Reported Resistance Case(s)

Species: liriomyza trifolii

Order	Family	Common Name(s)	Group	Host
diptera	agromyzidae	american serpentine leaf miner	AG	chrysanthemum, celery

Active Ingredient: pyrazophos

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 13457-18-6	Shaugnessy Code: 447500

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G5111	1989	Field Evolved Resistance	Canada-- Ontario	Broadbent, A. B. and Pree, A. B. (1989). Resistance to pyrazophos in serpentine leafminer Liriomyza trifollii (Burges) (Diptera: Agromyzidae) in Ontario greenhouses.. Can. Entomol., 121 48-53.

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