Fitness costs and stability of Cry1Fa resistance in Brazilian populations of Spodoptera frugiperda.
Oscar F Santos-AmayaClébson S TavaresJoão Victor C RodriguesSilverio O CamposRaul Narciso C GuedesAnaliza P AlvesEliseu José G PereiraPublished in: Pest management science (2016)
In combination, these results indicate the lack of strong fitness costs associated with resistance to Cry1Fa in the fall armyworm strains studied. These findings suggest that Cry1Fa resistance in S. frugiperda populations is unlikely to be counterselected in Cry1Fa-free environments. © 2016 Society of Chemical Industry.