Douglas-fir dwarf mistletoe (Arceuthobium douglasii ) on Douglas-fir (Pseudotsuga menziesii ) - 1241489

Douglas-fir dwarf mistletoe
Arceuthobium douglasii Englem.

Host: Douglas-fir (Pseudotsuga menziesii (Mirbel) Franco)
Descriptor: Damage
Description: Witches brooms often indicate dwarf mistletoe infection. Brooms result from a proliferation of small twigs on a branch. Douglas-fir is a species which generally form large, distinct brooms in response to dwarf mistletoe infections. Infection tend to be most severe in the lower portions of the crowns.
Image location: United States

Photographer Information

Name: Jane Taylor
Organization: USDA Forest Service
Country: United States

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Image Number: 1241489

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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:(?) Jane Taylor, USDA Forest Service, Bugwood.org

Node Affiliation: University of Georgia

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Image uploaded on Wednesday, April 14, 2004
Image Information last updated on Monday, May 17, 2004