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Home & Garden > Lawn Guide > Manage Pests > Diagnostic Key > Kentucky Bluegrass, Fall

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How to Manage Pests

The UC Guide to Healthy Lawns

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Diagnosing problems on Kentucky bluegrass in fall

From "leaves are watersoaked, spotted, discolored"

What are your symptoms?

Black fruiting structures on leaves Leaves with hourglass shape Fungal threads on leaves Discolored leaves that lie flat
Leaves with reddish-brown to tan lesions; black, spikey fruiting structures present Leaves with 2 reddish bands across leaf in an hourglass shape; cobwebby threads may be seen Leaves watersoaked, wilted, and light brown; fungal threads may be apparent in the early morning 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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