Colorado Potato Beetle Control on Potatoes With In-Furrow Treatments and Microbial InsectiCides, 1996

Abstract

Abstract ‘Kennebec’ potatoes were planted in 20 foot rows on 8 Apr, ‘96. Plots consisted of single treatment rows. The distance between rows was 64 inches and the distance between plants within the row was 8 inches. Plots were arranged in a RCB design with 4 replications. The soil was a Norfolk ‘A’A loamy sand. Initial furrow treatments were mixed in 208 mis. of water and applied with a CO2 backpack sprayer at the rate of 40 gallons per acre at 30 psi on 8 Apr. Foliar treatments of Novodor were mixed in 1.5 gallons of water and applied with a custom built compressed air row crop sprayer. Each row was covered by 6 drop nozzles delivering 50 gpa at 30 psi. Treatments of Novodor were applied 27 Jun. In evaluating the treatments, direct counts of the number of Colorado potato beetle adults, larvae and egg masses/10 plants and percent defoliation were recorded. Yields were taken on 8 Jul from 20 ft of row.