Control of European Corn Borer on Early Sweet Corn, 1984

This study was performed on the Robert Wiggin Farm, Stratham N.H. and utilized sweet corn that was planted on 25 May ’84. Each plot consisted of a single 30-ft row of corn and each treatment was replicated 4 times and arranged in a randomized block design. The spray treatments were applied using a B & G CO2 pressurized (40psi) single nozzle hand-held sprayer that delivered 14.4 gal/acre. The granular treatments were applied by hand. All applications were directed into the whorls when 58.6% of the corn plants showed signs of European corn borer leaf feeding injury and before tassels began to emerge from the whorls. Two spray applications were made 5 days apart and the granular treatment was applied once. Evaluations for the % of injured stalks and ears were made at harvest time on 20 Jul ’84 by examining all plants in each treatment.