Reported Resistance Case(s)

Species: helicoverpa zea

Order	Family	Common Name(s)	Group	Host
lepidoptera	noctuidae	corn earworm	AG

Active Ingredient: permethrin

MOA: Sodium channel modulators, Pyrethroids, Pyrethrins, DDT
Group: PYR	CAS #: 52645-53-1	Shaugnessy Code: 109701

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G5491	1993	Unspecified	USA	Abd-elghafar, S.F., C.O. Knowles, and M.L. Wall. (1993). Pyrethroid Resistance in Two Field Strains of Helicoverpa zea (Lepidoptera: Noctuidae). Journal of Economic Entomology, 86(6) 1651-1655.
G5319	1991	Unspecified	USA	Hsu, E.L., and S.J. Yu. (1991). Insecticide Resistance in the Corn Earworm, Heliothis Zea (Boddie). Resistant Pest Management Newsletter, 3/18 3/18.

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