Yponomeuta Malinellus

Yponomeuta Malinellus

 

an insect of the family Yponomeutidae (ermine moths), order Lepidoptera. A dangerous pest of apple trees, the insect is distributed in all apple-growing zones. The wing span is 18–22 mm; the anterior wings are silvery white with three rows of black dots; the posterior wings are ash gray. The young caterpillars, after wintering on branches under a scutellum, at first feed inside young leaves, chew out their pulp, and gnaw through to the exterior, enmeshing them in gossamer. The tree is weakened and sheds its fruit.

Control measures consist in spraying the apple trees with insecticides before the buds open or immediately after flowering.

References in periodicals archive ?
The apple ermine moth, Yponomeuta malinellus Zeller (Lepidoptera: Yponomeutidae), is a univoltine defoliator of Malus species in Europe and Asia.
Yponomeuta malinellus were usually collected by cutting branches with tents from positions just above the ground 0-5 m above the ground.
The Natural Enemies of the Apple Ermine Moth Yponomeuta malinellus in Europe.
Larval parasitoids of the apple ermine moth, Yponomeuta malinellus in Korea, Japan, and China.
Seasonal phenology and stage-specific parasitism of the apple ermine moth, Yponomeuta malinellus Zeller, in Korea.
Yponomeuta malinellus Zeller (Lepidoptera: Yponomeutidae), a new immigrant pest of apples in the Northwest: Phenology and distribution expansion, with notes on efficacy of natural enemies.