Nut Crops | West Coast Nut


Nut Crops

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Balancing Nutrient Needs after Whole Orchard Recycling

Scientists are finding that applying five ounces of nitrogen per almond tree for the first year after whole orchard recycling (WOR), or two ounces over commonly recommended rates for young trees, is sufficient to overcome the high carbon-to-nitrogen (C:N) ratio that the practice creates in soil. Further, during West Coast Nut’s virtual Almond Day 2021 presentation on June 15, Mae Culumber, nut crops farm advisor for Fresno County, said researchers are recommending that growers spoon-feed the nitrogen in doses of no more than an ounce at a time and, when possible, sprinkle granular nitrogen around trees. The findings show that...

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Soilborne Pests in Tree Nut Crops

Preserving tree health in the face of soilborne diseases and pests requires both careful management and choosing appropriate rootstock genetics for a given orchard site. In a West Coast Nut MyAgLife webinar on soilborne pests and diseases in nut crops, several experts in soilborne diseases and rootstock development shared their knowledge and experience on a number of common soilborne pathogens in walnuts and almonds, as well as breeding efforts to find solutions through resistant rootstock.   Diseases in Almonds Mohammad Yaghmour, orchard systems advisor in Kern County, said there has been a resurgence in recent years in Phytophthora, one of...

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Tree Nut Theft is Back

The theft of complete loads of finished product tree nuts is back. Some four years ago, the tree nut industry suffered more than 40 cases of theft of loads of California tree nuts totaling several million dollars. After more than four years, this past month two loads of finished product almonds were stolen using the same methods. (more…)

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Maximizing Biological Control Agents in Standard Nut Orchard Systems

There are limited numbers of pesticides coming down the pike, so preventing resistance and stretching the pesticides currently in the toolbox is critically important. Biological control can be a good solution, particularly if it reduces the number of sprays in a given season. Emily Symmes, UCCE Sacramento Valley Area IPM Advisor, said there are several things growers should know when working with beneficials in their orchards: (more…)

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Benefits of Cover Crops in Nut Orchards Depend on Site and Region

Integrating cover crops into tree nut orchards can promote soil health and dust reduction benefits, but achieving the desired results may take a reality check. The grower should consider their goals with a cover crop and how it fits into their management system, sources said. They should understand that cover crop goals are not achieved in one season and benefits from this practice may not be realized until the system has been in place for several years. As soil organic matter increases over time, cover crop viability also increases.   Choosing the Right Seed Mix Pistachio and almond growers in...

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