Abstract
Base-line data on acaricide susceptibility of larvae and of larvae and nymphs of the tropical bont tick,Amblyomma variegatum (Fabricius), from Puerto Rico and Guadeloupe were collected on 14 and six compounds, respectively. Nymphs 7–8 weeks old from Puerto Rico and Guadeloupe, and larvae 3–4 weeks old from Guadeloupe, were exposed for 24 or 48 h to residues of acetone dilutions of technical-grade or commercial formulations of acaricides on disposable glass pipettes. Effectiveness of the acaricides in killing nymphs (lc 50) from Guadeloupe and Puerto Rico ranged from 0.0001% for deltamethrin to 0.269% for malathion. For Puerto Rico, the susceptibility to toxaphene and amitraz, but not to dioxathion, increased with increasing age of nymphs. Nymphs from Guadeloupe were 9.5 times more susceptible to chlorpyrifos than nymphs from Puerto Rico. The susceptibility of larvae from Guadeloupe to acaricides tested ranged fromlc 50 0.000012% for deltamethrin to 0.0141% for ethion. There was no evidence of development of acaricide resistance in ticks from Guadeloupe or Puerto Rico.
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Barré, N. and Garris, G.I. 1990. Biology and ecology ofAmblyomma variegatum (Acari: Ixodidae) in the Caribbean: Implications for a regional eradication program. J. Agric. Entomol., 7: 1–9.
Barré, N., Uilenberg, G., Morel, P.C. and Camus, E., 1987. Danger of introducing heartwater onto the American mainland: Potential role of indigenous and exoticAmblyomma ticks. Onderstepoort J. Vet. Res., 54: 405–417.
Daum, R.J., 1970. Revision of two computer programs for probit analysis. Bull. Entomol. Soc. Am., 16: 10–15.
Garris, G.I., 1984. Colonization and life cycle ofAmblyomma variegatum (Acari: Ixodidae) in the laboratory in Puerto Rico. J. Med. Entomol., 21: 86–90.
Garris, G.I., Bokma, B.H., Strickland, R.K. and Combs, G.P., 1989. An evaluation of the eradication program forAmblyomma variegatum (Acari: Ixodidae) on Puerto Rico. Exp. Appl. Acarol., 6: 67–76.
Hourrigan, J.L., Strickland, R.K., Kelsey, O.L., Knisely, B.E., Crago, C.C., Walker, S. and Gilhooly, D.J., 1969. Eradication efforts against tropical bont tick,Amblyomma variegatum, in the Virgin Islands. J. Am. Vet. Med. Assoc., 154: 540–545.
Hughes, G.A., Robertson, J.L. and Savin, N.E., 1987. Comparison of chemical effectiveness by the multinomial logit technique. J. Econ. Entomol., 80: 18–28.
Kigaye, M.K. and Matthysse, J.G., 1973. Testing acaricide susceptibility of the brown dog tick,Rhipicephalus sanguineus (Latreille, 1806), with a disposible pipette method. Bull. Epizoot. Dis. Afr., 21: 429–435.
Knipling, E.F., 1979. The basic principles of insect population suppression and management. USDA Agric. Handb. 512: 659 pp.
Lourens, J.H.M., 1979. Genetic basis for organochlorine resistance inAmblyomma variegatum and information on the susceptibility onA. lepidum to organochlorine acaricides. J. Econ. Entomol., 72: 790–793.
Lourens, J.H.M., 1980. Susceptibility to cholinesterase-inhibiting acaricides of organochlorineresistant and susceptible strains ofAmblyomma variegatum (Acari: Ixodidae) and an organochlorine-susceptible strain ofA. lepidum. J. Med. Entomol., 17: 375–379.
Wharton, R.H. and Roulston, W.J., 1970. Resistance of ticks to chemicals. Annu. Rev. Entomol., 15: 381–404.
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Garris, G.I., Barré, N. Acaricide susceptibility ofAmblyomma variegatum (Acari: Ixodidae) from Puerto Rico and Guadeloupe. Exp Appl Acarol 12, 171–179 (1991). https://doi.org/10.1007/BF01193465
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DOI: https://doi.org/10.1007/BF01193465