Agrotis orthogonia
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Agrotis orthogonia Morrison, 1876 - (pale western cutworm)
This moth is found in western parts of North America from western Canada to California. It feeds mainly on various types of grasses and can be a pest of cereals. The adult moths fly in late summer and autumn and lay eggs into the soil. The eggs overwinter and larvae emerge from them in spring. The larvae damage seedlings, cutting holes into the shoots, before the leaves unfold and often while they are still in the ground. Whole leaves or whole plants are frequently cut off.
The wingspan of the adult moth is between 30 and 40 mm. The forewings are mostly creamy white with dark brown areas, marks and spots.
| Vernacular names | |
|---|---|
| • English: | pale western cutworm western cutworm |
| • Français: | ver-gris orthogonal |
- Other images of Agrotis orthogonia (IPM Images and Wikimedia Commons - click to enlarge)
adult moth
larva
larva
