Reported Resistance Case(s)

Species: phorodon humuli

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

Active Ingredient: phosalone

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 2310170	Shaugnessy Code: 97701

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G3977	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.
G3978	1981	Field Evolved Resistance	Ukraine	Borovoi, A. P. (1981). Resistance to insecticides in the two-spotted spider mite and the hop aphid on hops in the Ukranian SSR.. IOPC/WPRS Bull., 4 16-20.

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