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: dienochlor

MOA: GABA-gated chloride channel antagonists, Cyclodiene organochlorines
Group: CYCLO	CAS #: 2227-17-0	Shaugnessy Code: 27501

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G1513	1969	Field Evolved Resistance	USA-- Massachusetts	McEnroe, W. D. and Lakocy, A. (1969). The development of Pentac resistance in an outcrossing swarm of the two-spotted spider mite.. J. Econ. Entomol., 62 283-86.

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