Matador/Warrior/Silencer and Imidan proposed phase out

Dennis Van Dyk, OMAFRA
August 15, 2017
By Dennis Van Dyk, OMAFRA
August 15, 2017 - The PMRA have proposed to cancel the registration of both lambda-cyhalothrin (Matador/Silencer/Warrior) and phosmet (Imidan).

The decisions can be found here:

Lambda-cyhalothrin – https://onvegetables.files.wordpress.com/2017/08/cyhalothrinlambdaprvd2017-03.pdf
Phosmet – https://onvegetables.files.wordpress.com/2017/08/phosmetprvd2017-07.pdf

The decisions state that lambda-cyhalothrin poses an unacceptable risk from dietary exposure (worst case scenario cumulative food residues would be too high), while phosmet poses a risk during application and post-application activities. The proposed precautions such as revised restricted entry intervals would not be agronomically feasible (e.g. 12 day REI for scouting carrots, 43 days for moving irrigation pipe).

Public consultation is now open until September 23 (lambda-cyhalothrin) or September 30 (phosmet) so if growers wish to make comments on these proposed decisions you can submit them to This e-mail address is being protected from spambots. You need JavaScript enabled to view it , or talk to your growers’ association who can comment on your behalf.

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