首页> 外文期刊>Journal of Economic Entomology >Linking Life Table and Predation Rate for Biological Control: A Comparative Study of Eocanthecona furcellata (Hemiptera: Pentatomidae) Fed on Spodoptera litura (Lepidoptera: Noctuidae) and Plutella xylostella (Lepidoptera: Plutellidae)
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Linking Life Table and Predation Rate for Biological Control: A Comparative Study of Eocanthecona furcellata (Hemiptera: Pentatomidae) Fed on Spodoptera litura (Lepidoptera: Noctuidae) and Plutella xylostella (Lepidoptera: Plutellidae)

机译:链接生命表和捕食率以进行生物防治:在斜纹夜蛾(鳞翅目:夜蛾科)和小菜蛾(小鳞翅目:小菜蛾)上进食的长尾E(半翅目:翅目科)的比较研究

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摘要

To better understand the predator-prey relationship and to compare predation rates, we studied the life table and predation rate of the predator Eocanthecona furcellata Wolff (Hemiptera: Pentatomidae) when reared on two major crucifer pests, Spodoptera litura (F.) (Lepidoptera: Noctuidae) and Plutella xylostella L. (Lepidoptera: Plutellidae). The net reproductive rate, intrinsic rate of increase, finite rate, and net predation rates of E. furcellata reared on P. xylostella were 292.4 offspring, 0.1389 d(-1), 1.1490 d-1, and 644.1 third instars of P. xylostella, respectively. These values are significantly higher than those reared on S. litura, i.e., 272.3 offspring, 0.1220 d(-1), 1.1298 d(-1), and 863.1 third instars of S. litura. To evaluate the predation potential of E. furcellata fed on P. xylostella and S. litura, we combined both the growth rate and predation rate to calculate the finite predation rate (omega); our results showed that E. furcellata is an effective predator of both S. litura (omega = 1.6029) and P. xylostella (omega = 1.4277).
机译:为了更好地了解食肉动物与猎物之间的关系并比较食肉动物的捕食率,我们研究了捕食食虫的Eocanthecona furcellata Wolff(半翅目:Pentatomidae)在两种主要十字花科害虫Spodoptera litura(F。)(鳞翅目: Noctuidae)和小菜蛾Plutella xylostella L.(鳞翅目:Plutellidae)。在小菜蛾上饲养的小肠埃希氏菌的净繁殖率,内在增长率,有限率和捕食率分别为292.4个后代,0.1389 d(-1),1.1490 d-1和644.1龄的小菜蛾, 分别。这些值显着高于在斜纹夜蛾上培育的值,即272.3后代,0.1220 d(-1),1.1298 d(-1)和863.1斜纹夜蛾三龄。为了评估以小菜蛾和斜纹夜蛾为食的大肠埃希菌的捕食潜力,我们将生长率和捕食率结合起来计算有限捕食率(ω)。我们的结果表明,大肠埃希菌是斜纹夜蛾(欧米茄= 1.6029)和小菜蛾(欧米茄= 1.4277)的有效捕食者。

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