Reported Resistance Case(s)

Species: spodoptera littoralis

Order	Family	Common Name(s)	Group	Host
lepidoptera	noctuidae	egyptian cotton leafworm, army worm	AG	alfalfa, cotton, potato, vegetables

Active Ingredient: methidathion

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 950378	Shaugnessy Code: 100301

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G5827	1997	Unspecified	Egypt	Smafhe, G., and D. Degheele. (1997). Comparitive toxicity and tolerance for the ecdysteroid mimic tebufenozide in a laboratory and field strain of cotton leafworm (Lepidoptera: Noctuidae). Journal of Economic Entomology, 90(2) 278-282.

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