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Home & Garden > Lawn Guide > Manage Pests > Diagnostic Key > Perennial Ryegrass, Winter

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How to Manage Pests

The UC Guide to Healthy Lawns

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Diagnosing problems on perennial ryegrass in winter

From "mushrooms or other fruiting structures; gooey masses"

What are your symptoms?

Mushrooms in turf Ring of mushrooms in turf
Mushrooms, fruiting structures, or gooey mass in no particular pattern Ring of mushrooms with or without dark green patch of turf or ring of dead grass

None of these symptoms

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