13 October 2009
HC Pub: 8282
ISBN: 978-1-100-10850-6 (print version)
ISBN: 978-1-100-10851-3 (PDF version)
Catalogue number: H113-24/2009-3E (print version)
Catalogue number: H113-24/2009-3E-PDF (PDF version)

Help on accessing alternative formats, such as Portable Document Format (PDF), Microsoft Word and PowerPoint (PPT) files, can be obtained in the alternate format help section.

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Under the authority of the Pest Control Products Act, Health Canada's Pest Management Regulatory Agency (PMRA) has granted conditional registration to technical grade mandipropamid and the end-use product Revus Fungicide for use in Canada on bulb vegetables (Crop Group 3), Brassica (cole) leafy vegetables (Crop Group 5), cucurbit vegetables (Crop Group 9), grapes, lettuce, peppers, potatoes, spinach, tomatillos and tomatoes. See Residue Chemistry Crop Groups for a list of crop group commodities. The specific uses approved in Canada are detailed on the product label of Revus Fungicide, Pest Control Products Act Registration Number 29074.

The evaluation of these mandipropamid applications indicated the end-use product has merit and value, and the human health and environmental risks associated with the new uses are acceptable. Details regarding these registrations can be found in Evaluation Report ERC2009-01, Mandipropamid.

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 import MRLs for mandipropamid on tuberous and corm vegetables (Crop Subgroup 1C), leafy vegetables except Brassica (Crop Group 4), fruiting vegetables (Crop Group 8) and okra. See Residue Chemistry Crop Groups for a list of crop group and subgroup commodities. The PMRA has determined the quantity of residues that are likely to remain in or on the imported commodities when mandipropamid 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 establishment of these import MRLs can also be found in ERC2009-01.

Consultation on the proposed MRLs for mandipropamid is being conducted via this document (see Next Steps, the last section of this document). A summary of residue data supporting the proposed MRLs is available in Appendix I, Table 5 of ERC2009-01.

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 mandipropamid in Canada in or on food are as follows.

Table 1 Proposed Maximum Residue Limits for Mandipropamid

Common Name	Residue Definition	MRL (ppm)	Food Commodity
Mandipropamid	4-chloro-N-[2-[3-methoxy-4-(2-propynyloxy)phenyl] ethyl]-ª-(2-propynyloxy) benzeneacetamide	25	Leafy Brassica greens (Crop Subgroup 5B)
		20	Leafy vegetables, except Brassica (Crop Group 4)
		4.0	Green onion subgroup (Crop Subgroup 3-07B)
		3.0	Head and stem Brassica (Crop Subgroup 5A), raisins
		1.4	Grapes
		1.0	Fruiting vegetables (Crop Group 8), okra
		0.6	Cucurbit vegetables (Crop Group 9)
		0.05	Bulb onion subgroup (Crop Subgroup 3-07A)
		0.01	Tuberous and corm vegetables (Crop Subgroup 1C)

MRLs for the listed crop groupings are proposed for each commodity included in the crop group or subgroup.

A complete list of all MRLs established in Canada can be found on the Maximum Residue Limits for Pesticides webpage.

International Situation and Trade Implications

The proposed Canadian MRLs are the same as corresponding tolerances established in the United States (tolerances listed in the Electronic Code of Federal Regulations by pesticide). However, note that Canadian MRLs are proposed for the entire bulb vegetable crop group, whereas American tolerances are only established on dry bulb onions and green onions, at 0.05 ppm and 4.0 ppm respectively, consistent with the crop subgroup MRLs proposed in Table 1. Currently, Codex MRLs have not been established for mandipropamid on any commodity. A listing of all established Codex MRLs is available on the Pesticide Residues in Food website.

Next Steps

The PMRA invites the public to submit written comments on the proposed MRLs for mandipropamid 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 for mandipropamid and posting a corresponding Established Maximum Residue Limit document.