2016
DOI: 10.1590/1983-21252016v29n314rc
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Inseticidal Oils From Amazon Plants in Control of Fall Armyworm

Abstract: -The potential insecticidal of oils from southwestern Amazon plants against Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) was investigated. Initial bioassays were performed with undiluted oils from 11 plant species. The efficacy of the oils was evaluated against eggs and third-instar caterpillars of S. frugiperda. The oils of Copaifera sp. (Leguminosae), Orbignya phalerata (Arecaceae), and Carapa guianensis (Meliaceae) displayed a high efficacy against the caterpillars and were used in sub… Show more

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Cited by 9 publications
(8 citation statements)
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“…Rosemary pepper (L. origanoides) essential oil presented the fastest action and the highest pesticidal activity against the three evaluated instars, inducing in caterpillars, hyperactivity, tremor and rigid paralysis, possibly due to energy loss and neuromuscular fatigue induced by neuroexcitation mainly attributed to the action of carvacrol (30.37%), in addition to α-himachalene (10.38%), terpinolene (7.96%), α-pinene (5.08%) and β-myrcene (3.90%) (Dos Santos et al, 2016). Carvacrol has enormous insecticidal potential and is able to compete for nicotinic acetylcholine receptors (nAChRs), acting as an acetylcholinesterase (AChE) inhibitor (El-Wakeil, 2013), octopamine receptor blocker (Melo et al, 2018), or tyramine receptors (TyrR), which is a precursor of octopamine in cells of vinegar fly Drosophila melanogaster Meigen (Diptera; Drosophilidae) (Campos et al, 2018).…”
Section: Discussionmentioning
confidence: 99%
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“…Rosemary pepper (L. origanoides) essential oil presented the fastest action and the highest pesticidal activity against the three evaluated instars, inducing in caterpillars, hyperactivity, tremor and rigid paralysis, possibly due to energy loss and neuromuscular fatigue induced by neuroexcitation mainly attributed to the action of carvacrol (30.37%), in addition to α-himachalene (10.38%), terpinolene (7.96%), α-pinene (5.08%) and β-myrcene (3.90%) (Dos Santos et al, 2016). Carvacrol has enormous insecticidal potential and is able to compete for nicotinic acetylcholine receptors (nAChRs), acting as an acetylcholinesterase (AChE) inhibitor (El-Wakeil, 2013), octopamine receptor blocker (Melo et al, 2018), or tyramine receptors (TyrR), which is a precursor of octopamine in cells of vinegar fly Drosophila melanogaster Meigen (Diptera; Drosophilidae) (Campos et al, 2018).…”
Section: Discussionmentioning
confidence: 99%
“…Exposure larvicidal activity bioassay was performed using filter paper discs (85 mm) impregnated with 0.8 mL essential oil's solutions or controls, placed in Petri dishes (90 × 15 mm) and allowed to stand 30 min (Olivero-Verbel et al, 2010;Dos Santos et al, 2016). After drying, the caterpillars were released in the center of the treated surfaces, providing an artificial diet fragment (Greene et al, 1976) to prevent starvation, and closing the plates with plastic film.…”
Section: Larvicidal Activity Bioassay By Surface Exposurementioning
confidence: 99%
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“… Deletre et al (2016) found that the main compound of citronella essential oil may react with insect olfactory receptors, leading to insect avoidance behavior. Santos et al (2016) found that rosemary essential oil contained carvacrol (30.37%), α-himalayanene (10.38%), terpinene (7.96%), α-pinene (5.08%), and β-myrcene (3.90%), and other substances can cause symptoms such as hyperactivity, tremor, nerve paralysis, and muscle fatigue in caterpillars, resulting in a better insecticidal activity. El-wakeil, (2003) reported that carvacrol in essential oil had great insecticidal potential, which can compete with nicotinic acetylcholine receptors and can be used as an acetylcholinesterase inhibitor.…”
Section: Discussionmentioning
confidence: 99%
“…Percebe-se, ainda, que o óleo da madeira de Copaifera sp. apresenta maior toxicidade para as lagartas do que as demais espécies (CL 50 = 7.50% (v/v), sendo 6,84 vezes mais tóxico que o óleo de sementes da Orbignya phalerata (CL 50 = 51.31% (v/v)) e 8,11 vezes mais tóxico que o óleo das sementes de Carapa guianensis (CL 50 = 60.84 % (v/v))(SANTOS et al, 2016).As espécies Banara guianensis, Clavija weberbaueri, Mayna parvifolia e Ryania speciosa apresentam efeito inseticida na concentração de 5 mg mL -1 sobre operárias de Atta laevigata. O extrato de M. parvifolia se destaca pela alta mortalidade, 82% em 72 horas, enquanto os extratos de Banara guianensis, Clavija weberbaueri e Ryania speciosa promovem a mesma mortalidade (68% às 72 horas após a aplicação)(GOUVÊA et al, 2010) Cerda et al (2019).…”
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