Twelve reported mosquito attractants, alone or in combination, and 3 different types of traps were evaluated under field conditions for their attractiveness to host-seeking and oviposition-seeking female Aedes japonicus japonicus and associated woodland species in Windsor, CT, in 2010 and 2011. This study highlights the effectiveness of combining CO2 with the TrapTech® Mosquito Lure in a Centers for Disease Control and Prevention (CDC) miniature light trap for collection of Ae. j. japonicus and associated woodland mammalian-feeding mosquitoes. The TrapTech Mosquito Lure is a proprietary blend of Bedoukian Research, Inc. It contained 250 mg of R-1-octen-3-ol and 1900 mg of ammonium bicarbonate, which were slowly released from a plastic disperser. On average, 567 Ae. j. japonicus individuals were collected per trap per night in the CDC miniature light traps baited with CO2 plus TrapTech Mosquito Lure. The numbers collected in this trap were 28 times and 100 times greater than the numbers of Ae. j. japonicus collected in the CDC miniature light trap baited only with CO2 and the gravid trap baited with hay infusion, 2 commonly used traps to assess abundance of Ae. j. japonicus. The average catches of other mammalian-biting species, Ae. cinereus, Ae. triseriatus, Ae. trivittatus, Ae. vexans, Anopheles punctipennis, An. quadrimaculatus, Coquillettidia perturbans, and Culex salinarius, were all significantly greater in the CDC miniature light trap baited with CO2 plus TrapTech Mosquito Lure than in traps with CO2 alone, but their average numbers were not as large as were those of Ae. j. japonicus. These data demonstrate that the TrapTech Mosquito Lure used in combination with CO2 in a CDC miniature light trap has potential to be a versatile and simple surveillance method for Ae. j. japonicus and other species.
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