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: omethoate

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 1113026	Shaugnessy Code: 35002

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G3515	1979	Field Evolved Resistance	United Kingdom	Muir, R. C. and Cranham, J. E. (1979). Resistance to pesticides in damson-hop aphid and red spider mite on English hops.. Proc. Br. Crop Prot. Conf. Pests Dis., 1 161-67.
G2339	1974	Field Evolved Resistance	France	Lambert 1974. (1974).
G2340	1974	Field Evolved Resistance	Poland	Lakocy, A. (1974). Communication to FAO.

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