Current Northern Sacramento Valley ET Report – Nov 15
Irrigation Evapotranspiration (ET) Report for Tehama, Butte and Colusa county CIMIS stations. Continue reading
Yearly Archives: 2024
Current Southern Sacramento Valley ET Report – Nov 16
Irrigation Evapotranspiration (ET) Report for the Woodland, Davis, Staten Island, and Verona CIMIS stations. Continue reading
Carbohydrates, dormancy, and yield in pistachios
Recent years of research by the Zwieniecki lab (the Z Lab) at UC Davis, including the Carbohydrate Observatory, have been providing exciting new insights to better explain how pistachios may be counting winter chill, when budbreak occurs, and how much pistachios will yield in a given year. Continue reading
Previous Southern Sacramento Valley ET Reports – September 2024
This report covers the CIMIS stations in Woodland, Davis, Staten Island, and Verona for Sep 6 – Oct 3, 2024. Continue reading
New Threat to California Almonds: Red Leaf Blotch
In late May 2024, unusual symptoms on leaves, including yellow spots and orange to dark red-brown blotches, were detected in an almond orchard (Nonpareil, Monterey and Fritz) on the border of Merced and Madera counties. Continue reading
Small steps boost net grower returns
Almond growers are in a long tunnel of low prices and high costs. With volatile nut prices largely out of grower control, cost management and cost-effective yield improvements offer the best hope of maintaining headway and reaching the light. Continue reading
Previous Southern Sacramento Valley ET Reports – August 2024
This report covers the CIMIS stations in Woodland, Davis, Staten Island, and Verona for June 28 – Aug 1, 2024. Continue reading
Previous Northern Sacramento Valley ET Reports – September 2024
This report covers the CIMIS stations in Gerber, Biggs, Durham, and Williams for June 28 – Aug 1, 2024. Continue reading
Previous Northern Sacramento Valley ET Reports – August 2024
This report covers the CIMIS stations in Gerber, Biggs, Durham, and Williams for June 28 – Aug 1, 2024. Continue reading
Playing Potassium Catch-Up?
Fertilizer management with thin margins is extra tricky with almonds because varieties can yield so differently within a year. Post-harvest can be a great time to start catching up on potassium. Continue reading
Roller Crimping – A Cover Crop Termination Option
Annie Edwards and Margaret Smither-Kopperl with the USDA recently released a report on termination using a roller crimper in orchard systems. Continue reading
Autumn freeze damage strikes again (2024)
Autumn freeze damage in walnuts can occur when trees experience freezing temperatures prior to going into dormancy. Since 2018, we’ve learned management practices that can prevent widespread damage. Continue reading
Ethephon for Earlier Harvest
Ethephon, also known as Ethrel®, is an ethylene-based plant growth regulator applied at walnut maturity, or shortly thereafter, which accelerates hull cracking and separation from the shell. This advances walnut harvest by four to seven days, depending on the season and variety, and nut value is increased by lighter kernel color and possibly less insect damage. Continue reading
Carpophilus beetle ID guide
UC IPM has released a new resource to help identify carpophilus beetle Continue reading
Previous Northern Sacramento Valley ET Reports – July 2024
This report covers the CIMIS stations in Gerber, Biggs, Durham, and Williams for June 28 – Aug 1, 2024. Continue reading