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入侵害虫草地贪夜蛾取食七种食物的种群生命表
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引用本文:董松,卢增斌,李丽莉,朱军生,关秀敏,门兴元.入侵害虫草地贪夜蛾取食七种食物的种群生命表.植物保护学报,2022,49(2):612-619
DOI:10.13802/j.cnki.zwbhxb.2022.2020150
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作者单位E-mail
董松 山东省农业科学院植物保护研究所, 济南 250100  
卢增斌 山东省农业科学院玉米研究所, 小麦玉米国家工程实验室, 农业农村部黄淮海北部玉米生物学与遗传育种重点实验室, 济南 250100 luzengbin12345@163.com 
李丽莉 山东省农业科学院植物保护研究所, 济南 250100  
朱军生 山东省植物保护总站, 济南 250100  
关秀敏 山东省植物保护总站, 济南 250100  
门兴元 山东省农业科学院植物保护研究所, 济南 250100 menxy2000@hotmail.com 
中文摘要:为阐明入侵害虫草地贪夜蛾Spodoptera frugiperda对我国不同农作物的适应性,利用年龄-阶段两性种群生命表技术研究取食玉米粒以及玉米、花生、棉花、大豆、高粱和谷子叶片等7种不同食物对草地贪夜蛾生长发育与繁殖的影响。结果表明,不同食物显著影响草地贪夜蛾种群。整个成虫前期从长到短依次为取食棉花叶>取食大豆叶>取食高粱叶>取食花生叶>取食谷子叶>取食玉米叶>取食玉米粒,取食玉米粒要比取食棉花叶的时间缩短27.95 d。雌雄成虫寿命均以取食玉米粒和高粱叶的最长,以取食玉米叶的较短,且取食棉花叶的雄成虫寿命仅有3.00 d。产卵量以取食玉米粒的最多,为619.27粒,是取食其他食物的6.00倍~61.25倍。取食玉米叶的草地贪夜蛾初孵幼虫个体完成幼虫、蛹和成虫阶段的概率均较高,分别为95.38%、78.46%和78.46%,而取食棉花叶的最低,分别为37.29%、20.34%和20.34%。草地贪夜蛾取食玉米粒的净增值率、内禀增长率、周限增长率均最高,分别为105.59、0.12 d-1、1.13 d-1,平均世代周期最短,为36.91 d,而取食棉花叶的正好相反,取食其他5种食物的介于两者之间。总之,草地贪夜蛾在7种食物上均可以完成生活史,但是最喜好的寄主是玉米尤其是玉米粒,最不喜好的寄主是棉花叶和大豆叶。
中文关键词:草地贪夜蛾  种群生命表  寄主适应性
 
Life tables of the invasive insect pest fall armyworm, Spodoptera frugiperda feeding on seven crops
Author NameAffiliationE-mail
DONG Song Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan 250100, Shandong Province, China  
LU Zeng-bin Key Laboratory of Biology and Genetic Improvement of Maize in Northern Yellow-Huai River Plain, Ministry of Agriculture and Rural Affairs luzengbin12345@163.com 
LI Li-li Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan 250100, Shandong Province, China  
ZHU Jun-sheng Shandong Plant Protection Station, Jinan 250100, Shandong Province, China  
GUAN Xiu-min Shandong Plant Protection Station, Jinan 250100, Shandong Province, China  
MEN Xing-yuan Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan 250100, Shandong Province, China menxy2000@hotmail.com 
Abstract:To elucidate the adaptability of the invasive insect pest fall armyworm, Spodoptera frugiperda, to different crops in China, the growth, development and reproduction of S. frugiperda reared on maize grains and maize, peanut, cotton, soybean, sorghum, and millet leaves were assessed using the age-stage two-sex life table technique. The results showed that different foods significantly affected S. frugiperda populations. The order of pre-adult durations from longest to shortest was cotton leaves, soybean leaves, sorghum leaves, peanut leaves, millet leaves, maize leaves and maize grains, and it was 27.95 d shorter on maize grains than on cotton leaves. The longevity of male and female adults fed on maize grains and sorghum leaves was the longest, but shorter when fed on maize leaves. The longevity of male adult was only 3.00 d on cotton leaves. The female adults produced the most eggs(619.27 eggs) on maize grains, which was 6.00-61.25 times of those on other foods. The probability that the newly hatched larvae fed on maize leaves completed larval, pupal and adult stages was the highest, which was95.38%, 78.46% and 78.46%, respectively, while it was the shortest on cotton leaves, which was 37.29%, 20.34% and 20.34%, respectively. The net reproductive rate, intrinsic rate of increase and finite rate of increase of S. frugiperda fed on maize grains were the highest, with a shortest mean generation time, which were 105.59, 0.12 d-1, 1.13 d-1 and 36.91 d, respectively. In contrast, the results on cotton leaves were the opposite, while the results on the other five foods fell in between them. In conclusion, S. frugiperda could complete its life cycle on all tested foods, although it preferred maize crops, especially maize grains, while cotton leaves and soybean leaves were the least preferred.
keywords:Spodoptera frugiperda  life table  host adaptability
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