Abstract
Abstract Cucumbers were planted on 2 Aug at the Eastern Shore Agricultural Experiment Station, Painter, VA. Each plot consisted of a 25 ft row bordered on each side by an untreated row. Plants were spaced 12 inches apart with 5 ft spacing between rows. Treatments were replicated 4 times on a randomized complete block design. Sprays were applied with a propane compressed-gas backpack sprayer using 3 hollow-cone nozzles per row and delivering 70 gal water/acre at 40 psi. Applications were made weekly beginning 16 Aug through 26 Sep. Evaluation criteria consisted of direct visual counts of the number of striped cucumber beetle (SCB), spotted cucumber beetle (SCRW), and squash bug (SB). Counts were taken on 10 randomly chosen plants/plot on 16 and 22 Aug. On the remaining sampling dates after the vines began to run, counts were taken in two randomly chosen 6 ft sections/plot. On 28 Sep, the percent wilted vines/treatment was calculated to determine the extent of cucumber beetle-transmitted bacterial wilt.
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