Reported Resistance Case(s)

Species: haematobia irritans

Order	Family	Common Name(s)	Group	Host
diptera	muscidae	horn fly	MED	livestock

Active Ingredient: cyhalothrin

MOA: Sodium channel modulators, Pyrethroids, Pyrethrins, DDT
Group: PYR	CAS #: 91465086	Shaugnessy Code: 128897

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G10829	1999	Field Evolved Resistance	USA-- Louisiana-- St. Joseph	A.T.M. Barros, M.W. Alison Jr., L.D. Foil. (1999). Evaluation of a yearly insecticidal ear tag rotation for control of pyrethroid-resistant horn flies (Diptera: Muscidae). Veterinary Parasitology , 82 317-325.
G10830	1999	Field Evolved Resistance	USA-- Louisiana-- St. Joseph	A.T.M. Barros, M.W. Alison Jr., L.D. Foil. (1999). Evaluation of a yearly insecticidal ear tag rotation for control of pyrethroid-resistant horn flies (Diptera: Muscidae). Veterinary Parasitology , 82 317-325.
G5297	1991	Unspecified	USA-- Louisiana	Crosby, B.L., R.L. Byford, and T.C. Sparks. (1991). Bioassay for detecting Active Site Insensitivity in Horn Fly (Diptera: Muscidae) Larvae. Journal of Economic Entomology, 84(2) 367-370.
G5339	1991	Unspecified	USA-- Kentucky	Cilek, J.E., C.D. Steelman, and F.W. Knapp. (1991). Horn Fly (Diptera: Muscidae) Insecticide Resistance in Kentucky and Arkansas. Journal of Economic Entomology, 84(3) 756-762.
G5342	1991	Unspecified	USA-- Arkansas	Cilek, J.E., C.D. Steelman, and F.W. Knapp. (1991). Horn Fly (Diptera: Muscidae) Insecticide Resistance in Kentucky and Arkansas. Journal of Economic Entomology, 84(3) 756-762.

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