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中国农学通报

中国农学通报 ›› 2025, Vol. 41 ›› Issue (8): 105-110.doi: 10.11924/j.issn.1000-6850.casb2024-0530

• 植物保护 • 上一篇    下一篇

密度对十斑大瓢虫不同虫态生存的影响

梁辉1(), 邓全1, 刘国1, 陈河竹2, 马鹏1, 李斌3, 刘东阳1, 余佳敏3, 江连强1, 蒲德强2()   

  1. 1 四川省烟草公司凉山州公司，四川西昌 615000
    2 四川省农业科学院植物保护研究所，成都 610066
    3 四川省烟草公司，成都 610041
  • 收稿日期:2024-08-15 修回日期:2024-12-02 出版日期:2025-03-15 发布日期:2025-03-14
  • 通讯作者:
    蒲德强，1980年出生，四川叙永人，研究员，博士，主要从事烟草害虫生物防治技术方面的研究。通信地址：610066 四川省成都市锦江区静居寺路20号 四川省农业科学院植物保护研究所，E-mail：。
  • 作者简介:

    梁辉，男，1983年出生，四川盐亭人，高级政工师，硕士研究生，主要从事烟叶生产技术方面的研究。通信地址：615000 四川省西昌市三岔口东路478号 四川省烟草公司凉山州公司，E-mail：。

  • 基金资助:
    四川省烟草公司科技项目“天敌昆虫防治媒介害虫技术研究与应用”(SCYC202212)

Effect of Density on the Survival of Megalocaria dilatata in Different Stages

LIANG Hui1(), DENG Quan1, LIU Guo1, CHEN Hezhu2, MA Peng1, LI Bin3, LIU Dongyang1, YU Jiamin3, JIANG Lianqiang1, PU Deqiang2()   

  1. 1 Liangshan Municipal Tobacco Company, Xichang Sichuan 615000
    2 Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu 610066
    3 Sichuan Tobacco Company, Chengdu 610041
  • Received:2024-08-15 Revised:2024-12-02 Published:2025-03-15 Online:2025-03-14

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摘要：

为了明确不同容积-密度组合饲养对十斑大瓢虫各虫态发育历期、存活率及蛹和成虫重量的影响，在25℃、相对湿度60%~80%、光照周期10 L:14 D条件下，通过组合3种容器(A：1000 mL；B：1500 mL；C：2000 mL)和3种密度（15、20、25头），饲喂、记录、分析十斑大瓢虫各虫态发育历期、存活率以及蛹和成虫重量。研究结果表明，十斑大瓢虫的存活曲线随龄期增长呈“S”型下降趋势，各处理发育历期从长到短依次为C3>C1>A1=C2>A3>A2=B2>B1>B3，B组的平均发育时间最短。各处理1—2龄幼虫期和蛹期存活率较低，B2处理的成蛹率为76.67%，成虫率为73.33%，高于其他处理。各处理蛹期的重量从高到低依次为A1>C2>C3>B1>A3>C1>B3>A2>B2，成虫的重量从高到低依次为B1>B3>B2>C2>C3>C1>A2>A3>A1。综上所述，十斑大瓢虫较优饲养容器应选择B2处理，即1500 mL饲养密度为20头/盒最佳。本研究为十斑大瓢虫幼虫的高效繁育提供理论基础。

关键词: 蚜虫, 十斑大瓢虫, 幼虫, 密度, 生物防治, 容积-密度组合, 发育历期, 存活率, 重量

Abstract:

In order to clarify the effects of rearing with different volume-density combinations on the developmental duration, survival rate, and weight of pupae and adults of the ten-spotted ladybird beetles, under conditions of 25℃, relative humidity of 60% to 80%, and a light cycle of 10 L:14 D, three containers (A: 1000 mL; B: 1500 mL; C: 2000 mL) and 3 densities (15 heads; 20 heads; 25 heads), feeding, recording and analyzing the development period, survival rate, pupal and adult weight of each insect of M. dilatata. The results showed that the survival curve of M. dilatata showed an "S" downward trend with the growth of instar, and the development duration of each treatment was C3>C1>A1=C2>A3>A2=B2>B1>B3, and the average development time of group B was the shortest. The survival rate of the 1st and 2nd instar larval stage and pupal stage of each treatment was lower, and the pupation rate and adult rate of B2 treatment were 76.67% and 73.33%, which were higher than those of the other treatments. The weight of each treatment at pupal stage from high to low was A1>C2>C3>B1>A3>C1>B3>A2>B2, and the weight of adults from high to low was B1>B3>B2>C2>C3>C1>A2>A3>A1. In summary, the best feeding container for M. dilatata should be B2 treatment, that is, 1500 mL feeding density of 20 heads/box is the best. This study provides a theoretical basis for the efficient breeding of larvae of M. dilatata.

Key words: aphid, Megalocaria dilatata, larva, density, biological control, volume-density combinations, developmental duration, survival rate, weight