Consultation on (S)-Kinoprene and its Associated End-Use Products, Proposed Re‑evaluation Decision PRVD2020-11

Notice to the reader:

The online consultation is now closed.

Health Canada is consulting Canadians on the proposal to cancel the registration of (S)-kinoprene and all associated end-use products for sale and use in Canada.

(S)-Kinoprene is an insect juvenile hormone analogue applied by foliar spray that inhibits insect growth during the moulting process. The pesticide is valued in controlling aphids and whiteflies, and suppress mealybugs on greenhouse ornamental plants. However, risks were identified for occupational workers that were not shown to be acceptable when the pesticide is used according to label directions or additional mitigation measures considered. (S)-Kinoprene was also found to present potential risks to certain terrestrial and aquatic organisms.

(S)-Kinoprene is the active ingredient in the currently registered commercial product Enstar®EW Insect Growth Regulator; more information is available in the Pesticide Label Search database.

For more information on the proposed decision open the "Proposed Re-evaluation Decision".

How to Get Involved

This consultation is open for comment from 6 August 2020 to 4 November 2020 (90 calendar days).

To comment on PRVD2020-11:

Step 1
Request the full consultation document to read the Science Evaluation that is the basis of this proposed regulatory decision.
Step 2
Submit comments to the PMRA Publications Section

All comments received will be considered. A final re-evaluation decision will consider additional scientific information provided during the public comment period.

Please refer to the document title (for example: PRVD2020-11, (S)-kinoprene and its Associated End-Use Products) when providing comments.

Reporting to Canadians

Health Canada will make the results of this consultation available on this website. Once the decision is finalized, the PMRA will post a Re-evaluation Decision on the Pesticides and Pest Management Reports and Publications portion of

If you have any questions, contact the Pest Management Information Service.

Interested in our other consultations? Sign up and stay informed about topics that matter to you.

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