Reported Resistance Case(s)

Species: phorodon humuli

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

Active Ingredient: endosulfan

MOA: GABA-gated chloride channel antagonists, Cyclodiene organochlorines
Group: CYCLO	CAS #: 115297	Shaugnessy Code: 79401

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G3946	1981	Field Evolved Resistance	Germany	Hrdy, I. (1981). Personal communications.
G3947	1981	Field Evolved Resistance	United Kingdom	Muir, R. C. and Cranham, J. E. (1981). Resistance to pesticides in damson-hop aphid and red spider mite on English hops.. IOBC/WPRS Bull., 4 11-15.

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