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How to Manage Pests

The UC Guide to Healthy Lawns

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Diagnosing problems on perennial ryegrass in fall

From "irregular spots or patches of brown, thin dying grass"

What are your symptoms?

Feeding damage in lawn Tan and red leaves Blackened leaf blades that lie flat
Feeding on stems, crowns, roots, or leaves Leaves are tan or scorched from the tip down; pink fungal threads can be seen Blackened or reddish blades; leaves lie flat, appear greasy or sticky

None of these symptoms

Statewide IPM Program, Agriculture and Natural Resources, University of California
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