Reported Resistance Case(s)

Species: spodoptera exigua

Order	Family	Common Name(s)	Group	Host
lepidoptera	noctuidae	beet army worm, lesser army worm	AG	cotton, tomato, celery, lettuce, cabbage and alfalfa

Active Ingredient: fenvalerate

MOA: Sodium channel modulators, Pyrethroids, Pyrethrins, DDT
Group: PYR	CAS #: 51630581	Shaugnessy Code: 109301

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G5542	1994	Unspecified	Mexico	Brewer, M.J., and J.T. Trumble. (1994). Beet Armyworm Resistance to Fenvalerate and Methomyl: Resistance Variation and Insecticide Synergism. Journal of Agricultural Entomology, 11 291-300.
G5217	1990	Field Evolved Resistance	USA	Brewer, M.J., J.T. Trumble, B. Alvorado-Rodriguez, and W.E. Chaney. (1990). Beet Armyworm (Lepidoptera: Noctuidae) Adult and Larval Susceptibility to three insecticides in managed habitats and relationship to laboratory selection for resistance. Journal of Economic Entomology, 83(6) 2136-2146.
G5220	1990	Field Evolved Resistance	Mexico	Brewer, M.J., J.T. Trumble, B. Alvorado-Rodriguez, and W.E. Chaney. (1990). Beet Armyworm (Lepidoptera: Noctuidae) Adult and Larval Susceptibility to three insecticides in managed habitats and relationship to laboratory selection for resistance. Journal of Economic Entomology, 83(6) 2136-2146.
G5258	1990	Field Evolved Resistance	Mexico	Brewer, M. J., J. T. Trumble, B. Alvarado-Rodriguez and W. E. Chaney. (1990). Beet armyworm (Lep., Noctuidae) adult and larval susceptibility to three insecticides in managed habitats and relationship to labortatory selection of resistance.. J. Econ. Entomol. (in press).
G5080	1989	Field Evolved Resistance	USA	Brewer, M.J., and J.T. Trumble. (1989). Field Monitoring for Insecticide Resistance in Beet Armyworm (Lepidoptera: Noctuidae). Journal of Economic Entomology, 82(6) 1520-1526.

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