From the San Joaquin Valley Delta Field Crops blog • Jan. 21, 2021
Michelle Leinfelder-Miles is the UC Cooperative Extension Delta Crops Resource Management Advisor serving San Joaquin, Sacramento, Yolo, Solano, and Contra Costa counties.
Herbicide Trial in Delta Drill-Seeded Rice - 2020
Weeds are important pests of California...
Mark your calendar...
UC COOPERATIVE EXTENSION presents
2021 Rice Growers Meeting
When: February 11, 2021|9:00 AM-12:00 PM
Where: Virtual via Zoom
- Author: Whitney Brim-DeForest
In 2017, I started getting reports of a watergrass biotype/species (Echinochloa spp.) that was difficult to control using our suite of herbicides registered in rice. At the time, I knew we had multiple herbicide-resistance in late watergrass (Echinochloa phyllopogon), so I initially just thought the resistant biotype was spreading, and had maybe gained resistance to additional herbicide modes of action. However, once I started visiting fields, it quickly became apparent that this was not late watergrass (phenotypically-speaking). It also did not appear to be barnyardgrass (Echinochloa crus-galli), although the Echinochloa species are notoriously difficult to identify, and phenotypically quite variable in...
If you missed this year's California Rice VIRTUAL Field Day, you can view it here.
California Rice Virtual Field Day
The full recording can be viewed here.
HIGHLIGHTED weed science presentations:
- 0:20:59 • Florpyrauxifen-benzyl (Loyant): A New Herbicide for California Rice • Kassim Al-Khatib, CE Specialist, Dept. of Plant Sciences, UC Davis
- 0:37:37 • Weedy Rice Trials and Herbicide Failures in the Field •...
If you didn't get a chance to listen to Whitney Brim-DeForest's webinar presentation on "Integrated Weed Management Rice Systems" (Part 3 of the UCCE Sutter-Yuba-Colusa Continuing Education Series), here it is:
Whitney Brim-DeForest is the UC Cooperative Extension County Director (Sutter-Yuba counties) and Rice and Wild Rice Advisor (Sutter-Yuba, Capitol Corridor MCP, and Placer-Nevada...