Abstract
A field trial evaluated selected foliar treatments against soybean looper (SBL) on R5.5 stage soybeans at the Macon Ridge Research Station (Franklin Parish). Soybean seed were planted into a Gigger-Gilbert silt loam soil on 15 Apr. Plot size was four rows (40inches on centers) X 45 ft. Treatments were arranged in a RCB design with four replications. Insecticides were applied with a highclearance sprayer and compressed air system calibrated to deliver 6 gpa through TeeJet TX-8 hollow cone nozzles (2/row) at 50 psi. Insecticides were applied on 13 Aug, and post-treatment evaluations were performed at 3, 7 and 11 DAT. Insecticide efficacy was measured by taking 25 sweep-samples with a sweep net (15 inches diameter) in each plot and recording the number of SBL larvae > 1⁄2 inch. Data were subjected to ANOVA and means separated according to DNMRT. Total rainfall of 0.76 inches occurred during the trial period.
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