Proposed Re-evaluation Decision PRVD2021-07, Straight Chain Lepidopteran Pheromones and their Associated End-use Products

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Pest Management Regulatory Agency
31 May 2021
ISSN: 1925-0967 (PDF version)
Catalogue number: H113-27/2021-7E-PDF (PDF version)

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Table of contents

Proposed re-evaluation decision

Under the authority of the Pest Control Products Act, all registered pesticides must be re-evaluated by Health Canada’s Pest Management Regulatory Agency (PMRA) to ensure that they continue to meet current health and environmental standards and continue to have value. The re-evaluation considers data and information from pesticide manufacturers, published scientific reports, and other regulatory agencies, as well as comments received during public consultations. Health Canada applies internationally accepted risk assessment methods as well as current risk management approaches and policies to all re-evaluations.

Straight chain lepidopteran pheromones (SCLPs) are naturally occurring semiochemicals produced by moths and butterflies, and when used in pest control products, SCLPs are synthetic versions of these naturally occurring compounds. The SCLPs are registered to control several different moth populations in pome and stone fruit trees, tree nuts, grapes, outdoor woody ornamental trees (ties and canisters), and in forests and woodlands (pellets and microcapsules via aerial application). When released into the atmosphere, SCLP pesticides act as mating disruptors by interfering with the chemical communication between male and female insects to reduce the overall pest population in target crops.

This document (Proposed Re-evaluation Decision PRVD2021-07, Straight Chain Lepidopteran Pheromones and their Associated End-use Products) presents the proposed regulatory decision for the re-evaluation of the following SCLPs which the PMRA has grouped on the basis of use pattern as well as their structural and toxicological similarity:

Straight Chain Lepidopteran Pheromone CAS. No.
(Z)-11-tetradecenal 35237-64-0
(Z)-11-tetradecen-1-ol 34010-15-6
(Z)-9-tetradecen-1-yl acetate 16725-53-4
(Z)-11-tetradecenyl acetate 20711-10-8
1-Tetradecanol 112-72-1
1-Dodecanol 112-53-8
(E,E)-8,10-dodecadien-1-ol (Codlelure) 33956-49-9
(Z)-9-dodecenyl acetate 16974-11-1
(E,Z)-9-dodecenyl acetate Z isomer 16974-11-1
E isomer 35148-19-7
(E,Z)-11-tetradecenal 70893-80-0
(E,Z)-3,13-Octadecadien-1-yl acetate 53120-26-6

Under the authority of the Pest Control Products Act, and based on the evaluation of currently available scientific information, products containing a SCLP listed in Appendix I of PRVD2021-07 are proposed for continued registration in Canada. When the current label directions are followed, potential risks to human health and the environment are considered to be acceptable. SCLPs have value in providing a non-conventional solution for insect control. Registered pesticide product labels include specific directions for use. Directions include risk mitigation measures to protect human health and the environment that must be followed by law. As a result of the re-evaluation of the SCLPs, no further risk mitigation measures for product labels are proposed. To meet current standards, label updates for specific products are proposed in Appendix II of PRVD2021-07. This document is subject to a 90-day public consultation period, during which the public, including the pesticide manufacturers and stakeholders, may submit written comments and additional information to the PMRA.

Next steps

The public, including the registrants and stakeholders, are encouraged to submit comments and additional information during the 90-day public consultation periodFootnote 1 upon publication of PRVD2021-07.

All comments received during the 90-day public consultation period will be taken into consideration in preparation of the re-evaluation decision document,Footnote 2 which could result in revised risk mitigation measures. The re-evaluation decision document will include the final re-evaluation decision, the reasons for it and a summary of comments received on the proposed re-evaluation decision with Health Canada’s responses.

Additional scientific information

No additional data are required.

Footnotes

Footnote 1

"Consultation statement" as required by subsection 28(2) of the Pest Control Products Act.

Return to footnote 1 referrer

Footnote 2

"Decision statement" as required by subsection 28(5) of the Pest Control Products Act.

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