Reported Resistance Case(s)

Species: oryzaephilus mercator

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

Active Ingredient: tetrachlorvinphos Z-isomer

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 22248-79-9	Shaugnessy Code: 83702

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G10262	1973	Lab selected after field-evolved resistance**	Senegal-- Diourbel-- Bambey	Dyte, C.E., Forster, R. (1973). Studies on Insecticide Resistance in Oryzaephilus Mercator (Fauv.) (Coleoptera, Silvanidae). Journal of Stored Products Research, 9 159-164.

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