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1 January 2008 Susceptibility of the Bed Bug Cimex lectularius L. (Heteroptera: Cimicidae) Collected in Poultry Production Facilities to Selected Insecticides
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Abstract

Cimex lectularius L. is a widespread hematophagus insect pest around the world and is currently experiencing a reemergence as a public health pest of concern. One possible source of bed bugs to the human environment is the movement of bed bugs from poultry facilities to human structures by poultry workers. No recent studies have been conducted on the susceptibility of this insect to a wide range of insecticides. In addition, populations of bed bugs from poultry facilities have not been screened against insecticides for over 15 yr. Adult bed bugs collected from three poultry facilities in northwest Arkansas were exposed for 24 or 48 h (25°C) to glass vials treated with various dilutions of 12 insecticides dissolved in acetone to determine the concentration–response relationship. The order of toxicity, from most to least based on the LC50s was: λ-cyhalothrin, bifenthrin, carbaryl, imidacloprid, fipronil, permethrin, diazinon, spinosyn, dichlorvos, chlorfenapyr, and DDT. Significant differences in LC50 and LC90 values for diazinon was observed among the three populations due to the previous history of repeated exposure to a mixture of tetrachlorvinphos and dichlorvos over a 10 yr period when compared to the LC50s of two populations that had been exposed to the tetrachlorvinphos and dichlorvos mixture during 2–3 flock cycles. Bed bugs in each of the three populations exhibited high levels of DDT resistance, LC50 > 100,000 ppm, which confirms that resistance to this insecticide continues in bed bug populations. This study documents baseline toxicological data for 12 insecticides in three populations of bed bugs and provides the first data on bed bug susceptibility to fipronil, spinosyn, and imidacloprid.

C. Dayton Steelman, Allen L. Szalanski, Rebecca Trout, Jackie A. McKern, Cesar Solorzano, and James W. Austin "Susceptibility of the Bed Bug Cimex lectularius L. (Heteroptera: Cimicidae) Collected in Poultry Production Facilities to Selected Insecticides," Journal of Agricultural and Urban Entomology 25(1), 41-51, (1 January 2008). https://doi.org/10.3954/1523-5475-25.1.41
Accepted: 1 August 2008; Published: 1 January 2008
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