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aster yellows

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noun Plant Pathology.
a dwarfing and yellowing of asters and various other plants, caused by a mycoplasma transmitted by a leafhopper.
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Origin of aster yellows

First recorded in 1920–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use aster yellows in a sentence

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