Grubs can seriously damage your lawn if you let them get out of hand. White grub damage will appear to you as thinning or browning of your turf. Damage from grubs most commonly appears in the late summer or fall - if you notice damage in the spring, there is a good chance this is just carry over from the previous fall.

White grubs (which are larvae of certain beetles) live under the ground and feed on the roots of your grass, making it much more difficult for your lawn to get its required nutrients. If it gets really out of hand, your grass can even end up with such little rooting that it’s almost like a carpet that can be rolled up.

The most common solution to grubs is Scotts GrubEx. Applying this should take care of most grub problems in one pass.