Reported Resistance Case(s)

Species: ctenocephalides felis

Order	Family	Common Name(s)	Group	Host
siphonaptera	pulicidae	cat flea	MED	cat, human

Active Ingredient: cypermethrin

MOA: Sodium channel modulators, Pyrethroids, Pyrethrins, DDT
Group: PYR	CAS #: 52315078	Shaugnessy Code: 109702

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G5074	1989	Field Evolved Resistance	USA	Lemke, L.A., P.G. Koehler, and R. S. Patterson. (1989). Susceptibility of the Cat Flea (Siphonaptera: Pulicidae) to Pyrethroids. Journal of Economic Entomology, 82(3) 839-841.

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