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Pests

Spider Mites of Grapevine

Vitis vinifera L.

A group of acariform pests infesting grapevines, among which Tetranychus urticae is dominant. These pests suck the cell contents, causing specific leaf discoloration, impaired photosynthesis, and reduced crop quality.

In the reference 5 varieties crop Common grape vine, where this is mentioned in the description.

The two-spotted spider mite Tetranychus urticae is the most common species on grapevines; however, other species such as Schizotetranychus viticola, Panonychus ulmi, Eotetranychus carpini, Eotetranychus willamettei, and Tetranychus pacificus can also cause damage.

Damage appears as light-colored spots that eventually turn bronze on white grape varieties or reddish on dark-colored ones. Heavy infestations lead to leaf curling, premature defoliation, reduced berry sugar content, and poor cane maturation.

There are no genetically resistant grapevine varieties against spider mites, and observed differences in susceptibility are linked to morphological leaf characteristics, such as pubescence. Webbing on the underside of the leaf is characteristic of most species but may be absent in certain representatives, such as Panonychus ulmi.

General information about the subject — on the page Spider mite.

Sources8

Varieties of Common grape vine mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.