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Gray Leaf Spot of Perennial Ryegrass

P. F. Harmon and R. Latin

December 2003

Diagnostics

Diagnosis of gray leaf spot (caused by Magnaporthe oryzae) of perennial ryegrass (Lolium perenne) is discussed in detail, including the disease's symptoms and signs, host range, taxonomy, and geographic distribution, as well as methods of isolation, identification, and storage of M. oryzae.

doi:10.1094/PHP-2003-1223-01-DG

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