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First North American Record of Powdery Mildew of Cleome hassleriana Caused by Leveillula taurica

R. Sampangi, D. A. Glawe, and S. K. Mohan

February 2007

Brief

This report documents the first record of Leveillula taurica on a species of Cleome (spiderflower) in North America. The introduced plant pathogen Leveillula taurica (Lév.) G. Arnaud (anamorph = Oidiopsis sicula Scalia) occurs on a range of hosts in the Pacific Northwest (PNW), including onion and was identified infecting Cleome hassleriana Chod. (common name: pink queen, family: Capparaceae).

doi:10.1094/PHP-2007-0219-02-BR

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