Control of Pale Western Cutworm in Wheat1

Abstract

Endrin, dieldrin, TDE, heptachlor, and toxaphene were tested for the control of Agrotis orthogonia, infesting winter wheat. Endrin at 0.2, 0.3, or 0.4 lb. per acre applied by a ground rig delivering 15 gal. of spray per acre reduced cutworm densities to zero. Endrin at 0.1 lb., TDE at 1 and 2 lb., and dieldrin at 6 oz. and 0.5 lb. per acre provided cutworm reductions not greatly inferior nor significantly different, but control with heptachlor at 0.5 lb. and toxaphene at 2 lb. was significantly inferior. Endrin at 0.2 and 0.3 lb. per acre applied by aircraft as 1-gal. emulsions also reduced cutworm densities to zero.