Grub control and prevention in Illinois
Grubs eat grass roots from underneath. By the time the lawn browns and peels back like carpet, the damage is already done and the repair costs more than the prevention would have. One preventive round in early summer handles it.
Short answer
Grubs are beetle larvae that feed on turf roots from June through October. A preventive application in June or early July stops them before they reach the damaging stage. Curative treatment works on active grubs but only while they feed near the surface. EKKO Lawns applies grub control across five Illinois counties and prices it off measured square footage.
How to tell if grubs are the problem
Grub damage looks like drought at first, then stops responding to water. The giveaway is the sod. Grubs sever the roots, so a damaged patch lifts off the soil with no resistance, the way a rug pulls off a floor. Animal digging is the other tell, since skunks and raccoons tear turf apart to get at the larvae.
- Brown patches that spread and do not green up after watering
- Sod that peels back by hand with no root holding it down
- Skunk, raccoon or bird digging across the lawn overnight
- Spongy footing that gives underneath as you walk
- Beetle activity on shrubs and flowers in midsummer
Grub timing through the Illinois season
Grub control is a timing job. The same product works or fails depending on what stage the larvae are in.
June and early July
Prevention window. Product goes down before eggs hatch and sits in the root zone waiting. This is the round that costs the least and works best.
Late July and August
Eggs hatch and small grubs feed near the surface. Curative product still works here, and damage has usually not shown yet.
September
Grubs reach full size and feed hard. Damage appears fast and treatment gets less effective as the larvae grow.
October
Cold soil sends grubs deeper for winter. Product cannot reach them and treatment stops making sense until spring.
Spring
Grubs come back up to feed briefly before pupating. Limited window, and any damage from fall is already in the lawn.
Repair
Where roots are gone, treatment alone will not bring the lawn back. We aerate and seed the damaged areas to rebuild them.
Prevention costs less than the repair
A preventive grub application covers a whole lawn for a fraction of what it takes to reseed the sections grubs destroy. Damage runs in patches, and those patches need soil work, seed and a full establishment period before they match the rest of the yard.
Not every lawn needs it every year. If your property has a history of grub pressure, borders open ground, or sits near heavy beetle activity, prevention pays. We tell you which category your lawn is in instead of selling the round by default.
- One application covers the full season
- Also suppresses other root feeding larvae in the soil
- Protects the investment already made in feeding and seeding
- Licensed applicator and label rate application
Pairs well with
Turf insect control
Chinch bugs and army worms chew from above and get mistaken for drought or grub damage.
See turf insect controlLawn restoration
Where grubs already cleared the roots, the area needs seed and soil work to come back.
See lawn restorationGrub control questions we get
June through early July for prevention. The product settles into the root zone before eggs hatch, which is why the preventive round costs less and works better than treating active grubs.
Pull at a brown patch. If the sod lifts with no roots holding it, grubs cut them. Dig a square foot of turf and count larvae. Five or more per square foot means treatment is warranted.
It stops further feeding. It does not regrow roots that are gone, so damaged areas need seed and often aeration to recover.
No. Some properties go years without pressure. We look at history, surroundings and beetle activity before recommending it.
Yes, at label rates. Granular product should get watered in, and everyone stays off until it does.
Skunks and raccoons dig for grubs. Treat the grubs and the digging stops, though the torn turf still needs repair.
Protect your roots before the damage shows
Call and we will tell you whether your lawn needs the preventive round this year.
