Author Archives: Sacramento Valley Orchards
Help Wanted: Join the Dialogue on Herbicide Resistant Weeds
Are you planning on attending the World Ag Expo? As part of a national effort on developing research and regulatory priorities related to the challenging problems of herbicide-resistant weeds, the Weed Science Society of America is sponsoring a half-day regional workshop to discuss the issues, potential solutions, and technical and economic barriers related to resistant weeds. Continue reading
Aphids and Mites
Adapted from the article “Continue Watching for Aphid and Spider Mite Infestations” by Bill Krueger, UCCE Farm Advisor Emeritus, Glenn County in the August 2009 Sacramento Valley Walnut News. Aphids There are two aphid species that damage walnuts, the walnut … Continue reading
Phytophthora Management
Adapted from the article “Managing Phytophthora in Walnuts” by Bill Krueger, UCCE Farm Advisor Emeritus, Glenn County and Greg Browne, USDA Research Plant Pathologist, UC Davis in the March 2010 Sacramento Valley Walnut News. Phytophthora crown and root rot is … Continue reading
Tree Spacing
Adapted from the articles “Spacing Walnuts for Optimum Light Interception and Production” by Bruce Lampinen, Walnut and Almond Specialist, UC Davis and Janine Hasey, UCCE Farm Advisor, Sutter, Yuba, Colusa Counties; and “Perspective on trends in orchard spacing, pruning and … Continue reading
Winter Irrigation During Drought
Adapted from the article “Winter Irrigation During Drought” by Joseph H. Connell, UCCE Farm Advisor Emeritus, Butte County in the December 2008 Sacramento Valley Walnut News. We know that during the winter months walnuts can be hurt by either too … Continue reading
Replanting into Nematode-Infested Soils
Adapted from the article “Best Management of Replant Alternative Fumigants” by Carolyn DeBuse, Former UCCE Farm Advisor, Solano, Yolo Counties and Michael McKenry, Extension Nematologist Emeritus and “Orchard removal and site preparation for walnut planting” by Joseph Connell, UCCE Farm … Continue reading
Yellowing Trees
Adapted from the article “Why are some individual young walnut trees turning yellow and not growing?” by Richard Buchner and Joe Connell, UCCE Farm Advisors, Tehama and Butte Counties in the September 2010 Sacramento Valley Walnut News When an individual … Continue reading
Building an Effective Orchard Weed Management Program
Adapted from the articles “Building an effective orchard weed management program” by Brad Hanson, UC Cooperative Extension Specialist, UC Davis and “Planning your weed management program” by Andrew Johnson, former UCCE, Almond Board of California Intern in the Sacramento Valley … Continue reading
Almond Scab
Adapted from the article “Tackling Last Season’s Outbreak of Almond Scab in Spring 2007 – An Update” by Joseph Connell, UC Farm Advisor, Butte Co. in the April 2007 Sacramento Valley Almond News. Almond scab is a fungal disease of … Continue reading
Rust
Adapted from the article “Alternaria leaf spot and leaf rust of almond” by Joseph Connell, UCCE Farm Advisor, Butte County, and Dr. Jim Adaskaveg, Professor, Department of Plant Pathology and Microbiology, University of California Riverside, in the July, 2013 Sacramento … Continue reading
Observations on Krymsk 86
Adapted from the article “Observations on Krymsk 86 rootstock” by Joe Connell, UC Farm Advisor, Butte County in the September 2011 Sacramento Valley Almond News Krymsk 86 is a peach-plum hybrid rootstock (Prunus persica x P. cerasifera) that originated in … Continue reading
Honey Bee Safety During Bloom
Adapted from the article “Honey Bee Safety During Bloom” by Emily J. Symmes, UCCE Area IPM Advisor, Sacramento Valley in the December 2014 Sacramento Valley Almond News. Honey bee safety is not a new concept in agriculture, particularly for almond … Continue reading
Pollinator Options in Addition to Honey Bees
Adapted from the articles “Blue Orchard Bees — Potential for Almond Pollination?” by Carolyn Pickel, Area IPM Advisor, Glenn Nader, Farm Advisor Sutter-Yuba and Joe Connell, Farm Advisor Butte County and “Almond orchards with wild insects have higher fruit set” … Continue reading
Protecting Almonds from Damage at Planting
Adapted from “Guidelines for planting almonds” by Bill Krueger, UC Farm Advisor, Glenn County in the January 2012 Sacramento Valley Almond News. Plant only into soil that is at field capacity or drier. Planting into wet soil can cause compaction, … Continue reading