Reported Resistance Case(s)

Species: haematobia irritans

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

Active Ingredient: methoxychlor

MOA: Sodium channel modulators, Pyrethroids, Pyrethrins, DDT
Group: DDT	CAS #: 72435	Shaugnessy Code: 34001

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G5340	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.
G779	1965	Field Evolved Resistance	USA-- Louisiana	Burns, E.C., and Wilson, B. H. (1965). In: FAO 1967.

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