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: mevinphos

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 26718650	Shaugnessy Code: 15801

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G2336	1974	Field Evolved Resistance	France	Lambert 1974. (1974).
G1622	1970	Field Evolved Resistance	Finland	Markkula, M. and Tittanen, K. (1970). Two-spotted spider mite Tetranychus telarius L.. resistant to aldicarb. Ann. Entomol. Fenn., 36 191-92.
G1521	1969	Field Evolved Resistance	Brazil	Mello, E. J. R. (1969). Estudo da resistencia do acaro do algodeiro Tetanychus urtiecae aos defensivos emperedgados no seu control.. Biologico (Brazil), 35 125-27.
G1364	1968	Field Evolved Resistance	New Zealand	Harrison 1968. (1968).

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