Evaluation of the Acute Effects of Organic Solvents on Adults of Sitophilus zeamais Motschulsky, 1855 (Coleoptera, Curculionidae)

Autores

  • Taciane A. de Oliveira Coordenação de Pesquisas em Entomologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil
  • B. Ronchi-Teles Coordenação de Pesquisas em Entomologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil
  • R. B. de Oliveira Coordenação de Pesquisas em Entomologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil
  • C. R. V. da Fonseca Coordenação de Pesquisas em Entomologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil
  • S. L. R. da Silva Instituto de Ciências Biológicas, Universidade Federal do Amazonas (UFAM), Manaus, AM, Brazil
  • P. A. dos Santos Coordenação de Pesquisas em Produtos Naturais, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil
  • C. V. Nunez Coordenação de Pesquisas em Produtos Naturais, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil

DOI:

https://doi.org/10.5132/jbse.2011.01.002

Palavras-chave:

plant extracts, stored grain pest, solvents, toxicity

Resumo

The continuous use of synthetic insecticides has created problems for the environment and human health. With the objective of reducing such problems, ecofriendly measures have been taken and, in this case, plants have representing an important resource for pest control. Due to the increase of studies using organic extracts in bioassays and the difficulty of finding solubilizant agents that do not interfere in the results, the aim of this work was to evaluated the acute effect of different solvents on Sitophilus zeamais by contact and ingestion assays. The results suggest that pure dimethyl sulphoxide (DMSO) and Tween- 20 solvents have toxic acute effects on adults of S. zeamais, but they can be used diluted at 1 or 5% with no toxic acute effect. On contrary, pure dichloromethane (DCM) and methanol (MeOH) did not cause any acute effect on target organism. Thus, DCM and MeOH solvents even in the pure form and the Tween-20 and DMSO diluted at 1 or 5% can be used as solubilizant agents for apolar to medium polarity plant extracts, involving contact or ingestion assay on adults of S. zeamais.

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Publicado

2024-04-04

Como Citar

Oliveira, T. A. de, Ronchi-Teles, B., Oliveira, R. B. de, Fonseca, C. R. V. da, Silva, S. L. R. da, Santos, P. A. dos, & Nunez, C. V. (2024). Evaluation of the Acute Effects of Organic Solvents on Adults of Sitophilus zeamais Motschulsky, 1855 (Coleoptera, Curculionidae). Ecotoxicology and Environmental Contamination, 6(1), 9–13. https://doi.org/10.5132/jbse.2011.01.002

Edição

v. 6 n. 1 (2011)

Seção

Artigos

Licença

Copyright (c) 2012 Ecotoxicology and Environmental Contamination

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