Effect of selfing bags and insecticides on insect control and some plant traits in sorghum

Abstract

This study was designed to investigate the effect of selfing bags and insecticides on insect control and some traits in sorghum. Eleven treatments including checks were applied to three sorghum varieties. The treatments involved the use of 6 insecticides in dif¬ferent combinations and dosages. The treatments were applied to the bags used to cover the panicles or directly to the panicles. This experiment was conducted at the Perkins Agronomy Research Station of the Oklahoma Agricultural Experiment Station from June to October, 1979. The experimental plots consisted of a 3 x 11 factorial arrange¬ment in a randomized complete block design with three replications. The rows were 25 feet long and had 50 plants, approximately. Ten panicles from each treatment in each replication were selected at random prior to anthesis and covered with selfing bags. Eight variables were evaluated in this research: corn leaf aphid incidence, corn earworm damage score, panicle weight, grain weight per panicle, threshing percentage, weight of 100 kernels, percentage of sterility, and percentage of germination.