The armyworm has infested several fields more substantially and earlier than normal this year. Luis Espino used the degree day to predicted 5th instar armyworms would start showing up June 22. The heat from last week accelerated the armyworm growth in the field as reported in the UC Rice Blog.
We have been communicating with the Department of Pesticide Regulation (DPR) and they are relaying the information to the U.S. Environmental Protection Agency (U.S. EPA). The best update we can provide is the Intrepid section 18 specific emergency exemption is in the process as a top priority with expedited review. We no longer have the option for a crisis exemption, since the last two years resulted in an unprecedented approval through that process.
The DPR staff have been incredible team players in their responsiveness and ability to develop the justification for significant economic loss from the limited yield loss data we provided from last year. In the interim, please consider alternative insecticides as we do not have a firm timeline on the Intrepid section 18. The armyworm feeds on the levee watergrass before moving to the rice in the field. Some are controlling the watergrass on the levee as an attempt to keep the fields clear of armyworm.
Armyworm has returned to rice fields earlier than normal this year. The Intrepid section 18 emergency exemption has been submitted for approval. However, we currently do not have a date when it will be available – or if it will be offered. The yield damage data we received to support the significant economic loss was minimal. Without the necessary data, we crafted an argument we anticipate will adequately justify the section 18. In the interim, the alternative insecticides are an option when the worm reaches treatment threshold levels. READ MORE
In our previous June 9 update on conservation programs we informed CRC members about current opportunities to enroll into waterbird conservation programs. READ MORE
We use the field information from the restricted materials (pesticide permits) at the county agricultural commissioner offices for uploading to the Farm Evaluation and the Nitrogen Management Plan – the reporting requirements for the Rice Waste Discharge Requirements. The CRC cannot manipulate, or change the field information if it is incorrect. Please correct the information at the county agricultural commissioner office in preparation for reporting next year. READ MORE
The CRC and its partners are currently seeking enrollment into the Regional Conservation Partnership Program (RCPP) and BirdReturns Program. On June 6, 2017, CRC hosted an informative Conservation Programs Workshop where details of these programs were discussed. The workshop presentations are included here (RCPP / BirdReturns). READ MORE
A strong turnout of 161 people attended this afternoon’s California Rice Circle of Life Reception, including 15 Legislators. Some of today’s highlights included: READ MORE
In just the third week of monitoring, there has been a second series of exceedances. The thiobencarb monitoring results show performance goal exceedances of 1.8 parts per billion at the two northern drain sites – Butte Slough and Colusa Basin Drain 5. On the same date, we had an exceedance of 2.7 parts per billion at one of the two additional sites monitored by the Department of Pesticide Regulation. READ MORE
Growers will have the opportunity to nominate individuals to serve on the CRC Board for three-year terms. Nomination forms and information on the seats open in each district were mailed to every grower this week. Nomination forms must be returned or postmarked by July 7, 2017. READ MORE
The thiobencarb monitoring results show a detection close to the performance goal of 1.5 parts per million at the Colusa Basin Drain Site 5. On the same date, we had an exceedance of 2.5 parts per billion at one of the two additional sites monitored by the Department of Pesticide Regulation. READ MORE
We have partnered with the University of California Cooperative Extension to develop a series of tools to help with weedy rice, a significant issue that will take strong coordination to properly combat. READ MORE