Reported Resistance Case(s)

Species: chromaphis juglandicola

Order	Family	Common Name(s)	Group	Host
homoptera	aphididae	walnut aphid	AG	walnut

Active Ingredient: parathion

MOA:	Acetylcholine esterase inhibitors, Organophophates
Group:	OP CAS #: 56382 Shaugnessy Code: 57401

Resistance Case(s)

Case Id	Year of Report	Location	Reference
	1954	USA -- California	Michelbacher, A. E., Cassil, C. C. and Davis, C. S. (1954). Walnut aphid resistant to parathion in nothern California. J. Econ. Entomol., 47, 366-67.