PMRA re-opening evaluation of mancozeb

Wendy McFadden-Smith, ONfruit
August 21, 2018
By Wendy McFadden-Smith, ONfruit
Canada’s Pest Management Regulatory Agency [PMRA] recently announced it is restarting the review process for mancozeb.

All current final decisions and proposals regarding MRLs for mancozeb products will be removed and a new proposal for consultation will be posted.

The PMRA released its evaluation for mancozeb and metiram products in June 2018. According to that decision, all uses of products containing mancozeb (Manzate, Penncozeb, Dithane, Ridomil Gold MZ and Gavel) and metiram (Polyram) were to be cancelled with the exception of foliar applications to potatoes. Representatives from the Ontario Fruit and Vegetable Growers Association and the Canadian Horticulture Council met with PMRA to voice their concerns about the loss of these products and a new review process was agreed upon.

The decision for metiram could not be reversed for legal reasons. This means that as of June 2020, Polyram cannot be used on any crop except potatoes and the label will reflect that change.

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