Reported Resistance Case(s)

Species: helicoverpa zea

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

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
G10555	2010	Lab selected after field-evolved resistance**	USA-- Texas-- Uvalde	Hopkins, B.W., Longnecker, M.T., Pietrantonio, P.V. (2010). Transcriptional overexpression of CYP6B8/CYP6B28 and CYP6B9 is a mechanism associated with cypermethrin survivorship in field-collected Helicoverpa zea (Lepidoptera:Noctuidae) moths. Pest Management Science.
G10556	2010	Lab selected after field-evolved resistance**	USA-- Texas-- Uvalde	Hopkins, B.W., Longnecker, M.T., Pietrantonio, P.V. (2010). Transcriptional overexpression of CYP6B8/CYP6B28 and CYP6B9 is a mechanism associated with cypermethrin survivorship in field-collected Helicoverpa zea (Lepidoptera:Noctuidae) moths. Pest Management Science.
G10552	2010	Lab selected after field-evolved resistance**	USA-- Texas-- Nueces	Hopkins, B.W., Longnecker, M.T., Pietrantonio, P.V. (2010). Transcriptional overexpression of CYP6B8/CYP6B28 and CYP6B9 is a mechanism associated with cypermethrin survivorship in field-collected Helicoverpa zea (Lepidoptera:Noctuidae) moths. Pest Management Science.
G10553	2010	Lab selected after field-evolved resistance**	USA-- Texas-- Burleson	Hopkins, B.W., Longnecker, M.T., Pietrantonio, P.V. (2010). Transcriptional overexpression of CYP6B8/CYP6B28 and CYP6B9 is a mechanism associated with cypermethrin survivorship in field-collected Helicoverpa zea (Lepidoptera:Noctuidae) moths. Pest Management Science.
G10554	2010	Lab selected after field-evolved resistance**	USA-- Texas-- Williamson	Hopkins, B.W., Longnecker, M.T., Pietrantonio, P.V. (2010). Transcriptional overexpression of CYP6B8/CYP6B28 and CYP6B9 is a mechanism associated with cypermethrin survivorship in field-collected Helicoverpa zea (Lepidoptera:Noctuidae) moths. Pest Management Science.
G7795	2007	Field Evolved Resistance	USA-- Texas-- Nueces County	Pietrantonio, P. V., Junek, T. A., Parker, R., Mott, D., Siders, K., Troxclair, N., Vargas-Camplis, J., Westbrook, J. K., and Vassiliou, V. A. (2007). Detection and evolution of resistance to the pyrethroid cypermethrin in Helicoverpa zea (Lepidoptera: Noctuidae) populations in Texas. Environmental Entomology, 36 (5) in press.
G6536	2000	Unspecified	Nicaragua-- Dept of Leon-- Telica	Perez, C.J., P. Alvarado, C. Narvaez, F. Miranda, L. Hernandez, H. Vanegas, A. Hruska, and A.M. Shelton. (2000). Assessment of Insecticide Resistance in Five Insect Pests Attacking Field and Vegetable Crops in Nicaragua. Journal of Economic Entomolgy, 93(6) 1779-1787.
G6537	2000	Unspecified	Nicaragua-- Dept of Leon-- Nagarote	Perez, C.J., P. Alvarado, C. Narvaez, F. Miranda, L. Hernandez, H. Vanegas, A. Hruska, and A.M. Shelton. (2000). Assessment of Insecticide Resistance in Five Insect Pests Attacking Field and Vegetable Crops in Nicaragua. Journal of Economic Entomolgy, 93(6) 1779-1787.
G5492	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.

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