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Source: NCSU COOPERATIVE EXTENSION, 7/14/21
The United States (U.S.) Environmental Protection Agency (EPA) renewed the section 18 emergency label, originally obtained in 2016, for the use of Mertect (thiabendazole) postharvest to control black rot (caused by the fungus Ceratocystis fimbriata) in sweetpotatoes. This means the extended label is valid for use in 2021 and will expire on July 2, 2022. Growers planning to export sweetpotatoes to the European Union should avoid using thiabendazole on any sweetpotato roots. While thiabendazole is approved for U.S. domestic use, its use on sweetpotato exports remains limited to a MRL of 0.01ppm. More details regarding the status of MRLs can be found on the BCGlobal website. For more of this story, click here.
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