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APRD Survey

Dear Users:

We value your contribution to and use of the Arthropod Pesticide Resistance Database (APRD).

The APRD Team is conducting a Survey to gauge users experiences, our objective is to determine how the database enhances research, and to allow for users to provide feedback, suggestions and requests for potential improvements. Please take the anonymous survey using this link: Link to Survey

Thank you for your Participation,
David Mota-Sanchez
Arthropod Resistance Database Director


Reported Resistance Case(s)

Species: rhipicephalus microplus

Order Family Common Name(s) Group Host
acari ixodidae southern/tropical cattle tick MED cattle

Active Ingredient: amitraz

MOA: Octopaminergic agonist, Amitraz
Group: FORM CAS #: 33089611 Shaugnessy Code: 106201

Resistance Case(s)

Case Id Year of Report Type of Resistance Location Reference
G16843 2013 Field Evolved Resistance
Argentina--
Provincia de Salta
Castelli, M. E., Mangold, A. J., Nava, S., and Guglielmone, A. A. (2013). Determinacion de la Concentracion Letal 50 para Rhipicephalus (Boophilus) Microplus de la Formamidina (Amitraz) en Diferentes Poblaciones de la Argentina. Revista FAVE - Ciencias Veterinarias, 12 1-2.
G16841 2013 Field Evolved Resistance
Argentina--
Provincia de Salta
Castelli, M. E., Mangold, A. J., Nava, S., and Guglielmone, A. A. (2013). Determinacion de la Concentracion Letal 50 para Rhipicephalus (Boophilus) Microplus de la Formamidina (Amitraz) en Diferentes Poblaciones de la Argentina. Revista FAVE - Ciencias Veterinarias, 12 1-2.
G16952 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16960 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16959 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16958 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16957 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16956 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16955 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16954 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16953 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16961 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16951 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16950 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16946 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16945 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16943 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16993 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16962 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16963 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16964 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16966 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16970 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16971 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16973 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16975 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16976 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16977 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16979 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16981 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16982 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16983 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16984 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16992 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16991 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16990 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16989 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16988 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16987 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16986 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16434 2014 Field Evolved Resistance
India Kumar, S., Sharma, A.K., Ray, D.D., Gosh, S. (2014). Determination of discriminating dose and evaluation of amitraz resistance status in different field isolates of Rhipicephalus (Boophilus) microplus in India. Experimental and Applied Acarology, 63 413-422.
