Reported Resistance Case(s)

Species: sitophilus oryzae

Order	Family	Common Name(s)	Group	Host
coleoptera	curculionidae	lesser rice weevil	AG	corn, rice, sorghum, stored grain

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
G20481	2020	Field Evolved Resistance	Egypt-- Alexandria	Attia, M. A., Wahba, T. F., Shaarawy, N., Moustafa, F. I., Guedes, R. N. C., and Dewer, Y. (2020). Stored grain pest prevalence and insecticide resistance in Egyptian populations of the red flour beetle Tribolium castaneum (Herbst) and the rice weevil Sitophilus oryzae (L.). Journal of Stored Products Research , 87 101611.
G3509	1979	Field Evolved Resistance	China	Champ 1979. (1979).
G3334	1977	Field Evolved Resistance	Australia-- South Australia	Kerr, R. W. (1977). Resistance to control chemicals in Australian arthropod pests.. J. Aust. Entomol. Soc., 16 327-34.
G3335	1977	Field Evolved Resistance	Australia-- Western Australia	Kerr, R. W. (1977). Resistance to control chemicals in Australian arthropod pests.. J. Aust. Entomol. Soc., 16 327-34.
G3336	1977	Field Evolved Resistance	Australia-- Tasmania	Kerr, R. W. (1977). Resistance to control chemicals in Australian arthropod pests.. J. Aust. Entomol. Soc., 16 327-34.
G3337	1977	Field Evolved Resistance	Australia-- Queensland	Kerr, R. W. (1977). Resistance to control chemicals in Australian arthropod pests.. J. Aust. Entomol. Soc., 16 327-34.
G3338	1977	Field Evolved Resistance	Australia-- Northern Territory	Kerr, R. W. (1977). Resistance to control chemicals in Australian arthropod pests.. J. Aust. Entomol. Soc., 16 327-34.
G3339	1977	Field Evolved Resistance	Australia-- New South Wales	Kerr, R. W. (1977). Resistance to control chemicals in Australian arthropod pests.. J. Aust. Entomol. Soc., 16 327-34.
G3340	1977	Field Evolved Resistance	Australia-- Victoria	Kerr, R. W. (1977). Resistance to control chemicals in Australian arthropod pests.. J. Aust. Entomol. Soc., 16 327-34.
G2081	1973	Field Evolved Resistance	India	Rajak, R. L., Ghate, M. and Krishnamurthy, K. (1973). Bioassay technique for resistance to malthion of stored products.. Int. Pest Cont., 15 11-16.

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