powdery mildew (Sphaerotheca phytoptophila ) on hackberry (Celtis spp. ) - 5366438

powdery mildew
Sphaerotheca phytoptophila Kellerm. & Swingle

Host: hackberry (Celtis spp. L.)
Descriptor: Symptoms
Description: Witches' brooms in hackberry trees afflicted with powdery mildew (Sphaerotheca phytotophila).
Image type: Field
Image location: United States

Specimen Information

Specimen in collection: No
Specimen Condition:
Identification Method:

Photographer Information

Name: Mike Schomaker
Organization: Colorado State Forest Service
Country: United States

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Image Number: 5366438

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Image Citation:(?) Mike Schomaker, Colorado State Forest Service, Bugwood.org

Node Affiliation: Colorado State University

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Image uploaded on Thursday, February 14, 2008
Image Information last updated on Monday, April 14, 2008