Industry News

Thiobencarb Exceedance at Second Monitoring Event

Thiobencarb Exceedance at Second Monitoring Event

Thiobencarb exceeded the 1.5 µg/L (parts per million) performance goal to a reading of 2.3 µg/L at the Colusa Basin Drain 5 (CBD5) site off Highway 20. A monitoring site receiving drainage from Colusa and Glenn Counties. This particular exceedance was at the second monitoring event on May 14.

We realize the current weather conditions add to the challenge of maintaining a water hold while establishing a rice stand. Most thiobencarb applications have not been on the field long enough (19-days) to qualify for an emergency release.

Thiobencarb treated fields can be released at 6-days if water is retained on site, or to drains the grower controls. The county agricultural commissioner must evaluate the conditions if a closed or recirculating type system does not exist. If possible, it is best to move the water to a location that does not flow to a main drain.

Some counties are working with rice growers to evaluate options. The Rice Pesticide Water Management Requirements Summary from the Department of Pesticide Regulation might provide thoughts on decisions to release.

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Link to Day Two of the CRC Virtual Grower Meeting

Link to Day Two of the CRC Virtual Grower Meeting

Here is the link to the second day of the 2021 California Rice Commission Virtual Grower Meeting. 

Today’s speakers include Tyson Redpath of The Russell Group with a look at federal issues impacting our industry, David Guy of the Northern California Water Association on our water outlook and Betsy Ward of USA Rice with updates on key trade and policy initiatives.

We are providing this information in a virtual format due to COVID-19 restrictions. 

Here is today’s portion of the CRC Virtual Grower Meeting:

Please contact CRC Communications Manager Jim Morris with any questions at (916) 205-5395 or