Abstract
Abstract Potatoes were planted on 16 Apr at the Eastern Shore Agricultural Experiment Station, Painter, VA. Each plot consisted of four 25 ft. long rows, replicated 4 times in a randomized, complete block design. Sprays were applied beginning on 17 May through 23 Jun using a propane compressed gas back pack sprayer delivering 40 gal water/acre at 40 psi. A total of three Fipronil 80WG applications was made every two weeks, and Asana XL + PBO was applied weekly. Evaluation criteria consisted of counts of all CPB life stages present on 5 randomly chosen stems/plot 3 or 4, 7, and 14 days after each Fipronil 80WG application. Aphids and leafhoppers were sampled on 10 randomly picked leaves/plot on the dates indicated, and estimates were taken on hopper burn and defoliation. The plots were harvested and graded to determine yields.
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