Larvicidal activity of Maytenus guianensis (Celastraceae) against Aedes aegypti (Diptera: Culicidae)

Martins, Mirilene Mendes; Dias, Alyne Cunha Alves; Facundo, Valdir Alves; Lima, Renato Abreu; Meneguetti, Dionatas Ulises de Oliveira; Silva, Alexandre de Almeida e

doi:10.1590/0037-8682-0835-2020

Cited by 2 publications

(2 citation statements)

References 11 publications

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“…Despite the insecticidal potential of several plant species, according to Vieira et al [16], the toxic mechanisms of action of their bioactive compounds on organisms need to be better understood. These secondary metabolites exert significant larvicidal effects on insects by ingestion or contact [16,17].…”

Section: Introductionmentioning

confidence: 99%

Toxicity of Bioactive Compounds of Strychnos pseudoquina (Loganiaceae) in Spodoptera frugiperda (Noctuidae)

Souza,

Menezes,

Santos

et al. 2024

Sustainability

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The objective of this study was to assess the toxicity of leaf and bark extracts of Strycns pseudoquina and their fractions, as well as flavonoids isolated from its bark, in a population of Spodoptera frugiperda. Crude bark and leaf extracts, as well as fractions of these extracts, were obtained using a rotary evaporator and different solvents; the ethyl acetate fraction was obtained, and flavonoid compounds were isolated, consisting mostly of 3-O-methylquercetin and minimally of strychnobiflavone. The crude extracts, extract fractions, and isolated flavonoids were applied separately to maize leaves, which were offered to S. frugiperda larvae; then, biological parameters of this insect population were evaluated. Toxic effects of topical applications of the isolated flavonoids on the larvae were also evaluated. The results highlighted the larvicidal effects of the crude bark extract and its fractions and the significant toxicity of this crude extract (LC50 = 0.048%), which was six times more toxic to larvae than its ethyl acetate fraction (LC50 = 0.288%). The investigated flavonoids showed no significant larvicidal effect. The pronounced larvicidal effect of S. pseudoquina bark crude extract and its fractions on S. frugiperda indicates that this plant presents an insecticidal potential to be explored in integrated pest management programs.

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Section: Introductionmentioning

confidence: 99%

Toxicity of Bioactive Compounds of Strychnos pseudoquina (Loganiaceae) in Spodoptera frugiperda (Noctuidae)

Souza,

Menezes,

Santos

et al. 2024

Sustainability

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“…Extracts deriving from Celastraceae plant parts have been used as insect repellents and insecticides in traditional agriculture in South America and China (Deepa & Narmatha Bai, 2010). Several sesquiterpenes stand out among bioactive compounds found in this family of plants, since they have the potential to be used for the aforementioned purposes (Avilla et al, 2000;Deepa & Narmatha Bai, 2010;Li et al, 1997;Martins et al, 2021;Spivey et al, 2002). e fact that A. populnea belongs to the Celastraceae group explains the interest in pharmacological studies focused on investigating its crude or isolated and identified bioactive extracts.…”

Section: Introductionmentioning

confidence: 99%

Toxic effects of the crude methanolic extract of Austroplenckia populnea leaves and fractions on the growth of Spodoptera frugiperda

Pires Junior,

Silva Arin,

Menezes

et al. 2023

Acta Agro

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The aim of the current study is to assess the toxicity of Austroplenckia populnea leaf extracts towards the Spodoptera frugiperda population in laboratory conditions. Initially, a crude methanolic extract was obtained from dried leaves of A. populnea. This extract was fractionated using hexane, ethyl acetate, and then methanol. Neonate S. frugiperda larvae were isolated in plastic containers and fed (once) on corn leaf fragments treated with crude and fractions of the investigated plant extracts. The life cycle of the larvae treated with the extracts was monitored. In addition to the intake of leaves treated with the plant extracts, such variables as larval and pupal mortality rate, larval and pupal weight, and larval, pupal, and adult stage duration were evaluated. The crude, hexane, and methanol extract fractions exerted an antixenosis effect on the feeding behaviour of neonate S. frugiperda larvae. A significant antibiosis effect was observed for the hexane fraction of the A. populnea extract, since all of its concentrations promoted a S. frugiperda larval mortality rate differing from that observed for the control. The pupal mortality rate was low, but it did not differ significantly from the mortality rate observed for the control treatment, which was nil. The larvicidal effect of the A. populnea leaf extract, mainly of its hexane fraction, has indicated its potential to be used in integrated S. frugiperda management programs.

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Larvicidal activity of Maytenus guianensis (Celastraceae) against Aedes aegypti (Diptera: Culicidae)

Cited by 2 publications

References 11 publications

Toxicity of Bioactive Compounds of Strychnos pseudoquina (Loganiaceae) in Spodoptera frugiperda (Noctuidae)

Toxicity of Bioactive Compounds of Strychnos pseudoquina (Loganiaceae) in Spodoptera frugiperda (Noctuidae)

Toxic effects of the crude methanolic extract of <i>Austroplenckia populnea</i> leaves and fractions on the growth of <i>Spodoptera frugiperda</i>

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