Skip to main content


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: pyriprol

MOA: GABA-gated chloride channel antagonists, Phenylpyrazoles (Fiproles)
Group: PYZ CAS #: 394730-71-3 Shaugnessy Code: 0

Resistance Case(s)

Case Id Year of Report Type of Resistance Location Reference
G16965 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.
G16967 2013 Field Evolved Resistance
Brazil--
Parana
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.
G16968 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.
G16969 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.
*The population was created solely by selection and/or genetic manipulation.
**The population was selected further in the laboratory after collection.