Thiobencarb Season Ends with Successful Results
A special thank you to the rice growers, pilots, applicators and PCAs who steward thiobencarb through usage, applications, and recommendations. This season ended with no exceedances.
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Water Quality
More Positive Results from Thiobencarb Monitoring
Good news continues as the thiobencarb monitoring results hit a peak detection of 1.2 ppb on May 20 at the CBD5 site, which is below the performance goal of 1.5 ppb. Monitoring results at the CBD5 site recovered to 0.79 ppb and 0.73 ppb on May 25 and 27. Sight detections were discovered at the lower Colusa Basin site (CBD1) and Butte Sough. We are halfway through the monitoring season and will continue share monitoring results throughout the season.
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Propanil Update for 2021
The CRC received calls about concerns with the propanil SuperWHAM!® CA performance last year. We reached out to UPL, the registrant, and the company completed considerable research over the winter months.
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More Positive Results from Thiobencarb Monitoring
The thiobencarb monitoring results continue to be excellent through May 20. Reporting shows three detections (<1.0 ppb) at the upper Colusa Basin site (CBD5) starting May 6 and going down by May 18. The monitoring site had a peak detection of 1.2 ppb on May 20, which is below the performance goal of 1.5 ppb. We will continue to share monitoring results throughout the season.
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Encouraging Results from Thiobencarb Monitoring
Good news! The thiobencarb monitoring results have been excellent and mostly non-detect through May 11. Monitoring is a weekly event with more recent results pending. The reporting shows two detections (<1.0 ppb) at the upper Colusa Basin site (CBD5), which are not a concern. We will continue to relay positive information on this important area, as well as any exceedances.
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Pyrethroid TMDL Monitoring Reveals Concerns
The monitoring results are 12.5 percent survival at CBD5 on May 4. Two days later, the same site received the first thiobencarb detection for the season. We will follow up with the Colusa County Agricultural Commission to track applications close to the site.
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Thiobencarb Monitoring Season Starts Tomorrow
Monitoring for 2021
Thiobencarb monitoring starts tomorrow, April 27. We base the monitoring on planting dates and timing of thiobencarb applications from the county agricultural commissioner offices sharing dates from notices of intent.
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Rice Commission’s Online Thiobencarb Stewardship Training Available
The thiobencarb stewardship training video is recorded and available 24/7 in two locations.
- You will see two options on calricenews.org website:
Rice Commission’s Online Thiobencarb Stewardship Video Now Available
Missed our live webinar on February 19? Do you need a stewardship certificate for your County Agricultural Commissioner or just seeking CEU credit? The Rice Commission’s thiobencarb stewardship video is recorded in five segments and available 24/7 at:
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CRC takes Thiobencarb Stewardship Online. Here’s what You need to know.
Live Details
Register in advance to attend the broadcast using the following link:
https://event.on24.com/wcc/r/2972035/F6321F0EF8122B23D965DDA97FEB0FD6?partnerref=EXTCRC
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