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首页> 外文期刊>Journal of Economic Entomology >Shifts in developmental diet breadth of Lymantria xylina (Lepidoptera : Lymantriidae)
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Shifts in developmental diet breadth of Lymantria xylina (Lepidoptera : Lymantriidae)

机译：西曼水母（鳞翅目：Lymantriidae）的发育饮食宽度的变化

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摘要

The moth Lymantria xylina Swinhoe (1903) (Lepidoptera: Lymantriidae) is a major defoliator of hardwood and fruit trees in Taiwan. Although the plants identified as host plants of L. xylina usually refer to plants used as food or as shelter, most of the host plant identifications have not considered the role of these hosts on larval development. This study investigated various instars feeding on different plants to assess the developmental diet breath of L. xylina. Forty-seven plant species, belonging to 25 families were used in feeding trials. Various bioassays, including first instar survival and long-term feeding trials, indicated the most suitable host plants for the different developmental stages. Results of the first instar survival trial indicated that first instars could survive only on 13 of the tested plant species. In addition, first instars could only successfully grow to pupa on seven of these 13 test plants species. To assess the developmental diet breath shifts of this moth, 38 plant species (excluding those nine plant species that the first instars did not feed upon) were fed to third and fifth instars in long-term feeding trials. Survival to pupa was noted on 12 and 13 test plant species for the third and fifth instars, respectively. In short, we found that the larvae performed differently when fed on various host plants and that the host plant range increased with the larval stage. Therefore, it is necessary to adjust the host plant range of this moth and to consider host plant breadth together with the developmental stages of caterpillars.
机译：飞蛾Lymantria xylina Swinhoe（1903）（鳞翅目：Lymantriidae）是台湾硬木和果树的主要落叶者。尽管被鉴定为木僵杆菌宿主植物的植物通常是指用作食物或庇护所的植物，但大多数宿主植物的鉴定并未考虑这些宿主对幼虫发育的作用。这项研究调查了以不同植物为食的各种幼虫，以评估木犀属植物的发育性饮食呼吸。饲养试验使用了25个科的47种植物。各种生物测定，包括初龄成虫存活和长期喂养试验，表明了最适合不同发育阶段的寄主植物。首次成虫存活试验的结果表明，第一只幼虫只能在13种受试植物中存活。此外，这13种测试植物中有7种的初生幼虫只能成功长出to。为了评估这种飞蛾的发育饮食呼吸变化，在长期饲喂试验中，将38种植物（不包括第一龄幼虫不以其为食的九种植物）饲喂给第三龄幼虫和第五龄幼虫。在第三和第五龄幼虫中，分别在12和13种受试植物中记录到to的存活。简而言之，我们发现当以各种寄主植物为食时，幼虫的表现有所不同，并且随着幼虫期的增加，寄主植物的范围也有所增加。因此，有必要调整该蛾的寄主植物范围，并考虑寄主植物的宽度以及毛虫的发育阶段。

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