Effects of new field resistant cultivars and in-furrow applications of phorate insecticide on tomato spotted wilt of peanut |
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| Affiliation: | 1. Department of Plant Pathology, The University of Georgia, Coastal Plain Experiment Station, Tifton, GA 31793-5766, USA;2. Department of Entomology, The University of Georgia, Coastal Plain Experiment Station, Tifton, GA 31793-5766, USA;3. Agronomy Department, The University of Florida, North Florida Research and Education Center, Marianna, FL 32446, USA;4. Crop Genetics and Breeding Research Unit, USDA-ARS, Coastal Plain Experiment Station, Tifton, GA 31793, USA;5. Department of Crop and Soil Sciences, The University of Georgia, Coastal Plain Experiment Station, 31793 USA;1. Molecular Virology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India;2. Department of Biotechnology, Jamia Hamdard University, New Delhi, Delhi 110062, India;1. Protein Chemistry Unit, Faculté de Médecine, Université Libre de Bruxelles (ULB), Brussels, Belgium;2. Immunobiology Clinics, Erasme Hospital, Université Libre de Bruxelles (ULB), Brussels, Belgium;3. Laboratory of Vaccinology and Mucosal Immunity, Faculté de Médecine, Université Libre de Bruxelles (ULB), Brussels, Belgium;1. Tidewater Agricultural Research & Extension Center (AREC), Virginia Tech, Suffolk, VA 23437, USA;2. Department of Plant Pathology, Physiology and Weed Science, Virginia Tech, Blacksburg, VA 24061, USA;1. Department of NanoBiotechnology, NanoGlycobiology Unit, Universität für Bodenkultur Wien, Muthgasse 11, 1190 Vienna, Austria;2. Department of Pathophysiology and Allergy Research, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria;3. Department of Pediatrics, Respiratory and Allergic Disease Division, Medical University Graz, Auenbruggerplatz 34, 8036 Graz, Austria;4. Department of Dermatology, University Hospital St. Pölten, Karl Landsteiner University of Health Sciences, Propst-Führer-Strasse 4, 3100 St. Pölten, Austria;1. Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Manfredi, CC 5988 Córdoba, Argentina;2. Instituto de Fisiología y Ecología Vinculado a la Agricultura del Consejo Nacional de Investigaciones Científicas y Tecnológicas (IFEVA-CONICET), Facultad de Agronomía, Universidad de Buenos Aires, Buenos Aires, Argentina;1. Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata 573-0101, Japan;2. Life Science Materials Laboratory, ADEKA Corp., Tokyo 116-8554, Japan;3. Department of Gastroenterology and Hepatology, Osakafu Saiseikai Nakatsu Hospital, Osaka 530-0012, Japan;4. Division of Inflammatory Bowel Disease, Digestive Disease Center, Tadzuki Kouhuukai Kitano Hospital, Osaka 534-8680, Japan;5. Division of Endoscopy, Kyoto University Hospital, Kyoto 606-8507, Japan;6. Department of Radiology, Vanderbilt University Institute of Imaging Science, Nashville, TN 37232-2310, USA;7. Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo 060-0061, Japan |
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| Abstract: | Field experiments were conducted at Tifton, Georgia from 2008 to 2014 to determine the effects of new peanut (Arachis hypogaea) cultivars and in-furrow applications of phorate insecticide on severity of tomato spotted wilt (TSW) caused by Tomato spotted wilt virus. Several cultivars, including Florida-07, Georgia-06G, Georgia-07W, Georgia Greener, and Tifguard, had final incidence of TSW that were less than that of Georgia Green. In-furrow applications of phorate insecticide reduced incidence of TSW in Georgia Green in three experiments in which that cultivar was included. In-furrow application of phorate insecticide reduced incidence of TSW in most cases where incidence in nontreated plots was 10% or higher. Cultivars Georganic, and Georgia-10T, had final incidence of TSW that was lower than that of Georgia-06G, or Florida-07 within nontreated plots across 2011–2012. Georgia-10T and Georgia-12Y had final incidence that was lower than that of Georgia-06G, Georgia-07W, Georgia-09B and Georgia Greener across insecticide treatments in 2013. In-furrow application of phorate increased yields across cultivars in 2008–2009, and increased yield of Georgia-09B in 2010. In most other cases, phorate had no significant effect on yield. With higher levels of field resistance in most of these cultivars, especially those such as Georgia-12Y, benefits from use of phorate insecticide for TSW suppression were small, and typically did not result in yield increase. Based on these results, several of these cultivars should allow greater flexibility for insecticide choice for thrips management without increasing the risk of losses to TSW. |
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| Keywords: | Field resistance Integrated disease management Thrips |
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