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: spirodiclofen

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
G18640	2015	Field Evolved Resistance	Brazil-- Pernambuco-- Bonito	Ferreira, C., Andrade, F., Rodrigues, A., Siqueira, H., and Gondim Jr., M. (2015). Resistance in field populations of Tetranychus urticae to acaricides and characterization of the inheritance of abamectin resistance. Crop Protection, 67 77-83.
G18641	2015	Field Evolved Resistance	Brazil-- Pernambuco-- Brejao	Ferreira, C., Andrade, F., Rodrigues, A., Siqueira, H., and Gondim Jr., M. (2015). Resistance in field populations of Tetranychus urticae to acaricides and characterization of the inheritance of abamectin resistance. Crop Protection, 67 77-83.
G16710	2014	Lab selected after field-evolved resistance**	Iran-- Alborz-- Karaj	Seyed-Talebi, F., Kheradmand, K., Talaei-Hassanloui, R., and Talebi-Jahromi. (2014). Synergistic effect of Beauveria bassiana and spirodiclofen on the two-spotted spider mite (Tetranychus urticae). Phytoparasitica, 42 405-412.
G16711	2014	Lab selected after field-evolved resistance**	Iran-- Alborz-- Karaji	Seyed-Talebi, F., Kheradmand, K., Talaei-Hassanloui, R., and Talebi-Jahromi. (2014). Synergistic effect of Beauveria bassiana and spirodiclofen on the two-spotted spider mite (Tetranychus urticae). Phytoparasitica, 42 405-412.
G15596	2013	Lab selected after field-evolved resistance**	Belgium-- 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.
G15598	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.
G8949	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.
G8950	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.
G8952	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.
G8953	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.