shoots;
• on the lower surface of the leaf plate, whitish and rounded myceliums are visible.

You can get rid of it by spraying with sulfur-containing drugs. Bordeaux liquid is ideal. All foliage affected by the disease should be burned.

Leaf spot

The lesion is characterized by the appearance of white (with a grayish tinge), brown, brownish and black spots. Each genus of spotting produces a different parasite. Poor-quality processing or not carried out on time leads to the death of the bush.

What to do if you find such signs? Effectively cope with chemicals and biological fungicides. Fruiting shrubs need more loyal means, spraying with which is carried out a couple of weeks before picking berries.

Powdery mildew

Provokes disease fungus. When the leaves are covered with white bloom, it begins to dry out the plant. With a strong defeat, the foliage twists, becomes covered with a web of cobwebs.

For the treatment of shrubs, it is necessary to use complex measures:

• treatment with a solution of soda ash with soap;
• in case of severe damage, treat with a manganese solution;
• leaf needs to be burned;
• treat the bush until flowers appear with the chemical agent Vectra, Skor, colloidal gray.

In case of severe damage, treat with Fitosporin. Also, for preventive purposes, you can spray every season.

Cortical necrosis

The defeat is characterized by the death of sprouts, the formation of tubercles with spores that appear in the cracked bark. For treatment, cut off all diseased branches 15-17 cm further than the area of \u200b\u200bdisease spread, burn. Spray the remaining branches with copper sulphate, and smear the places of cuts with garden pitch.

Drying of stems

As a result of the disease, fungal pathogens affect the bark. Characteristic symptoms:

• dries bark and crown;
• branches are dying.

Further spread can be stopped by cutting off diseased branches, spraying with a chemical or biological preparation.

Bacterioses

The pseudomonas bacterium provokes the development of a disease related to cancer. Characteristic symptoms:

• water spots on the crown, sprouts, cuttings;
• cracking of the bark, cancers;
• leaves are dying off quickly;
• branches swell and brownish streaks form.

To fight the disease, the affected branches are cut off, burned, the shrubs are treated with a chemical agent.

Cancer

Cancerous lesions appear as:

• cones on branches;
• cracks;
• rot.

Cancerous growths are cleaned, treated with copper sulphate, chemicals (Fundazol, Bayleton). When the lower part of the plant is affected, it cannot be saved.

Barberry withering

With such a disease, the leaves and individual shoots wither, and on one side of the bush.The leaves of the whole plant gradually wither and curl. On sections, darkened rings of vessels are visible. The causative agent is a fungus from the genus Fusarium. Infection from the soil gets to the roots, decay occurs, the plant dries up.

Pests and how to protect the plant from them

Wither, die plant can not only be affected by the disease, it is often overcome by harmful insects. Vigilant examination, preventive measures will help to avoid such problems. The extermination of insects must be carried out at the initial stage, otherwise the shrub will be lost.

Caterpillars

Caterpillars of moths, currant moths, moths, barberry sawfly, scoop eat barberry foliage, so it begins to fade, takes on a twisted appearance and dries up.

The fight against them is carried out with the help of chemical and biological products.Why is it important to spray fruit-bearing bushes at least 20 days before harvesting? The concentration of harmful substances in the fruits of barberry decreases. Among folk methods, fumigation, spraying with a decoction of chamomile, bitter wormwood are popular. It is important for sanitation to prune foliage.

Aphids on barberry

Aphids, mealybugs, scale insects cause enormous damage to the plant. Insects suck out the juices of the bush, which leads to wilting and drying. An effective method of control is spraying with products containing sulfur. In tandem, it is recommended to use folk methods: infusion of garlic, horse sorrel, potato tubers, dandelion, tobacco.

Tick

The tick produces swellings on the branches, deforming sprouts and leaf plates. To exterminate the insect, it is treated with anti-tick agents. You can fix the result with infusion of cyclamen tubers, medical alcohol.

Prevention measures

Prevention measures will help avoid damage to the bush by diseases and pests.

These include:

• buying, planting quality, he althy plants;
• nourish the shrub, apply the necessary fertilizers;
• correct watering;
• creating the necessary conditions to strengthen the plant;
• thoroughly systematically inspect the plant;
• make sanitary pruning, removing dry branches;
• fallen leaves, where pathogens overwinter, burn;
• prophylactic spraying of shrubs during the growing season.

Rating of the best folk and store funds

Today, the chemical industry offers a wide range of biological products that are safe for humans and animals. Some of them can process barberry until harvest. These include:

1. Fitoverm is an insecticide used to kill insects: aphids, whiteflies, and other pests. Used when they appear and again after 2 weeks.
2. "Boverin" - an insecticidal biological product against insects, a shelf life of 2 months, after which it is not suitable for use.
3. "Aktofit" - a means for the destruction of insects on agricultural and ornamental plants. Apply as pest infestation is detected.
4. "Bicol" - used to kill insects, effective against 80 types of pests.
5. "Phyto-Doctor" is a biological fungicide designed to control harmful insects.
6. "Mikosan" - used to protect against fungi, viruses, bacteria. It has a natural origin, it is allowed to use during fruiting, it is safe for people, animals, birds, bees, enhances the plant's immunity.
7. "Fitosporin" - a microbiological preparation, effective in fungal, bacterial diseases on any crops: flowers in the house, in the garden on trees, shrubs. It is applied at any time of vegetation, flowering or fruiting.
8. "Bactofit" is a biological preparation that effectively copes with fungal, bacterial infections of vegetable, grain, flower and ornamental plants. The treatment does not develop resistance in pathogenic bacteria, so it is allowed to repeat the treatment until the result is obtained.
9. "Alirin" - a biological fungicide for the elimination of fungal diseases in the soil, on plants, close in composition and action to "Fitosporin". The product reduces the toxicity of the soil after the use of chemicals, restores the microflora, does not cause addiction in pathogens, and produces an immunomodulatory effect.
10. Bordeaux liquid is a chemical preparation that has proven itself in the fight against various fungal diseases. With a correctly calculated dosage, the drug will not harm the plant, people and animals, while effectively eliminating the fungus.

Some gardeners share advice on how to spray using folk safe remedies:

• decoction of tobacco: 450 g of shag pour 10 liters of boiling liquid, insist;
• potato broth: boil 2 kg of potato peels, dilute in 10 liters of liquid;
• garlic broth: 650 g of garlic per 10 liters of boiling liquid.

If grated soap is added to the solution, the effect is enhanced.

Timing and processing scheme

Spraying is done with Vectra, Scor, Cumulus preparations before and after the flowering process. With a strong development of the disease - in the fall, when the crop is harvested.

The optimal time for spring treatment with a mixture of urea and copper sulfate is when the average air temperature is positive, and the buds are already swollen, but have not released leaves.If the foliage has just appeared, you can also spray it, later it will be useless. In addition to pest control, nitrogen is fed. The plant enters the vegetative process faster, the flowering period is shifted.

Pest elimination is carried out as they appear and again for prevention after 2 weeks.

It is impossible to say exactly by months, since they depend on the climatic features of the region, the weather conditions of a particular year.

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