Trichilia (Meliaceae) Plants: an Important Source of Biomolecules with Insecticidal Properties

The repeated application of synthetic insecticides has the potential to induce insecticide resistance. Plant extracts are a good source of bioinsecticides, as these extracts often have several bioactive compounds, thus reducing the occurrence of resistance. The genus Trichilia (Meliaceae) is distrib...

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Bibliographic Details
Published in:The Florida entomologist 2018-09, Vol.101 (3), p.470-479
Main Authors: García-Gómez, A, Figueroa-Brito, R, Serrano, L. A. García, Jiménez-Pérez, A
Format: Article
Language:English
Subjects:
Acetates
Acetic acid
Acetone
Artificial diets
Bark
Bioactive compounds
Biochemistry
Biocompatibility
bioinsecticida
bioinsecticide
Biological activity
Biological insect control
Biological pest control
Biological products
Biomolecules
Biotechnology
Botanical insecticides
Control
corteza
Decoloring
Diet
Duration
Esters
Ethyl acetate
extracción secuencial
Fecundity
fertilidad
Fertility
Hexanes
Insect larvae
Insecticide resistance
Insecticides
Insects
Instars
Larval development
Lepidoptera
Limonoids
Meliaceae
Metabolites
Methods
Mortality
Noctuidae
Pesticide resistance
Physiology
Phytochemicals
Plant extracts
Plants (botany)
Plants (Organisms)
Properties
sequential extraction
Solvents
Sustainability
Trichilia
Trichilia hirta
Weight
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Summary:The repeated application of synthetic insecticides has the potential to induce insecticide resistance. Plant extracts are a good source of bioinsecticides, as these extracts often have several bioactive compounds, thus reducing the occurrence of resistance. The genus Trichilia (Meliaceae) is distributed widely in Mexico and it is a sustainable source of bioactive compounds because their bark is shed annually and may be collected without harming the tree. This research evaluated the effect on mortality, weight, larval and pupal duration, fecundity, and fertility of Copitarsia decolora Guenée (Lepidoptera: Noctuidae) when fed with a diet supplemented with different concentrations of hexane, ethyl acetate, acetone, methanol, and aqueous extracts of the Trichilia americana Sessé & Moc., Trichilia hirta L., and Trichilia havanensis Jacq. (Meliaceae) bark. All the extracts provoked a dose-response effect on the variables evaluated. The hexane extract of the 3 species was lethal to the larval stage, with the hexane extract of T. americana being the most toxic of the 3 species, followed by that of T. hirta. The aqueous extract of T. hirta displayed an insecticidal effect on the early instars. The ethyl acetate extracts of T. americana and hexane extracts of T. hirta inhibited growth and induced mortality. The extracts reduced fecundity and fertility of the insect. Extracts of T. americana reduced reproductive potential to a greater extent than did T. hirta and T. havanensis. This research suggests that bark extracts of T. americana, T. hirta, and T. havanensis are a sustainable source of biomolecules. La aplicación repetida de insecticidas sintéticos tiene el potencial de inducir resistencia a los insecticidad. Los extractos de plantas son una buena fuente de bioinsecticidas, ya que estos extractos a menudo tienen varios compuestos bioactivos, lo que reduce la apariencia de resistencia. El género Trichilia (Meliaceae) está ampliamente distribuido en México y es una fuente sustentable de compuestos bioactivos ya que su corteza se desprende anualmente y puede recolectarse sin dañar el árbol. Este trabajo evaluó el efecto sobre la mortalidad, peso, duración de larvas y pupas, fecundidad y fertilidad de Copitarsia decolora Guenée (Lepidoptera: Noctuidae) al ser alimentadas con una dieta suplementada a diferentes concentraciones de extracto hexánico, acetato de etilo, acetónico, metanólico y acuoso de corteza de Trichilia americana Sessé & Moc., Trichilia hirta L., y T
ISSN:0015-4040
1938-5102
DOI:10.1653/024.101.0305