Graphiola leaf spot (Graphiola phoenicis ) on Canary Island date palm (Phoenix canariensis ) - 5475237

Graphiola leaf spot
Graphiola phoenicis (Moug.) Poit.

Host: Canary Island date palm (Phoenix canariensis hort. ex Chabaud)
Descriptor: Sign
Description: Sori of Graphiola phoenicis have erupted through the leaf epidermis. Some of the sori have filaments emerging from them. The mostly brown spots are not a symptom of Graphiola leaf spot, but a symptom of potassium deficiency.
Image type: Field
Image location: , United States

Specimen Information

Specimen in collection: No
Specimen Condition:
Identification Method:

Photographer Information

Name: Monica Elliott
Organization: University of Florida
Country: United States

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Image Number: 5475237

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Creative Commons License    This work is licensed under a Creative Commons Attribution-Noncommercial 3.0 United States License.

Image Use:(?) You must attribute the work in the manner specified (but not in any way that suggests endorsement). You may not use this work for commercial purposes unless permission is granted by the photographer or copyright owner.

Image Citation:(?) Monica Elliott, Symptoms of Palm Diseases and Disorders, USDA APHIS ITP, Bugwood.org

Node Affiliation: USDA APHIS ITP
Image Source: Symptoms of Palm Diseases and Disorders

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Image uploaded on Saturday, August 18, 2012
Image Information last updated on Thursday, October 18, 2012