Avaliação de acessos de milho para resistência a Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) em laboratório

Lima, Francisca Wilma Neide de; Ohashi, Orlando Shigueo; Souza, F. R. S. de; Gomes, Fabrícia da Silva

doi:10.1590/s0044-59672006000200003

Cited by 15 publications

(16 citation statements)

References 5 publications

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“…The larvae of S. frugiperda feed on maize leaves and ears, reducing the photosynthetic capacity of the plant and its production because of damage to the reproductive structures (Lima, Ohashi, Souza, & Gomes, 2006). This damage depends on the plant phenological state, infestation period and intensity of pest infestation (Cruz et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Effect of the flavonoid rutin on the biology of Spodoptera frugiperda (Lepidoptera: Noctuidae)

et al. 2016

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ABSTRACT. The fall armyworm Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) is a major pest of maize crops in Brazil. The effects of plant metabolites on the biology and behavior of insects is little studied. The aim of the study was to evaluate the activity of rutin on the biology of the S. frugiperda by using artificial diets containing rutin. The study evaluated four treatments: regular diet (control group) and diets containing 1.0, 2.0 and 3.0 mg g -1 of rutin. The following biological variables parameters of the larvae were evaluated daily: development time (days), larval and pupal weight (g) and viability (%), adult longevity and total life cycle (days). A completely randomized experimental design was used with 25 replication. The rutin flavonoid negatively affected the biology of S. frugiperda by prolonging the larval development time, reducing the weight of larvae and pupae and decreasing the viability of the pupae. The addition of different concentrations of rutin prolonged the S. frugiperda life cycle. The use of plant with insecticidal activity has the potential with strategy in IPM.Keywords: fall armyworm, insecticide plant, secondary metabolite, flavonoid.Efeito do flavonoide rutina na biologia de Spodoptera frugiperda (Lepidoptera: Noctuidae) RESUMO. A lagarta Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) é a principal praga da cultura do milho no Brasil. A ação de substância química de defesa de planta, na biologia e comportamento de inseto é pouco estudada. O objetivo do trabalho foi avaliar a ação de rutina e os efeitos na biologia da lagarta S. frugiperda, utilizando-se dieta artificial acrescida com este flavonoide. O trabalho consistiu de quatro tratamentos: dieta normal (testemunha) e dieta com adição de 1,0; 2,0 e 3,0 mg g -1 de rutina. As lagartas foram avaliadas diariamente, observando os parâmetros biológicos: período, peso e viabilidade larval, período, peso e viabilidade pupal, longevidade de adultos e ciclo total. Utilizou-se o delineamento experimental inteiramente casualizado com 25 repetições. O flavonoide rutina mostrou-se influenciar de forma negativa a biologia de S. frugiperda por prolongar o período larval, diminuir o peso larval e pupal e viabilidade pupal. A adição de rutina nas diferentes concentrações prolongou o ciclo de S. frugiperda. O uso de planta com atividade inseticida tem potencial como estratégia em MIP.Palavras-chave: lagarta do cartucho, planta inseticida, metabolito secundário, flavonoide.

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Section: Introductionmentioning

confidence: 99%

Effect of the flavonoid rutin on the biology of Spodoptera frugiperda (Lepidoptera: Noctuidae)

et al. 2016

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“…O cultivo do milho no período "safrinha" oferece boas condições para o desenvolvimento dessa praga, sendo a resistência e o alto custo dos defensivos utilizados, os principais problemas encontrados para o seu controle (Yu et al, 2003;Lima et al, 2006).…”

Section: Introductionunclassified

Atividade inseticida do óleo essencial de pimenta longa (Piper hispidinervum C. DC.) sobre lagarta-do-cartucho do milho Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae)

Lima

Cardoso²,

Moraes³

et al. 2009

Acta Amaz.

