Powdery Mildrew

Erysiphe graminis

Symptoms


Grayish-white powdery growth resembling flour appears on leaf. Older blades are more susceptible and as disease progresses, leaves turn yellow, wither and die. As disease progresses, leaves turn yellow, wither and die.

Turfgrasses Affected

Fescues, Kentucky bluegrass

Occurrence

Late spring through early summer

Control Options

  • Prune tree branches to reduce shade
  • Increase air circulation
  • Raise mowing height

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