Abstract
Abstract Eight insecticides were examined to determine their effects on pest and beneficial arthropods associated with soybean. Insecticides were applied Aug 30 in ‘Essex’ soybean grown on the Carroll Balderson Farm near Montross Virginia. A randomized block experimental design was used with 3 replications. Individual plots were 4 rows 50 ft long and spaced 3 ft apart. Each spray concentrate was applied to the soybean foliage with a CO2 powered back-pack sprayer at 30 psi that delivered 27 gal of finished formulation per acre. Individual treatments were evaluated 1-, 5-, 8-, and 14-days after application by comparing the number of Mexican bean beetles, green clover worms, and predators per 20 sweeps (15 inch diameter net) in the treated plots to those in the untreated plots.
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