a tiny homopterous insect, Paratrioza cockerelli, occurring in some areas of the western U.S., western Canada, and Mexico: a serious pest to potatoes, tomatoes, eggplants, and peppers, the nymphs acting as vectors in the transmission of psyllid yellows.
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Origin of potato psyllid
First recorded in 1940–45
Also called tomato psyllid.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019