Melia azedarach L. Fruit Extract as a potencial candidate in controlling the Neuraeschna Hagen, 1867 (Odonata: Aeshnidae), predominant predators for fish fingerlings

Authors

  • Osmar Tomazelli Jr Epagri
  • Gilza Maria Souza-Franco Community University of Chapecó Region (UNOCHAPECÓ)
  • Antonio Munarini Community University of Chapecó Region (UNOCHAPECÓ)
  • Rivaldo Niero University of Vale do Itajaí (UNIVALI)
  • Franco Delle Monache University of Vale do Itajaí (UNIVALI)
  • Jacir Dal Magro Community University of Chapecó Region (UNOCHAPECÓ)

DOI:

https://doi.org/10.14210/bjast.v20n1.4465

Abstract

Odonata larvae in fishponds prey on fish fingerlings and decrease the profits from production. With the goal of eliminating these larvae from fishponds, large quantities of pesticides are applied. These products are toxic to fish and have unpredictable effects on the food chain. The objective of this study is to evaluate the effect of the plant extract of fruits of Melia azedarach (CEE) and of methyl parathion (MP) adsorbed in silica in the control of Neuraeschna larvae (Odonata: Aeshnidae). The LC50-18h for CEE was 0.57 mg L-1, and for MP the LC50-12h was 0.17 mg L-1. Two compounds  with the highest concentration were isolated and identified from CEE, linoleic acid and melianone. The latter is a triterpene precursor of limonoids, compounds with insecticide properties. The substitution of synthetic pesticides for natural products is a path towards the sustainability of fish farming.

Author Biographies

Osmar Tomazelli Jr, Epagri

Research Center for Family Farming, PO Box 791, 89 801- 970, Chapecó, SC, Brazil

Gilza Maria Souza-Franco, Community University of Chapecó Region (UNOCHAPECÓ)

Area of Exact and Environmental Sciences, PO Box 1141, 89.809-000, Brazil, CP 1141, Cep.89.809-000, Brazil

Antonio Munarini, Community University of Chapecó Region (UNOCHAPECÓ)

Area of Exact and Environmental Sciences, PO Box 1141, 89.809-000, Brazil, CP 1141, Cep.89.809-000, Brazil

Rivaldo Niero, University of Vale do Itajaí (UNIVALI)

Center for Chemical-Pharmaceutical Research,  Rua Uruguai, 458, bloco 17, ItajaI-SC, 88.302-202, Brazil

Franco Delle Monache, University of Vale do Itajaí (UNIVALI)

Center for Chemical-Pharmaceutical Research,Rua Uruguai, 458, bloco 17, ItajaI-SC, 88.302-202, Brazil

Jacir Dal Magro, Community University of Chapecó Region (UNOCHAPECÓ)

Area of Exact and Environmental Sciences, PO Box 1141, 89.809-000, Brazil, CP 1141, Cep.89.809-000, Brazil.

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Published

2016-09-14

Issue

Vol. 20 No. 1 (2016)

Section

Research Articles

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