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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The Intrepid® 2F Insecticide (EPA Reg. No. 62719-442) section 18 has been approved for use in Butte, Colusa, Glenn, Merced, Sacramento, San Joaquin, Sutter, Yolo, Yuba Counties.
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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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UCCE Rice Farm Advisor Luis Espino reports in this week’s update that true armyworm numbers are on the rise.
Here’s a link to Luis’ update, including trapping data and the latest on the western yellowstriped armyworm.
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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UCCE Rice Farming Systems Advisor Luis Espino has a new update available here regarding the armyworm.
So far, true armyworm moth numbers remain low.
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Today’s Circle of Life Reception in Sacramento provided an excellent opportunity to convey the importance of California Rice to key audiences.
We recorded our second-highest turnout, with 149 on hand at the Sheraton Grand Sacramento.
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Growers will soon receive nomination forms for the upcoming CRC Board of Directors election. All producers who produce or cause to be produced rice in a district are encouraged to consider running for one of the open seats. Member and alternate seats are open in District 1, 3, 4, 5.
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