European chafer grubs in Massachusetts identification, lawn damage & prevention.
European chafer grubs are an important white grub pest in Massachusetts lawns, especially in parts of eastern Massachusetts. These root-feeding larvae live below the soil surface and can weaken turf before homeowners realize there is a problem. This guide explains how to identify European chafer grubs, what kind of damage they can cause, and when homeowners may want to explore professional grub control service.
What are European chafer grubs?
European chafer grubs are the larval stage of the European chafer beetle. Like other white grubs, they live in the soil and feed on grass roots. In Massachusetts, European chafer has become an important lawn pest and is especially common in many areas inside Route 495 in eastern Massachusetts. Because feeding takes place underground, the lawn may look fine at first and then begin thinning, browning, or pulling up easily later in the season.
European chafer grubs are the immature stage of the adult chafer beetle.
They damage turf by feeding on the roots that help grass stay healthy and anchored.
European chafer is especially common in many areas of eastern Massachusetts.
How to identify European chafer grubs
European chafer grubs are typical white grubs: pale, C-shaped larvae with a brown head that are found below the turf surface. Most homeowners identify them by where they are found and by the kind of damage they leave behind. Precise species identification often depends on close inspection of the raster pattern on the underside of the last abdominal segment, which is why professional identification can be helpful when timing and treatment decisions matter.
Like other white grubs, European chafer larvae curl into a C-shape when disturbed.
They have a pale body with a darker brown head capsule.
They are usually found beneath damaged turf in the root zone rather than on top of the lawn.
What damage do European chafer grubs cause?
European chafer grubs feed on turf roots, which weakens the lawn from below. As root damage increases, grass can lose vigor, develop brown patches, and become easier to lift from the soil. Because the lawn is less stable, it may also become more vulnerable to hot weather and to digging by animals such as skunks and raccoons.
Root loss can cause stressed, weak, or dead-looking sections of turf.
Damaged grass may pull back more easily because the root system is weakened.
Skunks and raccoons may tear into lawns when they detect grubs below the surface.
A lawn with damaged roots often declines faster during hot, dry conditions.
Damage often appears in irregular sections rather than evenly across the lawn.
Visible lawn decline may not appear until after root feeding has already caused stress.
When are European chafer grubs active?
European chafer follows a life cycle that is broadly similar to other annual white grubs, but its activity often occurs about two weeks earlier than some of the other common species. That earlier timing matters because treatment windows and scouting decisions can be different when European chafer is the dominant grub species in a lawn.
Other lawn grubs in Massachusetts
European chafer grubs are only one of several white grub species that can damage Massachusetts lawns. Explore related grub pages below.
Related grub resources
Explore these pages to learn more about lawn damage, treatment timing, and DIY vs professional options.
Need help with European chafer grubs?
If your lawn has brown patches, loose turf, or animal digging, European chafer grubs may be part of the problem. Truly Lawn can help identify the issue and build a plan around the right seasonal timing.
Frequently asked questions
Quick answers about European chafer grubs in Massachusetts lawns.
European chafer grubs are pale, C-shaped larvae with a brown head, usually found below weakened turf.
Yes. They feed on grass roots and can contribute to brown patches, thinning turf, and weakened lawns.
Some treatment approaches are less effective on certain grub species, including European chafer, so identification can matter for management decisions.
Timing matters with all white grubs, and European chafer activity often occurs earlier than some of the other common species.