Reported Resistance Case(s)

Species: oryzaephilus mercator

Order	Family	Common Name(s)	Group	Host
coleoptera	cucujidae	merchant grain beetle	AG	grain products

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
G2817	1976	Field Evolved Resistance	Tobago	Champ, B. R. and Dyte, C. E. (1976). FAO Global Survey of Pesticide Susceptibility of Stored Grain Pests, FAO Plant Production Prot.. Ser. No. 5.
G2818	1976	Field Evolved Resistance	Trinidad	Champ, B. R. and Dyte, C. E. (1976). FAO Global Survey of Pesticide Susceptibility of Stored Grain Pests, FAO Plant Production Prot.. Ser. No. 5.
G2820	1976	Field Evolved Resistance	USA-- California	Champ, B. R. and Dyte, C. E. (1976). FAO Global Survey of Pesticide Susceptibility of Stored Grain Pests, FAO Plant Production Prot.. Ser. No. 5.
G2821	1976	Field Evolved Resistance	Jamaica	Champ, B. R. and Dyte, C. E. (1976). FAO Global Survey of Pesticide Susceptibility of Stored Grain Pests, FAO Plant Production Prot.. Ser. No. 5.
G2190	1974	Field Evolved Resistance	Australia-- Western Australia	Rimes, G.D. (1974). Communication to FAO.
G550	1965	Field Evolved Resistance	Gambia	Green, A.A. (1965). In: FAO 1967.

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