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: permethrin

MOA: Sodium channel modulators, Pyrethroids, Pyrethrins, DDT
Group: PYR	CAS #: 52645-53-1	Shaugnessy Code: 109701

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G23081	2024	Field Evolved Resistance	Pakistan-- Punyab-- Lahore	Azhar, H., Khan, A., Khan, T. and Iqbal, N.,. (2024). Characterizing mode of inheritance of permethrin resistance in field strains of rice weevil Sitophilus oryzae (Linnaeus) from Pakistan. Journal of Stored Products Research, 109.
G23082	2024	Field Evolved Resistance	Pakistan-- Punyab-- Gujranwala	Azhar, H., Khan, A., Khan, T. and Iqbal, N.,. (2024). Characterizing mode of inheritance of permethrin resistance in field strains of rice weevil Sitophilus oryzae (Linnaeus) from Pakistan. Journal of Stored Products Research, 109.
G22806	2023	Field Evolved Resistance	Pakistan-- Punyab-- Lahore	Khan, T., Khan, H.A.A., Haider, M.S. et al. (2023). Selection for resistance to pirimiphos-methyl, permethrin and spinosad in a field strain of Sitophilus oryzae: resistance risk assessment, cross-resistance potential and synergism of insecticides. Environ Sci Pollut Res, 30.
G22808	2023	Lab selected after field-evolved resistance**	Pakistan-- Punyab-- Lahore	Khan, T., Khan, H.A.A., Haider, M.S. et al. (2023). Selection for resistance to pirimiphos-methyl, permethrin and spinosad in a field strain of Sitophilus oryzae: resistance risk assessment, cross-resistance potential and synergism of insecticides. Environ Sci Pollut Res, 30.
G22814	2022	Field Evolved Resistance	Pakistan-- Punjab-- Faisalabad	Khan, T., Haider, M. & Khan, H. (2022). Resistance to grain protectants and synergism in Pakistani strains of Sitophilus oryzae (Coleoptera: Curculionidae). Sci Rep, 12.
G22818	2022	Field Evolved Resistance	Pakistan-- Punjab-- Gujranwala	Khan, T., Haider, M. & Khan, H. (2022). Resistance to grain protectants and synergism in Pakistani strains of Sitophilus oryzae (Coleoptera: Curculionidae). Sci Rep, 12.
G22824	2022	Field Evolved Resistance	Pakistan-- Punjab-- Multan	Khan, T., Haider, M. & Khan, H. (2022). Resistance to grain protectants and synergism in Pakistani strains of Sitophilus oryzae (Coleoptera: Curculionidae). Sci Rep, 12.
G22827	2022	Field Evolved Resistance	Pakistan-- Punjab-- Bahawalpur	Khan, T., Haider, M. & Khan, H. (2022). Resistance to grain protectants and synergism in Pakistani strains of Sitophilus oryzae (Coleoptera: Curculionidae). Sci Rep, 12.

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