| 世界性恶性杂草——紫茎泽兰研究的历史及现状 |
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| 引用本文： | 王尹, 李胜, 姜丽娜, 等. 取食紫茎泽兰对斜纹夜蛾生长发育及繁殖的影响[J]. 云南农业大学学报（自然科学）, 2018, 33(5): 836-841. DOI: 10.12101/j.issn.1004-390X(n).201708015 |
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| 作者姓名： | 王尹 李胜 姜丽娜 木霖 喜超 岳英 桂富荣 |
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| 作者单位： | 1.云南农业大学 植物保护学院，云南 昆明 650201;2.云南省农业环境保护监测站，云南 昆明 650201;3.云南省高原特色农业产业研究院，云南 昆明 650201 |
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| 基金项目： | 国家自然科学基金项目（31660546，31260450）；国家重点研发计划重点专项（2016YFC1202100）；云南省科技人才培养计划项目（2013HB072）和云南省农业环境保护监测站项目 |
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| 摘 要： | ttttt目的ttttt为了明确斜纹夜蛾取食紫茎泽兰对其生长发育和繁殖的影响。ttttttttttttt方法ttttt在室内分别利用紫茎泽兰和白菜叶片饲喂斜纹夜蛾幼虫，比较其生长发育、繁殖及存活差异。ttttttttttttt结果ttttt斜纹夜蛾可在紫茎泽兰上完成整个世代，但相较于其适宜寄主白菜，取食紫茎泽兰叶片导致其生长发育速率降低、历期延长、体重减轻，存活率、羽化率和繁殖力下降。取食紫茎泽兰的斜纹夜蛾各龄幼虫发育历期和蛹期与取食白菜叶片的斜纹夜蛾间差异显著(P<0.05)，取食紫茎泽兰的幼虫其历期比取食白菜的延长10.26 d；取食紫茎泽兰的斜纹夜蛾1～6龄幼虫的体重显著低于取食白菜的同龄幼虫(P<0.05)；蛹重比取食白菜的斜纹夜蛾蛹重低15.79% (P<0.05)；紫茎泽兰上的斜纹夜蛾幼虫的累计存活率和羽化率分别为40.61%和83.33%，分别比白菜上降低31.96%和11.67% (P<0.05)；同时，取食紫茎泽兰叶片可导致斜纹夜蛾成虫产卵期延长，单雌产卵量下降，并对其性比产生一定影响。tttttttttttttttttt结论ttttt斜纹夜蛾取食紫茎泽兰虽不利于自身的生长发育，但能够完成整个世代，说明紫茎泽兰可以作为斜纹夜蛾的寄主植物，斜纹夜蛾具有成为紫茎泽兰天敌的潜力。tttt
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| 关 键 词： | 斜纹夜蛾 紫茎泽兰 生长发育 繁殖力 |
| 收稿时间： | 2017-08-03 |
| 修稿时间： | 2017-12-18 |
Gall formation in crofton weed, Eupatorium adenophorum Spreng. (syn. Ageratina adenophora), by the Eupatorium gall fly Procecidochares utilis Stone (Diptera: Trypetidae) |
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| Yin WANG, Sheng LI, Lina JIANG, et al. Effects of Ageratina adenophora on the Growth and Adult Fecundity of Spodoptera Litura[J]. JOURNAL OF YUNNAN AGRICULTURAL UNIVERSITY（Natural Science）, 2018, 33(5): 836-841. DOI: 10.12101/j.issn.1004-390X(n).201708015 |
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| Authors: | Yin WANG Sheng LI Lina JIANG Lin MU Chao XI Ying YUE Furong GUI |
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| Affiliation: | 1.College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China;2.Yunnan Agri-environmental Protection and Monitoring Center, Kunming 650201, China;3.Yunnan Plateau Characteristic Agriculture Industry Research Institute，Kunming 650201, China |
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| Abstract: | tttttPurposetttttTo clarify the effects of Ageratina adenophora on the growth and fecundity of Spodoptera litura.ttttttttttttttttttMethodtttttThe study on the effect of host plant as the A. adenophora and Brassica rapa on the growth, fecundity and survival of S. litura were conducted in laboratoryttttttttttttttttttResulttttttS. litura can complete a whole generation fed with leaves of A. adenophora. But compared with the suitable host plant B. rapa, the growth rate of S. litura decreased, duration prolonged, weight loss, and survival rate, eclosion rate and fecundity decreased feeding on the leaves of A. adenophora. The larval and pupal duration of S. litura feeding on the leaves of the two host plants have significant difference (P<0.05), the larval duration ofS. litura was prolonged 10.26 days fed on A. adenophora. The weight of the 1st to 6th the instar larvae of S. litura feeding on A. adenophora were significantly decreased than those of the same instar of S. litura feeding on B. rapa, and pupal weight decreased by 15.79% (P<0.05) than feeding onB. rapa. The larval survival rate and eclosion rate of S. litura feeding on A. adenophora were 40.61% and 83.33%. It was decreased by 31.96% and 11.67% than feeding on B. rapa (P<0.05), respectively. Meanwhile, it caused a prolong for the oviposition duration of adultS. litura, significantly decreased the single female fecundity that feeding on A. adenophora, and decreased the sex ratio of S. litura population.ttttttttttttttttttConclusiontttttAlthough the leaves of A. adenophora were not suitable for the growth and development of S. litura, the insect may eventually adapt to it as a host plant and completed a whole generation. So S. litura has the potential to become one kind of generalist enemy of A. adenophora.ttttttttt |
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| Keywords: | Spodoptera litura Ageratina adenophora growth fecundity |
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