Industry News

Rice Pesticide Registration remains a Major Focus

tractor at sunset

Many of you may be aware the state and federal offices have been closed for a year with staff working remotely. The government agencies are anticipating reopening around June. This has been less an issue for the CRC, since we have been working remote for several years and maintain a satellite office in downtown Sacramento. 

Regardless of the work situation, progress continues on the registration of pesticides. Here’s a brief update on pesticide registration actions the CRC has been involved this past year:

ALB2023 ROXY™ Rice Production System 

Ontrack for simultaneously submitting the registration packet to the U.S. EPA and Department of Pesticide Regulation (DPR) by end of March.

Chlorantraniliprole/Coragen (Prevathon or Ventacor)

Insecticide for armyworm control as a resistance management tool for Intrepid® 2F. Chlorantraniliprole is an IR-4 project (for residue data development) with the CRC as the applicant. Anticipate registration in 2023. 

Clethodim/ Select Max® Herbicide

Possible future spot treatment herbicide for weedy rice control. Clethodim is an IR-4 project with the CRC as the applicant. Anticipate a decision whether IR-4 will accept the project by September.

Copper sulfate/Various names

Preparing comments to support continuance of organic certification.

Florpyrauxifen-benzyl/ Lyoant with Rinskor® Technology

The Rinskor part of this product is registered and the Loyant pesticide portion is in the final stages of registration at the DPR. We anticipate registration for the current use season with no guarantee on a date. 

Methoxyfenozide/Intrepid® 2F

Was on track for registration as an armyworm product in 2021. The registration date has been revised to 2022. Intrepid® 2F will be a section 18 for the seventh year in 2021. This was the first IR-4 project for rice with the CRC as the applicant. 


In communication with the registrant about additional studies on the formulation. 

Thiobencarb/Abolish® 8EC, Bolero® UltraMax, League® MVP, Willowood Thio UltraMax

Valent U.S.A. LLC and Generic Crop Sciences LLC are the two registrants. The CRC stewardship is available online. Here are links to the two different Thiobencarb courses:

CEU Course

Certificate Course

Additional work involves two herbicides and one fungicide. However, it is too early in the process to provide updates on these products. 
For questions or more information, please contact CRC Industry Affairs Manager Roberta Firoved at or (916) 206-5039.

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tractor at sunset

State Grant Just the First Step

We appreciate the Governor’s California Small Agricultural Business Drought Relief Grant Program. This brand new program is a good first step to meet the needs of very small businesses impacted by the drought. This success was the result of great work with NCWA, CA Agricultural Aircraft Association, California Warehouse Association and others in agriculture. To address the needs of rice mills, dryers and larger suppliers, federal relief will be needed. 

tractor at sunset

Rice Pesticides: Key Links and Updates

The links below include select pesticide updates in an effort to provide the information in an easily accessible way. Please remember, the pesticide label is the ultimate level of enforcement and the county permit conditions can supersede the label with more restrictive requirements. You will find permit conditions and the water hold table for Thiobencarb. County permit conditions have been changed to active ingredient rather than trade or product name. The products with combination formulations could have permit conditions apply to one, and not both, of the active ingredients. In this situation, the most stringent requirements must be followed. The EPA Reg. No. provides additional identification of the individual pesticide products on the Rice Pesticide Update Table.