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不同光源对草地贪夜蛾生殖行为的影响

引用本文：田太安,刘健锋,于晓飞,董祥立,李治模,杨茂发.不同光源对草地贪夜蛾生殖行为的影响.植物保护学报,2020,47(4):822-830

DOI：10.13802/j.cnki.zwbhxb.2020.2020819

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作者	单位	E-mail
田太安	贵州大学昆虫研究所, 贵州省山地农业病虫害重点实验室, 贵阳 550025
刘健锋	贵州大学昆虫研究所, 贵州省山地农业病虫害重点实验室, 贵阳 550025
于晓飞	贵州大学烟草学院, 贵阳 550025
董祥立	贵州省烟草公司遵义市公司凤冈县分公司, 遵义 564200
李治模	贵州省烟草公司遵义市公司凤冈县分公司, 遵义 564200
杨茂发	贵州大学昆虫研究所, 贵州省山地农业病虫害重点实验室, 贵阳 550025 贵州大学烟草学院, 贵阳 550025	gdgdly@126.com

中文摘要:为评价杀虫灯对草地贪夜蛾Spodoptera frugiperda的非直接诱杀效应，在室内观察黑暗、紫色（365~375 nm）、蓝色（460~475 nm）和绿色（490~505 nm）弱光对草地贪夜蛾生殖行为的影响，分析不同光源处理对草地贪夜蛾求偶、交配和产卵行为的影响。结果表明，在第1个暗期内，紫色光源会显著延迟草地贪夜蛾雌成虫求偶开始时间和交配开始时间，而在之后的3个暗期中，紫色、蓝色和绿色光源下草地贪夜蛾雌成虫的交配高峰期较黑暗处理提前，产卵节律没有明显差异；在第1个暗期内，紫色、蓝色和绿色光源下草地贪夜蛾雌成虫的交配时间差异不显著，但在4个连续暗期下，黑暗处理下草地贪夜蛾雌成虫的累计交配时间显著高于其它3种光源处理；黑暗、蓝色和绿色光源下草地贪夜蛾雌成虫的初次交配时间主要集中在第1个暗期，分别占50.00%、50.00%和63.33%，而紫色光源下雌成虫初次交配时间主要集中在第2个暗期，占47.67%；黑暗、紫色、蓝色和绿色光源下草地贪夜蛾雌成虫的交配次数最高分别为5、3、2和3次，交配次数均以1次最多，显著多于其它交配次数；黑暗处理下，各暗期草地贪夜蛾雌成虫交配率之间差异不明显，而在蓝色、紫色和绿色光源下，各暗期之间存在显著差异。表明紫色、蓝色和绿色光源干扰能显著影响草地贪夜蛾的交配行为，其中紫光影响最明显。

中文关键词:草地贪夜蛾生殖行为光源干扰

Effects of different light resources on the reproductive behavior of fall armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae)

Author Name	Affiliation	E-mail
TIAN Tai'an	Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Regions, Institute of Entomology, Guizhou University, Guiyang 550025, Guizhou Province, China
LIU Jianfeng	Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Regions, Institute of Entomology, Guizhou University, Guiyang 550025, Guizhou Province, China
YU Xiaofei	College of Tobacco Science, Guizhou University, Guiyang 550025, Guizhou Province, China
DONG Xiangli	Fenggang Branch of Guizhou Tobacco Company, Zunyi 564200, Guizhou Province, China
LI Zhimo	Fenggang Branch of Guizhou Tobacco Company, Zunyi 564200, Guizhou Province, China
YANG Maofa	Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Regions, Institute of Entomology, Guizhou University, Guiyang 550025, Guizhou Province, China College of Tobacco Science, Guizhou University, Guiyang 550025, Guizhou Province, China	gdgdly@126.com

Abstract:In order to evaluate the efficacy of insecticidal lamps on fall armyworm Spodoptera frugiperda, the effects of dark, purple (365-375 nm), blue (460-475 nm) and green (490-505 nm) weak light (5 lx) on the courtship, mating and oviposition behaviors of S. frugiperda were observed in the laboratory. The results showed that during the scotophase 1 (2-day-old adult), calling start time and mating start time of S. frugiperda were significantly later than the other three treatments under the purple. In the following three scotophase, the mating peak period of purple, blue and green light sources were earlier than the dark treatment, and there was no obvious different in the ovulating rhythm. In the scotophase 1, the mating time of S. frugiperda for female adults under the three light resources was not significant. But under the condition of four consecutive scotophase the cumulative mating time of S. frugiperda female audlts under dark treatment was significantly higher than those of purple, blue and green. The first mating time of female adults under dark, blue and green light resources were mainly concentrated in scotophase 1, accounting for 50.00%, 50.00% and 63.33%, respectively, while under weak purple light the first mating time of female adults was mainly concentrated in scotophase 2 (3-day-old adults, 47.67%). The distribution of the cumulative number of mating of S. frugiperda under the dark, purple, blue and green light were the highest in one time, which was significantly higher than those of other mating times. The highest number of mating for female adults was 5, 3, 2 and 3, respectively. Between the scotophase, the mating rate of S. frugiperda under the dark treatment was not significant, but the mating rates under purple light resources, blue light resources and green light sources were significantly different. The mating rate of S. frugiperda female adults was not significant under 4 scotophase. The results indicated that different light resources interference can significantly affect the reproductive behavior of S. frugiperda.

keywords:Spodoptera frugiperda reproductive behavior light resource interference

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