G16985 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Santos, T.R.B., Klafke, G.M., Pappen, F.G., Nizoli, L.Q., Biegelmeyer, P., and Farias, N.A.R. (2013). Comparison of three larval bioassays to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to amitraz. Colégio Brasileiro de Parasitologia Veterinária, 22 495-501.
G16435 2014 Field Evolved Resistance
India Kumar, S., Sharma, A.K., Ray, D.D., Gosh, S. (2014). Determination of discriminating dose and evaluation of amitraz resistance status in different field isolates of Rhipicephalus (Boophilus) microplus in India. Experimental and Applied Acarology, 63 413-422.
G16436 2014 Field Evolved Resistance
India Kumar, S., Sharma, A.K., Ray, D.D., Gosh, S. (2014). Determination of discriminating dose and evaluation of amitraz resistance status in different field isolates of Rhipicephalus (Boophilus) microplus in India. Experimental and Applied Acarology, 63 413-422.
G16437 2014 Field Evolved Resistance
India Kumar, S., Sharma, A.K., Ray, D.D., Gosh, S. (2014). Determination of discriminating dose and evaluation of amitraz resistance status in different field isolates of Rhipicephalus (Boophilus) microplus in India. Experimental and Applied Acarology, 63 413-422.
G16438 2014 Field Evolved Resistance
India Kumar, S., Sharma, A.K., Ray, D.D., Gosh, S. (2014). Determination of discriminating dose and evaluation of amitraz resistance status in different field isolates of Rhipicephalus (Boophilus) microplus in India. Experimental and Applied Acarology, 63 413-422.
G16439 2013 Field Evolved Resistance
India Sugimoto, N., Osakabe M. (2013). Cross-resistance between cyenopyrafen and pyridaben in the twospotted spider mite Tetranychus urticae (Acari: Trtranychidae). Pest Management Science, 70 1090-6.
G16813 2013 Field Evolved Resistance
Argentina--
Corrientes--
Santo Tome
Lovis, L., Reggi, J., Berggoetz, M., Betschart, B., and Sager, H. (2013). Determination of Acaricide Resistance in Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) Field Populations of Argentina, South Africa, and Australia with the Larval Tarsal Test. Journal of Medical Entomology, 50(2) 326-335.
G16927 2013 Field Evolved Resistance
Brazil--
Sao Paulo
Lovis, L., Mendes, M.C., Perret, J.-L., Martins, J.R., Bouvier, J., Betschart, B., and Sager, H. (2013). Use of the Larval Tarsal Test to determine acaricide resistance in Rhipicephalus (Boophilus) microplus Brazilian field populations. Veterinary Parasitology, 191 323-331.
G16127 2014 Field Evolved Resistance
Brazil--
Rio Grande do Sul--
Eldorado do Sul
Reck, J., Klafke, M. K., Webster, A., Dall, B., Scheffer, R., Souza, A., Corassini, V. B., Vargas, R., Silveira dos Santos, J., Ricardo, J., Martins, S. (2014). First report of fluazuron resistance in Rhipicephalus microplus: A field tick population resistant to six classes of acaricides. Veterinary Parasitology, 201 128-136.
G16831 2013 Field Evolved Resistance
Argentina--
Corrientes--
Santo Tome
Cutulle, C., Lovis, L., D'Agostino, B. I., Balbiani, G. G., Morici, G., Citroni, D., Reggi, J., and Caracostantogolo, J. L. (2013). In vitro diagnosis of the first case of amitraz resistance in Rhipicephalus microplus in Santo Tome (Corrientes), Argentina. Veterinary Parasitology, 192 296-300.
G16926 2013 Field Evolved Resistance
Brazil--
Sao Paulo
Lovis, L., Mendes, M.C., Perret, J.-L., Martins, J.R., Bouvier, J., Betschart, B., and Sager, H. (2013). Use of the Larval Tarsal Test to determine acaricide resistance in Rhipicephalus (Boophilus) microplus Brazilian field populations. Veterinary Parasitology, 191 323-331.
G16928 2013 Field Evolved Resistance
Brazil--
Mato Grosso do Sul
Lovis, L., Mendes, M.C., Perret, J.-L., Martins, J.R., Bouvier, J., Betschart, B., and Sager, H. (2013). Use of the Larval Tarsal Test to determine acaricide resistance in Rhipicephalus (Boophilus) microplus Brazilian field populations. Veterinary Parasitology, 191 323-331.
