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: leptophos

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 21609-90-5	Shaugnessy Code: 525300

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G2142	1973	Field Evolved Resistance	Egypt	El-Sayed, M. M. (1973). Personal communication.. (Data In: Georghiou 1974.).

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