Phylloxera insects on a vine root

Phylloxera insects on a vine root

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Caption: Grape phylloxera insects (Daktulosphaira vitifoliae) covering the roots of a grape vine (Vitis sp.). This pest lives on the roots of grape vines, where it sucks the sap from the plant, weakening and sometimes killing it. It is native to North America, and was accidentally introduced to Europe in 1860. European vines had no defence against the pest, and the insect devastated European vines in the second half of the 19th century. The plague was finally brought under control after the development of grafting techniques, in which European vines are grafted onto the roots of phylloxera-resistant American vines. Photographed in California, USA.

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Keywords: agricultural, agriculture, american, animal, aphid, aphid-like, aphids, biological, biology, bug, california, close-up, commercial, crop, daktulosphaira vitifoliae, farming, fauna, grape phylloxera, grape vine, insect, insects, macrophotograph, many, multiple, nature, pathological, pathology, pest, phylloxera, plague, plant, root, roots, united states, us, usa, vine, vines, viticulture, vitis sp., wildlife, wine, zoological, zoology

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