Abstract
Abstract Potatoes were planted 24 May, at the University of Minnesota Agricultural Experiment Station, Rosemount MN. Treatments were 20 ft long, with 40-inch row spacing, randomized in complete blocks with 3 replications. Insect numbers were estimated by counting nymphs on the underside of 35 leaves per plot. Foliar sprays were applied using a CO2 powered hand-sprayer delivering 36 gal of water/acre at 35 psi. Treatments were applied 22 Jul and 30 Jul. Percent control was calculated by comparison of treatment counts to those for the untreated control.
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