Georgia Farm Bureau's Leadership Alert - September 12, 2012

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September 12, 2012

www.gfb.org

Vol. 30 No. 37

ALTERNATE BEARING A KEY TOPIC AT PECAN FALL FIELD DAY Nearly 300 pecan growers and other interested individuals attended the Georgia Pecan Growers Association (GPGA) Fall Pecan Field Day, held Sept. 6 at the USDA’s Agricultural Research Service Southeastern Fruit and Tree Nut Research Station in Byron. The event provided information on pecan research into the alternate bearing phenomenon, pest and disease control, and crop insurance for pecans. Alternate bearing, which refers to the occurrence of year-to-year fluctuations in pecan tree production, has been moderated through advances in cultivation techniques, according to Bruce Wood, the supervising horticulturist at the Byron lab. “On an individual tree basis, it still happens, but on an orchard basis, a population of tree basis, it's not as bad as it was,” Wood said. “The key to reducing alternate bearing … one, it’s variety dependent, but it’s also dependent on controlling the stress levels that the trees are exposed to and the orchard management. So it’s critical to control insect, disease, pest, water, sunlight, nutrient elements, things of that nature.” GPGA President Randy Hudson said the field day has grown over the past few years due in large part to high prices generated by export demand for pecans, even with key export destinations having prohibitive tariffs in place. “The export demand has driven this crop to a whole different level. If you look here today you're going to see a lot of young people,” Hudson said. “These young people are getting in this industry because there’s a future here and the future is higher prices.” Risk Management Agency Valdosta Field Office Director Diane Amera discussed upcoming changes in crop insurance for pecans. She said that for 2013, the coverage structure will be changing from a two-year module to a one-year module. In 2014 the structure will revert to the two-year module. Amera advised growers to contact their crop insurance agents for details. Research Entomologist David Shapiro-Ilan discussed methods of pecan weevil control, including the use of bacteria to combat weevils while reducing the use of chemical pesticides. Wood discussed management approaches to minimize alternate bearing and return flowering, including techniques to improve the management of upper canopy on tall trees. Research plant pathologist Clive Bock discussed the biology and epidemiology of pecan scab and approaches to scab control. These included use of scab-resistant cultivars and the application of fungicides. For more information on the Byron lab research, visit http://tinyurl.com/8mb7xsd.


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