- Author: Michelle Leinfelder-Miles
- Posted by: Gale Perez
Michelle Leinfelder-Miles is the UC Cooperative Extension Delta Crops Resource Management Advisor serving San Joaquin, Sacramento, Yolo, Solano, and Contra Costa counties.
From 2019-2021, we conducted trials to evaluate the efficacy of a new herbicide product called Loyant (florpyrauxifen-benzyl; group 4 herbicide; Corteva Agriscience) in Delta drill-seeded rice. Loyant is registered in rice growing states in the southern US but would be a new chemistry in California. Previous company trials have indicated that Loyant provides good control of...
- Author: Whitney Brim-DeForest
- Posted by: Gale Perez
Whitney Brim-DeForest is the UC Cooperative Extension County Director for Sutter and Yuba counties and the Rice and Wild Rice Advisor for Sutter, Yuba, Capitol Corridor MCP, Placer, and Nevada counties.
In 2020, we conducted a small screening with a set of 10 watergrass samples (collected in 2018) from across the valley, trying to see if we could get an idea of what herbicides controlled the different species/biotypes. The results from those 10 samples indicated that Clincher, propanil, and Regiment, as well as Cerano, had the best...
- Author: Whitney Brim-DeForest
- Author: Luis Espino
- Author: Troy Clark
- Posted by: Gale Perez
2020 Survey Update
Weedy rice was found in California on a large scale in 2016, over 8 counties, after having been only found in a few fields in one county prior to 2008. In 2020, University of California Cooperative Extension conducted a comprehensive survey. The objectives of this survey were to determine: 1) presence-absence of weedy rice, 2) to determine infestation level, and 3) to determine if there was any pattern to the distribution of weedy rice biotypes.
A survey was conducted from June thru September 2020 across eight counties (Glenn, Butte, Colusa, Sutter, Yolo, Yuba, Placer and Sacramento). Each field was surveyed on an individual basin level. Each basin was surveyed by...
- Author: Alex Ceseski
- Posted by: Gale Perez
The California Rice Field Day is back! The annual event, sponsored by the California Cooperative Rice Research Foundation and the California Rice Board, returned to in-person status on August 25, 2021 after being held virtually in 2020. The field day is the premier event for the California rice industry, showcasing the latest developments in rice breeding and agronomic techniques, as well as demonstrations of research on rice physiology and pest control. More than 300 growers, advisors, industry professionals, and academics attended the event at the California Rice Experiment Station in Biggs, CA.
As usual, the UC Davis Weed Science group had several research trials on...
- Posted by: Gale Perez
Rice Pest Management Course (in-person event)
Friday, Sept. 10, 2021
Hamilton Road Field and CA Rice Experiment Station, Biggs, CA
Approved for DPR and CCA continuing education units.
Online registration closes 9/7/2021. Walk-ins accepted if space is available.
VIDEO of 2019 course
