New method for rearing Spodoptera frugiperda in laboratory shows that larval cannibalism is not obligatory
AUTOR(ES)
Silva, Cherre Sade Bezerra Da, Parra, José Roberto Postali
FONTE
Rev. Bras. entomol.
DATA DE PUBLICAÇÃO
01/10/2013
RESUMO
New method for rearing Spodoptera frugiperda in laboratory shows that larval cannibalism is not obligatory. Here we show, for the first time, that larvae of the fall armyworm (FAW), Spodoptera frugiperda (Lepidoptera, Noctuidae), can be successfully reared in a cohort-based manner with virtually no cannibalism. FAW larvae were reared since the second instar to pupation in rectangular plastic containers containing 40 individuals with a surprisingly ca. 90% larval survivorship. Adult females from the cohort-based method showed fecundity similar to that already reported on literature for larvae reared individually, and fertility higher than 99%, with the advantage of combining economy of time, space and material resources. These findings suggest that the factors affecting cannibalism of FAW larvae in laboratory rearings need to be reevaluated, whilst the new technique also show potential to increase the efficiency of both small and mass FAW rearings.
Documentos Relacionados
- Larval and pupal stage of Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) in sweet and field corn genotypes
- Sobrevivência e desenvolvimento larval de Spodoptera frugiperda (J E Smith) (Lepidoptera: Noctuidae) em hospedeiros alternativos
- Proton motive force is not obligatory for growth of Escherichia coli.
- Aromaticity at position 37 in human epidermal growth factor is not obligatory for activity.
- Functional and phylogenetic analysis shows that Fgf8 is a marker of genital induction in mammals but is not required for external genital development