European Corn Borer and Green Peach Aphid Control on Bell Peppers, 1979

Transplants were set out at the North Carolina State University, Central Crops Research Station, Clayton, NC, on Jun 13 in a field of Dothan loamy sand. Plots consisted of 20 plants in a single 20-ft row. They were separated within rows by 5 ft of bare ground and between rows by one unplanted row. Overhead irrigation was supplied as needed. Treatments were replicated 4 times in a randomized complete block experimental design. To insure an adequate ECB infestation, 12 and 8 egg masses were pinned to randomly selected plants in each plot on Jul 25 and 31, respectively (total: 20/plot). Egg masses were obtained from a laboratory colony started from field collected adults and maintained on artificial diet for one generation prior to collection of the eggs for use in this study. Foliar sprays were applied weekly from Jul 16 to Aug 6 using a CO2 powered, back-pack sprayer equipped with 3 hollow cone nozzles calibrated to deliver 35 gal/acre at 40 psi. Furadan 10G was incorporated in a band 2 In wide and 4 in from the base of the plant. Furadan was applied in a split application, 2 lbs ai/acre on Jun 28 and 3 lbs ai/acre on Jul 26. On Jul 30, all apterous M. persicae were counted on 6 randomly selected leaves per plot. On Aug 9, 25 mature green fruit were harvested from each plot and examined for ECB injury.