Trisetacus campnodus
The inducer of this gall is unknown or undescribed.
Family: Eriophyidae | Genus: Trisetacus
Hosts: Pinus contorta / Pinus sylvestris
Detachable: integral
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Location: upper leaf, lower leaf
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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 campnodus causes yellowing and stunting of Scotch pine needles. The mites colonize the needle base beneath the sheath. This area becomes necrotic and brown, at times calloused, and eventually the needles turn yellow and stunted, often distorted. Infested pine trees are chlorotic and generally appear unthrifty. This mite species was collected in Washington State.
[pg. 90]
”- 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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