Any of several small insects of the genus Phylloxera that are related to aphids,especially P. vitifoliae,a widely distributed species very destructive to grape crops.

 
  • 根瘤蚜,葡萄根瘤蚜一种根瘤蚜属的小昆虫,与蚜虫有亲缘关系,尤指广泛分布的、对葡萄类作物极有害的一个品种葡萄根瘤蚜。
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