For example, post-treatment irrigations are recommended following use of Dursban and Oftanol sprays to reduce the amount of insecticide that remains on leaf tissues. However, excessive watering does not improve the movement of insecticide into the root zone and can decrease the effectiveness of insecticides for soil insect control. Furthermore, excess watering increases potential problems with pesticide and fertilizer run-off. The form of the insecticide has little effect in white grub control. Granular and liquid sprays often perform equally.
Treatments made against older grubs often result in poor control.
Black turfgrass ataenius is best managed by applications that control adults, made during periods when large amounts of the beetles are observed at dusk. These biological controls are available from various suppliers.