Definition of phylloxera
: any of several plant lice (family Phylloxeridae); especially : one (Daktulosphaira vitifoliae synonym Viteus vitifoliae) originally of North America but introduced into Europe and elsewhere that produces galls on the leaves and roots of grape vines and is a serious pest especially of vinifera grapes in wine-producing regions
Origin and Etymology of phylloxera
New Latin, from phyll- + Greek xēros dry
First Known Use: 1880
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