Pest Type: Fruit Pests
Row: Lepidoptera – Lepidoptera
Family: Moths – Geometridae
It is found everywhere. It damages plums, cherry plums, apricots, cherries, cherries, hawthorn, buckthorn, honeysuckle, and buttocks.
Butterfly with a wingspan of 40-50 mm; the wings of the female are light; the male is orange; the pattern of the wings is represented by numerous dark brown transverse lines, the fringe is light orange or yellow. Egg size 0.5? 0.8 mm, oval, yellow. Caterpillar 40-60 mm long, gray with brown stripes; in the eighth segment, sharp tubercles; in other segments, tubercles are small. Pupa – 17.2-18.5 mm, dark brown, reddish at the end.
Caterpillars of the third and fourth centuries hibernate between cobwebbed leaves. In the last decade of April, nutrition is restored by the buds, which are blooming, and by the leaves. In the last decade of May, caterpillars pupate in a web of cocoon between leaves on the soil surface. After 10-15 days (mid-June) butterflies fly out. In the afternoon, they sit among the fallen leaves or in the crown of a tree on the underside of the leaves. Active at dusk and at night. After mating, the female lays eggs in small groups on the underside of the leaf. Fertility – 25 eggs. Caterpillars regenerated after 10-12 days first skeletonize, then eat leaves and, reaching the third or fourth centuries, remain for wintering until the spring of next year. One generation develops per year.
Protective measures. Autumn tillage in aisles and near-stem circles. Loosening of soil in the last decade of May, during pupation of caterpillars. When the number exceeds 4-5 caterpillars on the 1st branch, the treatment of trees with insecticides or biological products.