Acalitus ferrugineum
Acalitus ferrugineum is a species of eriophyid mite.[1] This microscopic organism induces erineum galls on the leaves of American beech, and is known from the United States and Canada.[2]
| Acalitus ferrugineum | |
|---|---|
 | |
| Leaves of Fagus grandifolia exhibiting galls caused by the mite Acalitus ferrugineum | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Family: | Eriophyidae |
| Genus: | Acalitus |
| Species: | A. ferrugineum |
| Binomial name | |
| Acalitus ferrugineum Farlow & Hagen, 1885 | |
Description of the gall
Leaves affected by this species of mite will present with pale or light yellow erineum patches which progress into a reddish-brown later in the season. These galls are not known to have any consequences on the health of the tree beyond aesthetics.[3]
References
- "Acalitus ferrugineum". iNaturalist.ca. Retrieved 2021-08-28.
- Xue, Xiao-Feng; Wang, Zhen; Song, Zi-Wei; Hong, Xiao-Yue (2009-10-08). "Eriophyoid mites on Fagaceae with descriptions of seven new genera and eleven new species (Acari: Eriophyoidea)". Zootaxa. 2253 (1): 1–95. doi:10.11646/zootaxa.2253.1.1. ISSN 1175-5334.
- "Insect and Disease Observations — June 2020" (PDF). Vermont Department of Forests, Parks & Recreation. June 2020. Archived (PDF) from the original on 2020-09-25.
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