Proposed Maximum Residue Limit PMRL2015-10, Sulfoxaflor

Pest Management Regulatory Agency
24 March 2014
ISSN: 1925-0843 (PDF version)
Catalogue number: H113-24/2015-10E-PDF (PDF version)

Under the authority of the  Pest Control Products Act, Health Canada's Pest Management Regulatory Agency (PMRA) has received applications to register the technical grade sulfoxaflor and the end-use products Transform WG Insecticide and Closer SC Insecticide, Pest Control Products Act Registration Numbers 30825 and 30826, respectively.

The evaluation of these sulfoxaflor applications indicated that the end-use products have merit and value, and the human health and environmental risks associated with their proposed uses are acceptable. Details regarding these applications can be found in Proposed Registration Decision PRD2015-08, Sulfoxaflor, posted to the Health Canada website on 24 March 2015.

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.

In addition, the PMRA is proposing to establish MRLs for sulfoxaflor on bulb vegetables (Crop Group 3-07), fruiting vegetables (Crop Group 8-09), cucurbit vegetables (Crop Group 9), citrus fruits (Crop Group 10-revised), low growing berry (Crop Subgroup 13-07G), cottonseed, revised (Crop Subgroup 20C), dry beans, edible-podded snap beans and dry soybeans to permit the import and sale of food containing such residues. The PMRA has determined the quantity of residues that are likely to remain in or on the imported commodities when sulfoxaflor is used according to label directions in the exporting country, and that such residues will not be a concern to human health. Details regarding the proposed MRLs on imported commodities can also be found in PRD2015-08.

Consultation on the proposed MRLs for sulfoxaflor is being conducted via PRD2015-08. Information regarding the proposed MRLs can be found in Sections 3.5 and 7.1. Supporting field trial residue data are provided in Appendix I, Table 4. The PMRA invites the public to submit written comments on the proposed MRLs for sulfoxaflor in accordance with the guidance found in PRD2015-08.

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 for sulfoxaflor are as follows.

Table 1 - Proposed Maximum Residue Limits for Sulfoxaflor
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

Sulfoxalfor N-[methyloxido[1-[6-(trifluoromethyl)-3-pyridinyl]ethyl]-λ4-sulfanylidene]cyanamide 6.0 Leafy greens (Crop Subgroup 4A),  watercress, raisins
4.0 Edible-podded snap beans
3.0 Leaves of root and tuber vegetables (Crop Group 2), stone fruit (Crop Group 12-09)
2.6 Tomato paste
2.0 Leaf petioles (Crop Subgroup 4B), Brassica (cole) leafy vegetables (Crop Group 5) except cauliflowers, small fruit vine climbing, except fuzzy kiwi fruit (Crop Subgroup 13-07F)
1.2 Tomato puree
0.7 Green onion (Crop Subgroup 3-07B), fruiting vegetables (Crop Group 8-09), citrus fruit (Crop Group 10-revised), low growing berry (Crop Subgroup 13-07G)
0.5 Pome fruit (Crop Group 11-09)
0.4 Cucurbit vegetables (Crop Group 9), rapeseed, revised (Crop Subgroup 20A), barley
0.2 Cottonseed, revised (Crop Subgroup 20C), dry beans, dry soybeans
0.08 Cauliflowers, wheat
0.06 Milk
0.05 Root and tuber vegetables (Crop Group 1), meat byproducts of cattle, goats, horses, and sheep
0.02 Meat byproducts of poultry, meat of cattle, goats, horses, and sheep
0.015 Tree nuts (Crop Group 14-11)
0.01 Bulb onion (Crop Subgroup 3-07A), eggs, fat of cattle, goats, horses, and sheep, fat and meat of hogs and poultry, meat byproducts of hogs

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

Sulfoxaflor is a new active ingredient which was concurrently reviewed in Canada and the United States. The MRLs proposed for sulfoxaflor in Canada are the same as corresponding tolerances in the United States, except for certain (livestock) commodities, for which differences in MRLs/tolerances may be due to different livestock feed items and practices.

Table 2 compares the MRLs proposed for sulfoxaflor in Canada with corresponding American tolerances and Codex MRLs.Footnote 1 American tolerances are listed in the  Electronic Code of Federal Regulations, 40 CFR Part 180, by pesticide. A listing of established Codex MRLs is available on the Codex Alimentarius  Pesticide Residues in Food website, by pesticide or commodity.

Table 2 - Comparison of Canadian MRLs, American Tolerances and Codex MRLs (where different)
Food Commodity Canadian MRL (ppm) American Tolerance (ppm) Codex MRL (ppm)
Edible-podded snap beans 4.0 4.0 Not established
Leaves of root and tuber vegetables (Crop Group 2) 3.0 3.0 Not established
Stone fruit (Crop Group 12-09) 3.0 3.0 Not established
Tomato paste 2.6 2.6 Not established
Leaf petioles (Crop Subgroup 4B) 2.0 2.0 1.5 (celery)
Brassica (cole) leafy vegetables (Crop Group 5) except cauliflowers 2.0 2.0 3.0 (broccoli)
0.4 (cabbages, head)
Small fruit vine climbing, except fuzzy kiwi fruit (Crop Subgroup 13-07F) 2.0 2.0 2.0 (grapes)
Tomato puree 1.2 1.2 Not established
Green onion (Crop Subgroup 3-07B) 0.7 0.7 0.7 (spring onion)
Fruiting vegetables (Crop Group 8-09) 0.7 0.7 1.5
(fruiting vegetables other than cucurbits (except sweet corn and mushrooms))
Citrus fruit (Crop Group 10-revised) 0.7 0.7 Not established
Low growing berry (Crop Subgroup 13-07G) 0.7 0.7 0.5 (strawberry)
Pome fruit (Crop Group 11-09) 0.5 0.5 Not established
Cucurbit vegetables (Crop Group 9) 0.4 0.4 0.5 (fruiting vegetables, cucurbits)
Rapeseed, revised (Crop Subgroup 20A) 0.4 0.4 0.15
(rapeseed)
Barley 0.4 0.4 0.6
Cottonseed, revised (Crop Subgroup 20C) 0.2 0.2 0.4 (cotton seed)
Dry beans 0.2 0.2 Not established
Dry soybeans 0.2 0.2 0.3 (soybean, dry)
Cauliflowers 0.08 0.08 0.04
Wheat 0.08 0.08 0.2
Root and tuber vegetables (Crop Group 1) 0.05 0.05 0.03
Tree nuts (Crop Group 14-11) 0.015 0.015 Not established
Bulb onion (Crop Subgroup 3-07A) 0.01 0.01 0.01 (bulb onion, garlic)
Meat of cattle, goats, horses, and sheep 0.02 0.15 0.3
meat (from mammals other than marine mammals)
Meat byproducts of cattle, goats, horses, and sheep 0.05 0.40 0.6 (edible offal (mammalian))
Fat of cattle, goats, horses, and sheep 0.01 0.10
Milk 0.06 0.15 0.2
Meat of poultry 0.01 0.01 0.1
Meat byproducts of poultry 0.02 0.01 0.3 (poultry, edible offal)
Fat of poultry 0.01 0.01
Eggs 0.01 0.01 0.1
Fat, meat and meat byproducts of hogs 0.01 0.01 Not established

Next Steps

The PMRA invites the public to submit written comments on the proposed MRLs for sulfoxaflor 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.

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