Soybean looper (SBL) is one of the most economically importantinsect pest affecting soybean in Arkansas. A trial was conductedon a grower field in Phillips County, Arkansas to evaluate the efficacyof Chrysodeixis includens nucleopolyhedrovirus (ChinNPV)on soybean looper. Plot size was four rows by 50-ft long on 38-inchrows, arranged in an RCB design with four replications. Insecticideswere applied with a Mud-Master sprayer equipped with a multiboomdelivering 10 gpa at 40 psi through 80-02 dual flat fan nozzleswith 19.5-inch spacing. Insecticide application occurred on 30 Aug.SBL densities were determined by taking 25 sweeps per plot witha 15-inch diameter net. Samples were taken on 2 Sep, 6 Sep, and 9Sep, 3, 7, and 10 days after treatment (DAT), respectively. Data wereanalyzed with ANOVA and means were separated using a Duncan’sNew MRT (P 0.10).
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