© 2000. Ralph E. Berry, Department of Entomology, Oregon State University, Corvallis, OR.
|The variegated cutworm, Peridroma saucia (Lepidoptera: Noctuidae), may be a serious pest on potato, especially West of the Cascade Mountains. The mature larva pictured here is 40 to 50 mm long and marked with a yellow band along the side and yellow spots along the top of the abdomen. Adults vary in color and have a wingspan of about 45 mm. Larvae feed on potato foliage and also may feed on developing tubers near the soil surface. Damage is most serious in late July and August.|
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