Reported Resistance Case(s)

Species: aonidiella aurantii

Order	Family	Common Name(s)	Group	Host
homoptera	diaspididae	california red scale	AG	citrus

Active Ingredient: methidathion

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 950378	Shaugnessy Code: 100301

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G5961	1998	Unspecified	USA-- California	Grafton-Cardwell, E.E., Y. Ouyang, and J. Salse. (1998). Insecticide Resistance and Esterase Enzyme Variation in the California Red Scale (Homoptera: Diaspididae). Journal of Economic Entomology, 91(4) 812-819.
G7596	1998	Unspecified	USA-- California-- Lindsay	Grafton-Cardwell, E.E., Y. Ouyang, and J. Salse. (1998). Insecticide Resistance and Esterase Enzyme Variation in the California Red Scale (Homoptera: Diaspididae). Journal of Economic Entomology, 91(4) 812-819.
G3549	1979	Field Evolved Resistance	South Africa	Nel, J. J. C., de Lange, L. and van Ark, H. (1979). Resistance of citrus red scale, Aonidella aurantii (Mask.) to insecticides.. J. Entomol. Soc. Southern Afr., 42 275-81.

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