Reported Resistance Case(s)

Species: delia antiqua

Order	Family	Common Name(s)	Group	Host
diptera	anthomyiidae	onion maggot	AG	vegetables

Active Ingredient: dichlofenthion

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 97176	Shaugnessy Code: 28601

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G2954	1976	Field Evolved Resistance	USA-- Michigan	Harris, C. R. and Svec, . (1976). Onion maggot resistance to insecticides.. J. Econ. Entomol., 69 617-20.
G2955	1976	Field Evolved Resistance	Canada-- Ontario	Harris, C. R. and Svec, . (1976). Onion maggot resistance to insecticides.. J. Econ. Entomol., 69 617-20.
G1766	1971	Field Evolved Resistance	United Kingdom	(1971). Reports of the Seventh Session of the FAO Working Party of Experts on Resistance of Pests to Pesticides.. FAO 1971. FAO, Rome 1971.

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