G16929 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Lovis, L., Mendes, M.C., Perret, J.-L., Martins, J.R., Bouvier, J., Betschart, B., and Sager, H. (2013). Use of the Larval Tarsal Test to determine acaricide resistance in Rhipicephalus (Boophilus) microplus Brazilian field populations. Veterinary Parasitology, 191 323-331.
G16930 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Lovis, L., Mendes, M.C., Perret, J.-L., Martins, J.R., Bouvier, J., Betschart, B., and Sager, H. (2013). Use of the Larval Tarsal Test to determine acaricide resistance in Rhipicephalus (Boophilus) microplus Brazilian field populations. Veterinary Parasitology, 191 323-331.
G16931 2013 Field Evolved Resistance
Brazil--
Sao Paulo
Lovis, L., Mendes, M.C., Perret, J.-L., Martins, J.R., Bouvier, J., Betschart, B., and Sager, H. (2013). Use of the Larval Tarsal Test to determine acaricide resistance in Rhipicephalus (Boophilus) microplus Brazilian field populations. Veterinary Parasitology, 191 323-331.
G16932 2013 Field Evolved Resistance
Brazil--
Rio Grande do Sul
Lovis, L., Mendes, M.C., Perret, J.-L., Martins, J.R., Bouvier, J., Betschart, B., and Sager, H. (2013). Use of the Larval Tarsal Test to determine acaricide resistance in Rhipicephalus (Boophilus) microplus Brazilian field populations. Veterinary Parasitology, 191 323-331.
G16925 2013 Field Evolved Resistance
Brazil--
Sao Paulo
Lovis, L., Mendes, M.C., Perret, J.-L., Martins, J.R., Bouvier, J., Betschart, B., and Sager, H. (2013). Use of the Larval Tarsal Test to determine acaricide resistance in Rhipicephalus (Boophilus) microplus Brazilian field populations. Veterinary Parasitology, 191 323-331.
G16924 2013 Field Evolved Resistance
Brazil--
Sao Paulo
Lovis, L., Mendes, M.C., Perret, J.-L., Martins, J.R., Bouvier, J., Betschart, B., and Sager, H. (2013). Use of the Larval Tarsal Test to determine acaricide resistance in Rhipicephalus (Boophilus) microplus Brazilian field populations. Veterinary Parasitology, 191 323-331.
G16832 2013 Field Evolved Resistance
Argentina--
Corrientes--
Santo Tome
Cutulle, C., Lovis, L., D'Agostino, B. I., Balbiani, G. G., Morici, G., Citroni, D., Reggi, J., and Caracostantogolo, J. L. (2013). In vitro diagnosis of the first case of amitraz resistance in Rhipicephalus microplus in Santo Tome (Corrientes), Argentina. Veterinary Parasitology, 192 296-300.
G16814 2013 Field Evolved Resistance
Argentina--
Corrientes--
Santo Tome
Lovis, L., Reggi, J., Berggoetz, M., Betschart, B., and Sager, H. (2013). Determination of Acaricide Resistance in Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) Field Populations of Argentina, South Africa, and Australia with the Larval Tarsal Test. Journal of Medical Entomology, 50(2) 326-335.
G16947 2013 Field Evolved Resistance
Brazil--
Sao Paulo--
Jacarei
Mendes, E., Mendes, M., and Sato, M. (2013). Diagnosis of amitraz resistance in Brazilian populations of Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) with larval immersion test. Experimental & Applied Acarology, 61 357-369.
G16948 2013 Field Evolved Resistance
Brazil--
Sao Paulo--
Lorena
Mendes, E., Mendes, M., and Sato, M. (2013). Diagnosis of amitraz resistance in Brazilian populations of Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) with larval immersion test. Experimental & Applied Acarology, 61 357-369.
G16949 2013 Field Evolved Resistance
Brazil--
Sao Paulo--
Lorena
Mendes, E., Mendes, M., and Sato, M. (2013). Diagnosis of amitraz resistance in Brazilian populations of Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) with larval immersion test. Experimental & Applied Acarology, 61 357-369.
G16944 2013 Field Evolved Resistance
Brazil--
Parana--
Ponta Grossa
Mendes, E., Mendes, M., and Sato, M. (2013). Diagnosis of amitraz resistance in Brazilian populations of Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) with larval immersion test. Experimental & Applied Acarology, 61 357-369.
G8666 2008 Field Evolved Resistance
Brazil Li, A. Y., Davey, R. B., Miller, R. J., Guerrero, F. D., and George, J. E. (2008). Genetics and Mechanism of Permethrin Resistance in the Santa Luiza Strain of Boophilus microplus (Acari: Ixodidae). Journal of Medical Entomology, 45 4277-438.
G8139 2008
Lab selected after field-evolved resistance**

