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Image of apiary training sponsored by DPR, Parlier, CA. June 2014

 Apiary training sponsored by DPR,
Parlier, CA June 2014

Neonicotinoid Reevaluation Progress and Protecting Bee Health

The California Department of Pesticide Regulation (DPR) is at the national forefront of the effort to protect bee health, taking proactive steps and a scientific approach to address concerns about the impact of pesticides on the health of bees and pollinators. One such step includes the reevaluation of certain pesticide products containing the nitroguanidine-substituted neonicotinoid active ingredients, imidacloprid, thiamethoxam, clothianidin, and dinotefuran. As a result of the reevaluation, which included issuance of a pollinator risk determination, DPR determined that additional mitigation measures are needed to protect pollinators from the use of the neonicotinoids in agricultural crops and is developing mitigation measures in the form of regulations.

Public Feedback Webinars

DPR held two webinars on August 11 and 12, 2020, to share information and gather feedback from the public on the proposed pollinator protection mitigation measures for the use of nitroguanidine-substituted neonicotinoids in agricultural crops. The original comment period has been extended. Comments and feedback on the proposal will now be accepted until the end of day on October 30, 2020. Comments can be made by e-mail to or by leaving a voicemail message at 916-445-0003. The webinars were recorded and are available at the links below.