Your source for orchard news & information in the Sacramento Valley
Adapted from the article “Bacterial Canker and Blast in Prunes” by Bill Krueger UC Farm Advisor, Glenn County in the February 2010 Sacramento Valley Prune News Bacterial canker is a serious disease of all Prunus species. The causal bacteria, Psuedomonas … Continue reading
Adapted from the articles “Managing fruit brown rot and prune rust” by Joe Connell, UC Farm Advisor, Butte County and “Managing fruit brown rot in prunes” by Franz Niederholzer, UC Farm Advisor, Sutter/Yuba Counties in the Sacramento Valley Prune News, … Continue reading
Adapted from the article “Fall Weed Management Considerations in Prune Orchards” by Emily J. Symmes, UCCE Area IPM Advisor, Sacramento Valley and John Roncoroni, UCCE Perennial Crops Weed Science Advisor, Napa County in the October 2014 Sacramento Valley Prune News … Continue reading
Adapted from the article “Scale Pests in Prune Orchards and Keeping a Balance of Natural Enemies to Control Them” by Carolyn DeBuse, UC Farm Adviser, Solano and Yolo Counties in the October 2010 Sacramento Valley Prune News Three scale pests … Continue reading
Adapted from the article “Prune Rust Management Plan” by Carolyn DeBuse, UC Farm Advisor, Solano/Yolo Co. in the April 2010 Sacramento Valley Prune News. Leaf rust is caused by a fungal pathogen Tranzschelia discolor which over winters as spores on … Continue reading
Adapted from the articles “Hand and mechanical pruning comparisons for French prunes” by Bill Krueger, Farm Advisor, Franz Niederholzer, Farm Advisor, Erick Nielsen, Grower cooperator and Charles Garcia in the October 2009 Sacramento Valley Prune News Prune trees are pruned … Continue reading
Adapted from the article “Honey Bee Safety During Prune Bloom” by Franz Niederholzer, UCCE Farm Advisor, Colusa/Sutter/Yuba Counties and Emily J. Symmes, UCCE Area IPM Advisor, Sacramento Valley in the February 2015 Sacramento Valley Prune News Prune growers grow prunes. … Continue reading
Adapted from the articles “When will harvest start in 2011?” by Franz Niederholzer, UC Farm Advisor, Colusa and Sutter/Yuba Counties and Bill Krueger, UC Farm Advisor, Glenn County and “Using Spring Weather Data to Predict Harvest Date for “Improved French” … Continue reading
Adapted from the article “Frost Protection” by Joe Connell, UC Farm Advisor, Butte County in the February 2011 Sacramento Valley Prune News Mild, radiation frosts occur on still, clear nights, often with the development of a strong inversion. Under these … Continue reading
Adapted from the articles “Chill model comparison – Why two models judged last winter very differently” by Katherine Jarvis-Shean, UCCE Farm Advisor Sacramento, Solano and Yolo Counties and “Low Chill Winter?” by Franz Niederholzer, UC Farm Advisor, Colusa/Sutter/Yuba Counties in … Continue reading
Adapted from the article “Using a high oil rate before bloom: Why do it?” by Franz Niederholzer, UC Farm Advisor, Colusa/Sutter/Yuba Counties in the October 2010 Sacramento Valley Prune News A high rate of horticultural oil in a dormant spray … Continue reading
Adapted from the articles “Heat at Bloom Update” by Franz Niederholzer, UC Farm Advisor, Colusa/Sutter/Yuba Counties and “High Temperatures at Bloom Reduce Fruit Set” by Carolyn DeBuse, UC Farm Advisor, Solano/Yolo Counties and Franz Niederholzer, UC Farm Advisor, Sutter/Yuba Counties … Continue reading
Adapted from the article “Fall spray for prune aphid management” by Franz Niederholzer, UC Farm Advisor, Colusa/Sutter/Yuba Counties in the Sacramento Valley Prune News, October 2012 Prune aphids – mealy plum and/or leaf curl plum aphid – are key pests … Continue reading
Adapted from the article “A new season – When to begin irrigating and how much water to apply?” by Richard P. Buchner & Allan E. Fulton, UCCE Farm Advisors, Tehama County in the April 2011 Sacramento Valley Prune News Growth … Continue reading