Screening of Brazilian plant extracts as candidates for the control of Spodoptera frugiperda

Resumen

The effects of plant extracts from Actinostemon concolor, Geonoma schottiana, Palicourea rigida and Rudgea viburnoides on Spodoptera frugiperda were evaluated in this study. The extracts were incorporated into an artificial diet (1 mg mL-1 of diet) and offered to S. frugiperda caterpillars. The extract of A. concolor caused 36.1 % mortality in S. frugiperda. Ultrastructural changes were detected in the eggs of adults when the caterpillars were fed with P. rigida and A. concolor extracts. A reduction in trypsin activity was observed after treatment with A. concolor extract. Total phenolics were quantified for A. concolor, G. schottiana, P. rigida and R. viburnoides, with A. concolor presenting the highest content. The residue from methanol/water extraction, which was obtained from the crude extract of A. concolor, contained the phenolic compounds that caused changes in S. frugiperda biology similar to those caused by the crude extract. In conclusion, A. concolor produces secondary metabolites that have insecticidal activity on S. frugiperda

Autores/as

  • Dejane Santos Alves Universidade Federal de Lavras (UFLA)
  • Geraldo Andrade Carvalho Universidade Federal de Lavras (UFLA)
  • Denilson Ferreira Oliveira Universidade Federal de Lavras (UFLA)
  • Angelita Duarte Corrêa Universidade Federal de Lavras (UFLA)

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Publicado
2018-08-05
| 27 |
Cómo citar
Santos Alves, D., Andrade Carvalho, G., Ferreira Oliveira, D., & Duarte Corrêa, A. (2018). Screening of Brazilian plant extracts as candidates for the control of Spodoptera frugiperda. Revista Colombiana De Entomología, 44(1), 32-38. https://doi.org/10.25100/socolen.v44i1.6539
Sección
Sección Control / Artículos de investigación