Control of Yellowmargined Leaf Beetle on Mustard, 1995

Insecticide treatments at labeled rates were applied on mustard on 11 and 18 May 1995 at the Burden Research Plantation, Baton Rouge, LA. A CO2 powered backpack sprayer calibrated to deliver 40 gpa at 30 psi through a spray boom with three nozzles was used. Experimental plots consisted of single rows (30 feet long, 4 feet wide) arranged in a RCB design with 4 replications. Insect counts were made with beat sheets (3X2) on 10 May and 17 May (pre-treatment counts) and 12 May and 19 May (post-treatment counts). Three samples were taken from each plot and the number of insects present of each species was recorded.