Abstract

Abstract Peanuts were grown under standard production practices in sandy soil at a location in Gates Co. Plots 4 rows wide (36 inch centers) by 20 ft long were arranged in a randomized complete block design with 4 replicates per treatment. Insecticides were applied using a C02 backpack sprayer delivering 35 gal/acre at 40 psi with 8002 flat fan nozzles. Treatments were applied on 26 Aug under sunny conditions and temperatures around 85�F. Ten consecutive row ft of each plot was sampled just before and 24 h after treatment using a standard beat cloth technique. Pretreatment counts determined the caterpillar populations to be 90% corn earworms and the rest fall armyworms and yellowstriped armyworms. Most caterpillars were fourth or fifth instar. Foliage was dry during both treatment and sampling.

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