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Pythium Root Rot of Flue-Cured Tobacco Seedlings Produced in Greenhouses: Factors Associated with its Occurrence and Chemical Control

W. Gutiérrez, T. Melton, and A. Mila

September 2012


Pythium root rot is an economically important disease of tobacco seedlings produced in greenhouses. In a survey conducted in 1998 and 1999, fivePythium species were found to cause Pythium root rot symptoms in tobacco seedlings. In pathogenicity studies the most aggressive species were Pythium volutum and P. myriotylum, although these were not the most frequently isolated species. We conducted studies with potting media from different commercial sources.


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