Abstract
Abstract ‘Roundup’ cabbage and ‘Jade Cross’ brussels sprouts were transplanted Jul 12’78 on the Robbins Farm near Geneva, NY. Treatments were replicated 4 times in a randomized block design with 15-ft between each replication. Plots consisted of two 50-ft rows, 36-inches wide, with a 16-inch plant spacing. Two buffer rows of sweet corn separated each treatment. A 2-row, tractor-mounted boom operating at 60 psi, delivering 35 gal H2O/A and having 3 nozzles per row, was used to spray each treatment on a weekly schedule. Effectiveness of treatment was determined by counting diamondback and cabbage looper larvae on 3 plants per replication. Larvae counts were made 2-4days after application. Diamondback infestation was unusually high while cabbage looper infestation was moderate.
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