Microscopic-mite

Guides

• Aceria negundi

  box elder pouch gall mite

  Aceria negundi, commonly known as the box elder pouch gall mite, is an eriophyid mite that specializes on box elder (Acer negundo). This microscopic arachnid induces characteristic pouch galls on its host plant. Like other members of the Eriophyidae, it has a worm-like body with four legs and is among the smallest plant-parasitic mites, measuring less than 0.2 mm in length. The species has been observed across a broad geographic range with over 4,700 documented observations.

  eriophyid-mitegall-miteplant-parasiteAcer-negundopouch-gallAcariEriophyidaeNorth-Americamicroscopic-mitefour-legged-mite

• Aceria parulmi

  Elm Finger Gall Mite

  Aceria parulmi is an eriophyid mite species commonly known as the Elm Finger Gall Mite. It is a plant-parasitic mite that induces distinctive gall-like structures on elm leaves. Like other members of the genus Aceria, it has a worm-like, elongated body with four legs and is extremely small, typically less than 0.2 mm in length. The mite is specialized to feed on elm species (Ulmus), causing characteristic finger-shaped galls on leaf surfaces.

  gall-miteeriophyidelm-pestplant-parasiteUlmusmicroscopic-mitefour-legged-miteacarine-gallsurban-forestry-pestornamental-pest