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: methomyl

MOA:	Acetylcholine esterase inhibitors, Carbamates
Group:	CAR CAS #: 16752775 Shaugnessy Code: 90301

Resistance Case(s)

Case Id	Year of Report	Location	Reference
	2008	Belgium -- MR-VL	Khajehali, J., Van Leeuwen, T., Grispou, M., Morou, E., Alout, H., Weill, M., Tirry, L., Vontas, J., Tsagkarakou, A. (2010). Acetylcholinesterase point mutations in European strains of Tetranychus urticae (Acari: Tetranychidae) resistant to organophosphates. Pest Management Science, 66, 220-228.
	2008	Greece -- Athens -- ATHRos-Pm	Khajehali, J., Van Leeuwen, T., Grispou, M., Morou, E., Alout, H., Weill, M., Tirry, L., Vontas, J., Tsagkarakou, A. (2010). Acetylcholinesterase point mutations in European strains of Tetranychus urticae (Acari: Tetranychidae) resistant to organophosphates. Pest Management Science, 66, 220-228.
	1996	Greece	Tsagkarakou, A., M. Navajas, J. Lagnel, J. Gutierrez, and N. Pasteur. (1996). Genetic variability in teranychus urticae (Acari: Tetranychidae) from Greece : Insecticide resistance and Isozymes. Journal of Economic Entomology, 89(6), 1354-1358.
	1974	United Kingdom	Cranham, J. E. 1974b. Communication to FAO.