Pest Management Regulatory Agency
18 July 2013
ISSN: 1925-0843 (PDF version)
Catalogue number: H113-24/2013-51E-PDF (PDF version)
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Under the authority of the
Pest Control Products Act, Health Canada's Pest Management Regulatory Agency (PMRA) is proposing to establish a maximum residue limit (MRL) for clodinafop-propargyl on wheat to permit the import and sale of foods containing such residues.
Clodinafop-propargyl is a herbicide currently registered in Canada for use on wheat.
The PMRA must determine the quantity of residues that are likely to remain in or on the imported commodities when clodinafop-propargyl is used according to label directions in the exporting country, and that such residues will not be a concern to human health. This quantity is then legally established as an MRL on the corresponding imported commodity. An MRL applies to the identified raw agricultural food commodity as well as to any processed food product that contains it, except where separate MRLs are specified for the raw agricultural food commodity and a processed product made from it.
Consultation on the proposed MRL for clodinafop-propargyl is being conducted via this document (see Next Steps). Details regarding the proposed MRL on imported commodities can be found in Appendix I.
To comply with Canada's international trade obligations, consultation on the proposed MRL is also being conducted internationally by notifying the
World Trade Organization, as coordinated by the
Standards Council of Canada.
The proposed MRL in Canada in or on food, to replace the MRL already established for clodinafop-propargyl is as follows.
| Common Name | Residue Definition | MRL (ppmTable 1 footnote 1) | Food Commodity |
|---|---|---|---|
Table 1 footnotes
|
|||
| Clodinafop-propargyl | 2-propynyl (2R)-2-[4-[(5-chloro-3-fluoro-2-pyridinyl)oxy]phenoxy]propanoate, including the metabolite (2R)-2-[4-[(5-chloro-3-fluoro-2-pyridinyl)oxy]phenoxy]propanoic acid | 0.02 | Wheat grainTable 1 footnote 2 |
MRLs established in Canada may be found using the Maximum Residue Limit Database on the Maximum Residue Limits for Pesticides webpage. The database allows users to search for pesticides(s) or for food commodity(ies).
The MRL proposed for clodinafop-propargyl in Canada is the same as corresponding tolerance to be established in the United States. Please note that the American tolerance of 0.1 ppm for wheat grain currently posted on the
Electronic Code of Federal Regulations, 40 CFR Part 180, is to be revised to 0.02 ppm, and will be consistent with the proposed Canadian MRL proposed herein. Currently, there are no Codex MRLsFootnote 1 listed for clodinafop-propargyl in or on any commodity on the Codex Alimentarius
Pesticide Residues in Food webpage.
The PMRA invites the public to submit written comments on the proposed MRL for clodinafop-propargyl up to 75 days from the date of publication of this document. Please forward your comments to Publications. The PMRA will consider all comments received before making a final decision on the proposed MRL. Comments received will be addressed in a separate document linked to this proposed MRL. The established MRL will be legally in effect as of the date it is entered into the Maximum Residue Limit Database.
Residue data for clodinafop-propargyl on wheat were submitted to support the reduction of the maximum residue limit (MRL) for this active in/on wheat grain. Previously reviewed residue data for clodinafop-propargyl on wheat were also reassessed in the framework of this submission to support the new MRL.
The recommendation for the MRL for clodinafop-propargyl was based on the residues observed in wheat commodities treated according to label directions from submitted field trials. An MRL to cover residues of clodinafop-propargyl and the metabolite CGA 193469 in/on wheat grain is proposed as shown in Table A1. Residues in processed commodities not listed in Table 1A are covered under the recommended MRL for the raw agricultural commodity (RAC).
| Commodity | Application Method/ Total Application Rate(g a.i./ha) | PHI (days) | Residues (ppm) | Currently Established MRL (ppm) | Recommended MRL (ppm) | |
|---|---|---|---|---|---|---|
| Min | Max | |||||
Table 2 footnotes
|
||||||
| Wheat grain | Ground application/70 | 60-110 | No quantifiable residues | 0.1 | 0.02Table 2 footnote 1 | |
Following the review of all available data, an MRL as proposed in Table 1A is recommended to cover residues of clodinafop-propargyl and the metabolite CGA 193469 in/on wheat grain. Residues of clodinafop-propargyl and CGA 193469 in this commodity at the proposed MRL will not pose an unacceptable health risk to any segment of the population, including infants, children, adults and seniors.
The Codex Alimentarius Commission is an international organization under the auspices of the United Nations that develops international food standards, including MRLs.