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: trichlorfon

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 52686	Shaugnessy Code: 57901

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G270	1961	Field Evolved Resistance	Israel	Cwilich, R. and Ascher, K. R. S. (1961). Organophosphorus resistance of spider mites on sugar beets.. Israel J. Agric. Res., 11 135-36.

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