title: Mating Disruption or Mass Trapping, Compared With Chemical Insecticides, for Suppression of Chilo suppressalis (Lepidoptera: Crambidae) in Northeastern China.
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 ≍80 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.
authors: College of Agronomy, Jilin Agricultural University, 2888 Xincheng Rd., Changchun 130118, Jilin Province, China.
authors: Ri-Zhao
authors: RZ
authors: Chen
authors: Department of Entomology, The Ohio State University, Wooster, OH 44691. Present address: P.O. Box 1104 Heber, AZ 85928. klein.10@osu.edu.
authors: Michael G
authors: MG
authors: Klein
authors: State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
authors: Cheng-Fa
authors: CF
authors: Sheng
authors: Jilin Agricultural Academy of Science, Cai Yu Rd., Changchun 130118, Jilin Province, China.
authors: Qi-Yun
authors: QY
authors: Li
authors: College of Agronomy, Jilin Agricultural University, 2888 Xincheng Rd., Changchun 130118, Jilin Province, China.
authors: Yu
authors: Y
authors: Li
authors: College of Agronomy, Jilin Agricultural University, 2888 Xincheng Rd., Changchun 130118, Jilin Province, China.
authors: Lan-Bing
authors: LB
authors: Li
authors: College of Agronomy, Jilin Agricultural University, 2888 Xincheng Rd., Changchun 130118, Jilin Province, China.
authors: Xing
authors: X
authors: Hung
mesh_terms: D000818:Animals; D004117:Dimethoate / Q000494:pharmacology; D005260:Female; D007300:Insect Control / Q000379:methods*; D007306:Insecticides / Q000494:pharmacology*; D007814:Larva / Q000187:drug effects / Q000254:growth & development / Q000502:physiology; D008297:Male; D009036:Moths / Q000187:drug effects / Q000254:growth & development / Q000502:physiology*; D009570:Nitriles / Q000494:pharmacology; D012275:Oryza / Q000254:growth & development; D010058:Oviposition / Q000187:drug effects; D010063:Ovum / Q000187:drug effects; D010572:Pest Control, Biological / Q000379:methods*; D010675:Pheromones / Q000494:pharmacology*; D011722:Pyrethrins / Q000494:pharmacology
chemical_list: D007306:Insecticides; D009570:Nitriles; D010675:Pheromones; D011722:Pyrethrins; C010411:insect attractants; C017180:decamethrin; D004117:Dimethoate
keywords: Asiatic rice borer; rice damage; rice stem borer; sex attractant; striped stem borer