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: methomyl

MOA: Acetylcholine esterase inhibitors, Carbamates
Group: CAR	CAS #: 16752775	Shaugnessy Code: 90301

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G5940	1998	Unspecified	USA	Kerns, D.L., J.C. Palumbo, and T. Tellez. (1998). Resistance of Field Strains of Beet Armyworm (Lepidoptera: Noctuidae) from Arizona and California to Carbamate Insecticides. Journal of Economic Entomology, 91(5) 1038-1043.
G7606	1998	Unspecified	USA-- Arizona-- Parker	Mascarenhas, V.J., J.B. Graves, B.R. Leonard, and E.Burris. (1998). Susceptibility of Field Populations of Beet Armyworm (Lepidoptera: Noctuidae) to Commercial and Experimental Insecticides. Journal of Economic Entomology, 91(4) 827-833.
G7605	1998	Unspecified	USA-- California-- Holtville	Mascarenhas, V.J., J.B. Graves, B.R. Leonard, and E.Burris. (1998). Susceptibility of Field Populations of Beet Armyworm (Lepidoptera: Noctuidae) to Commercial and Experimental Insecticides. Journal of Economic Entomology, 91(4) 827-833.
G7604	1998	Unspecified	USA-- Arizona-- Yuma Mesa	Mascarenhas, V.J., J.B. Graves, B.R. Leonard, and E.Burris. (1998). Susceptibility of Field Populations of Beet Armyworm (Lepidoptera: Noctuidae) to Commercial and Experimental Insecticides. Journal of Economic Entomology, 91(4) 827-833.
G7603	1998	Unspecified	USA-- Arizona-- Gadsden	Mascarenhas, V.J., J.B. Graves, B.R. Leonard, and E.Burris. (1998). Susceptibility of Field Populations of Beet Armyworm (Lepidoptera: Noctuidae) to Commercial and Experimental Insecticides. Journal of Economic Entomology, 91(4) 827-833.
G5771	1996	Unspecified	USA-- Arizona	Aldosari, S.A., T.F. Watson, S. Sivasupramaniam, and A.A. Osman. (1996). Susceptibility of Field Populations of Beet Armyworm (Lepidoptera: Noctuidae) to Cyfluthrin, Methomyl, and Profenofos, and Selection for Resistance to Cyfluthrin. Journal of Economic Entomology.
G5772	1996	Unspecified	USA-- Arizona	Aldosari, S.A., T.F. Watson, S. Sivasupramaniam, and A.A. Osman. (1996). Susceptibility of Field Populations of Beet Armyworm (Lepidoptera: Noctuidae) to Cyfluthrin, Methomyl, and Profenofos, and Selection for Resistance to Cyfluthrin. Journal of Economic Entomology.
G5932	1998	Unspecified	USA-- Arizona-- Yuma Valley	Mascarenhas, V.J., J.B. Graves, B.R. Leonard, and E.Burris. (1998). Susceptibility of Field Populations of Beet Armyworm (Lepidoptera: Noctuidae) to Commercial and Experimental Insecticides. Journal of Economic Entomology, 91(4) 827-833.
G7599	1998	Unspecified	USA-- Arizona-- Salome	Mascarenhas, V.J., J.B. Graves, B.R. Leonard, and E.Burris. (1998). Susceptibility of Field Populations of Beet Armyworm (Lepidoptera: Noctuidae) to Commercial and Experimental Insecticides. Journal of Economic Entomology, 91(4) 827-833.
G7600	1998	Unspecified	USA-- Arizona-- Dome Valley	Mascarenhas, V.J., J.B. Graves, B.R. Leonard, and E.Burris. (1998). Susceptibility of Field Populations of Beet Armyworm (Lepidoptera: Noctuidae) to Commercial and Experimental Insecticides. Journal of Economic Entomology, 91(4) 827-833.
G7601	1998	Unspecified	USA-- Arizona-- Somerton	Mascarenhas, V.J., J.B. Graves, B.R. Leonard, and E.Burris. (1998). Susceptibility of Field Populations of Beet Armyworm (Lepidoptera: Noctuidae) to Commercial and Experimental Insecticides. Journal of Economic Entomology, 91(4) 827-833.
G7602	1998	Unspecified	USA-- Arizona-- Texas Hill	Mascarenhas, V.J., J.B. Graves, B.R. Leonard, and E.Burris. (1998). Susceptibility of Field Populations of Beet Armyworm (Lepidoptera: Noctuidae) to Commercial and Experimental Insecticides. Journal of Economic Entomology, 91(4) 827-833.
G5543	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.
G5222	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.
G5219	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.
G5145	1989	Field Evolved Resistance	USA-- California	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.
G5081	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.
G4908	1987	Field Evolved Resistance	USA-- Florida	Yoshida, H. A. and Parrella, M. P. (1987). The beet armyworm in floricultural crops.. Califrornia Agriculture 41:(2)13-15..

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