Your source for orchard news & information in the Sacramento Valley
Storms throughout the winter and into early spring, have resulted in localized flooding in the Sacramento Valley and left standing water or shallow perched water table in many orchards in the region. This update shows the extent of above-average rainfall in different parts of the Sacramento Valley in January through March. Continue reading
Luke Milliron, UCCE Farm Advisor, Butte, Tehama, and Glenn Counties; Bob Johnson, PhD Candidate Rizzo Lab, UC Davis Plant Pathology In March of 1995 a four-day storm with winds reaching nearly 65 mph and a deluge of six-inches resulted in … Continue reading
Fully dormant walnut trees are a relatively frost tolerant crop. Fully dormant mature trees can tolerate temperatures to the low 20’s (°F) or below. However, if the first one or two freeze events have lows down to around 28° F, damage will likely ensue. Continue reading
Adapted by Luke Milliron, UCCE Orchard Systems Farm Advisor, Butte, Tehama, and Glenn Cos., Dani Lightle, UCCE Orchard Systems Farm Advisor, Glenn, Butte, and Tehama Cos., Toby O’Geen, UCCE Soil Resource Specialist, UC Davis Did you enjoy the popular UC … Continue reading
In research conducted by Themis Michailides, winter pruning (February) resulted in higher infection rates than fall pruning (October). Continue reading
I was called out in mid-July by a PCA to evaluate a single sick walnut tree. The tree was said to have unusual symptoms and be surrounded by completely healthy trees. Indeed, the tree was surrounded by healthy, uniform trees, while the single tree in question had multiple scaffolds with patches of dead leaves. Continue reading
As the bulk of your prune fertility program for the season comes to an end, it’s time to get the report card on how you did. Published July critical values established for prune by UC researchers can help guide you in your fertilization practice. Leaf analysis results help keep an orchard between excess and deficiency, which means the most efficient use of your fertilizer dollar. Continue reading
As the bulk of your almond fertility program for the season comes to an end, it’s time to get the report card on how you did. Published July critical values established for almond by UC researchers can help guide you in your fertilization practice. Continue reading
After a long and bumpy ride, Kasumin 2L has received final EPA approval and will be available for walnut blight control in 2018. Here are some do’s and don’ts for using Kasumin 2L during the blight management season. Continue reading
I am ecstatic to be working as the UC Cooperative Extension (UCCE) orchard systems Farm Advisor for Butte, Glenn, and Tehama Counties. I am based out of the Butte County Cooperative Extension Office in Oroville. Continue reading