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Chilean Journal of Agricultural Research
Instituto de Investigaciones Agropecuarias, INIA
ISSN: 0718-5820
EISSN: 0718-5839
Vol. 76, No. 1, 2016, pp. 55-61
Bioline Code: cj16008
Full paper language: English
Document type: Research Article
Document available free of charge

Chilean Journal of Agricultural Research, Vol. 76, No. 1, 2016, pp. 55-61

 en Malpighia emarginata check for this species in other resources DC. bagasse acetone extract: Phenolic compounds and their effect on Spodoptera frugiperda check for this species in other resources (J.E. Smith) (Lepidoptera: Noctuidae)
Marques, Tamara R.; Caetano, Aline A.; Alves, Dejane S.; Ramos, Vinicius de O.; Simão, Anderson A.; Carvalho, Geraldo A. & Corrêa, Angelita D.

Abstract

Annually, several tons of residues that are rich in phenolic compounds are produced during the processing of acerola ( Malpighia emarginata check for this species in other resources DC.) juice. Adding value to these residues is of great interest, since they can be a viable solution in the search for natural substances with insecticidal action and low impact on the environment and humans. Taking into account the economic losses from the attacks by the fall armyworm Spodoptera frugiperda check for this species in other resources (J.E. Smith) (Lepidoptera: Noctuidae) in different crops, the objective of this study was to evaluate the effect of the extract of acerola bagasse flour (ABF) against this insect and determine the phenolic compounds in this extract. Bagasse of acerola (BRS238 or Frutacor clon) generated after juice production, was frozen and lyophilized. To obtain the extract, 6 g ABF was mixed with 60 mL acetone:water solution (7:3 v/v), and the extract was lyophilized. Spodoptera frugiperda caterpillars, 48 h-old, obtained by the maintenance breeding, were transferred to glass tubes supplied with an artificial diet containing the ABF extract at 0, 250, 500, 1000, and 2000 mg L-1 diet. The following variables were evaluated: duration and survival of larval and pupal stages, pupal weight, sex ratio, adult longevity, oviposition period, number of egg masses, and total number of eggs. The ABF extract contained several phenolic compounds including gallic acid, epigallocatechin gallate, catechin, p-coumaric acid, salicylic acid, and quercetin. The extract was toxic to S. frugiperda, prolonging the pre-pupal stage and increasing the mortality of caterpillars.

Keywords
Acerola; fall armyworm; natural product; pest control; toxicity

 
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