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: tetranychus althaeae

Order Family Common Name(s) Group Host
acari tetranychidae spider mite AG chrysanthemum

Active Ingredient: Organophosphates - Unspecified In Literature

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP CAS #: 0 Shaugnessy Code: 0

Resistance Case(s)

Case Id Year of Report Type of Resistance Location Reference
G639 1965 Field Evolved Resistance
Denmark Peterson, H.I. (1965). In: FAO 1967.
*The population was created solely by selection and/or genetic manipulation.
**The population was selected further in the laboratory after collection.