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Walnuts



Crop and Marketing Predictions from the 2019 World Nut and Dried Fruit Congress


More than 60 countries were represented at this year’s World Nut and Dried Fruit Congress, which was held in Boca Raton, Florida. Nearly 1,300 people attended, many of them presidents and CEOs from the world’s leading nut and dried fruit companies and organizations. The Congress, or INC (International Nut and Dried Fruit Council), as it is affectionately called, is the largest international gathering of its kind. It’s an annual event for leaders in the industry—big marketers, customers and producers—to network, search out opportunities, and enjoy relaxing social activities with like-minded people. At these congresses, attendees receive crop forecasts, updates on industry statistics, as well as updates on marketing and consumer demand. Hazelnuts Troy Johnson, Managing Director of Laurel Foods, has been a regular attendee and contributor at INC. “My first INC was Barcelona in 2001 and I’ve been to everyone one since with the exception of South Africa in 2002....

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Walnuts

INDUSTRY ALERT | USDA Announces Details on Support for Growers


Today, USDA Agriculture Secretary Sonny Perdue announced funding for walnut growers impacted by unjustified tariff retaliation and trade disruption.

The funds are being made available through the Market Facilitation Program (MFP), authorized under the Commodity Credit Corporation (CCC) Charter Act and administered by the Farm Service Agency (FSA). The funding is part of the trade relief package, announced by the United States Department of Agriculture (USDA) in May, which includes $14.5 billion in direct payments to producers and well as $100MM in Agriculture Trade Promotion funds for export market development. To date, the CWC has received $3.6 MM in ATP funds for additional export activities to offset losses result from trade disruption.

How will the payments be administered?

California walnut growers will receive payment based on 2019 planned acres of production. MFP payments will be made in up-to three tranches, with the...

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Distribution Uniformity:

By Dani Lightle, UC Cooperative Extension Orchard Systems Advisor, Glenn, Butte & Tehama Counties

What is Distribution Uniformity? Distribution Uniformity (DU) is a measure of how uniformly water is being applied across the orchard, or whether certain parts of the orchard are receiving more water than others. It is a measure of the irrigation system. DU is a different measure than irrigation efficiency, which is a measurement of how well the applied water matches the crop water requirements. Irrigation efficiency is a measurement of how well you—the irrigator—applies a correct amount of water at an appropriate frequency. However, it is impossible to have a high irrigation efficiency without also having high distribution uniformity (Figure 1). [caption id="attachment_1928" align="aligncenter" width="640"] Figure 1. Illustrations of irrigation uniformity and efficiency. Darker brown soil indicates the wetted soil by the irrigation system, while light brown soil indicates dry soil. a) Water is not applied uniformly, nor efficiently. Trees are getting...

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Anaerobic Soil Disinfestation in Walnuts

By Cecilia Parsons Associate Editor

Pulling and replanting a walnut orchard presents many challenges. Planning for treatment of orchard soils to ensure a healthy new orchard includes identifying problems ahead of time and choosing appropriate prevention. Chemical fumigation has been standard practice for replanting orchards, but alternatives are being studied. Though not currently used in commercial walnut production, there have been some large trials to determine if anaerobic soil disinfestation (ASD) is useful in suppressing soilborne pathogens and pests when replanting walnut orchards. Trials were conducted at the UC Kearney Agriculture and Research Center. The practice is being studied as an alternative to using chemical fumigants due to increased restrictions on their use. Methyl bromide has been the fumigant of choice for many years, killing both soil pathogens and pests along with weed seeds. Anaerobic soil disinfestation is a biologically based integrated management strategy for soilborne diseases that aims for sustainable production without the use...

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Update on Sterile Insect Program for Control of Navel Orangeworm

By Houston Wilson, Asst. Coop. Extension Specialist, Kearney Ag. Center, Dept. Entomology, UC Riverside
and Chuck Burks, Research Entomologist, USDA-ARS, San Joaquin Valley Agricultural Sciences Center

Sterile insect technique (SIT) makes use of large numbers of sterile insects which are released into wild populations as part of an area-wide integrated pest management (IPM) control strategy. Insects are typically mass-reared in a controlled environment and then ionizing radiation (e.g. x-rays, gamma rays) is used to induce genetic mutations that lead to sterility. The basic idea is that introduction of sterilized individuals into the wild population will limit the successful reproduction of wild individuals and lead to an overall reduction or even eradication of the target pest population (Knipling 1955). Mating with sterile individuals can reduce populations by either directly blocking reproduction or through inherited sterility in which offspring are actually produced but are themselves sterile (North 1975). Releases can include both males and females, although some programs utilize just one sex, and this is typically due to specific biological or ecological requirements.   The concept of using...

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