Sod webworms are the larvae of lawn moths. These pests eat grass and dig tunnels in the soil. Their tunnels are lined with silk similar to a spider's web, which gives the larvae their name. The grass above their tunnels browns and dies when the webworms come out of the tunnels to eat the grass. Significant infestations of sod webworms can kill large patches of your lawn; killing the webworms will help to save your lawn.
Things You'll Need
- Liquid dish soap
- Turfgrass pesticide for sod webworms
- Lawn mower
Water the affected area to a depth of 1/2 inch two days before applying chemical agents.
Follow the label instructions on your pest control product, and apply it only to the areas of damaged lawn.
Water the pesticide into your lawn with 1/2 inch of water.
Mow the lawn to 1 1/2 inches high.
Keep your lawn watered to a depth of 1/2 inch for one week to improve the penetration of the pesticide.