Proposed Maximum Residue Limit PMRL2018-52, Novaluron

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Pest Management Regulatory Agency
22 November 2018
ISSN: 1925-0843 (PDF version)
Catalogue number: H113-24/2018-52E-PDF

Under the authority of the Pest Control Products Act, Health Canada's Pest Management Regulatory Agency (PMRA) has concluded that the addition of the new uses on greenhouse cucumbers to the product label of Rimon 10 EC, containing technical grade novaluron, is acceptable. The specific uses approved in Canada are detailed on the label of Rimon 10 EC, Pest Control Products Act Registration Number 28515.

The evaluation of this novaluron application indicated that the end-use product has 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 MRL for novaluron is being conducted via this document (see Next Steps). A summary of the greenhouse trial data used to support the proposed MRL 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 Canada's Notification Authority and Enquiry Point.

The proposed MRL, to be added to the MRLs already established for novaluron, is as follows:

Table 1 Proposed Maximum Residue Limit for Novaluron
Common Name Residue Definition MRL
(ppm)1
Food Commodity
Novaluron N-[[[3-chloro-4-[1,1,2-trifluoro-2-(trifluoromethoxy)ethoxy]phenyl]amino]carbonyl]-2,6-difluorobenzamide 0.2 Cucumbers

1 ppm = parts per million

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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 MRL proposed for novaluron in Canada is the same as corresponding American tolerance and Codex MRL1. 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 Index webpage, by pesticide or commodity.

Next Steps

The PMRA invites the public to submit written comments on the proposed MRL for novaluron 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 PMRL. The established MRL will be legally in effect as of the date that it is entered into the Maximum Residue Limit Database.

Appendix I

Summary of Field Trial Data Used to Support the Proposed Maximum Residue Limit

Residue data for novaluron in greenhouse cucumbers were submitted to support the domestic use of Rimon 10 EC on cucumbers.

Maximum Residue Limit

The recommendation for the maximum residue limit (MRL) for novaluron was based upon the submitted greenhouse trial data, and the guidance provided in the OECD MRL Calculator. Table A1 summarizes the residue data used to calculate the proposed MRL for cucumbers.

Table A1 Summary of Field Trial Data Used to Support the MRL
Commodity Application Method/ Total Application Rate
(g a.i./ha)1
Preharvest Interval (days) Lowest Average Field Trial Residues
(ppm)
Highest Average Field Trial Residues
(ppm)
Greenhouse Cucumbers Foliar application/
270-280
0 < 0.05 0.067

1 g a.i./ha = grams of active ingredient per hectare

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Following the review of all available data, the MRL as proposed in Table 1 is recommended to cover residues of novaluron. Residues of novaluron in this crop commodity at the proposed MRL will not pose an unacceptable 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.

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