Mexico--
Yucatan
Rosado-Aguilar, J.A., Rodriguez-Vivas, R.I>, Garcia-Vazquez, Z., Fragoso-Sanchez, H., Oritz-Najera, A., and Rosario-Cruz, R. (2008). Development of amitraz resistance in field populations of Boophilus microplus (Acari: Ixodidae) undergoing typical amitraz exposure in the Mexican tropics. Veterinary Parasitology, 152 349-353.
G8138 2008
Lab selected after field-evolved resistance**

Mexico--
Yucatan
Rosado-Aguilar, J.A., Rodriguez-Vivas, R.I>, Garcia-Vazquez, Z., Fragoso-Sanchez, H., Oritz-Najera, A., and Rosario-Cruz, R. (2008). Development of amitraz resistance in field populations of Boophilus microplus (Acari: Ixodidae) undergoing typical amitraz exposure in the Mexican tropics. Veterinary Parasitology, 152 349-353.
G8137 2008
Lab selected after field-evolved resistance**

Mexico--
Yucatan
Rosado-Aguilar, J.A., Rodriguez-Vivas, R.I>, Garcia-Vazquez, Z., Fragoso-Sanchez, H., Oritz-Najera, A., and Rosario-Cruz, R. (2008). Development of amitraz resistance in field populations of Boophilus microplus (Acari: Ixodidae) undergoing typical amitraz exposure in the Mexican tropics. Veterinary Parasitology, 152 349-353.
G8136 2008
Lab selected after field-evolved resistance**

Mexico--
Yucatan
Rosado-Aguilar, J.A., Rodriguez-Vivas, R.I>, Garcia-Vazquez, Z., Fragoso-Sanchez, H., Oritz-Najera, A., and Rosario-Cruz, R. (2008). Development of amitraz resistance in field populations of Boophilus microplus (Acari: Ixodidae) undergoing typical amitraz exposure in the Mexican tropics. Veterinary Parasitology, 152 349-353.
G8135 2008
Lab selected after field-evolved resistance**

Mexico--
Yucatan
Rosado-Aguilar, J.A., Rodriguez-Vivas, R.I>, Garcia-Vazquez, Z., Fragoso-Sanchez, H., Oritz-Najera, A., and Rosario-Cruz, R. (2008). Development of amitraz resistance in field populations of Boophilus microplus (Acari: Ixodidae) undergoing typical amitraz exposure in the Mexican tropics. Veterinary Parasitology, 152 349-353.
G8134 2008
Lab selected*

Mexico--
Tabasco--
Emiliano Zapata
Davey, Ronald B., Miller, Robert J., and George, John E. (2008). Efficacy of amitraz applied as a dip against an amitraz-resistant strain of Rhipicephalus (Boophilus) microplus ( Acari: Ixodidae) infested on cattle. Veterinary Parasitology, 152 127-135.
G7825 2007 Field Evolved Resistance
USA Li, Andrew Y., Chen, Andrew C., Miller, Robert J., Davey, Ronald B., and George,John E. (2007). Acaricide resistance and synergism between permethrin and amitraz against susceptible and resistant strains of Boophilus microplus (Acari: Ixodidae). Pest Management Science, 62 822-889.
G17056 2008
Lab selected after field-evolved resistance**

Mexico--
Tabasco--
Emiliano Zapata
Davey, R.B., Miller, R.J., and George, J.E. (2008). Efficacy of amitraz applied as a dip against an amitraz-resistant strain of Rhipicephalus (Boophilus) microplus (Acari: Ixodidae). Veterinary Parasitology, 152 127-135.
G16870 2013 Field Evolved Resistance
Mexico--
Tamaulipas--
Soto la Marina
Miller, R. J., Almazan, C., Ortiz-Estrada, M., Davey, R. B., George, J. E., and Perez De Leon, A. (2013). First report of fipronil resistance in Rhipicephalus (Boophilus) microplus of Mexico. Veterinary Parasitology, 191 97-101.
G15477 2007
Lab selected after field-evolved resistance**

