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Canada proposes to re-evaluate thiophanate-methylqrcode

Jul. 5, 2019

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Jul. 5, 2019
Health Canada is consulting Canadians on its proposed re-evaluation decision for thiophanate-methyl. Thiophanate-methyl is a fungicide that controls a broad spectrum of diseases on a wide variety of crops and use sites in Canada, including greenhouse non-food crops, terrestrial food crops, mushrooms, outdoor ornamentals, turf, and seed treatment.
 
Based on the outcome of the risk assessment, Health Canada proposes continued registration for many uses of thiophanate-methyl with mitigation measures including:
 
additional personal protective equipment, engineering controls, and limits on amount of product handled per day by workers
new or revised restricted-entry intervals, limits on the number of applications per season, and limiting greenhouse cut flower applications to soil drench only
spray buffer zones to protect aquatic habitats
additional label statements that:
    o inform users that thiophanate-methyl is toxic to bees, earthworms, birds, small- and medium-sized mammals, and aquatic organisms
    o advise avoiding application during periods of bloom for crops that are attractive to pollinators
    o inform not to discharge thiophanate-methyl-contaminated effluent from greenhouses and mushroom houses into aquatic environments
    o inform users how to reduce the potential for runoff.

However, Health Canada is proposing to cancel the following uses of thiophanate-methyl, as risks to human health have not shown to be acceptable:
Aerial application using wettable powder products
Wettable powder products on all turf uses, white bean, sugarbeet, aspen and poplar
All turf uses except on golf courses and sod farms for the liquid and water-soluble packaging products
Greenhouse tobacco seedlings (foliar spray and foliar drench applications)
Greenhouse cut flowers (foliar application)
Outdoor cut flowers
Apples and pears at the high application rate
Peach, nectarine, plum, prune, cherry
Commercial seed treatment of bean seeds using wettable powder products
On-farm dry application to bean seeds using wettable powder products
Potato seed piece treatment for all product formulations.

This consultation is open for comment from 28 June 2019 to 26 September 2019 (90 calendar days).
 

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