Recent News

Thiobencarb Monitoring continues to exceed

The Cal/EPA leadership is taking a higher interest in reviewing programs as a result in the change in the State and Agency Administrations. Compliance with thiobencarb permit conditions are under scrutiny and could result in changes to future use of this important herbicide. The monitoring results are our measure of compliance with the thiobencarb permit conditions

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2019 Armyworm Trapping Update

2019 Armyworm Trapping Update

From Luis Espino UCCE Rice Farming Systems Advisor

The number of true armyworm moths has shot up quite a bit in several locations. True armyworm has been the problem species in the past. Western yellowstriped armyworm moths have been variable, increasing in some locations, decreasing in others, but in general, the numbers are much lower than at the beginning of the season.

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Thiobencarb Monitoring Moves to Fifth and Sixth Weeks

Thiobencarb monitoring results report numbers at most sites on May 30 and June 4. The monitoring numbers exceeded the 1.5 µg/L (parts per billion) performance goal at the upper part of Colusa Basin Drain (CBD5) on May 30, and the lower part of the drainage (CBD1) May 30 and June 4. This now counts as seven exceedances of the performance goal into the sixth week of monitoring.

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Thiobencarb Fourth Week of Monitoring

Memorial Day weekend typically marks the fifth week of thiobencarb monitoring with peak use and numbers exceeding the 1.5 µg/L (parts per million) performance goal. For this atypical year, the holiday marked the fourth week of monitoring with numbers at all sites except the Sacramento River location. The monitoring results recovered to acceptable levels after a rough start where the performance goal was exceeded two and three weeks into the program.

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