New Caledonia Chevillon, C., Ducornez, S., Meeus, T., Koffi, B., Gaia, H., Delathiere, J., and Barre, N. (2007). Accumulation of acaricide resistance mechanisms in Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) populations from New Caledonia Island. Veterinary Parasitology , 147 276-288.
G17002 2005 Field Evolved Resistance
Brazil--
Minas Gerais--
Santa Luzia
Li, A. Y., Davey, R. B., Miller, R. J., and George, J. E. (2005). Mode of inheritance of amitraz resistance in a Brazilian strain of the southern cattle tick, Boophilus microplus (Acari: Ixodidae). Experimental and Applied Acarology, 37 183-198.
G9943 2005
Lab selected after field-evolved resistance**

Brazil--
Santa Luiza
Li, A. Y., Davey, R. B., Miller, R. J., and George, J. E. (2005). Mode of inheritance of amitraz resistance in a Brazilian strain of the southern cattle tick, Boophilus microplus (Acari: Ixodidae). Experimental and Applied Acarology, 37 183-198.
G7086 2005 Unspecified
New Caledonia--
Gadji
Ducornez, S., Barre, N., Miller, R.J., Garine-Wichatitsky, M. de. (2005). Diagnosis of amitraz resistance in Boophilus microplus in New Caledonia with the modified Larval Packet Test.. Veterinary Parasitology, 130 285-292.
G10565 2004
Lab selected after field-evolved resistance**

Brazil--
Santa Luzia
Li, A. Y., Davey, R. B., Miller, R. J., and George, J. E. (2004). Detection and Characterization of Amitraz Resistance in the Southern Cattle Tick, Boophilus microplus (Acari: Ixodidae). Journal of Medical Entomology, 41(2) 193-200.
G16995 2006
Lab selected after field-evolved resistance**

Mexico--
Tabasco
Davey, R. B., George, J. E., and Miller, R. J. (2006). Comparison of the reproductive biology between acaricide-resistant and acaricide-susceptible Rhipicephalus (Boophilus) microplus (Acari: Ixodidae). Veterinary Parasitology, 139 211-220.
G17004 2007 Field Evolved Resistance
Mexico--
Tabasco--
San Alfonso
Miller, R. J., Davey, R. B., White, W. H., and George, J. E. (2007). A Comparison of Three Bioassay Techniques to Determine Amitraz Susceptibility in Boophilus microplus (Acari: Ixodidae). Journal of Medical Entomology, 44(2) 283-294.
G17005 2007 Field Evolved Resistance
Brazil--
Rio Grande do Sul--
Alegrete
Miller, R. J., Davey, R. B., White, W. H., and George, J. E. (2007). A Comparison of Three Bioassay Techniques to Determine Amitraz Susceptibility in Boophilus microplus (Acari: Ixodidae). Journal of Medical Entomology, 44(2) 283-294.
G17006 2007 Field Evolved Resistance
Mexico--
Tabasco--
San Alfonso
Miller, R. J., Davey, R. B., White, W. H., and George, J. E. (2007). A Comparison of Three Bioassay Techniques to Determine Amitraz Susceptibility in Boophilus microplus (Acari: Ixodidae). Journal of Medical Entomology, 44(2) 283-294.
G17007 2007 Field Evolved Resistance
Brazil--
Rio Grande do Sul--
Alegrete
Miller, R. J., Davey, R. B., White, W. H., and George, J. E. (2007). A Comparison of Three Bioassay Techniques to Determine Amitraz Susceptibility in Boophilus microplus (Acari: Ixodidae). Journal of Medical Entomology, 44(2) 283-294.
G17026 2004 Field Evolved Resistance
Brazil--
Santa Luiza
Li, A. Y., Davey, R. B., Miller, R. J., and George, J. E. (2004). Detection and Characterization of Amitraz Resistance in the Southern Cattle Tick, Boophilus microplus (Acari: Ixodidae). Journal of Medical Entomology, 41(2) 193-200.
G10242 2002 Field Evolved Resistance
Brazil--
Santa Luiza
Miller, R.J., Davey, R.B., George, J.E. (2002). Modification to the Food and Agriculture Organization Larval Packet Test to Measure Amitraz-Susceptibility Against Ixodidae. Journal of Medical Entomology, 39 645-651.
G17043 2002 Field Evolved Resistance
Mexico--
Tabasco--
Emiliano Zapata
Cespedes, N.S., Vargas, M.S., Sanchez, H.F., and Vazquez, Z.G. (2002). First Case reported of Amitraz resistance in the cattle tick Boophilus microplus in Mexico. Tecnica Pecuaria en Mexico, 40(1) 81-92.
G17048 2002 Field Evolved Resistance
Mexico--
Tabasco--
Emiliano Zapata
Cespedes, N.S., Vargas, M.S., Sanchez, H.F., and Vazquez, Z.G. (2002). First Case reported of Amitraz resistance in the cattle tick Boophilus microplus in Mexico. Tecnica Pecuaria en Mexico, 40(1) 81-92.
G17027 2004
Lab selected after field-evolved resistance**

