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General information about Colomerus vitis (ERPHVI). Eriophyes vitis is a mite species in the genus Eriophyes infecting grape leaves( Vitis vinifera). (Source: Wikipedia. Photo: (c) Ferran Turmo Gort, some rights. Exp Appl Acarol. Apr;74(4) doi: /sz. Epub Mar Impact of the erineum strain of Colomerus vitis (Acari.

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File:Colomerus vitis (Eriophyes vitis), Arnhem, the Netherlands – 2.jpg

Knowledge Bank home Change location. Go to distribution map Three strains of C.

The bud strain causes deformation of the primordial bud cluster, distortion of the basal leaves, stunting of the main growing coolmerus of the buds and often death of the overwintering buds. Highest infestation and therefore most injury occurs in the first 10 basal buds.


Eriophyes vitis – Wikipedia

Destruction of buds results in fewer grape bunches. Diagnostic symptoms of injury by the bud strain of C. The erineum strain of C.

On the lower surface the galls are filled with enlarged leaf hairs which are initially white but later turn brown and felt-like. The blistered areas are incapable of resuming normal development which results in disruption or coalescence of venation, irregular leaf margins and generally mishapen leaves at maturity.

If the infestation is severe, leaves may be reduced in size and distorted so that the bunches of grapes are unduly exposed to the sun. Occasionally, severe infestations can result in some leaf drop.

Galling is most severe when there is rapid leaf growth during warm weather and the entire leaf can become covered. New blisters do not generally form on fully expanded leaves. The leaf curling strain of C.

The leaf curling strain causes the leaf edge to curl down and inwards until leaves are bowed up dorsally.


Chemical Control Due to the variable regulations around de- registration of vitjs, we are for the moment not including any specific chemical control recommendations. For further information, we recommend you visit the following resources: EU pesticides database www. The generalist phytoseiids, Typhlodromus doreenae, Amblyseius victoriensis, Phytoseius fotheringhamiae and Typhlodromus dossei, effectively suppress C.

The bud strain of C. However, colokerus many major grape producing areas for example, in the USA and Europe it generally has a minor pest status behind the more significant tetranychid mite pests which are targeted by vignerons first. The chemical control strategies employed for tetranychids usually control C.

Very high densities of the erineum strain can occur before any economic impact is recorded.