Winter Moth

(redirected from winter moths)
Also found in: Dictionary.

Winter Moth

 

(Operophthera bmmata), a moth of the family Geometridae. The female’s body is 8-10 mm long and brownish gray, with underdeveloped wings having two dark transverse stripes. The male’s wings are developed (wing-span, 20-25 mm) and are yellowish gray or brownish gray with dark wavy transverse lines. Winter moths are found in Europe, Asia (the Asian part of the USSR, Japan), and North America (Canada); in the USSR they are distributed predominantly in the forest and forest-steppe zones.

The winter moth damages leafy varieties of plants. The moths deposit eggs in the autumn on the upper part of the crown. In the spring the caterpillars gnaw the buds, leaves, flower buds, and flowers and form hollows in the gynoecia. They pupate in the soil at the beginning of summer. Methods of protection include treating trees with insecticides in the fall and putting rings of glue on the trunk to prevent the females from crawling up to the crown to deposit their eggs.

REFERENCE

Vasil’ev, V. P., and I. Z. Livshits. Vrediteliplodovykh kul’tur. Moscow, 1958.
References in periodicals archive ?
Winter moths were first introduced from Europe to Nova Scotia sometime around 1950.
coincide with highest population of Winter moth caterpillars.
These will help to catch the female winter moths as they attempt to climb up the trunk and lay their eggs on the foliage.
Renew grease bands around fruit trees to protect trees against winter moths.
TipGREASE bands wrapped around the bottom of fruit trees will prevent any wingless winter moths climbing the trunks to lay their eggs.
On warm evenings this past month, winter moths emerged out of the ground flying into our lights.
Place grease bands on the trunks of all fruit trees to stop wingless females of winter moths from climbing the trunks.
EFFORT Use sticky grease bands to stop wingless female winter moths climbing trees to lay their eggs.
Fruit At the end of October, sticky grease bands can be put on fruit trees to protect them from female winter moths.
A 23-year study of great tits and winter moths at one site in the Netherlands revealed that by 1995, the early caterpillars were hatching about 9 days sooner and developing into moth pupae more quickly than they did in 1973.
DON'T forget to protect your fruit trees against munching winter moths.
Yet, increased numbers of Winter Moths have been observed this year from the Cape Islands to Shrewsbury.