aster yellows

plural noun

Definition of aster yellows

: a widespread disease affecting more than 40 families of plants, characterized especially by yellowing and stunting, and caused by a phytoplasma transmitted by leafhoppers

First Known Use of aster yellows

circa 1907, in the meaning defined above

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The first known use of aster yellows was circa 1907

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to make a temporary encampment

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