A microscopic louse that eats Vitis vinifera roots and kills vines. It first spread throughout Europe in the 1880s and devastated the majority of the world’s vineyards except for a few places with sandy soils (the louse cannot thrive in sand). The only solution was to graft Vitis vinifera vines onto other vine species’ rootstocks, including Vitis aestivalis, Vitis riparia, Vitis rupestris, and Vitis berlandieri (all native American species). To date, there is still no cure for grape phylloxera.

Wine Glossary    Viticulture Terms    Phylloxera

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