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First Report of Powdery Mildew of Carrot and Parsley Caused by Erysiphe heraclei in Washington State

D. A. Glawe, G. Q. Pelter, and L. J. du Toit

January 2005


From 2002 to 2004, the anamorph of Erysiphe heraclei DC was observed on plants from processing carrot fields in central WA. The teleomorph, not previously reported in Washington, was discovered in a processing carrot field in Grant Co. A fungus matching the description of the anamorph of E. heraclei also was found attacking parsley in a home garden in Grant Co. This report documents the occurrence of E. heraclei and its teleomorph on carrot in WA and the occurrence of E. heraclei on parsley in WA.


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