EVALUATION OF INSECT GROWTH REGULATOR-FEEDING STIMULANT COMBINATIONS FOR MANAGEMENT OF FALL ARMYWORM (LEPIDOPTERA, NOCTUIDAE)

Application of RH-5992 2F, a neural agonist insect growth regulator, t o foliage of corn (Zea mays [L.]) and southern pea (Vigna unguiculata [L.]), resulted in significant levels of fall armyworm (Spodoptera fru giperda [J. E. Smith]) larval control. The addition of a cottonseed fl our-based feeding stimulant, Konsume, at 10% of total spray volume to the insect growth regulator reduced the length of time needed for larv al mortality to occur compared to the insect growth regulator alone. A dditionally, feeding damage and percentage of corn plants infested by fall armyworm was significantly reduced using RH-5992 2F + Konsume. Re sidual activity of RH-5992 remained high (> 84% larval mortality at th e highest evaluated rate of RH-5992) on southern pea throughout the tw o-week test period.