Reported Resistance Case(s)

Species: schizaphis graminum

Order	Family	Common Name(s)	Group	Host
homoptera	aphididae	greenbug	AG	sorghum

Active Ingredient: chlorpyrifos

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 2921882	Shaugnessy Code: 59101

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G4057	1982	Field Evolved Resistance	USA-- Ohio	Niemczyk, H. D. and Moser, J. R. (1982). Greenbug occurrence and control on turfgrasses in Ohio, pp.. 105-11. In: H. D. Niemczyk and B. G. Joyner (Eds.), Advances in Turfgrass Entomology, Hammer Graphics, Piqua, Ohio, 150 pp..

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