Do Sod Webworms Kill Grass

Sod webworms are the larvae of lawn moths. They live in the root level of your lawn and munch up the grass leaves. They can kill an entire lawn in a matter of days. When the weather turns hot, patches of your grass may start to turn brown.

What do you do with sod webworms?

The natural, soil dwelling bacterium Bacillus thuringiensis or Bt-kurstaki is particularly effective on webworms. Use the easy-to-apply liquid spray (1 Tbsp/ gallon) to hit pests and protect your turf at the first signs of damage. Repeat at 5-7 day intervals, if needed.

When should I treat my lawn for sod webworms?

Control: Sod webworms are night feeders. Maximize your impact by treating during late afternoon or early evening, right before these pests come out to feed.