Pest Type: Fruit Pest
Row: Lepidoptera – Lepidoptera
Family: moth crumbs – Lyonetiidae
It is found everywhere. It damages apple trees, quinces, cherries, cherries, plums, cherry plums, almonds, virgin, cotoneaster, hawthorn, mountain ash, chestnut, birch.
Butterfly with a wingspan of 8-10 mm; fore wings narrow; wintering butterflies are gray-brown; the pattern of the front wings consists of dark spots in the apical part; the top of the wings ends with a fan-shaped spot with a narrow tassel of dark hairs; hind wings narrow, with long fringe. Egg size 0.3? 0.2 mm, oval, whitish. The caterpillar is 6 7 mm long, green, the chair and legs are dark browns. Pupa – 4.5 mm, from light to gray, in a white cocoon.
Butterflies overwinter in crevices of the bark and hollows. Years coincides with the phenophase of the pink bud in the apple tree. Females lay their eggs in small pits made by the ovipositor on the underside of the leaf. The average fecundity is up to 50 eggs.
The lifespan of butterflies is 20 days. Caterpillars regenerated after 5-7 days penetrate into the leaf and gnaw out a long, in the form of a snake, mine from 15 to 18 mm long. In the center of the mine, without touching the sidewalls, a dark string of excrement is placed. The duration of caterpillar feeding is 7-14 days. Having completed development, the caterpillars gnaw through the crescent hole, exit the mines and pupate in a white spider web cocoon from the bottom of the leaf. Pupa develops for 12-14 days. Butterflies flying outlay their eggs, giving rise to the development of the second generation. 3-4 generations develop during the season. Butterflies of the last generation remain for the winter.