If you see Japanese beetles in your trees, and dead patches of grass in your lawn, you could have grubs. Grubs are the larvae of Japanese beetles, June beetles, and chafers. These C-shaped creatures feast on the roots of your grass. A bad infestation can kill your lawn. To find out if you have a problem, peel back a square foot of turf. If you see six or more grubs, it's time for action. With good treatments available, such as Scotts® Grubex®, and good timing, you can keep grubs under control.
You want to apply your Scotts® Grubex® when grubs are newly hatched or just before. That's because they're easier to control when they're small. For most lawns, that means applying around June and July, or when you see adult Japanese beetles flying around.
You want to make it easier for the treatment to work. That's why it helps to mow your lawn before treatment. Also, if you have more than half an inch of thatch, it could get in the way of the treatment. You'll want to de'thatch your lawn first.
Apply the day after watering your lawn, then water thoroughly after treatment. You want the treatment to soak in and get the grubs where they live.
Make it a routine to apply Scotts® Grubex® lawn treatment every June or July.