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Canary Island date palm, Phoenix canariensis, with petiole and rachis blight, caused by Cocoicola spp.

In this Canary Island date palm with petiole and rachis blight, caused by <i>Cocoicola</i> spp., pinnae typically die on one side of leaf blade first, while those on the opposing side remain green. Note the dark streaking along the rachis. culture, disease, petiole/rachis blight; Newport Beach, Orange Co., CA Credit: Donald R. Hodel, UCCE Los Angeles County
Canary Island date palm, Phoenix canariensis, with petiole and rachis blight, caused by Cocoicola spp. Credit: Donald R. Hodel, UCCE Los Angeles County
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