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Pest/Disease Management

$12 Million to Eradicate an Invasive Rodent of Unusual Size

You may have heard of them in the comedy film Princess Bride as “Rodents of Unusual Size”, but this is the real thing — only not so large and formidable.  Nutria were originally introduced into the United States as part of the fur trade in the late 1800s, but were eradicated from California in the 1970s.  They made a sudden …

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 …

CA Court Rules Insects Not Protected by Endangered Species Act

The California Superior Court in Sacramento has ruled the California Endangered Species Act (CESA) does not cover insects and that bees cannot be classified as fish. The Court issued its final ruling on Nov. 19, 2020. The Almond Alliance of California, in collaboration with seven other agricultural groups, filed suit with California Fish and Game Commission in response to a …

Grower Survey to Address Future Innovations in Weed Management

Weeds can be a significant problem in berries, tree fruits, tree nuts, and vine crops (e.g. grapes, hops, etc.) especially after transplanting and during flowering and fruit and nut set. Herbicides are a primary tool for managing weeds, even though the evolution of herbicide resistance has limited the utility of many products and off-target movement can sometimes result in damage …

Main Fungal Canker Diseases Affecting California Almonds

In California, fungal canker diseases have long been known to affect almond trees. However, they have become an increasing concern to growers in recent years as they are affecting a greater extent of young trees, eventually resulting in significant tree losses. Canker diseases can also become prevalent in mature orchards, impacting yield, the lifespan of trees, production costs and overall profitability of …

Five Steps for Ag Processors to Adapt their COVID-19 Incident Response Approach

COVID-19 is a health crisis in the United States but major industries, like agriculture, chemical manufacturing, oil and gas exploration and production, all need to keep functioning as essential businesses in the midst of the crisis.  The response to COVID-19 has core parallels to major industrial accident response, which involves deploying the right resources for the task.  Every incident, be …

Wildfire Impact on CA Almond Harvest & Crop Update

Are California almond growers really going to reach their record 3 billion pound crop this year? How have the wildfires impacted the harvest season? What kind of pest pressure levels are growers experiencing this year? What should almond growers expect at the virtual Almond Board Conference this year?  Watch this brief interview with Richard Waycott from the Almond Board of …

Orchard Sanitation is key to a Quality Almond Crop

Navel orangeworm (NOW) is the key pest of almonds, causing more income loss due to reject nuts than any other pest. Pesticide sprays, alone, cannot control this pest. A combination of several specific practices has been proven to reduce NOW damage and limit loss of grower income. These practices are winter sanitation, timely harvest and pesticide sprays (where needed). Mating …

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