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yellow leaf blotch

noun
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Definition of yellow leaf blotch

: a disease of alfalfa caused by a fungus (Pyrenopeziza medicaginis) and characterized by bright yellow or orange spots with small black dots chiefly on the undersides of the leaves

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“Yellow leaf blotch.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/yellow%20leaf%20blotch. Accessed 1 Oct. 2020.

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