Wheat Disease Identification Guide - University of Idaho Extension ...

Powdery mildewPowdery mildew causes white lesions on leaves and leafsheaths. Glumes and awns also can be infected whendisease is severe. Fungal growth is largely limited toouter plant surfaces and can be easily wiped away byrubbing a finger across affected areas. Mature lesionsmay have dark, reproductive structures mixed with thewhite, cottony growth of the fungus.Management: Genetic resistance, foliar fungicides.Disease affecting leaves9