Trisetacus pseudotsugae
The inducer of this gall is unknown or undescribed.
Family: Eriophyidae | Genus: Trisetacus
Hosts: Pseudotsuga menziesii
Detachable: integral
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Shape: cluster
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Location: bud
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Our ID Notes may contain important tips necessary for distinguishing this gall from similar galls and/or important information about the taxonomic status of this gall inducer.
An Illustrated Guide to Plant Abnormalities Caused by Eriophyid Mites in North America
“
Trisetacus alborum at times causes the formation of clusters of stunted needles on ... pines ... Similar injury is caused on Douglas fir by T. pseudotsugae. The mites were found in Oregon infesting nursery seedlings, in which the growing tips form clusters of aborted needles. The infested seedlings are stunted and deformed.
”- Hartford Keifer,Edward Baker,Tokuwo Kono,Mercedes Delfinado,William Styer: (1982) An Illustrated Guide to Plant Abnormalities Caused by Eriophyid Mites in North America©
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