The larvae feed on on all common species of turfgrass. Adults do not feed to any great extent although they are a problem because animals such as skunks and raccoons tear up the lawn to feed on them.

Damage to the turf by the larvae appears as brown dead patches among areas of green turf. Grub populations are common in most home lawns and only become a problem when the population exceeds 5 Grubs per square foot. Most areas of Southern Ontario are infested with Grubs. The more southern areas closest to Lake Ontario suffer from the worst infestations.

In late June and July, beetles emerge from the turf and fly to trees where they congregate for mating. Adults are active for two to three weeks during which time each female may deposit 25-50 eggs.

Small larvae hatch in mid to late July and become mature larvae 7-8 weeks later in September. Larvae are well adapted to cool soil temperatures of southern Ontario and feed on the roots and grass crowns until late fall. The mature Grubs move down in the soil 6-12 inches below the frost line as the soil freezes in the fall. Grubs return to surface in early April and feed for 4-6 weeks.

Grubs can be controlled very effectively once a year with a new product called Merit. This new generation control is targeted to only harmful pests. It will not negatively affect earthworms, birds, or other species that help make our environment a better place. Merit Grub treatment is FREE with Dr. Green's Very Best treatment plan.