Efficacy of Selected Insecticide Sprays and Aerosols against the Common Bed Bug, Cimex lectularius Hemiptera: CimicidaeReportar como inadecuado




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Department of Entomology, Rutgers University, New Brunswick, NJ 08901, USA





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Academic Editor: Brian T. Forschler

Abstract We evaluated the residual efficacy of four liquid sprays and four ready-to-use aerosols that are commonly used in the U.S. against a field-collected bed bug, Cimex lectularius L., strain with moderate resistance level to pyrethroids. The four liquid sprays were: Tandem 0.1% thiamethoxam, 0.03% lambda-cyhalothrin, Temprid SC 0.05% imidacloprid, 0.025% cyfluthrin, Transport GHP 0.05% acetamiprid, 0.06% bifenthrin, and Demand CS 0.03% lambda-cyhalothrin. The four aerosols were: Alpine 0.5% dinotefuran, Bedlam 0.4% sumithrin, 1.6% MGK 264, Bedlam Plus 0.4% sumithrin, 1% MGK 264, 0.05% imidacloprid, and Phantom 0.5% chlorfenapyr. Bed bugs were confined for 4 h to treated substrates aged 24 h. Four substrates were tested: fabric, unpainted wood, painted wood, and vinyl. Bedlam, Demand CS, and Temprid SC resulted in ≤70% mortality on all tested substrates. Among the other five products, substrate type significantly affected their residual efficacy, except for Transport GHP, which caused ≥89.7% mortality regardless of the substrate. The effect of exposure time 5 min, 4 h, and 24 h on the efficacy of Transport GHP and Phantom aerosol also was evaluated. A 4 h continuous exposure to Phantom aerosol or Transport GHP residue caused similar mortality to 24 h exposure and higher mortality than 5 min exposure. View Full-Text

Keywords: Cimex lectularius; insecticide efficacy; exposure time; substrate type Cimex lectularius; insecticide efficacy; exposure time; substrate type





Autor: Changlu Wang * , Narinderpal Singh, Chen Zha and Richard Cooper

Fuente: http://mdpi.com/



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