| 玉米及玉米田3种杂草对草地贪夜蛾生长发育和产卵的影响 |
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| 引用本文： | 吴道慧#,李宜儒#,王思勤,陈国华,齐国君,陈婷,柳青,张晓明.玉米及玉米田3种杂草对草地贪夜蛾生长发育和产卵的影响[J].植物保护,2021,47(2):116-121. |
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| 作者姓名： | 吴道慧# 李宜儒# 王思勤 陈国华 齐国君 陈婷 柳青 张晓明 |
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| 作者单位： | 1. 云南农业大学植物保护学院, 云南生物资源保护与利用国家重点试验室, 昆明650201; 2. 广东省农业科学院植物保护研究所, 广东省植物保护新技术重点试验室, 广州510640; 3. 保山学院资源环境学院, 云南省高校滇西昆虫资源保护与利用重点实验室, 保山678000 |
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| 基金项目： | 云南省高校滇西昆虫资源保护与利用重点实验室建设项目（云教发［2019］57号）；云南省高层人才培养支持计划“青年拔尖人才”专项（云人社通［2020］15009号）；第十七批昆明市中青年学术和技术带头人后备人选项目（昆政发［2019］43号）；广东省现代农业产业共性关键技术研发创新团队建设项目（2020KJ134） |
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| 摘 要： | 为研究草地贪夜蛾在玉米田周围杂草上的生长发育情况,对草地贪夜蛾田间防控提供参考,本研究在(28±1)℃,相对湿度(70±5)%,光周期L∥D=16 h∥8 h的人工气候箱条件下,选用玉米Zea mays及玉米田常见的主要杂草扁穗雀麦Bromus catharticus、白花三叶草Trifolium repens、三叶鬼针草Bidens pilosa,探究了草地贪夜蛾在这4种植物上不同虫态的发育历期、蛹重以及卵的孵化率、1~3龄幼虫对4种植物的选择性等。结果表明:草地贪夜蛾在4种植物上均可完成整个世代的生长发育。其中三叶鬼针草处理的草地贪夜蛾幼虫期和蛹期最长,分别为15.97 d和8.33 d;三叶鬼针草处理下草地贪夜蛾蛹重为107.90 mg,显著低于其他3种植物处理的蛹重(P<0.05),玉米、白花三叶草、扁穗雀麦处理的蛹重分别为243.50、239.97、235.80 mg;草地贪夜蛾在4种植物上产卵量具有显著差异(P<0.05),白花三叶草上最高,为2302粒,三叶鬼针草上最低,为827粒;草地贪夜蛾1~3龄幼虫在玉米、扁穗雀麦和白花三叶草上的发育适合度高于三叶鬼针草。草地贪夜蛾在玉米田周围常见3种杂草上可完成生长发育,在防治草地贪夜蛾时,玉米收获后应尽快清除田边杂草,以减少第二季或者次年玉米上的种群基数。
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| 关 键 词： | 草地贪夜蛾 玉米 扁穗雀麦 白花三叶草 三叶鬼针草 发育历期 蛹重 适合度 |
| 收稿时间： | 2020/8/1 0:00:00 |
| 修稿时间： | 2020/8/28 0:00:00 |
Effects of Zea mays and three weeds around Z. mays fields on the growth, development and oviposition of Spodoptera frugiperda |
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| WU Daohui#,LI Yiru#,WANG Siqin,CHEN Guohu,QI Guojun,CHEN Ting,LIU Qing,ZHANG Xiaoming.Effects of Zea mays and three weeds around Z. mays fields on the growth, development and oviposition of Spodoptera frugiperda[J].Plant Protection,2021,47(2):116-121. |
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| Authors: | WU Daohui# LI Yiru# WANG Siqin CHEN Guohu QI Guojun CHEN Ting LIU Qing ZHANG Xiaoming |
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| Institution: | 1. College of Plant Protection, Yunnan Agricultural University, National Key Laboratory for Conservation and Utilization of Biological Resources in Yunnan, Kunming650201, China; 2. Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Research Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Guangzhou510640, China; 3. School of Resources and Environment, Baoshan University, Key Laboratory of Conservation and Utilization of Insect Resources in Western Yunnan, Baoshan678000, China |
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| Abstract: | The growth and development of Spodoptera frugiperda on weeds around maize fields were investigated to provide a reference for prevention and control of S.frugiperda in the field.S.frugiperda was reared on four different plant species including Zea mays and other three main plants commonly found around Z.mays fields,i.e.,Bromus catharticus,Bidens pilosa and Trifolium repens under the conditions of(28±1)℃,relative humidity(70±5)%,photoperiod L∥D=16 h∥8 h;meanwhile,the developmental periods of insect states,pupa weight,hatching rate of eggs on four different plants and the selectivity of 1st-3rd instar larvae of S.frugiperda on four different plants was studied under these conditions.The results showed that S.frugiperda could finish its life cycle on these four plants tested.S.frugiperda had the longest developmental duration of larval and pupal stages on B.pilosa,which were 15.97 d and 8.33 d,respectively;the pupal weight of S.frugiperda on B.pilosa was 107.90 mg,significantly lower than on the other three plants species(P<0.05);the pupal weights of S.frugiperda on other three plants were 243.50 mg on Z.mays,235.80 mg on B.catharticus,and 239.97 mg on T.repens.The numbers of S.frugiperda eggs on different plants were significantly different(P<0.05):there were the most eggs on T.repens(2302)and the least on B.pilosa(827).The fitness of 1st-3rd instar larvae on Z.mays,B.catharticus and T.repens was higher than that on B.pilosa.S.frugiperda could finish its life cycle on these three main weed species around maize fields.It is necessary to eliminate the edge weeds after harvest to reduce the population size of S.frugiperda in the second planting time or the next year. |
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| Keywords: | Spodoptera frugiperda Zea mays Bromus catharticus Trifolium repens Bidens pilosa developmental period pupa weight fitness |
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