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RESUMOOs objetivos desta pesquisa foram a obtenção e caracterização do óleo essencial de folhas de pimenta longa Piper hispidinervum, e avaliação de seu efeito no comportamento e/ou mortalidade da lagarta-do-cartucho do milho Spodoptera frugiperda. O óleo essencial foi obtido pela técnica "arraste a vapor d'água", utilizando-se de um aparelho de Clevenger modificado, e posteriormente submetido, à análise por CG-EM e CG. Foram realizados testes de ingestão e contato tópico em lagartas de 1° e 3° ínstar. Os resultados constataram que o óleo essencial de pimenta-longa possui atividade inseticida sobre S. frugiperda, causando redução alimentar e mortalidade, sendo o safrol (82%) seu constituinte majoritário. Verificou-se mortalidade no teste de ingestão em lagartas de 1° ínstar com CL 50 = 16,2 mg/mL e para lagartas de 3° ínstar a CL 50 = 9,4 mg/mL com redução alimentar CD 50 = 0,72 mg/mL; e de toxicidade aguda no teste de contato tópico com DL 50 = 277,91 μg/lagarta, após o intervalo de tempo de 96 horas, sendo também observados sintomas de neurotoxicidade, como o efeito knock-down. PALAVRAS-CHAVE:Lagarta-do-cartucho, Safrol, Manejo integrado de pragas.Insecticidal Activity of Long-pepper essential oil (Piper hispidinervum C. DC.) on fall armyworm Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) ABSTRACT The objectives of this research were to evaluate the chemical composition and bioactivity of the essential oil from the longpepper leaves (Piper hispidinervum) and its effect on the comportment and/or mortality of the fall armyworm (Spodoptera frugiperda). The essential oil was obtained by steam stream distillation, using the modified Clevenger apparatus, the chemical composition was analyzed by GC-MS and GC. Tests of ingestion and topical application in fall armyworm of 1 st and 3 rd ínstar were made. The results showed that the long-pepper essential oil has insecticide activity on S. frugiperda, causing mortality and food reduction, and safrole (82%) as its majority constituent. Mortality was found in the ingestion test in larvae of 1 st ínstar LC 50 = 16.2 mg/mL for larvae of 3 rd ínstar LC 50 = 9.4 mg/mL, with reduced food CD 50 = 0.72 mg/mL; and acute toxicity test of the contact topic with LD 50 = 277.91 μg/larvae, after an interval of 96 hours, neurotoxicity symptoms were also observed, as knock-down effect.

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“…Antibiosis has been shown in AM 013, RO 009 and MA 002 corn genotypes, where there was lower larval viability; and antixenosis was found in RR 168 and PA 110, where lower leaf consumption by FAW occurred (Lima et al, 2006). Cunha et al (2008) observed antibiosis in BRS Missões -B and BR 111 VI Sel.…”

Section: Introductionmentioning

confidence: 97%

“…The fall armyworm (FAW) Spodoptera frugiperda (JE Smith, 1797) (Lepidoptera: Noctuidae) is a polyphagous species and is considered the primarily pest of this crop (Fernandes et al, 2003;Lima et al, 2006;Mendes et al, 2011). The damage arises from the continual consumption of leaf tissue by the first instars through older larvae, which often cause extensive defoliation and the complete destruction of the plant.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Resistance of corn genotypes to fall armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae)

Paiva¹,

Corrêa²,

Silva³

et al. 2016

Afr. J. Biotechnol.

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Avaliação de acessos de milho para resistência a Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) em laboratório

Cited by 15 publications

References 5 publications

<b>Effect of the flavonoid rutin on the biology of <i>Spodoptera frugiperda</i> (Lepidoptera: Noctuidae)

<b>Effect of the flavonoid rutin on the biology of <i>Spodoptera frugiperda</i> (Lepidoptera: Noctuidae)

Atividade inseticida do óleo essencial de pimenta longa (Piper hispidinervum C. DC.) sobre lagarta-do-cartucho do milho Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae)

Resistance of corn genotypes to fall armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae)

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