Reported Resistance Case(s)

Species: phorodon humuli

Order	Family	Common Name(s)	Group	Host
homoptera	aphididae	hop aphid	AG	hop, plum

Active Ingredient: dicrotophos

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 141662	Shaugnessy Code: 35201

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G3954	1981	Field Evolved Resistance	Czechoslovakia	Hrdy, I. And Kriz, J. (1981). Insecticide resistance spectrum in Cxechoslovak populations of the hop aphid Phorodon humuli.. 10BC/WPRS Bull., 4(3) 29-39.
G3955	1981	Field Evolved Resistance	Germany	Hrdy, I. (1981). Personal communications.

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