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Survey of Pythium Isolates for Resistance to Subdue (metalaxyl)

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Subdue (metalaxyl) has long been considered the best fungicide to control diseases caused by Pythium and Phytophthora; however, resistance to this fungicide has become common. See results (pdf above) from a survey conducted in 1998.

To avoid fungicide resistance, rotate among chemicals in different fungicide groups. See "Root Diseases of Greenhouse Crops" and New England Greenhouse Floriculture Guide for more information.

Commercial Horticulture
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