phylloxera > define

noun

• Type genus of the Phylloxeridae: plant lice.
  • synonyms: genus Phylloxera

• (n.) A small hemipterous insect (Phylloxera vastatrix) allied to the aphids. It attacks the roots and leaves of the grapevine, doing great damage, especially in Europe.
• (n.) The diseased condition of a vine caused by the insect just described.