Bioatividade de extratos aquosos de folhas de plantas na biologia de Spodoptera frugiperda (J.E.Smith, 1797) (Lepidoptera: Noctuidae)

Ronaldo Pavarini, Ana M. A. Lourenço, G. D. Neves, Gláucia M. P. Pavarini
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Abstract

The armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae), is a key pest of corn, as it causes defoliation to plants throughout the year, causing significant economic losses. The most common method for its control is chemical, but the indiscriminate use of pesticides, in addition to causing adverse effects to humans and the environment due to the toxicity of the products, favors the development of resistant individuals, thus causing the insect in question is difficult to control. Plants popularly known as myrtle (Murraya paniculata), guaco (Mikania glomerata), são Caetano melon (Momordica charantia) and lemon balm (Melissa officinalis) have demonstrated pharmacological potential, presenting repellent or toxic effects to insects. Thus, the objective of this work was to analyze in the laboratory the insecticidal activity of M. paniculata, M. glomerata, M.charantia and M. officinalis on the biological parameters of S. frugiperda, through the incorporation of extracts in artificial diets. Based on the results obtained, a significant insecticidal activity of the myrtle leaf extract (Murraya paniculata) was observed on S. frugiperda, as it caused a significant reduction in larval and pupal viability.
鳞翅目:夜蛾科植物叶片水提物生物学中的生物活性(J.E.Smith, 1797)
夜蛾(Spodoptera frugiperda,鳞翅目:夜蛾科)是玉米的主要害虫,因其导致玉米全年落叶,造成重大经济损失。其最常用的控制方法是化学,但滥用农药,除了由于产品的毒性对人类和环境造成不利影响外,还有利于抗性个体的发展,从而导致所讨论的昆虫难以控制。众所周知的植物有桃金娘(Murraya paniculata)、瓜果(Mikania glomerata)、奥卡塔诺甜瓜(Momordica charantia)和柠檬香蜂草(Melissa officinalis),它们已经证明了药理潜力,对昆虫具有驱避或毒性作用。因此,本研究的目的是通过在人工饲料中掺入提取物,在实验室中分析paniculata、M. glomerata、M.charantia和M. officinalis对frugiperda生物学参数的杀虫活性。结果表明,桃金娘叶提取物(Murraya paniculata)具有显著的杀虫活性,可显著降低其幼虫和蛹的存活率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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