What You Need to Know About White Grubs

How you can protect your lawn from this vicious pest

White grubs are small, plump, white larvae which viciously chew on the roots of your lawn. Since the grass roots have been destroyed, the lawn will appear yellow in patches, just like the lawn is dying out. The damage looks quite similar to symptoms of dryness and many Weed Man customers mistakenly assume that the lawn needs only water to restore a lush, green appearance. Other symptoms to watch for include: animals like skunks and raccoons digging up the lawn and birds feeding on grubs, leaving pencil-sized holes. Often damaged turf will roll back like a carpet since the roots have been eaten by the grubs!

Life Cycle

To control an insect population we must understand its habits and life cycle. White grubs complete their life cycle in one year. White grubs survive the winter as larvae in the soil. Later in the spring and summer, they enter a resting stage (pupae) then hatch into adult Japanese Beetles. Weed Man customers beware! Lots of Japanese Beetles can mean a grub problem later. The adult beetles don't harm the lawn but are a warning sign of the possibility of grubs feeding on your lawn in the near future!  Beetles lay their eggs which hatch into grub larvae. The larvae feed voraciously, which results in the yellowing of your lawn.

Serious damage usually occurs in the fall (September and October). If the problem is ignored the patches will get larger. The damaged areas will then fill in with weeds or crabgrass. The best time to treat grubs is when they are very young (June or July), before you are faced with severe damage. 


The only way to guarantee that your lawn won't be damaged this year by grubs is to have Weed Man apply their preventative grub control.  This application treats the grubs early and doesn't allow them to damage your lawn by feeding on the roots of your turf throughout the summer.  Contact us today at 847-549-9333 to make sure that you've signed up for this very important treatment yet and we'll make sure that your lawn stays grub free.

What if you wait to see if you have a problem?

The problem with holding off on the preventative grub control is that once you see evidence of grub activity, the damage has already been done to your lawn's root system.  Sure, we can treat the grubs present at that time, but it's impossible to repair the root damage that's already taken place.  Usually, wherever there's been grub activity, the affected areas will need to be reseeded or resodded at significant cost to the homeowner.  You can look at preventative grub control as an insurance policy guaranteeing you that your lawn will be grub-free for the entire year.

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