Proposed Maximum Residue Limit PMRL2014-67, Fluazinam

Pest Management Regulatory Agency
12 September 2014
ISSN: 1925-0843 (PDF version)
Catalogue number: H113-24/2014-67E-PDF (PDF version)

Under the authority of the  Pest Control Products Act, Health Canada's Pest Management Regulatory Agency (PMRA) has concluded that the addition of new uses on the bulb onion subgroup (Crop Subgroup 3-07A) to the product label of Allegro 500F Agricultural Fungicide, containing technical grade fluazinam, is acceptable. The specific uses approved in Canada are detailed on the label of Allegro 500F Agricultural Fungicide, Pest Control Products Act Registration Number 27517.

The evaluation of this fluazinam application indicated that the end-use product has merit and value and the human health and environmental risks associated with the new uses are acceptable.

Before registering a pesticide for food use in Canada, the PMRA must determine the quantity of residues that are likely to remain in or on the food when the pesticide is used according to label directions and that such residues will not be a concern to human health. This quantity is then legally established as a maximum residue limit (MRL). 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 commodity and a processed product made from it.

Consultation on the proposed MRLs for fluazinam is being conducted via this document (see Next Steps, the last section of this document). A summary of the field trial data used to support the proposed MRLs can be found in Appendix I.

To comply with Canada's international trade obligations, consultation on the proposed MRLs is also being conducted internationally by notifying the  World Trade Organization, as coordinated by the  Standards Council of Canada.

The proposed MRLs, to be added to the MRLs already established for fluazinam, are as follows.

Table 1 - Proposed Maximum Residue Limits for Fluazinam
Common Name Residue Definition MRL (ppm)Table 1, footnote 1 Food Commodity

Table 1 Footnotes

Table 1, footnote 1

ppm = parts per million

Return to table 1 footnote 1 referrer

Fluazinam 3-chloro-N-[3-chloro-2,6-dinitro-4-(trifluoromethyl)phenyl]-5-(trifluoromethyl)-2-pyridinamine 0.2 Bulb onion subgroup (Crop Subgroup 3-07A)

MRLs are proposed for each commodity included in the listed crop groupings in accordance with the Residue Chemistry Crop Groups webpage in the Pesticides and Pest Management section of Health Canada's website.

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 established MRLs, regulated under the Pest Control Products Act, both for pesticides or for food commodities.

International Situation and Trade Implications

The MRLs proposed for fluazinam in Canada are the same as corresponding American tolerances as listed in the  Electronic Code of Federal Regulations, 40 CFR Part 180, by pesticide. Currently, there are no Codex MRLsFootnote 1 listed for fluazinam in or on any commodity on the Codex Alimentarius  Pesticide Residues in Food webpage.

Next Steps

The PMRA invites the public to submit written comments on the proposed MRLs for fluazinam 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 MRLs. Comments received will be addressed in a separate document linked to this PMRL. The established MRLs will be legally in effect as of the date that they are entered into the Maximum Residue Limit Database.

Appendix I - Summary of Field Trial Data Used to Support the Proposed MRL

Residue data from field trials conducted in the United States were submitted to support the domestic use of Allegro 500F Agricultural Fungicide on Bulb onion subgroup (Crop Subgroup 3-07A). Fluazinam was applied to dry bulb onions at exaggerated rates, which were harvested according to the proposed label directions.

Maximum Residue Limit

The recommendation for the maximum residue limit (MRL) for fluazinam was based upon the submitted field trial data, and the guidance provided in the  OECD MRL Calculator. Table A1 summarizes the residue data used to calculate the proposed MRL for Bulb onion subgroup (Crop Subgroup 3-07A).

Table A1 - Summary of Field Trial Data Used to Support Maximum Residue Limit (MRL)
Commodity Application Method/Total Application Rate (kg a.i./ha) Preharvest Interval (days) Residues (ppm)
Min Max
Dry bulb onions 3.49-3.55 6-8 <0.01 0.101

Following the review of all available data, an MRL of 0.2 ppm in/on Bulb onion subgroup (Crop Subgroup 3-07A) is recommended to cover residues of fluazinam. Residues of fluazinam in these crop commodities at the proposed MRL will not pose an unacceptable risk to any segment of the population, including infants, children, adults and seniors.

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