Home Tag Archives: UC Cooperative Extension

Tag Archives: UC Cooperative Extension

Study Verifies Low Food-Safety Risk at CA Farmers Markets

A new study by University of California, Davis, researchers finds a low risk of contamination of foodborne pathogens on produce and meat at Northern California certified farmers markets, but still finds cause for some concern. The study, published in the Journal of Food Protection, examined the prevalence of Salmonella on meat and produce, as well as the prevalence of generic E. coli on produce. …

Glassy-Winged Sharpshooter Numbers Threaten Resurgence of Pierce’s Disease in SJV Grapes

When it comes to Pierce’s Disease and Glassy-Winged Sharpshooter, it’s critical for growers to pay attention to both the disease and the vector.  Although collaborative efforts within the grape industry have kept disease levels down in recent years, population levels of the Glassy-Winged Sharpshooter have been elevating in the San Joaquin Valley. Watch this brief interview with UC Cooperative Extension …

How to Prevent Grape Bunch Rot

At Malcolm Media’s recent Grape, Nut & Tree Fruit Expo, UCCE Viticulture Advisor Gabriel Torres provided an in-depth presentation on sour rot prevention and management. If you missed his presentation or would like a refresher, watch this brief interview as Gabriel provides of some key points growers should consider in season-long prevention/management of this crop spoiling complex. Please thank this …

UC Cooperative Extension Investigates the Reality of Steam-Weeding Lettuce Fields

Despite the tremendous need, there are currently no preemergence herbicides that are organic-compliant. Steam injected into the soil such that the soil temperatures reach >140°F for 15-20 minutes will kill weed seed in the soil. The effect of this reduction in the seedbank viability results weed control in the treated area that persists for several weeks or months, similar to …

Protecting your Almonds from Ant Damage

Almonds sat on the ground to dry a little longer this season due to the abnormal drop in temperatures and increase in humidity at harvest. This provided a longer window of opportunity for ants to feast on the valuable product.  Regardless of what the future brings, there will always be ants in the orchard and now would be a good …

How to Design a New Pistachio Orchard

Considering planting a new pistachio orchard? What is the ideal row/tree spacing? How many male pollenizer trees will you need? Should you plant on berms or not? These are just a few of the questions addressed by UC Cooperative Extension Farm Advisor Craig Kallsen in this video.  Watch his brief interview and read more about growing pistachios in Pacific Nut …

Fennimore Receives 2020 EurAgEng Outstanding Paper Award

Steve Fennimore, UC Davis Plant Sciences faculty member and UC Cooperative Extension weed specialist, and colleagues received the 2020 EurAgEng Outstanding Paper Award for the paper, “Crop Signalling: A Novel Crop Recognition Technique for Robotic Control,” which was published in Biosystems Engineering. The research represents a breakthrough in differentiating weeds from crops using machine vision systems. The technology could help California growers address challenges in …

Progress on Navel Orangeworm Sterile Insect Technique Research

Most tree nut growers have heard about the sterile insect technique research underway to combat Navel Orangeworm, the number one pest threat to almond and pistachio growers.  But what is the progress on this program and how soon can we expect to see these sterile insects released on a large scale to support California growers?  Watch this brief interview with …

A New Effective Way to Control Mealybugs in the Vineyard

Got vine mealybug in the vineyard? Consider mating disruption in your IPM program.  Watch this brief interview with Kent Daane from the UC Cooperative Extension as he shares how it works and how effective their research trials have been throughout the state in utilizing this technology.  Read more about vineyard pest management in American Vineyard Magazine.

Rhonda Smith “Heroine of the Vineyards” Wraps up Career

Rhonda Smith, who has been heralded as the “heroine of the vineyards” for her groundbreaking work in helping combat the parade of problems that have plagued Sonoma County grapevines – and alarmed growers, plans to retire July 1. During her nearly 34 years as a UC Cooperative Extension viticulture advisor, Smith steadily emerged as Sonoma County’s expert on all things …

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