White grubs are the C-shaped larvae of many different beetles, including Japanese, May/June beetle, Oriental, Asiatic garden, European chafer and masked chafer. They feed on the fibrous roots and thatch of turf during the spring and fall months. Infestations over six to ten grubs per square foot can be devastating to turf, causing large brown areas of dead grass which can be peeled back like a carpet. Full grown larvae are one-half to three-quarters of an inch long and can be identified by the rastral (hair) pattern found on the tip of the abdomen using a hand lens. The best time to control grubs is right after egg hatch in mid summer.

The life cycle of typical annual grub species

May/June Beetle
Green June Beetle
European Chafer
Masked Chafer
Japanese Beetle
Oriental Beetle
Asiatic Garden Beetle
Green June Beetle Adult
European Chafer Adult
Masked Chafer Grub
Oriental Beetle Adult
Masked Chafer Grubs in Turf
Asiatic Garden Beetle Adult
Masked Chafer Adult Lurida
Japaneese Beetle All Stages
Grub Damaged Lawn