July is the time when I start to monitor my customers’ lawns for grub worms and I figured I’d warn you guys too! Here are the basics on grubs and how to treat for them this summer.
First off, grub worms are the larvae of the Japanese beetle, also known as the June Bug. June bugs zip and zing around lawns and landscapes during the early part of the summer and chew on trees and shrubs. This is bad, but what they do in later August is even worse.
The June bugs also spend time mating and laying eggs in well watered lawns like yours and mine. These eggs hatch into grubs worms and feed on grass roots until November or so. This is where the damage to the lawn comes in, and this is why we need to stop these guys.
The best defense against grub worm infestation is to lay down a preventative insecticide that works systemically. That means the product is taken into the grass plants and stays there for a few months to protect from the inside out.
Most of the grub treatment products you get in the store work this way using a brand product called “Merit.”
I recommend you guys get out this weekend and treat your lawns for grubs and get the product watered into the soil immediately. This way you’ll be covered against damage all season long.
In the next article, I will be talking about the damage the June bugs do to your trees and shrubs and how you can stop them there as well!