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Insecticidal activity of two organic extracts from Libidibia coriaria (Jacq.) Schltdl. fruits against Spodoptera frugiperda J. E. Smith

Itzel Sánchez-Alonso,Alicia Fonseca-González,Agustín Olmedo-Juárez,J. Olivares-Pérez,M. González-Cortázar,Abraham Monteon-Ojeda,Saúl Rojas Hernández

Published 2024 in Natural Product Research

ABSTRACT

Abstract This study describes the chemical characterisation of two extracts (ethyl acetate, EtOAc-E and hexanic, Hx-E) from Libidibia coriaria fruits and their insecticidal properties on Spodoptera frugiperda. The HPLC analysis in EtOAct-E revealed the presence of ellagic acid and phenolic compounds. The CG-MS analysis in Hx-E revealed the presence of Hexadecanoic acid, 11-Methylheptacosane, Dodecanoic acid and Nonacosane as major compounds. The application of both extracts was performed on the dorsal part of each larva via aspersion. The larval mortality, relative growth and emergence percentage of adults were evaluated. The Hx-E caused a 93.33% mortality at 100 mg/mL at 24 h post-application. A minor relative growth with both EtOAc-E (12.64 mg) and Hx-E (7.90 mg) was observed compared with their respective negative controls (methanol = 25.05 mg and tween20 = 24.53 mg). The lowest emergence percentage of adults with the Hx-E (25%) at 50 mg/mL was observed. Libidibia coriaria fruits exhibit insecticidal properties against S. frugiperda. Graphical Abstract

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