New method for rearing Spodoptera frugiperda in laboratory shows that larval cannibalism is not obligatory

Revista Brasileira de Entomologia

Cherre Sade Bezerra Da Silva¹  José Roberto Postali Parra¹ 

[1] ,Universidade de São Paulo Escola Superior de Agricultura Luiz de Queiroz Departamento de Entomologia e AcarologiaPiracicaba SP ,Brazil

关键词: Artificial diet;    cannibalistic behavior;    fall armyworm;    mass production;    rearing technique;   

DOI  :  10.1590/S0085-56262013005000029

来源: SciELO

【 摘 要 】

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.

【 授权许可】

CC BY-NC-ND   
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