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plant louse

noun
1.
2.
any of various related insects having similar habits.
Origin of plant louse
1795-1805
1795-1805
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for plant louse
Historical Examples
  • The aphis, or plant louse, often covers the young shoots of the vine, sucking its juices.

  • Aphid (af'-id) The plant louse, of which there are a great many kinds.

    The Insect Folk Margaret Warner Morley
  • The plant louse gives off a sweetish fluid of which some ants are very fond.

    Agriculture for Beginners Charles William Burkett
  • The four sucking insects discussed are: San José scale, oyster shell scale, blister mite, and aphis or plant louse.

    Apple Growing M. C. Burritt
  • Sometimes house plants, and out-door plants as well, become covered with a small, green insect called the plant louse or aphis.

    The First Book of Farming Charles L. Goodrich
  • They are so small, each one no larger than a plant louse, that you would not think they could do much harm.

    The Insect Folk Margaret Warner Morley
  • Throughout the winter a single chickadee will destroy great numbers of the eggs of the cankerworm moth and of the plant louse.

    Agriculture for Beginners Charles William Burkett
  • The name of the plant louse that infests pear trees is the pear-tree psylla.

    The Insect Folk Margaret Warner Morley
  • The plant louse is very small, but it multiplies with very great rapidity.

    Agriculture for Beginners Charles William Burkett
  • Pull one up and the roots are found alive with a little insect that looks like a plant louse.

British Dictionary definitions for plant louse

plant louse

noun
1.
another name for an aphid
2.
jumping plant louse, any small active cicada-like insect of the homopterous family Psyllidae (or Chermidae), having hind legs adapted for leaping, and feeding on plant juices
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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7
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