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First Report of Downy Mildew, Caused by Peronospora effusa, on Spinach (Spinacia oleracea) in North Carolina

J. R. Standish, S. Sharpe, S. Butler, L. M. Quesada-Ocampo, and I. Meadows

June 2020


In this brief, we report the first observation of downy mildew caused by Peronospora effusa on spinach grown in North Carolina. To this end, we characterized the morphology of sporangiophores and sporangia, and compared the internal transcribed spacer region and cytochrome oxidase I sequences to confirm pathogen identity.


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