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: formothion

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 2540-82-1	Shaugnessy Code: 366400

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G2331	1974	Field Evolved Resistance	USSR-- Tajik	Smirnova 1974. (1974).

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