Consultation on Thiophanate-Methyl and Its Associated End-use Products, Proposed Re evaluation Decision PRVD2019-07
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. A list of thiophanate-methyl products can be found in Appendix I of the consultation document, or through the online Pesticide Label Search at Canada.ca.
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:
- inform users that thiophanate-methyl is toxic to bees, earthworms, birds, small- and medium-sized mammals, and aquatic organisms
- advise avoiding application during periods of bloom for crops that are attractive to pollinators
- inform not to discharge thiophanate-methyl-contaminated effluent from greenhouses and mushroom houses into aquatic environments
- 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.
For more information on the proposed decision open the “Proposed Re-evaluation Decision”.
How to Get Involved
This consultation is open for comment from 28 June 2019 to 26 September 2019 (90 calendar days).
To comment on PRVD2019-07:
- Step 1: Request the full consultation document to read the Science Evaluation that is the basis of this proposed regulatory decision.
- Step 2: Submit comments to the PMRA Publications Section.
All comments received will be considered. A final re-evaluation decision will consider additional scientific information provided during the public comment period.
Please refer to the document title (for example: PRVD2019-07, Thiophanate-Methyl and Its Associated End-use Products) when providing comments.
Reporting to Canadians
Health Canada will make the results of this consultation available on this website. Once the decision is finalized, the PMRA will post a Re-evaluation Decision on the Pesticides and Pest Management Reports and Publications portion of Canada.ca.
If you have any questions, contact the Pest Management Information Service.
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