Reported Resistance Case(s)

Species: tetranychus urticae

Order	Family	Common Name(s)	Group	Host
acari	tetranychidae	twospotted spider mite	AG	cotton, fruits, vegetables, walnut, ornamentals

Active Ingredient: azinphos-methyl

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 86500	Shaugnessy Code: 58001

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G4283	1985	Field Evolved Resistance	Finland	Markkula, M. and Kurppa, S. (1985). Resistance of insects and mites to pesticides in Finland.. Ann. Agric. Fenn., 24 161-174.
G2307	1974	Field Evolved Resistance	USA-- North Carolina	Rock, G.C. (1974). Communication to FAO.
G1350	1968	Field Evolved Resistance	Chile	Caballero 1968. (1968).
G1351	1968	Field Evolved Resistance	South Africa	Myburgh, G. (1968). In: FAO 1969.
G668	1965	Field Evolved Resistance	Israel	Cwilich & Ascher 1965. (1965).
G669	1965	Field Evolved Resistance	Australia-- New South Wales	Hely, P.C. (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.