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J Econ Entomol

Title:		"Mating Disruption or Mass Trapping, Compared With Chemical Insecticides, for Suppression of Chilo suppressalis (Lepidoptera: Crambidae) in Northeastern China"
Author(s):		Chen RZ; Klein MG; Sheng CF; Li QY; Li Y; Li LB; Hung X;
Address:		"College of Agronomy, Jilin Agricultural University, 2888 Xincheng Rd., Changchun 130118, Jilin Province, China. Department of Entomology, The Ohio State University, Wooster, OH 44691. Present address: P.O. Box 1104 Heber, AZ 85928. klein.10@osu.edu. State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China. Jilin Agricultural Academy of Science, Cai Yu Rd., Changchun 130118, Jilin Province, China"
Journal Title:		J Econ Entomol
Year:		2014
Volume:		107
Issue:		5
Page Number:		1828 - 1838
DOI:		10.1603/EC14148
ISSN/ISBN:		0022-0493 (Print) 0022-0493 (Linking)
Abstract:		"Asiatic rice borer, Chilo suppressalis (Walker), larvae cause extensive crop losses worldwide. Because chemical control is problematic, and sex pheromone applications are a valuable management tactic in China, judicious timing of a minimal density of pheromone dispensers is important in developing a cost-effective C. suppressalis IPM program. During June-October in 2011, 20, 30, 40, and 50 dispensers per hectare for mass trapping, and 200, 300, 400, and 500 dispensers per hectare for mating disruption were placed in northeastern China rice fields. Based on those results, only the two highest mass trapping densities were used in 2012-2013. The 40, 50, and 500 dispenser densities reduced egg masses to <2.0 per 100 tillers, compared with >9.5 in the insecticide-treated plots in 2011-2013. The reduced oviposition resulted in >85% reduction of larval damage, which was comparable with the currently used insecticides, dimethoate and deltamethrin (0.35 kg/ha), which gave no egg reduction, but asymptotically equal to80 and 89% reduction in larval damage. The 40 and 500 densities are recommended to Chinese rice farmers for mass trapping and mating disruption programs, respectively"
Keywords:		Animals Dimethoate/pharmacology Female Insect Control/*methods Insecticides/*pharmacology Larva/drug effects/growth & development/physiology Male Moths/drug effects/growth & development/*physiology Nitriles/pharmacology Oryza/growth & development Oviposit;
Notes:		"MedlineChen, Ri-Zhao Klein, Michael G Sheng, Cheng-Fa Li, Qi-Yun Li, Yu Li, Lan-Bing Hung, Xing eng Comparative Study Research Support, Non-U.S. Gov't England 2015/08/27 J Econ Entomol. 2014 Oct 1; 107(5):1828-38. doi: 10.1603/EC14148"