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apple sucker

American  

noun

  1. a small homopterous insect, Psyllia mali, originally of Europe, that is a serious pest of apple crops.

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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.