Abstract
Abstract ‘Vates’ collards were direct seeded into double-row beds on 9 Sep and later thinned to 4 inches apart within rows. Each plot was 17 ft long and consisted of 3 36-inch beds with 2 empty beds between plots. The treatments were arranged in a complete randomized block design with 4 replicates. Spray treatments were applied at a rate of 25 gal/acre using a CO2-powered backpack sprayer equipped with a 20-inch boom and 2 Teejet size 18 nozzles angled inward. Eight sprays were applied on weekly starting 4 Oct. Efficacy was determined 6 or 7 d after each application by counting the larvae and pupae of CL and the larvae of SCW on 15 plants/plot.
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