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首页> 外文期刊>Neotropical Entomology >[Characterization of the damage of Spodoptera eridania (Cramer) and Spodoptera cosmioides (Walker) (Lepidoptera: Noctuidae) to structures of cotton plants]. [Portuguese]Original Title Caracterizacao dos danos de Spodoptera eridania (Cramer) e Spodoptera cosmioides (Walker) (Lepidoptera: Noctuidae) a estruturas de algodoeiro.
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[Characterization of the damage of Spodoptera eridania (Cramer) and Spodoptera cosmioides (Walker) (Lepidoptera: Noctuidae) to structures of cotton plants]. [Portuguese]Original Title Caracterizacao dos danos de Spodoptera eridania (Cramer) e Spodoptera cosmioides (Walker) (Lepidoptera: Noctuidae) a estruturas de algodoeiro.

机译：篇名[斜纹夜蛾（Cramer）和夜蛾（Spodoptera cosmioides）（Walker）（鳞翅目：夜蛾科）对棉株结构的危害] [葡萄牙文]原始名称拟南芥（Cramer）和拟夜蛾（Walker）（鳞翅目：夜蛾科）和阿尔戈多埃罗（estruturas de algodoeiro）。

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摘要

The cotton plant, Gossypium hirsutum, hosts various pests that damage different structures. Among these pests, Spodoptera cosmioides (Walker) and Spodoptera eridania (Cramer) (Lepidoptera: Noctuidae) are considered important. The objectives of this study were to characterize and to quantify the potential damage of S. eridania and S. cosmioides feeding on different structures of cotton plants. For this purpose, newly-hatched larvae were reared on the following plant parts: leaf and flower bud; leaf and boll; flower bud or boll; and leaf, flower bud and boll. The survival of S. cosmioides and S. eridania was greater than 80% and 70% for larvae fed on cotton plant parts offered separately or together, respectively. One larva of S. eridania damaged 1.7 flower buds, but did not damage bolls, while one larva of S. cosmioides damaged 5.2 flower buds and 3.0 cotton bolls. Spodoptera eridania and S. cosmioides can be considered species with potential to cause economic damage to cotton plants because they can occur throughout cotton developmental stages causing defoliation and losses of reproductive structures. Therefore, the results validate field observations that these two species of Spodoptera are potential pests for cotton.
机译：棉花植物陆地棉（Gossypium hirsutum）拥有各种害虫，它们会破坏不同的结构。在这些害虫中，认为夜蛾（Spodoptera cosmioides）（沃克）和大夜蛾（Spodoptera eridania）（克拉默）（鳞翅目：夜蛾科）很重要。这项研究的目的是表征和定量以不同结构的棉花为食的大麦链球菌和大麦链球菌的潜在危害。为此，将新孵化的幼虫饲养在以下植物部位：叶和花芽;叶铃花蕾或铃和叶子，花蕾和铃。用分别或一起提供的棉株部分饲喂的幼虫，S。cosmioides和S. eridania的存活率大于80％和70％。一只艾美耳球虫幼虫破坏了1.7个花蕾，但没有破坏铃兰，而一只艾美球虫幼虫破坏了5.2个花蕾和3.0个棉铃。斜纹夜蛾和宇宙链球菌可被认为具有对棉株造成经济损害的潜力，因为它们可发生在整个棉花发育阶段，从而导致脱叶和生殖结构丧失。因此，结果证实了实地观察到的这两种斜纹夜蛾是棉花的潜在害虫。

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