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

Autor(es)

Bezerra Da Silva, Cherre Sade ^[1] ; Postali Parra, Jose Roberto ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Lab Biol Insetos, Dept Entomol & Acarol, Escola Super Agr Luiz de Queiroz, BR-13418900 Piracicaba, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Revista Brasileira de Entomologia; v. 57, n. 3, p. 347-349, JUL-SEP 2013.
• Citações Web of Science: 8

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. (AU)

• Processo FAPESP: 07/07054-8 - Modelo de liberação de Telenomus remus Nixon (Hymenoptera: Scelionidae) e Trichogramma atopovirilia Oatman & Platner (Hym.: Trichogrammatidae) visando ao controle de Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)
• Beneficiário: Cherre Sade Bezerra da Silva
• Modalidade de apoio: Bolsas no Brasil - Doutorado