Eriophyidae

Trisetacus

Juniperus scopulorum

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Trisetacus neoquadrisetus

The mites were found in berries that were characteristically deformed, shriveled, and dark ...

For identity of those that infest juniper and cedar berries in North America, we suggest that specimens should be sent to specialists for proper determination. The characteristic symptoms of injury by [Trisetacus batonrougei, T. neoquadrisetus, and T. quadrisetus] appear similar to one another

[photos pg. 82]

An Illustrated Guide to Plant Abnormalities Caused by Eriophyid Mites in North America

Trisetacus neoquadrisetus
*Trisetacus quadrisetus

Relationship: In deformed berries; forms large colonies in the berries, causing distortion and shriveling and destroy the seeds

Host: Juniperus scopulorum

Distr: British Columbia, Montana

Amrine Catalog