Reported Resistance Case(s)

Species: aedes vexans

Order	Family	Common Name(s)	Group	Host
diptera	culicidae	treehole breeding mosquito	MED

Active Ingredient: fenthion

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 55389	Shaugnessy Code: 53301

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G3419	1978	Field Evolved Resistance	USA-- Utah	Merrell, R. And Wagstaff, K. (1978). Status or organophosphorus mosquito larvicide resistance in Utah: 1977.. Proc. 13th Annu. Meet. Utah Mosq. Abatement Assoc., 30 10-12.

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