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.
Gallformers ID Notes
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A gall covered with hairs on the buds of Ageratina altissima. The gall is thin-walled, crinkly and green. They contain two to three small white cocoons containing the midge larva. Observed in Ohio in September.
Unless noted otherwise in the ID Notes, observations of this gall are collected in the Observation Field Gallformers Code with value a-altissima-hairy-bud-gall on iNaturalist. You can view them here: