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首页> 外文期刊>Entomological Science >Larval survival, host plant preferences and developmental responses of the diamondback moth Plutella xylostella (Lepidoptera: Plutellidae) on wild brassicaceous species.
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Larval survival, host plant preferences and developmental responses of the diamondback moth Plutella xylostella (Lepidoptera: Plutellidae) on wild brassicaceous species.

机译：小菜蛾在小芸苔科物种上的幼虫存活，寄主植物偏好和小菜蛾小鳞蛾的发育响应。

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摘要

The diamondback moth Plutella xylostella (L.) (Lepidoptera: Plutellidae) is an important pest of cultivated brassicaceous crops worldwide. The host plant preferences, developmental biology and survival and longevity of P. xylostella are relatively well understood on commercial crop species; however, its relationship with brassicaceous weeds is poorly known. Sinapis arvensis L., Erysimum cheiranthoides L. and Capsella bursa-pastoris (L.) Medicus are among the most common brassicaceous weeds worldwide and can serve as important bridge hosts of P. xylostella. In this study, preference and performance of P. xylostella were compared on these weed species. In free-choice situations, females deposited 5.5 and 18.8 times more eggs on S. arvensis than on E. cheiranthoides and C. bursa-pastoris, respectively. Survival from neonate to pupa and from pupa to adult was highest on S. arvensis and E. cheiranthoides and lowest on C. bursa-pastoris. Development was fastest, foliage consumption was greatest, pupae and silk cocoons were heaviest, adult body masses and longevities were highest and forewings were largest for both females and males when reared as larvae on S. arvensis. Realized fecundity of new generation adults was highest for individuals reared on S. arvensis compared to those reared on E. cheiranthoides or C. bursa-pastoris. Relative growth rates of pupae and adults were highest on S. arvensis, suggesting that this plant species is a high-quality host for P. xylostella compared with other species tested. Potential impacts of these wild brassicaceous species on P. xylostella populations are discussed.Digital Object Identifier http://dx.doi.org/10.1111/j.1479-8298.2010.00413.x
机译：小菜蛾（Plutella xylostella）（L。）（鳞翅目：Plutellidae）是全世界栽培的十字花科作物的重要害虫。寄主植物的偏好，发育生物学以及 P的存活和寿命。小菜蛾在商业作物品种上相对了解。然而，它与芸苔属杂草的关系鲜为人知。 Sinapis arvensis L。， Erysimum cheiranthoides L.和 Capsella bursa-pastoris （L.）Medicus是全世界最常见的黄铜科杂草，可以充当 P的重要桥梁东道主。小菜蛾。在这项研究中， P的偏好和表现。在这些杂草种类上比较了小菜蛾。在自由选择的情况下，雌性在 S上沉积的卵多5.5和18.8倍。 arvensis 比 E。刺柏和 C。 bursa-pastoris 。在新生儿中，从新生儿到以及从on到成活的存活率最高。 arvensis 和 E。竹节虫，在 C时最低。法氏囊。发育最快的幼虫是雌虫和雄虫，它们发育最快，叶面消耗最大，p和丝茧最重，成年体重和寿命最高，前翅最大。欧文（Arvensis）。对于以 S饲养的个体，新生代的成年繁殖力最高。与在 E上饲养的arvensis 相比。刺柏或 C。法氏囊。 <上和成虫的相对增长率最高。 arvensis ，表明该植物物种是 P的高质量寄主。与其他测试物种相比。这些野生的黄铜科物种对 P的潜在影响。讨论了小菜蛾种群。数字对象标识符http://dx.doi.org/10.1111/j.1479-8298.2010.00413.x

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