Brazil--
Santa Luzia
Li, A. Y., Davey, R. B., Miller, R. J., and George, J. E. (2004). Detection and Characterization of Amitraz Resistance in the Southern Cattle Tick, Boophilus microplus (Acari: Ixodidae). Journal of Medical Entomology, 41(2) 193-200.
G15948 2010 Field Evolved Resistance
Brazil--
Minas Gerais--
Santa Luiza
Li, A. Y., Davey, R. B., and Miller, R. J. (2010). Laboratory Evaluation of Verbutin as a Synergist of Acaricides Against Larvae of Rhipicephalus (Boophilus) microplus (Acari: Ixodidae). Journal of Economic Entomology, 103(4) 1360-1364.
G7826 2007 Field Evolved Resistance
Brazil Li, Andrew Y., Chen, Andrew C., Miller, Robert J., Davey, Ronald B., and George,John E. (2007). Acaricide resistance and synergism between permethrin and amitraz against susceptible and resistant strains of Boophilus microplus (Acari: Ixodidae). Pest Management Science, 62 822-889.
G15947 2010 Field Evolved Resistance
Mexico--
Nuevo Leon--
Pesqueria
Li, A. Y., Davey, R. B., and Miller, R. J. (2010). Laboratory Evaluation of Verbutin as a Synergist of Acaricides Against Larvae of Rhipicephalus (Boophilus) microplus (Acari: Ixodidae). Journal of Economic Entomology, 103(4) 1360-1364.
G17034 2000 Field Evolved Resistance
Colombia--
Santander--
Socorro
Benavides, E., Rodriguez, J. L., and Romero, A. (2000). Isolation and Partial Characterization of the Montecitos Strain of Boophilus microplus (Canestrini, 1877) Multiresistant to Different Acaricides. Annals of the New York Academy of Sciences, 916 668-671.
G17035 2000 Field Evolved Resistance
Colombia--
Santander--
Socorro
Benavides, E., Rodriguez, J. L., and Romero, A. (2000). Isolation and Partial Characterization of the Montecitos Strain of Boophilus microplus (Canestrini, 1877) Multiresistant to Different Acaricides. Annals of the New York Academy of Sciences, 916 668-671.
G4018 1981 Field Evolved Resistance
Australia--
Queensland
Nolan, J. (1981). Current developments in resistance to amidine and pyrethroid tickicides in Australia.. In: Whitehead, G. B. and Gibson, J. D. Tick Biology and Control. Tick Res. Unit, Rhodes Univ., Grahamstown, So. Africa, pp. 109-14.
*The population was created solely by selection and/or genetic manipulation.
**The population was selected further in the laboratory after collection.