Winter Moth

Operophtera brumata

Winter Moth, Common winter moth, European winter moth, Small moth

Operophtera.brumata.6962 by Olei (CC-BY-SA-3.0)
1 of 4
A male Operophtera brumata Winter Moth
Operophtera.brumata.6962 by Olei (CC-BY-SA-3.0)
1 of 4
These moths can be around the end of autumn to early winter. The female moths cannot fly as the wings they have are tiny. However, male moths can fly and have fully working wings. They're a common moth that can be successful in a variety of habitat types. As stated by their name, these moths can be seen flying throughout winter and can be seen resting on tree trunks during the day from October to January.
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Traits

Are an excellent food resource for wildlife throughout their lives.
Can cause significant damage when trees of preference are close together, i.e. in orchards.

Appearance

The female moths can not fly as the wings they have are very small. However, male moths are able to fly and have fully working wings. They are a light brown and cream colour with black heads. Caterpillars are a yellowish-green with paler lines running horizontally down the length of the body.

Symptoms

You're most likely to see these caterpillars during spring. They generally target the emerging leaves of trees but have been known to feed on blossom and young developing fruits.

Activity

Crepuscular

Personality

Order

Lepidoptera

Family

Geometridae

Metamorphosis

Complete

Distribution

Europe.

Biological treatment

By introducing C. albicans to the area where the winter moths are you can reduce the amount that are about, however they won't get rid of them completely. You can also reduce the amount of eggs hatching by using sticky grease bands, that you attach to the trunk and stake of trees, so that when the females crawl up the trunk to lay their eggs they get stuck.

Chemical treatment

Deltamethrin can be sprayed on some fruit trees and small ornamental trees after the bud burst. It's been advised to always read labels for chemical treatment thoroughly, as such chemicals are non-specific and can hurt other wildlife which is not intended to be targeted. Likewise, flowering plants should never be sprayed as this can harm the beneficial insects in your garden.

Attracts

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