Reported Resistance Case(s)

Species: lygus hesperus

Order	Family	Common Name(s)	Group	Host
hemiptera	miridae	western tarnished plant bug	AG	alfalfa, bean, cotton, safflower

Active Ingredient: toxaphene

MOA: GABA-gated chloride channel antagonists, Cyclodiene organochlorines
Group: CYCLO	CAS #: 8001-35-2	Shaugnessy Code: 80501

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G3367	1977	Field Evolved Resistance	USA-- California	Leigh, T. F., Jackson, C. E., Wynholds, P. F. and Cota, J. A. (1977). Toxicity of selected insecticides applied topically to Lygus hesperus Knight.. J. Econ. Entomol., 70 42-44.
G2477	1974	Field Evolved Resistance	USA-- Washington	Anon. 1974g. (1974).

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