Diseases and pests of apricot: how to recognize and fight?

Apricot grows quickly, is easily restored after pruning and damage to branches, undemanding to soils, beautifully blooms, exudes a honey aroma and early fruiting. And everything would be fine if it were not for the diseases and pests of apricots.

The main condition for successful pest and disease control is careful and timely tree care. Consider: spring spraying is carried out only after sanitary pruning and stripping of the affected boles, but before the slices are smeared over.

Apricot Diseases

Apricot most often affects fungal diseases, especially if it often rains in spring and summer. High humidity accelerates the development of klyasterosporiosis, moniliosis, verticilliasis, etc. To avoid this, cut, whiten and spray trees with fungicides every year. In the autumn, do not forget to timely remove and burn fallen leaves.

Bone cytosporosis

On the bark of the tree appear numerous small tubercles gray-brown color. This is fungi. The leaves gradually fade, the affected branches dry up, the tree dies.

Control measures

Remove dry branches in a timely manner so that the disease does not extend to healthy shoots. To treat the disease at an early stage and as a preventive measure, each year in spring, spray trees with a 1% Bordeaux mixture or another copper-containing preparation.

Only wild apricots (zherdeli) do not suffer from cytosporosis.

Bacterial necrosis, or cancer (burn), stone fruit

Bacterial cancer affects all organs and tissues of the tree. Forms of manifestation may be different. Most often in the spring, the plant is covered with burns, over time, ulcers form from their place, from which gum flows. The bark becomes brown, the tree gradually dies off. From stoneplant, bacterial necrosis can spread to lilac and pome crops.

 

Control measures

At the first signs of illness, cut the affected branches to a healthy tissue and burn them. Disinfect the slices with 1% copper sulfate solution and coat with garden pitch. As a preventive measure, spray trees with 1% Bordeaux liquid - in spring and summer and 3% Bordeaux liquid - in autumn during the fall of the leaves.

Remove gum in a timely manner. Sprinkle the soil in the place where the affected trees used to grow, sprinkle with bleach (200 g per 1 sq. M) and dig. Grow more disease resistant varieties.

Apricot varieties are relatively resistant to stone cancer, such as Pineapple Tsyurupinsky, Hungarian best, Hardy, Komsomolets, Red-cheeked, Nikitsky, Parnas, Chindahlan.

Apricot monilial burn

Cold and wet weather contributes to the spread of the disease. Most often, apricots become infected with moniliasis during flowering. Leaves and young shoots turn brown and dry. If the tree could still bind fruit, a monilial burn becomes the cause of fruit rot.

Control measures

Collect and destroy dried fruit in a timely manner. During the swelling of the buds, spray the trees with a 3% Bordeaux mixture. If the plant shows signs of disease, treat the crown with Topsin-M, Strobe or Topaz (according to the instructions) with the addition of soap into the solution.

Brown leaf spot, or phyllostiktosis, apricot

Round brown spots with a narrow dark border indicate brown leaf spot. Over time, holes are formed on the spot, the leaves gradually dry out and fall prematurely.

Control measures

At the time of bud break, spray the trees with a 3% Bordeaux mixture. Break off affected leaves and burn them.

Holey spotting, or congestion, stone fruit

First of all, the disease appears on the leaves and fruits in the form of small red-brown spots. After 1-2 weeks in place of spots on the sheet plate holes are formed. Fruits are gradually deformed. With a strong defeat, the branches of the plant become covered with red-purple spots, which eventually turn into ulcers with gum.

Control measures

Cut and burn all affected parts of the tree in a timely manner. Treat wounds and cracks with bluestone and cover with garden pitch. In autumn and early spring (during bud break), spray trees with a 3% Bordeaux mixture. During the appearance of buds, use drugs Chorus or Mikosan. Do not forget to apply complex fertilizer to the soil of pristvolny circles.

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Apricot gamble

Gum, appearing on the trunk and branches, is a symptom of a disease or a signal that the tree grows in unsuitable climatic conditions.

Control measures

Carefully remove the gum, peel off the damaged area, cut off the dead tissue (brown) to live wood. Treat the cut sections with a 1% solution of copper sulfate, then cover with garden pitch.

Apricot Pests

Apricots love to eat the same insects that attack plum and peach.

Aphid

These small insects are especially numerous in the first half of summer. They settle on the back of the leaves and suck the juice out of them. As a result of this, the leaf plates curl and gradually dry out. Due to lack of nutrition shoots are deformed.

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Moth

Butterfly caterpillars that appear at the end of summer cause great damage. In the fall, they actively eat the fruits, after which they spend the winter on the ground near tree trunks or under the bark on the lower part of the trunk.

Sheet wrench

Caterpillars of this butterfly eat buds and leaves in spring. In the summer they pupate, then turn into butterflies and lay eggs (new generation) on the leaves and shoots of the plant.

Apricot Pest Control

In time, collect and destroy damaged fruit, scrape the old bark from the trunk, whitewash the stumps, dig up the soil in the tree trunks and destroy the larvae living there.

Insect pests are effective in pest control. For example, a 0.2% solution of chlorophos or a 0.5% solution of entobacterin helps well against the codling moth. You can get rid of aphids with Fitoverm or Fufanon. If the tree has already begun to mature the crop, it is better not to use chemicals. Treat plants with soap or other safe natural products.

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Décis, Inta-Vir and others help against the moth and leafworm.

Spraying is best done in the morning after the dew has dried. Try to apply the solution evenly, start from the top of the crown and gradually move down. Especially carefully treat the reverse side of the leaves, where insects and fungal spores like to dwell.

Watch the video: Common Fruit Tree Diseases (September 2019).