Current Southern Sacramento Valley ET Report – October 30
Irrigation Evapotranspiration (ET) Report for the Woodland, Davis, Staten Island, and Verona CIMIS stations. Continue reading
Monthly Archives: October 2025
Current Northern Sacramento Valley ET Report – October 23
Irrigation Evapotranspiration (ET) Report for Tehama, Butte and Colusa county CIMIS stations. Continue reading
Pre-emergent herbicides: 2025 herbicide demonstration trial for walnut
The 2025 walnut pre-emergent herbicide demonstration trial is completed, and the results show strengths and weaknesses of 19 different herbicide treatments, applied either in February or March. Continue reading
Red Leaf Blotch Finds its way to the Sacramento Valley (2025)
Florent Trouillas, Associate Professor of Cooperative Extension, Plant Pathology, UC Davis Luke Milliron, UCCE Farm Advisor, Butte, Glenn, and Tehama Counties Red leaf blotch (RLB), caused by the fungal pathogen Polystigma amygdalinum, which was first detected in California in the … Continue reading
Oak Root Fungus: Rootstock Considerations in 2025-2026
Luke Milliron, UCCE Farm Advisor, Butte, Glenn and Tehama Counties Roger Duncan, UCCE Farm Advisor Emeritus, Stanislaus County If you have an orchard plagued generation after generation by oak root fungus (ORF, Armillaria mellea), disease resistance should be at or … Continue reading
Post-Harvest Ground Squirrel Management
It can be difficult to control squirrel populations mid-season, when there are lots of nuts as a food source and when some squirrels may be estivating (hibernating due to summer heat), but now that those nuts are out of the picture, here are some post-harvest and dormant season management practices that may help knock squirrels back before next year. Continue reading
Previous Northern Sacramento Valley ET Reports – September 2025
This report covers the CIMIS stations in Gerber, Biggs, Durham, and Williams. More information on using ET Reports is available here. Bookmark this page and visit weekly for the most current report. Accumulations started on March 1, 2025 for pasture, … Continue reading
Fall Zinc and Boron Review 2025
Franz Niederholzer, UCCE Advisor, Colusa and Sutter/Yuba Counties Bloom is the most important time of year for adequate boron (B) and zinc (Zn) levels in almonds. Zinc is essential to many processes such as cell division, protein synthesis, and auxin … Continue reading
Previous Southern Sacramento Valley ET Reports – September 2025
This report covers the CIMIS stations in Woodland, Davis, Staten Island, and Verona. More information on using ET Reports is available here. Bookmark this page and visit weekly for the most current report. Accumulations started on March 1, 2025 for … Continue reading
Almond Management Considerations – Fall 2025
Luke Milliron, UCCE Butte, Glenn, Tehama Counties Jaime Ott, UCCE Tehama, Shasta, Glenn, and Butte Counties Becky Wheeler-Dykes, UCCE Glen, Tehama, and Colusa Counties Franz Niederholzer, UCCE Farm Advisor, Colusa and Sutter/Yuba Counties Postharvest nutrition Use information from your July … Continue reading