Colomerus vitis
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Author(s): Lesley Ingram
Source: IPM Images
Colomerus vitis (Pagenstecher, 1857) - (grape erineum mite)
This mite is a widespread pest of grapevine which causes characteristic swellings (erinea) and rolling of the leaves as well as damage of the buds. Leaf rolling and bud damage have been attributed to different strains of the mite (possibly even different species) compared to the common erinea causing form. Heavy infestations can result in delayed development of the vines and a reduction in grape production. For control, removal of the infested leaves and sulfur preparations are recommended. An erinium is a gall-like swelling of the leaf caused by the feeding of the mite. It has a whitish, feltlike coating on the lower side, caused by the development of abundant long trichomes.
| Vernacular names | |
|---|---|
| • Deutsch: | Rebenblattgallmilbe Rebenblattfilzmilbe |
| • English: | grape erineum mite grape bud mite |
| • Español: | arinosis de la vid |
| • Français: | acarien de l'érinose et de la vigne eriophyide de la vigne |
| • Português: | ácaro-da-erinose-da-videira |
The mite overwinters in the buds and moves to the young leaves in spring. It develops from egg through the protonymph and deutonymph stages to the adult stage within 3-4 weeks. There are up to 7 generations per year. The mite is worm-like with 2 pairs of legs and about 0.15-0.2 mm long.
Synonyms:
Eriophyes vitis
