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.
Plant Galls of the Western United States
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Needle-Gall Midge
Paradiplosis tumifex
This midge induces swollen, elliptical, green-beige galls near the base of needles of white fir, balsam fir, and Fraser's fir.