Entomology Commons^™

Responses Of Amblyomma Americanum And Dermacentor Variabilis To Odorants That Attract Haematophagous Insects, A. L. Carr, R. M. Roe, C. Arellano, D. E. Sonenshine, C. Schal, C. S. Apperson

Biological Sciences Faculty Publications

Carbon dioxide (CO₂), 1-octen-3-ol, acetone, ammonium hydroxide, L-lactic-acid, dimethyl trisulphide and isobutyric acid were tested as attractants for two tick species, Amblyomma americanum and Dermacentor variabilis (Acari: Ixodidae), in doseresponse bioassays using Y-tube olfactometers. Only CO₂, acetone, 1-octen-3-ol and ammonium hydroxide elicited significant preferences from adult A. americanum, and only CO₂ was attractive to adult D. variabilis. Acetone, 1-octen-3-ol and ammonium hydroxide were separately evaluated at three doses against CO₂ (from dry ice) at a field site supporting a natural population of A. americanum nymphs and adults. Carbon dioxide consistently attracted the …