Phylloxera

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“Pylloxera is a genus of insects allied to the Aphis and Coccus families. The Phylloxeridæ attach themselves to various plants, on the juice of which they feed, and which they often injure or destroy. P. vastatrix is the name given to an insect of this family, which, since 1865, has committed great devastation in the vineyards of France. Great numbers of this insect appear on the roots of the vine, where they produce galls, and their punctures are so numerous and incessant that the roots can no longer supply nutriment to the plant, which fades and dies. There is a form which lives on the leaves, also producing galls."—(Charles Leonard-Stuart, 1911)

Source

Everybody's Cyclopedia (New York, NY: Syndicate Publishing Company, 1912)

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