Abstract
Abstract Broccoli (cv. Premium Crop) was planted on 13 May 1996 at the Horticulture Field Research Center in Ft. Collins, CO. Plots consisted of single 10 ft long rows with 15 in. in-row spacing, arranged in RCB design with six replications. Each plot consisted of 8 plants. Repellent treatments were applied on 20 and 30 May, and 3 and 24 June with hand-held sprayers. Plants were sprayed to the point of drip delivering a spray volume of approximately 167 ml for each plot. Insect counts were made on 21 and 31 May 4, 6, 11, 20, 24, and 28 Jun, and 1 and 11 Jul by whole plant examination of 4 plants in the center of each plot.
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