This may be achieved better with liquid sprays than with granular formulations. White grubs are the most damaging Insects in Colorado lawns along the Western Slope, in the Arkansas Valley, and through much of the Eastern Plains. The larval or grub stage feeds on grass roots. Severe feeding injuries result in wilting and often death of infested areas. Because white grubs also are a favorite food of skunks and raccoons, damage by these mammals in search of food may exceed that caused by white grubs.
White grubs live in the soil, often in the top inch of the root zone during warm months.
They generally are creamy white with three pairs of legs. They typically curve their bodies into a distinctive C-shape. Grubs move down deep in the soil and remain below the frost line during winter. Adult stages of white grubs are known as scarab beetles. May beetles, June beetles, chafers and dung beetles are other scarab species found in the state.