| 张云慧1, 张 智2, 刘 杰3, 姜玉英3, 李祥瑞1, 巴吐西1, 陈智勇1, 林培炯1, 黄红娟1*.草地贪夜蛾对田间禾本科杂草的产卵和取食选择性[J].植物保护,2021,47(1):117-122. |
| 草地贪夜蛾对田间禾本科杂草的产卵和取食选择性 |
| Oviposition and feeding preference of Spodoptera frugiperda to gramineous weeds |
| 投稿时间：2020-07-07 修订日期：2020-07-27 |
| DOI：DOI:10.16688/j.zwbh.2020359 |
| 中文关键词: 草地贪夜蛾 禾本科杂草 嗜食寄主 产卵选择 取食选择 |
| 英文关键词:Spodoptera frugiperda grass weeds preferable host oviposition preference feeding preference |
| 基金项目:国家重点研发计划(2018YFD0200500, 2019YFD0300102); 国家现代农业产业技术体系建设专项(CARS-03); 国家自然科学基金(31972260); 中央级公益性科研院所基本科研业务费专项(Y2019YJ06); 中国农业科学院重大任务联合攻关(CAAS-ZDRW202007) |
| 作者 | 单位 | E-mail | | 张云慧1, 张 智2, 刘 杰3, 姜玉英3, 李祥瑞1, 巴吐西1, 陈智勇1, 林培炯1, 黄红娟1* | 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. 北京市植物保护站, 北京 100029
3. 全国农业技术推广服务中心, 北京 100125 | E-mail:hjhuang@ippcaas.cn |
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| 中文摘要: |
| 明确草地贪夜蛾的寄主偏好性有利于更好地掌握其田间种群发生动态, 指导农业防控?本文分别以玉米?小麦及其田间常见的禾本科杂草为测试对象, 研究草地贪夜蛾成虫?幼虫对嗜食寄主及禾本科杂草的选择性和初孵幼虫取食不同植物的存活率?结果表明:草地贪夜蛾成虫产卵具有明显的选择性, 在玉米上日均产卵量为(315.59±49.87)粒, 占在所有供试植物上总产卵数量的71.17%, 显著高于其在玉米田禾本科杂草上的日均产卵量, 其在玉米田不同种类杂草上的产卵量差异不显著?草地贪夜蛾成虫在小麦上的日均产卵量为(243.40±18.24)粒, 占所有供试植物上总产卵数量的46.98%, 且显著高于在麦田禾本科杂草上的产卵量?1~2龄幼虫对玉米和马唐的取食选择率无显著差异, 但显著高于玉米田其他杂草; 1~3龄幼虫对小麦和节节麦的取食选择率无显著差异, 但显著高于麦田其他杂草; 对供试杂草的取食选择率随龄期增高逐渐降低, 对玉米和小麦的选择性随龄期增加而增强; 草地贪夜蛾1龄幼虫在玉米及玉米田禾本科杂草上的存活率无显著差异, 最低为95.89%; 在小麦及麦田禾本科杂草上, 以雀麦上的成活率最低, 为85.22%, 显著低于小麦和其他禾本科杂草? |
| 英文摘要: |
| Study the host preference of Spodoptera frugiperda to different host plants is helpful to understand its population dynamics and make control strategy in the field. In this paper, maize, wheat and their gramineous weeds were used to study the selectivity of the adults and larvae of S.frugiperda to preferable hosts and weeds, and the survival rate of the newly hatched larvae feeding on different plants. The results showed that the average number of eggs laid per day by the female S. frugiperda on maize was 315.59±49.87, accounting for 71.17% of the total number of eggs laid on all plants, which was significantly higher than those on other weeds and but no significant difference among different weeds. The average number of eggs laid on wheat was 243.40±18.24, which was significantly higher than those on other weeds, accounting for 46.98% of the total number of eggs laid on all plants. There was no significant difference in the feeding selectivity of 1st and 2nd instar larvae between maize and Digitaria sanguinalis but significantly higher than that to other weeds, and there was no significantly difference in the feeding selectivity of the 1st to 3rd instar larvae to wheat and Aegilops tauschii but significantly higher than that to other weeds. With the increase of instars, the feeding preference to different kinds of weeds gradually decreased, and the preference to maize and wheat increased. There was no significant difference in the survival rates of the 1st instar larvae on maize and weeds, and the lowest was 95.89%. The larvae feeding on Bromus japonicus had the lowest survival rate of 85.22%, which was significantly lower than those on wheat and other weeds. |
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