| 草地贪夜蛾在玉米单作及玉米-大豆间作田的扩散规律 |
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| 引用本文： | 郭井菲#,韩海亮#,何康来,白树雄,张天涛,王振营.草地贪夜蛾在玉米单作及玉米-大豆间作田的扩散规律[J].植物保护,2022,48(1):110-115. |
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| 作者姓名： | 郭井菲# 韩海亮# 何康来 白树雄 张天涛 王振营 |
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| 作者单位： | 1. 中国农业科学院植物保护研究所, 植物病虫害生物学国家重点实验室, 北京 100193; 2. 浙江省农业科学院玉米与特色旱粮研究所, 东阳 322100 |
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| 基金项目： | 国家重点研发计划(2019YFD0300101);中国农业科学院重大科研项目(CAAS-ZDRW202007);财政部和农业农村部:国家现代农业产业技术体系建设专项（CARS-02） |
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| 摘 要： | 草地贪夜蛾Spodoptera frugiperda (J.E.Smith)是新入侵我国的一种重大致灾性害虫,对我国玉米生产构成严重威胁.本研究于2019年和2020年在田间调查研究了草地贪夜蛾在玉米单作以及玉米-大豆间作模式下的田间扩散规律.结果 表明:草地贪夜蛾幼虫在2019年的36 m2和2020年的64 m2小...
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| 关 键 词： | 草地贪夜蛾 玉米 大豆 间作 田间扩散 |
| 收稿时间： | 2020/11/13 0:00:00 |
| 修稿时间： | 2020/12/15 0:00:00 |
Dispersal of Spodoptera frugiperda in maize monoculture and intercropped maize soybean fields |
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| GUO Jingfei#,HAN Hailiang#,HE Kanglai,BAI Shuxiong,ZHANG Tiantao,WANG Zhenying.Dispersal of Spodoptera frugiperda in maize monoculture and intercropped maize soybean fields[J].Plant Protection,2022,48(1):110-115. |
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| Authors: | GUO Jingfei# HAN Hailiang# HE Kanglai BAI Shuxiong ZHANG Tiantao WANG Zhenying |
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| Institution: | 1. State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; 2. Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Dongyang 322100, China |
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| Abstract: | The fall armyworm,Spodoptera frugiperda(J.E.Smith),is a new invasive insect pest that can bring great hazard to the maize production in China.In this study,the dispersal behavior of S.frugiperda in maize monoculture and maize-soybean intercropping fields were observed in 2019 and 2020.The results showed that the larval survival rates were 43.4%and 60.3%,the injury rates of maize plants were 24.3%and 21.1%,and the dispersal radii were 336.4 cm and 611.3 cm in the plots of 36 m2 and 64 m2 in 2019 and 2020,respectively.No significant directionality in any dispersal direction was observed,showing a random diffusion trend,and the maximum dispersal distance in the test of both years reached the plot edge.In addition,the total injury rate of maize plants,injury level and dispersal radii under maize-soybean intercropping modes in 2∶2(I22)and 2∶4(I24)ratios were not significantly different from those under maize monoculture mode,indicating that the maize-soybean intercropping modes of I22 and I24could not hinder the dispersal of S.frugiperda in maize.The larval survival rate on maize plants under maize-soybean intercropping modes in 2∶2(I22)and 2∶4(I24)ratios were 24.67%and 23.67%,respectively,which were significantly lower than that of maize monoculture mode,indicating that maize-soybean intercropping modes might inhibit the population development.Our results provide a reference for the monitoring and integrated control of S.frugiperda. |
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| Keywords: | Spodoptera frugiperda maize soybean intercropping dispersal |
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