Reported Resistance Case(s)

Species: spodoptera frugiperda

Order	Family	Common Name(s)	Group	Host
lepidoptera	noctuidae	fall armyworm	AG	cotton, grains, grasses, sugarcane

Active Ingredient: metaflumizone

MOA: Voltage-dependent sodium channel blocker, Metaflumizone
Group: OXA	CAS #: 139968-49-3	Shaugnessy Code: 0

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G23479	2025	Lab selected*	Brazil-- Bahia-- Roda Velha	Kaiser IS, Guidolin AS, Kanno RH, de Assunção E Amaral FS, Monteiro CP, Omoto C. (2025). Inheritance patterns of resistance to sodium channel blocker insecticides in Spodoptera frugiperda (Lepidoptera: Noctuidae). Bull Entomol Res, 115 588-597.

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