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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Occurrence of the bud mite strain of Eriophyes vitis Pgst.

Colomerus vitis

Acaricides in common usage applied in the spring the only season when the pest is exposedalong with the pruning regime, may reduce injury. Grapevine Vitis vinifera L. On the lower surface the galls are filled with enlarged leaf hairs which are initially white but later turn brown and felt-like. Occasionally, severe infestations can result in some leaf drop. The featherclaw is five-rayed.

The mite lives on the lower side of grape leaves and in the buds, overwintering there and in bark crevices.

Most infested plants produced shorter canes and their lengths appeared to have a strong negative correlation with the highest mite density in four cultivars; canes of Sahebi Uroomie did not appear affected.

By using this site, you agree to the Terms of Use and Privacy Policy. GEM was applied at five density levels to each of five cultivars, i. Close Find out more.

Eriophyidae on responses of local grapevine cultivars. The highest mite density treatment displayed a strong correlation with weight positive correlation and size negative correlation of the leaves of four cultivars; leaves of Sahebi Uroomie appeared to be less affected. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of coolmerus original file.

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Sources of resistance to the erineum strain of Colomerus vitis Acari: At the highest mite density, canes of Khalili Bovanat and Sahebi Colomrrus displayed the most and the least shortening effects, respectively.

Retrieved from ” https: The blistered colomegus are incapable of resuming normal development which results in disruption or coalescence of coolomerus, irregular leaf margins and generally mishapen leaves at maturity.

Reproduction is by arrhenotoky ; spermatophores are deposited by males on the leaves and taken up by the females. Diseases and disorders of Vitis Colomerus vitis Galls. Varieties whose buds are very tightly compressed can accommodate fewer mites colomerjs are therefore relatively undamaged by the pest.

If you would like to, you can learn more about the cookies we use. Colomerus vitis Eriophyes colimerusArnhem, the Netherlands Nederlands: New blisters do not generally form on fully expanded leaves. View all coordinates using: The bud strain of C.

Proceedings XI Congress of Entomology 2: Data were analyzed with a two-way ANOVA followed by Tukey’s test to separate means among treatment levels and cultivars. The patches later become brownish and may cover the entire leaf, leading to its premature drop.

Chemical Control Due to the variable regulations around de- registration of pesticides, we are for the moment not including any specific chemical control recommendations.

For further information, we recommend you visit the following colomerux A pruning technique for saving vineyards severely infested by the grape bud mite Colomerus vitis Pagenstecher Eriophyidae.

The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Eriophyes vitis – Wikipedia

Systematic and Applied Acarology Continuing to use www. The generalist phytoseiids, Typhlodromus doreenae, Amblyseius victoriensis, Phytoseius fotheringhamiae and Typhlodromus dossei, effectively suppress C. The erineum strain of C. You can copy, modify, colommerus and perform the colomeruus, even for commercial purposes, all without asking permission. Finally, in heavy infestations the leaves curl, plant growth is retarded and yield is affected. 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.

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Very high densities of the erineum strain can occur before any economic impact is recorded. The reduced internode length was weak in infested plants. Knowledge Bank home Change location. Like most websites we use cookies. Dispersal between plants is by winds, insects and especially by transferring propagation canes from infested stock to new areas.

They may also be carried on the growing shoot from the bud, settling first in the basal buds, their numbers gradually diminishing in the more distant buds. From Wikimedia Commons, the free media repository. In the spring the mites move onto leaves as soon as they unfold and feed there, forming large colonies within the protective erineum.

Description Colomerus vitis Eriophyes vitisArnhem, the Netherlands – 2. Also mite density on leaves and in buds was assessed. The percentage of leaves with erinea, as well as the number of erinea per leaves and the diameter of erinea increased along with the mite population density.