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California fan palm, Washingtonia filifera, with petiole blight, caused by Serenomyces spp. An infected petiole typically has a reddish brown streak running its length.

In the California fan palm, <i>Washingtonia filifera</i>, the petiole infected with petiole blight typically has a reddish brown streak running its length. culture, disorder, water stress, disease, pink rot; Bellflower, Los Angeles Co., CA Credit: Donald R. Hodel, UCCE Los Angeles County
California fan palm, Washingtonia filifera, with petiole blight, caused by Serenomyces spp. An infected petiole typically has a reddish brown streak running its length. Credit: Donald R. Hodel, UCCE Los Angeles County
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