Do You Have a White Grub Problem?
Grub management typically refers to white grubs, one of the most destructive insect pests when it comes to grass. These small, white critters feed on grass at the roots and cause large sections of turf to die in a short period. (Grubs are actually the larval life-stage of several different species of beetles in the scarab family.)
Evidence of a grub infestation starts with localized patches of discolored and dead grass displaying symptoms of dehydration. As more grubs hatch, the number of dead areas will proliferate. If sections of your lawn have a spongy texture and pull back from the soil relatively easily, this can signify a grub infestation. (You may even be able to see the white grubs just underneath the turf.)