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: amitraz

MOA: Octopaminergic agonist, Amitraz
Group: FORM	CAS #: 33089611	Shaugnessy Code: 106201

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G7282	2005	Unspecified	Belgium	Van Leeuwen, T., Pottelberge, S.V., Tirry, L. (2005). Comparative acaricide susceptibility and detoxifying enzyme activties in field-collected resistant and susceptible strains of Tetranychus urticae.. Pest Management Science, 61 499-507.
G5294	1991	Unspecified	USA-- New York	Fergusson-Kolmes, L.A., J.G. Scott, and T.J. Dennehey. (1991). Dicofol Resistance in Tetranychus urticae (Acari:Tetranychidae) : Cross-resistance and Pharmacokinetics. Journal of Economic Entomology, 84(1) 41-48.

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