Yellow Patch

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Yellow Patch
Yellow patch symptom (mature)
  • Pathogen: Rhizoctonia cerealis Van der Hoeven


  • Common Names: Yellow Patch, Cool Temperature Brown Patch, Winter Brown Patch


  • Climatic Zone: Temperate


  • Geographic Distribution: North America (temperate), Europe, Australia


  • Favorable Conditions: Cool wet weather from Fall through Spring


  • Hosts: Creeping bentgrass, velvet bentgrass, colonial bentgrass, Poa annua


  • Symptoms: Circular yellow rings or patches
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