Reported Resistance Case(s)

Species: cryptolestes ferrugineus

Order	Family	Common Name(s)	Group	Host
coleoptera	cucujidae	rusty grain beetle	AG	stored cereals

Active Ingredient: malathion

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 121755	Shaugnessy Code: 57701

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G5499	1993	Unspecified	United Kingdom	Wilson, M. (1993). Malathion - Specific Resistance in the Flat Grain Beetle. Resistant Pest Management Newsletter, 5 8-9.
G11766	1990	Lab selected after field-evolved resistance**	England	White, N.D.G., and Bell, R.J. (1990). Relative fitness of a malathion-resistant strain of Cryptolestes ferrugineus (Coleoptera: Cucujidae) when development and oviposition occur in malathion-treated and untreated wheat kernels. Journal of Stored Products Research, 26 23-27.
G2189	1974	Field Evolved Resistance	Australia-- Northern Territory	(1974). Recommended methods for the detection and measurement of resistance of agricultural pests to pesticides. Tentative method for adults of some major beetle pests of stored cereals with malathion or lindane.. FAO 1974. FAO Method No. 15. FAO Plant Prot. Bull., 22 127-37.

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