Billbug Grubs


Billbug grubs are the larvae of adult Billbugs. They are white, crescent-shaped, and are 3/8 inch long. They have a yellowish head and no legs. They feed on turfgrass roots and stems near the base.

Symptoms of Billbug Grubs: At advanced stages, a small and distinct circular pattern will develop, which becomes yellowish or brown. Damaged stems break off at the base and can be easily pulled up. Most damage usually begins in late spring and continues through the summer.

What to do: Helpful control practices include regular applications of fertilizer, and proper mowing and watering. Your lawn needs about 1 1/2 inches of rainfall or irrigation each week, especially in late spring and early summer. Mow frequently, every 5 – 7 days. Keep the mower blade sharp and cut the grass tall (at least 2 1/2 inches).

When activity is observed, Grass Carpet Lawn Service can apply insect control to the affected areas. If arrangements have not been made, please contact our office or speak to your Lawn Specialist to schedule an application to your lawn.