Abstract
Abstract Potatoes were planted on 27 Apr at the Mobay Research Farm, Howe, IN. Plots measured 6 ft (2 rows) x 25 ft with 4 replicates in a randomized complete block design. All treatments were applied with a CO2 pressurized tractor-mounted boom sprayer (3 hollow-cone nozzles/row) at 26 psi and 50 gpa on 17 Jun, 11 Jul, and 19 Jul. Efficacy data on Colorado potato beetle (CPB) included larval and adult counts, and defoliation ratings which reflected larval feeding (30 Jun) and additional feeding due to adult emergence on 15 Jul. Green peach aphid (GPA) and potato leafhopper (PLH) control was evaluated by counting the total number of insects on 10 leaves/plot.
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