The life-cycle of the Sod Webworm:
- Winter- No to little activity while larvae is in immature silk lined chambers.
- Spring- The weather heats up and the larvae matures as they eat grass and turf, which happens mostly during the night. The females produce approx 60 eggs per day for two weeks. The eggs hatch one week later.
- Late Summer and Fall- Once the weather gets hot, the hatched eggs will feed on the grass for approx 1-2 months before becoming an adult, and the cycle continues two more times before the winter freeze.
If you don't want your lawn looking like a checker board, get this issue resolved immediately by proper watering, fertilizing, aerating, and having the correct pest control products applied to the surviving areas or your yard.