Sod Webworm

Definition:

Sod Webworm

A species of moth larvae that feed on most turfgrass, but tend to prefer Kentucky bluegrass, perennial ryegrass and fine fescues, as well as sunny areas. Damage usually begins in spring but is more extensive in the warm summer months of July and August. Larvae build tunnels underneath the soil or in thatch, which makes dethatching and lawn aeration two common practices for reducing sod webworm infestations.

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