Step 1 Check your Lawn for Grubs
If you’ve noticed that your lawn has irregularly shaped brown patches or simply doesn’t look as healthy as it used to, you may have a grub infestation. Another tell-tale sign is small holes in your lawn where animals have been digging. There are, however, other reasons your lawn could be unhealthy, so in order to confirm you’ve got grubs, you’ll need to do a simple check. In your brown patch or patches, dig three sides of a square about 12-inches long into your lawn and peel back the sod. If you see grubs in the soil, you may need to apply grub control to your lawn to ensure that you get rid of them.