Control of European Corn Borer in Whorl Stage Corn, 1992

Abstract

The experimental design was a randomized complete block with 31 insecticide treatments and a control replicated 4 times. Single row plots were 16.6 m in length. Granular insecticides were applied with cone belt distributors mounted on a Halm Hi-boy. Application date was Jul 2. Three days prior to insecticide application 6 black headed ECB egg masses were infested in marked plants for later evaluation. On Jul 29, 10 marked plants in each replicate were dissected from tassel to ground, examined and the number of corn borer cavities recorded.