Abstract

Leaf diseases caused by Mastigosporium rubicosum (cause of eyespot), Rhynchosporium orthosporum (cause of scald), and Cercosporidium graminis (cause of leaf streak) were identified on orchardgrass (Dactylis glomerata) grown for seed. Fungicides (captafol, chlorothalonil, and propiconazole) were applied up to three times per year to plants in different stages of growth for 5 yr (1984-1988). Leaf area damaged by diseases (primarily scald) ranged from moderate to severe depending on the yearly variation in precipitation

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