EVALUATION OF SELECTED FOLIAR INSECTICIDES FOR CONTROL OF BEAN LEAF BEETLE IN SOYBEAN, 2010.

A test was conducted to determine efficacy of foliar-applied insecticides against BLB, a recurrent pest in Virginia and North Carolina soybean. ‘Asgrow AG4907’ soybean seed was planted 26 Apr at Flatland Farms in Beaufort County, North Carolina, using 36-inch row spacing. A RCBD was used with 4 replicates; plots were 4 rows by 40 ft. Treatments were broadcast (BC) on 25 Aug with a CO2pressurized backpack sprayer at 16.5 gpa and 22 psi through 8004E nozzles spaced 36 inches apart on the spray boom. Efficacy against BLB was determined at 3, 7, and 13 DAT by taking 15 sweeps/plot with a standard 15-inch diameter sweep net and recording the number of adults. Data were analyzed using ANOVA and LSD statistical procedures.