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: culex quinquefasciatus

Order Family Common Name(s) Group Host
diptera culicidae southern house mosquito MED

Active Ingredient: chlorfenvinphos

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP CAS #: 470906 Shaugnessy Code: 84101

Resistance Case(s)

Case Id Year of Report Type of Resistance Location Reference
G4612 1986 Field Evolved Resistance
Tanzania WHO 1986. (1986).
*The population was created solely by selection and/or genetic manipulation.
**The population was selected further in the laboratory after collection.