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: fenpyroximate

MOA: Mitochondrial complex I electron transport inhibitors, METI acaricides, Rotenone
Group: PYZ	CAS #: 0	Shaugnessy Code: 0

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G20612	2018	Lab selected after field-evolved resistance**	USA-- Washington -- Prosser	Adesanya, A. W., Morales, M A., Walsh, D. B., Lavine, L. C., Lavine, M. D., and Zhu, F. (2018). Mechanisms of resistance to three mitegrowth inhibitors ofTetranychus urticaein hops. Bulletin of Entomological Research, 108 1-12.
G20611	2018	Lab selected after field-evolved resistance**	USA-- Washington -- Prosser	Adesanya, A. W., Morales, M A., Walsh, D. B., Lavine, L. C., Lavine, M. D., and Zhu, F. (2018). Mechanisms of resistance to three mitegrowth inhibitors ofTetranychus urticaein hops. Bulletin of Entomological Research, 108 1-12.
G18637	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.
G18636	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.
G20178	2017	Field Evolved Resistance	Brazil-- Pernambuco-- Petrolina	Assis, Carla & Guedes Correa Gondim Jr, Manoel & Siqueira, Herbert. (2017). Synergism to acaricides in resistant Neoseiulus californicus (Acari: Phytoseiidae), a predator of Tetranychus urticae (Acari: Tetranychidae).. Crop Protection, 106 139-145.
G14617	2011	Lab selected after field-evolved resistance**	Turkey-- Antalya	Ay, R., and Kara, F.E. (2011). Toxicity, inheritance of fenpyroximate resistance, and detoxification-enzyme levels in a laboratory-selected fenpyroximate-resistant strain of Tetranychus urticae Koch (Acari: Tetranychidae). Crop Protection, 30 605-610.
G10167	2008	Field Evolved Resistance	Belgium-- Brussels	Van Pottelberge, S., Van Leeuwen, T., Nauen, R., Tirry, L. (2008). Resistance mechanisms to mitochondrial electron transport inhibitors in a field-collected strain of Tetranychus urticae Koch (Acari: Tetranychidae). Bulletin of Entomological Research, 99 22-31.
G10170	2008	Field Evolved Resistance	Belgium-- Brussels	Van Pottelberge, S., Van Leeuwen, T., Nauen, R., Tirry, L. (2008). Resistance mechanisms to mitochondrial electron transport inhibitors in a field-collected strain of Tetranychus urticae Koch (Acari: Tetranychidae). Bulletin of Entomological Research, 99 22-31.
G7185	2006	Unspecified	Korea-- Gangwon-- Wonju	Suh, E., Koh, S.H., Lee, J.H., Shin, K.I., Cho, K. (2006). Evaluation of resistance pattern to fenpyroximate and pyridaben in Tetranychus urticae collected from greenhouses and apple orchards using lethal cencentration-slope relationship. Experimental and Applied Acarology, 38 151-165.
G7190	2006	Unspecified	Korea-- Gyeongbuk-- Yeongju	Suh, E., Koh, S.H., Lee, J.H., Shin, K.I., Cho, K. (2006). Evaluation of resistance pattern to fenpyroximate and pyridaben in Tetranychus urticae collected from greenhouses and apple orchards using lethal cencentration-slope relationship. Experimental and Applied Acarology, 38 151-165.
G7189	2006	Unspecified	Korea-- Jeonbuk-- Gochang	Suh, E., Koh, S.H., Lee, J.H., Shin, K.I., Cho, K. (2006). Evaluation of resistance pattern to fenpyroximate and pyridaben in Tetranychus urticae collected from greenhouses and apple orchards using lethal cencentration-slope relationship. Experimental and Applied Acarology, 38 151-165.
G7188	2006	Unspecified	Korea-- Chungbuk-- Chungju	Suh, E., Koh, S.H., Lee, J.H., Shin, K.I., Cho, K. (2006). Evaluation of resistance pattern to fenpyroximate and pyridaben in Tetranychus urticae collected from greenhouses and apple orchards using lethal cencentration-slope relationship. Experimental and Applied Acarology, 38 151-165.
G7187	2006	Unspecified	Korea-- Gyeongbuk-- Uiseong	Suh, E., Koh, S.H., Lee, J.H., Shin, K.I., Cho, K. (2006). Evaluation of resistance pattern to fenpyroximate and pyridaben in Tetranychus urticae collected from greenhouses and apple orchards using lethal cencentration-slope relationship. Experimental and Applied Acarology, 38 151-165.
G7186	2006	Unspecified	Korea-- Gyeongbuk-- Yeongcheon	Suh, E., Koh, S.H., Lee, J.H., Shin, K.I., Cho, K. (2006). Evaluation of resistance pattern to fenpyroximate and pyridaben in Tetranychus urticae collected from greenhouses and apple orchards using lethal cencentration-slope relationship. Experimental and Applied Acarology, 38 151-165.
G7184	2006	Unspecified	Korea-- Gangwon-- Gangneung	Suh, E., Koh, S.H., Lee, J.H., Shin, K.I., Cho, K. (2006). Evaluation of resistance pattern to fenpyroximate and pyridaben in Tetranychus urticae collected from greenhouses and apple orchards using lethal cencentration-slope relationship. Experimental and Applied Acarology, 38 151-165.
G7183	2006	Unspecified	Korea-- Gyeongnam-- Masan	Suh, E., Koh, S.H., Lee, J.H., Shin, K.I., Cho, K. (2006). Evaluation of resistance pattern to fenpyroximate and pyridaben in Tetranychus urticae collected from greenhouses and apple orchards using lethal cencentration-slope relationship. Experimental and Applied Acarology, 38 151-165.
