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: spiromesifen

MOA: Inhibitors of lipid synthesis, Tetronic acid derivitives
Group: TETR	CAS #: 0	Shaugnessy Code: 0

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G19407	2016	Field Evolved Resistance	Brazil-- Sao Paulo-- Artur Nogueira	Sato, M., Veronez, B., Stocco, R., Queiroz, M., and Gallego, R. (2016). Spiromesifen resistance in Tetranychus urticae (Acari: Tetranychidae): Selection, stability, and monitoring. Crop Protection, 89 278-283.
G19406	2016	Field Evolved Resistance	Brazil-- Sao Paulo-- Artur Nogueira	Sato, M., Veronez, B., Stocco, R., Queiroz, M., and Gallego, R. (2016). Spiromesifen resistance in Tetranychus urticae (Acari: Tetranychidae): Selection, stability, and monitoring. Crop Protection, 89 278-283.
G19408	2016	Field Evolved Resistance	Brazil-- Sao Paulo-- Holambra	Sato, M., Veronez, B., Stocco, R., Queiroz, M., and Gallego, R. (2016). Spiromesifen resistance in Tetranychus urticae (Acari: Tetranychidae): Selection, stability, and monitoring. Crop Protection, 89 278-283.
G15600	2013	Lab selected after field-evolved resistance**	Belgium-- East Flanders-- Ghent	Demaeght, P., Dermauw, W., Tsakireli, D., Khajehali, J., Nauen, R., Tirry, L., Vontas, J., Lummen, P., and Van Leeuwen, T. (2013). Molecular analysis of resistance to acaricidal spirocyclic tetronic acids in Tetranychus urticae: CYP392E10 metabolizes spirodiclofen, but not its corresponding enol. Insect Biochemistry and Molecular Biology, 43 544-554.
G15603	2013	Lab selected after field-evolved resistance**	Belgium-- East Flanders-- Ghent	Demaeght, P., Dermauw, W., Tsakireli, D., Khajehali, J., Nauen, R., Tirry, L., Vontas, J., Lummen, P., and Van Leeuwen, T. (2013). Molecular analysis of resistance to acaricidal spirocyclic tetronic acids in Tetranychus urticae: CYP392E10 metabolizes spirodiclofen, but not its corresponding enol. Insect Biochemistry and Molecular Biology, 43 544-554.
G8951	2009	Lab selected after field-evolved resistance**	Belgium-- Ghent	Van Pottelberge, S., Van Leeuwen, T., Khajehali, J., and Tirry, L. (2009). Genetic and biochemical analysis of a laboratory-selected spirodiclofen-resistant strain of Tetranychus urticae Koch (Acari: Tetranychidae). Pest Management Science, 65 358-366.

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