Molecular characterization of Bacillus thuringiensis strains to control Spodoptera eridania (Cramer) (Lepidoptera: Noctuidae) population
Machado, Déborah Heloísa Bittencourt
Rev. Bras. entomol.
DATA DE PUBLICAÇÃO
Abstract The main objective of this study was to characterize the toxicity and genetic divergence of 18 Bacillus thuringiensis strains in the biological control of Spodoptera eridania. Bacterial suspensions were added to the S. eridania diet. Half of the selected B. thuringiensis strains caused high mortality seven days after infection. The genetic divergence of B. thuringiensis strains was assessed based on Enterobacterial Repetitive Intergenic Consensus (ERIC) and Repetitive Extragenic Palindromic (REP) sequences, and five phylogenetic groups were formed. Despite their genetic diversity B. thuringiensis strains did not show any correlation between the collection sites and toxicity to larvae. Some B. thuringiensis strains are highly toxic to S. eridania, thus highlighting the potential of their endotoxins as biopesticides.
- Desenvolvimento de Spodoptera eridania (Cramer) (Lepidoptera: Noctuidae) em diferentes hospedeiros
- Biologia de Spodoptera eridania (Cramer) (Lepidoptera: Noctuidae) em diferentes hospedeiros
- Controle alternativo de Spodoptera frugiperda (Smith) e Spodoptera eridania (Cramer) (Lepidoptera: Noctuidae
- Caracterização dos danos de Spodoptera eridania (Cramer) e Spodoptera cosmioides (Walker) (Lepidoptera: Noctuidae) a estruturas de algodoeiro
- Biologia e tabela de vida de fertilidade de Spodoptera eridania (Cramer) (Lepidoptera: Noctuidae) em morangueiro e videira