Abstract
Abstract ‘Ranger’ cabbage were seeded into a Sassafras sandy loam field on 15 Jul. Plots consisted of a single r ow 25 ft long and 5 ft wide replicated 4 times in a randomized complete block design; a guard row buffered each treated row. Treatments were applied with a tractor-mounted boom sprayer with a drop nozzle on either side of the row and 1 centered over the row calibrated to deliver 41 gal/acre at 40 psi operated at 2 mph. Treatments were applied 3 Sep and 12 Sep. Evaluations for the various treatments included direct larval counts per 10 plants (26 Sep), foliage injury ratings (expressed as percent defoliation, 17 Sep) and percent marketable heads (clean heads with at ieast 2 undamaged wrapper leaves, 2 Oct).
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