The incidence of bacterial fruit blotch can be reduced by applications of copper fungicides. Two to three biweekly applications with good foliar coverage is essential for best control. Applications should be made at first flower and continue through fruit maturation. An informational brochure has been compiled by several cooperating states and can be obtained from Extension Plant Pathology. Dr. J. Pat Harris, Extension Entomologist Surface black cutworms are generally found attacking our sweet corn and other vegetable crops.
Infestations are more common in low-lying, damp fields with higher organic matter.
Larvae exhibit three different feeding habits depending on the stage of growth. The late second and early third instars eat holes in the leaves. Larvae then move from the leaf area into the soil and begin feeding by cutting plants at the soil surface. Sometimes black cutworm damage is spotty in fields, and replanting these areas may be more economical than applying chemical controls. For control on cabbage, english peas, irish potatoes, and spinach, use applications of Sevin insecticide.