Occurrence and Parasitism of Aleurodiscus Amorphus in North America

Author: Hansbrough, J. R.1

Source: Journal of Forestry, Volume 32, Number 4, 1 April 1934 , pp. 452-458(7)

Publisher: Society of American Foresters

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Abstract:

In December, 1930, Mr. Hansbrough found an area in the Mount Hood National Forest, Oregon, where the fungus, Aleurodiscus amorphus (Pers.) Rabenh, 2 was associated with a definite canker (Figure 1) on a high percentage of the stand of suppressed lowland white fir (Abies grandis Lindl.). The infection was so uniformly severe and the cankers were so conspicuous that a brief study of the occurrence and apparent parasitism of the fungus was considered advisable.

Document Type: Journal article

Affiliations: 1: Assistant Pathologist, Bureau of Plant Industry

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