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: parathion-methyl

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 298000	Shaugnessy Code: 53501

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G5765	1996	Unspecified	Greece	Tsagkarakou, A., M. Navajas, J. Lagnel, J. Gutierrez, and N. Pasteur. (1996). Genetic variability in teranychus urticae (Acari: Tetranychidae) from Greece : Insecticide resistance and Isozymes. Journal of Economic Entomology, 89(6) 1354-1358.
G4285	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.
G1362	1968	Field Evolved Resistance	Brazil	Mello 1968. (1968).
G1363	1968	Field Evolved Resistance	Chile	Caballero 1968. (1968).

*The population was created solely by selection and/or genetic manipulation.
**The population was selected further in the laboratory after collection.