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: frankliniella occidentalis

Order Family Common Name(s) Group Host
thysanoptera thripidae western flower thrips AG cotton

Active Ingredient: methiocarb + PBO

MOA: Acetylcholine esterase inhibitors, Carbamates
Group: CAR CAS #: 2032657 Shaugnessy Code: 100501

Resistance Case(s)

Case Id Year of Report Type of Resistance Location Reference
G15549 1998 Field Evolved Resistance
Denmark Jensen, S. E. (1998). Acetylcholinesterase activity associated with methiocarb resistance in a strain of western flower thrips, Frankliniella occidentalis (Pergande). Pesticide Biochemistry and Physiology, 61 191-200.
*The population was created solely by selection and/or genetic manipulation.
**The population was selected further in the laboratory after collection.