Reported Resistance Case(s)

Species: saissetia oleae

Order	Family	Common Name(s)	Group	Host
homoptera	coccidae	black scale	AG	citrus

Active Ingredient: hydrogen cyanide

MOA: Unknown Mode of Action (general), Undetermined MOA
Group: FUM	CAS #: 74-90-8	Shaugnessy Code: 45801

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G2	1922	Field Evolved Resistance	USA-- California	Quayle, H. J. (1922). Resistance of certain scale insects in certain localities of hydrocyanic acid fumigation.. J. Econ. Entomol., 15 400-04.

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