G7182	2006	Unspecified	Korea-- Gyeongnam-- Haman	Suh, E., Koh, S.H., Lee, J.H., Shin, K.I., Cho, K. (2006). Evaluation of resistance pattern to fenpyroximate and pyridaben in Tetranychus urticae collected from greenhouses and apple orchards using lethal cencentration-slope relationship. Experimental and Applied Acarology, 38 151-165.
G7181	2006	Unspecified	Korea-- Jeonnam-- Gwangju	Suh, E., Koh, S.H., Lee, J.H., Shin, K.I., Cho, K. (2006). Evaluation of resistance pattern to fenpyroximate and pyridaben in Tetranychus urticae collected from greenhouses and apple orchards using lethal cencentration-slope relationship. Experimental and Applied Acarology, 38 151-165.
G7180	2006	Unspecified	Korea-- Gyeongnam-- Geochang	Suh, E., Koh, S.H., Lee, J.H., Shin, K.I., Cho, K. (2006). Evaluation of resistance pattern to fenpyroximate and pyridaben in Tetranychus urticae collected from greenhouses and apple orchards using lethal cencentration-slope relationship. Experimental and Applied Acarology, 38 151-165.
G7179	2006	Unspecified	Korea-- Chungnam-- Buyeo	Suh, E., Koh, S.H., Lee, J.H., Shin, K.I., Cho, K. (2006). Evaluation of resistance pattern to fenpyroximate and pyridaben in Tetranychus urticae collected from greenhouses and apple orchards using lethal cencentration-slope relationship. Experimental and Applied Acarology, 38 151-165.
G7178	2006	Unspecified	Korea-- Chungnam-- Daejeon	Suh, E., Koh, S.H., Lee, J.H., Shin, K.I., Cho, K. (2006). Evaluation of resistance pattern to fenpyroximate and pyridaben in Tetranychus urticae collected from greenhouses and apple orchards using lethal cencentration-slope relationship. Experimental and Applied Acarology, 38 151-165.
G7177	2006	Unspecified	Korea-- Chungbuk-- Jincheon	Suh, E., Koh, S.H., Lee, J.H., Shin, K.I., Cho, K. (2006). Evaluation of resistance pattern to fenpyroximate and pyridaben in Tetranychus urticae collected from greenhouses and apple orchards using lethal cencentration-slope relationship. Experimental and Applied Acarology, 38 151-165.
G7176	2006	Unspecified	Korea-- Chungbuk-- Cheongju	Suh, E., Koh, S.H., Lee, J.H., Shin, K.I., Cho, K. (2006). Evaluation of resistance pattern to fenpyroximate and pyridaben in Tetranychus urticae collected from greenhouses and apple orchards using lethal cencentration-slope relationship. Experimental and Applied Acarology, 38 151-165.
G7175	2006	Unspecified	Korea-- Gyeongbuk-- Bonghwa	Suh, E., Koh, S.H., Lee, J.H., Shin, K.I., Cho, K. (2006). Evaluation of resistance pattern to fenpyroximate and pyridaben in Tetranychus urticae collected from greenhouses and apple orchards using lethal cencentration-slope relationship. Experimental and Applied Acarology, 38 151-165.
G7174	2006	Unspecified	Korea-- Gyeongbuk-- Gumi	Suh, E., Koh, S.H., Lee, J.H., Shin, K.I., Cho, K. (2006). Evaluation of resistance pattern to fenpyroximate and pyridaben in Tetranychus urticae collected from greenhouses and apple orchards using lethal cencentration-slope relationship. Experimental and Applied Acarology, 38 151-165.
G7173	2006	Unspecified	Korea-- Gyeongbuk-- Chilgok	Suh, E., Koh, S.H., Lee, J.H., Shin, K.I., Cho, K. (2006). Evaluation of resistance pattern to fenpyroximate and pyridaben in Tetranychus urticae collected from greenhouses and apple orchards using lethal cencentration-slope relationship. Experimental and Applied Acarology, 38 151-165.
G7172	2006	Unspecified	Korea-- Gyeonggi-- Incheon	Suh, E., Koh, S.H., Lee, J.H., Shin, K.I., Cho, K. (2006). Evaluation of resistance pattern to fenpyroximate and pyridaben in Tetranychus urticae collected from greenhouses and apple orchards using lethal cencentration-slope relationship. Experimental and Applied Acarology, 38 151-165.
G6603	2001	Unspecified	Japan	Nauen, R., N. Stumpf, A. Elbert, C.P.W. Zebitz, and W. Kraus. (2001). Acaricide toxicity and resistance in larvae of different strains of Tetranychus urticae and Panonychus ulmi (Acari: Tetranychidae). Pest Manag Sci, 57 253-261.
G10190	2004	Lab selected after field-evolved resistance**	Brazil-- Sao Paulo-- Atibaia	Sato, M.E., Miyata,T., Silva, M., Raga, A., Souza Filho, M.F. (2004). Slections for fenpyroximate resistance and susceptibility, and inheritance, cross-resistance and stability of fenpyroximate resistance in Tetranychus urticae Koch (Acari:Tetranychidae). Applied Entomology and Zoology, 39 293-302.
G6246	2001	Unspecified	United Kingdom-- Worcester	Devine, G.J., M. Barber, and I. Denholm. (2001). Incidence and inheritence of resistance to METI-acaricides in European strains of the two spotted spider mite (Tetranychus uticae). Pest Manag Sci, 57 443-448.

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