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: phorate

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 298022	Shaugnessy Code: 57201

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G1526	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.

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