Pistachios Archives - West Coast Nut

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Pistachios



Postharvest Pistachio To-do List


When the last truckload of pistachios rolls out of the orchard, it’s not the time to relax—it’s time to prepare for a successful harvest next year. Guidelines for postharvest pistachio management by University of California (UC) Davis researchers cover all postharvest activities necessary to ensure a quality crop for the next year. Pest control and crop advisors also have their own checklists that cover specific challenges and growing conditions in their individual orchards. Evaluate IPM Plan Since insect pests and diseases are often the cause of poor yields and quality in a nut crop, a postharvest evaluation of the current integrated pest management (IPM) plan for an orchard is in order. Spray application times, additional control activities and monitoring records prior to control and after should be reviewed. Orchard sanitation remains the cornerstone of pest management in pistachios, as it is proven to reduce numbers of navel orangeworm (NOW) in...

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Study Finds American Grown Pistachios Contain Melatonin


An analysis conducted by researchers Dr. Jack Losso and Millicent Yeboah-Awudzi at Louisiana State University in partnership with American Pistachio Growers found that American pistachios contain significant amounts of melatonin, much higher than most fruits, vegetables, cereals, legumes and seeds. Melatonin Research in Pistachios Melatonin is a hormone produced by the pineal gland to regulate the body's internal biological clock and control daily sleep cycles. Melatonin supplements are commonly used by people with insomnia or with irregular sleep patterns which may arise from frequent travel or irregular work schedules, among other causes. The study was significant due to the fact it showed pistachios contain relatively high levels of melatonin compared to other foods and that researchers identified two protective bioactive compounds, lunasin and the Bowman-Birk Inhibitor, which have anti-inflammatory, anti-angiogenic activity that may help manage type 2 diabetes. Additionally, researchers proposed that these compounds together, with other protective compounds found in pistachios, such as lutein, zeaxanthin...

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Don’t Forget Winter Sanitation


First flight numbers of navel orangeworm (NOW) in the Sacramento Valley overall looked low to moderate in pheromone traps, but there are some exceptions to that, according to Emily Symmes, UC Cooperative Extension Area IPM advisor, Sacramento Valley. The more severe winter could have kept first flight numbers down, Symmes continued, but also there was a more prolonged spring flight due to relatively cooler temperatures and numerous rain events, which may have appeared as lower overall abundance in NOW traps during the early flights. “I don’t necessarily think this is a low pressure year from an overall perspective, especially now that we are seeing significant numbers in the third flight” Symmes said. Third and fourth flights, if a fourth flight arrives, are always larger as a result of population build-up, and heat units increasing into the summer reduce the generation time, Symmes said. Trapping  Many growers and pest control...

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LFB in Control for Almonds and Pistachios


When you see adult leaffooted bugs (LFB) in your almond or pistachio orchards, it is time to take action. There is no established threshold for economic damage caused by this piercing-sucking pest, said Kris Tollerup, UC Cooperative Extension area Integrated Pest Management advisor. Traps and lures for LFB are still being evaluated. Visual observation of LFB in an orchard should prompt treatment, advisors said. LFB This large insect pest is a native of California, and has been found in the San Joaquin Valley from Butte to Kern counties. While LFB may be found in most valley locations, there are specific environmental conditions that allow for populations to build. Those conditions include riparian areas, protected overwintering sites and host plants. Almond and pistachio orchards adjacent to those sites can become infested and are vulnerable to crop loss or damage from LFB. Tollerup said he has seen a 50 percent almond crop...

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Pistachio Prices Hinge on Export Expectations


Off and on. That rhythm is the cadence for pistachio yields. On and on is what exports need to be. Last year two-thirds of U.S. pistachios crossed borders or sailed oceans. California producers have planted pistachio trees at a faster rate than any other tree nut variety over the last decade. Watching production grow, the RaboResearch team developed a supply-and-demand analytical tool to help growers anticipate prices levels for the next five years. Supply Growth is Set to Continue Pistachio bearing acreage grew more than twofold over the last decade, making pistachios California’s fastest-growing tree nut in terms of acreage. From 2024, bearing area will sit at about 370,000 acres—roughly a 40 percent increase (see Figure 1). Industry estimates show that average pistachio net returns per acre exceed those obtained in competing nuts, creating incentives for new plantings. A relevant proportion of pistachio’s planted acreage is located in the Southern...

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