Reported Resistance Case(s)

Species: psilia rosae

Order	Family	Common Name(s)	Group	Host
diptera	psilidae	carrot rust fly	AG	carot, celery, parsley, parsnip

Active Ingredient: phorate

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 298022	Shaugnessy Code: 57201

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G4037	1982	Field Evolved Resistance	United Kingdom	Thompson, A. R. and Harris, C. R. (1982). An indication of phorate-tolerance in a population of carrot fly from East Anglia.. Tests of Agrochemicals and Cultivars., 3 18-19.

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