Insecticides to Control Cucumber Beetles in Spring and Fall, 1996

Abstract

Abstract Cucumbers were planted on 17 Jun and 12 Aug at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. Each plot consisted of 2 rows 25 ft long with 5 ft spacing between rows. Plots were separated from each other by 10 ft of bare ground. Treatments were replicated 4 times in a RCB. Prior to planting, the Admire and Furadan treatments were applied in furrow using a single nozzle boom backpack sprayer. The foliar sprays were applied with a 3 hollow cone nozzle boom backpack sprayer delivering 45 gpa at 40 psi. The Adios AG treatments were broadcast over the appropriate rows using a hand-held shaker on the same dates as the foliar sprays. Application dates were 18 and 24 Jul and 2 Aug for the spring planting and 30 Aug and 9 and 23 Sep for the fall planting. Evaluation criteria were: beetle counts on a 6 ft row section of each plot. Dates with significant differences are recorded in the tables. No attempt was made to obtain yield data, because the growth of the crop across the field was highly variable due to heavy rainfall, especially in the spring planting.