![]() Causing no damage, they fly around at night (attracted to electric lights), mate and lay eggs late in the afternoon or at night. Adult moths emerge from overwintered pupae or early-season pupae. ![]() Mature cutworms return into the soil where they will dig a small chamber in which they pupate. Full grown cutworms are two inches long.Įggs are small and hemispherical laid under debris, in the soil or on leaves and stem depending on geography.ĭeveloping larvae, cutworms, and pupae overwinter in the soil especially from previously grassy areas. The spotted cutworm has a dark stripe along each side of its body and several pairs of triangular-shaped black dashes at the rear of its back. The black cutworm is greasy gray or brown with faint lighter stripes and granular appearance. The variegated cutworm is grayish brown and lightly speckled with darker brown it has a single row of pale yellow dots along each side of its body. They have a smooth skin and a wet or greasy texture their body is plump. Cutworms are caterpillars that when disturbed curl their body into a tight ‘C’ appearance. Larvae are the cutworm which is the damaging stage. DescriptionĪdults are called miller moths and are usually drab gray or brown but also can be somber yellow and tan. They all have similar habits and appearance therefore, variegated cutworm is used as the model. Nationally the most economically important ones for potato are the variegated cutworm (Peridroma saucia), black cutworm (Agrotis ipsilon) and spotted cutworm (Amathes c-nigrum). Cutworm is a general term referring to the larval stage of many night-flying miller (Noctuid) moths.
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