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: acequinocyl

MOA: Mitochondrial complex III electron transport inhibitors, Acequinocyl, Fluacrypyrim
Group: NAPH	CAS #: 57960-19-7	Shaugnessy Code: 6329

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G23592	2025	Field Evolved Resistance	Turkey-- Antalya	Demirci B, Söylemezoğlu G, Van Leeuwen T, Toprak U, İnak E. (2025). Monitoring and molecular mechanisms of resistance to complex III inhibitors in Tetranychus urticae populations from Türkiye. Pestic Biochem Physiol.
G23593	2025	Field Evolved Resistance	Turkey-- Antalya	Demirci B, Söylemezoğlu G, Van Leeuwen T, Toprak U, İnak E. (2025). Monitoring and molecular mechanisms of resistance to complex III inhibitors in Tetranychus urticae populations from Türkiye. Pestic Biochem Physiol.
G23594	2025	Field Evolved Resistance	Turkey-- Ankara	Demirci B, Söylemezoğlu G, Van Leeuwen T, Toprak U, İnak E. (2025). Monitoring and molecular mechanisms of resistance to complex III inhibitors in Tetranychus urticae populations from Türkiye. Pestic Biochem Physiol.
G7521	2006	Lab selected*	Belgium-- East Flanders-- Ghent	Van Leeuwen, Thomas, Tirry, Luc, and Nauen, Ralf. (2006). Complete maternal inheritance of bifenazate resistance in Tetranychus urticae Loch ( Acari: Tetranychidae) and its implications in mode of action considerations. Insect Biochemistry and Molecular Biology, 36 869-877.
G23595	2025	Field Evolved Resistance	Turkey-- Izmir	Demirci B, Söylemezoğlu G, Van Leeuwen T, Toprak U, İnak E. (2025). Monitoring and molecular mechanisms of resistance to complex III inhibitors in Tetranychus urticae populations from Türkiye. Pestic Biochem Physiol.

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