Registration Decision RD2017-18, Tolpyralate and Tolpyralate 400SC Herbicide

Pest Management Regulatory Agency
15 December 2017
ISSN: 1925-0940 (PDF version)
Catalogue number: H113-25/2017-18E-PDF (PDF version)

Registration Decision Statement for TolpyralateFootnote 1

Health Canada's Pest Management Regulatory Agency (PMRA), under the authority of the Pest Control Products Act and Regulations, is granting full registration for the sale and use of Technical Tolpyralate Herbicide and Tolpyralate 400SC Herbicide containing the technical grade active ingredient tolpyralate for post-emergent weed control in field corn (including corn grown for seed), sweet corn and popcorn.

This decision is consistent with the Proposed Registration Decision PRD2017-13, Tolpyralate and Tolpyralate 400SC Herbicide, which contains a detailed evaluation of the information submitted in support of this registration. The evaluation found that, under the approved conditions of use, the products have value and do not present an unacceptable risk to human health or the environment. The PMRA received no comments on PRD2017-13, Tolpyralate and Tolpyralate 400SC Herbicide.

Other Information

The relevant test data on which the decision is based (as referenced in PRD2017-13, Tolpyralate and Tolpyralate 400SC Herbicide) are available for public inspection, upon application, in the PMRA's Reading Room (located in Ottawa). For more information, please contact the PMRA's Pest Management Information Service by phone (1-800-267-6315) or by email (

Any person may file a notice of objectionFootnote 2 regarding this registration decision within 60 days from the date of publication of this Registration Decision. For more information regarding the basis for objecting (which must be based on scientific grounds), please refer to the Pesticides and Pest Management portion of (Request a Reconsideration of Decision) or contact the PMRA's Pest Management Information Service.

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