Peridroma saucia – Variegated Cutworm (VC)
Scout for larvae from late June through post-harvest to determine the need for insecticide applications. Cutworms can be found in the canopy, but it is typically easier to shake stems to dislodge larvae and inspect the soil surface. Sweep-net samples are less effective, particularly when canopies are dense. Shake plants at several sites throughout the field and carefully look for larvae in soil cracks, under leaves, and in old, brown, curled leaves. Treatment is recommended when larvae reach two to four per ft2.
PNW Pest Management Handbook – Armyworms and Cutworms in Mint