Twisting currant leaves: causes and methods of struggle

Currant leaves are an indicator of her health. Crown with green smooth leaves pleases the eye and creates confidence, that the size and quality of the future harvest will be excellent. But what to do, if the leaves curl and dry out? Immediately diagnose and treat.

reasons for twisting

It is impossible to unambiguously indicate what currants suffer from, after all, twisting the leaves may be evidence of a viral or fungal disease, damage by one of the many pests. A closer look at the plants will help identify others, not so noticeable symptoms, which can more accurately identify the problem.

spider mite

This mite parasitizes many cultivated and weedy plants and is moved by the wind. Its presence can be detected on the inside, which he weaves the thinnest web. It is initially covered with small bright spots, which are gradually increasing. After some time the leaves darken, twist and dry.

glass currant

This is a small butterfly with transparent wings, alternating dark and light stripes on the body, remotely resembles a wasp. She flies through 2 weeks after flowering currants and lays on 50-60 eggs in cracked bark at height 40-70 cm. Across 10-15 days caterpillars appear, are introduced into the trunks and make them long, to 50 cm walk, eating the core. They also spend the winter there. During its life, the caterpillar can damage several shoots, starting with the young and moving on to the more mature. Gooseberry and currant varieties resistant to greenhouses have not yet been bred.

In the initial stage of parasite attack, changes in currants are barely noticeable - slightly smaller leaves and fruits. Next year, when overwintered and mature caterpillars begin to feed heavily, affected branches become visible against the background of healthy leaves during flowering. When removing damaged shoots in the center of the sections are blackened holes.

Currant leafkova galitsa

It's small (close 1,5 mm) a fly from the Gaul family, which appears during the mass flowering of black currants. For 2 days, Components of the period of her life she lays eggs on young leaves at the top of the shoots. Larvae, hatched eating leaves, because of which the tops are curly and die. This pest is especially terrible for young currant plantings.

Currant running Galicia

Unlike sheet, runaway gall hides the masonry in cracks in the bark at the base of the currant branches. Larvae, penetrating deep into the shoots, eat juice, which leads to drying and death of some branches. He is born in the summer 2-3 generation of these pests. Shaded places of growth with high humidity promote their development.