Once the crop is beyond the seedling stage and the first true leaves are fully expanded, serious damage usually does not occur. By mid June, adult beetles decrease in number. Early Planting . . . The early planting and establishment of canola can prevent significant injury to young plants by flea beetles migrating to fields after the first true leaves are fully expanded. Seed Treatment . . .
Gaucho is for use by commercial seed treaters only.
Currently, Gaucho is the only registered seed treatment insecticide labeled for use in North Dakota. Foliar Treatment . . . Fields should be checked daily for the presence of flea beetles while canola plants are at risk. Foliar treatments must be made quickly. The weakness of foliar control strategies is the inability to cover large numbers of acres quickly when feeding pressure is high, and residual protection by the insecticides is short, allowing for reinfestation to occur.