Effects of release rates on the range of attraction of carbon dioxide to some southwestern Ontario mosquito species.
The effects of release rates of 0, 250, 500, 1,000 and 4,000 ml/min on the range of attraction of carbon dioxide to some southwestern Ontario mosquito species was determined using ramp traps placed at 3, 7, 11, 15 and 19 m from a central pressurized cylinder. For female Aedes vexans, spring Aedes spp. and Anopheles walkeri, an increase in the release rate of CO2 from 1,000 to 4,000 ml/min resulted in extension of the range of attractiveness from between 3-7 m to between 7-11 m; rates of 500 and 250 ml/min did result in an increase in number of mosquitoes in the traps. Correspondingly, significantly more mosquitoes were caught in the traps at 3 m when the rate was increased to 1,000 ml/min from 500 ml/min. For Ae. vexans, 4,000 ml/min of CO2 attracted more mosquitoes to the 7 m traps than 1,000 ml/min. In this work carbon dioxide did not result in an increase in the number of Culiseta inornata, Cs. morsitans and Culex restuans and Cx. pipiens in the traps.
McIver
S B
SB
Department of Environmental Biology, University of Guelph, Ontario, Canada.
McElligott
P E
PE
D000818:Animals; D001522:Behavior, Animal; D002245:Carbon Dioxide; D009033:Culicidae; D003627:Data Interpretation, Statistical; D004772:Entomology / Q000295:instrumentation*; D005260:Female; D009864:Ontario; D011156:Population Density; D012212:Rheology
D002245:Carbon Dioxide