Evaluation of the Insecticidal Potential of Heterotheca inuloides Acetonic and Methanolic Extracts against Spodoptera frugiperda and Their Ecotoxicological Effect on Poecilia reticulata

Karla Hernández-Caracheo; Lina Guerrero-López; Benjamín Rodríguez-Sánchez; Enrique Rodríguez-Núñez; José Luis Rodríguez-Chávez; Guillermo Delgado-Lamas; Juan Campos-Guillén; Aldo Amaro-Reyes; María Del Carmen Monroy-Dosta; Carlos Eduardo Zavala-Gómez; Ricardo Chaparro-Sánchez; José Alberto Rodríguez-Morales; Víctor Pérez-Moreno; Miguel Angel Ramos-López

doi:10.3390/plants12203555

Evaluation of the Insecticidal Potential of Heterotheca inuloides Acetonic and Methanolic Extracts against Spodoptera frugiperda and Their Ecotoxicological Effect on Poecilia reticulata

Plants (Basel). 2023 Oct 13;12(20):3555. doi: 10.3390/plants12203555.

Authors

Karla Hernández-Caracheo¹, Lina Guerrero-López¹, Benjamín Rodríguez-Sánchez¹, Enrique Rodríguez-Núñez¹, José Luis Rodríguez-Chávez^{1

2}, Guillermo Delgado-Lamas³, Juan Campos-Guillén¹, Aldo Amaro-Reyes¹, María Del Carmen Monroy-Dosta⁴, Carlos Eduardo Zavala-Gómez¹, Ricardo Chaparro-Sánchez⁵, José Alberto Rodríguez-Morales⁶, Víctor Pérez-Moreno¹, Miguel Angel Ramos-López¹

Affiliations

¹ Faculty of Chemistry, Autonomous University of Queretaro, Queretaro 76010, Mexico.
² Ceickor University Center, Bernal Highway, Access to Ezequiel Montes Montes Km. 3, Los Benitos, CP., Queretaro 76299, Mexico.
³ Institute of Chemistry, National Autonomous University of Mexico, Mexico City 04510, Mexico.
⁴ Man and His Environment Department, Metropolitan Autonomous University Xochimilco Unit, Calzada del Hueso 1100, Coyoacan, Mexico City 04960, Mexico.
⁵ Faculty of Informatics, Autonomous University of Queretaro, Av. de las Ciencias s/n, Juriquilla 76101, Mexico.
⁶ Faculty of Engineering, Autonomous University of Queretaro, Queretaro 76010, Mexico.

Abstract

For the management of Spodoptera frugiperda, botanical extracts have been used to reduce the environmental impacts of synthetic chemical pesticides. In the present investigation, the insecticidal activity of the acetonic and methanolic extracts of Heterotheca inuloides (Asteraceae) and of the main compound 7-hydroxy-3,4-dihydrocadalene on this pest as well as its ecotoxicological effect on Poecilia reticulata were evaluated. A greater insecticidal response was obtained from the acetonic extracts than from the methanolic extracts, with LC₅₀ values of 730.4 ppm and 711.7 ppm for samples 1 and 2, respectively. Similarly, there was a lethal effect on 50% of the P. reticulata population at low concentrations in the acetonic extract compared to the methanolic extract. The sesquiterpene 7-hydroxy-3,4-dihydrocadalene has greater insecticidal activity by presenting an LC₅₀ of 44.36 ppm; however, it is classified as moderately toxic for guppy fish.

Keywords: Poecilia reticulata; Spodoptera frugiperda; botanical extract; ecotoxicologic; insecticide.

Grants and funding

This research was supported by the “National Commission for Humanities Science and Technology” (CONAHCYT) with grant numbers 925642 and 1074579. Likewise, by the “Fondo de Proyectos Especiales de Rectoría” (FOPER) 2021 of the Autonomous University of Querétaro (FQU02474) and by the “Somos Química 2021” fund of the Faculty of Chemistry of the Autonomous University of Querétaro for project number 18.