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中国农学通报 ›› 2024, Vol. 40 ›› Issue (5): 105-109.doi: 10.11924/j.issn.1000-6850.casb2023-0167

• 植物保护 • 上一篇    下一篇

十斑大瓢虫对豆蚜的捕食特性研究

魏莲1(), 刘虹伶1, 伍兴隆1, 陈河竹1, 彭应力1, 肖科军1, 蔡鹏2, 房超2, 李跃建2, 蒲德强1()   

  1. 1 四川省农业科学院植物保护研究所,成都 610066
    2 四川省农业科学院园艺研究所/蔬菜种质与品种创新四川省重点实验室,成都 610066
  • 收稿日期:2023-02-28 修回日期:2023-06-29 出版日期:2024-02-01 发布日期:2024-02-01
  • 通讯作者:
    蒲德强,男,1980年出生,四川叙永人,副研究员,博士,主要从事经济作物害虫防治研究工作。通信地址:610066 四川省成都市锦江区静居寺路20号,E-mail:
  • 作者简介:

    魏莲,女,2001年出生,重庆涪陵人,助理农艺师,主要从事农业昆虫与害虫综合防治研究工作。通信地址:610066 四川省成都市锦江区静居寺路20号,E-mail:

  • 基金资助:
    四川省科研条件平台建设项目“蔬菜害虫生物防治技术研究”; 四川省现代农业产业技术体系茶叶创新团队“茶园病虫绿色防控技术研究与应用”(sccxtd-2020-10); 四川省烟草公司重点科技项目“天敌昆虫防治媒介害虫技术研究与应用”(SCYC202212)

Study on the Predation Characteristics of Megalocaria dilatata on Aphid

WEI Lian1(), LIU Hongling1, WU Xinglong1, CHEN Hezhu1, PENG Yingli1, XIAO Kejun1, CAI Peng2, FANG Chao2, LI Yuejian2, PU Deqiang1()   

  1. 1 Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu 610066
    2 Horticultural Institute, Sichuan Academy of Agricultural Sciences/ Vegetable Germplasm Innovation and Variety Improvement Key Laboratory of Sichuan Province, Chengdu 610066
  • Received:2023-02-28 Revised:2023-06-29 Published-:2024-02-01 Online:2024-02-01

摘要:

为明确十斑大瓢虫对豆蚜的捕食能力和捕食规律,将野外采集的十斑大瓢虫置于室内饲养2代,再测定其各龄幼虫及雌、雄成虫对豆蚜的捕食量,以倒数法拟合Holling II圆盘方程,明确了十斑大瓢虫对豆蚜的捕食特性。研究结果表明,十斑大瓢虫对豆蚜的捕食量随着虫龄增加而逐渐增加,当N→∞时,十斑大瓢虫的1~4龄幼虫以及雌、雄成虫在1 d内对豆蚜的最大捕食量分别为30.1628、158.7003、556.3928、988.1128、841.0084、589.4011头。十斑大瓢虫幼虫对豆蚜的捕食量与日龄的拟合方程为y=3.9123x2.2092(R2=0.8093),随着日龄的增加捕食数量呈指数关系逐渐增加。雌、雄成虫对豆蚜的捕食量与日龄的拟合方程分别为y=0.9453x2-28.274x+827.44(R2=0.456)和y=0.8762x2-31.511x+635.38(R²=0.7188),随着日龄期的增加捕食数量逐渐降低。

关键词: 十斑大瓢虫, 豆蚜, 捕食量, 天敌昆虫, 生物防治

Abstract:

In order to clarify the predation ability and predation regularity of Megalocaria dilatata on bean aphid, the M. dilatata collected in the wild was raised indoors for 2 generations, and then predation of each instar larva, female and male adult was measured. The Holling II disk equation was fitted by the reciprocal method, and the predation characteristics of the M. dilatata were determined. The results showed that the predation amount of M. dilatata increased with the age of M. dilatata. When N→∞, the maximum predation of the 1st to 4th instars larvae, female and male adults on the bean aphid within 1 day were 30.1628, 158.7003, 556.3928, 988.1128, 841.0084 and 589.4011, respectively. The fitting equation between the predation amount and day age was y=3.9123x2.2092(R2=0.8093), and the predation amount increased exponentially with the increase of day age. The fitting equations of predation and day age of female and male adults were y=0.9453x2-28.274x+827.44(R2=0.456) and y=0.8762x2-31.511x+635.38 (R2=0.7188), respectively, and predation amount of female and male adults decreased gradually with the increase of day age.

Key words: Megalocaria dilatata, bean aphid, predation, natural enemy, biological control