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Pest/Disease Management

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 …

Identifying Insect Pest Damage Through Harvest Sampling

With almond and walnut harvest underway, it is a good time to review harvest nut sampling strategy and protocols for the best estimation of field loss by common pests. It is a general understanding that the grade sheet from your processers only represents about half of what is  going on in the field. Also, the whole sum percent damage from …

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 …

More USDA Walnut Purchases Requested Amidst Pandemic

Representative Josh Harder (CA-10) today led a bipartisan letter to United States Department of Agriculture (USDA) Secretary Sonny Perdue, asking him to use his authority to utilize all purchasing authorities to buoy the struggling walnut industry. The walnut industry – based exclusively in California – has seen prices plummet in the last two years to near or below the costs …

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