密度对多异瓢虫幼虫生存的影响  

Effect of Density on Survival of Hippodamia variegata Larva

作　　者：雍艳萍 许冰燕 刘虹伶[2] 李杨 何恒果[1] 蒲德强[2] YONG Yanping;XU Bingyan;LIU Hongling;LI Yang;HE Hengguo;PU Deqiang(China West Normal University,Nanchong,Sichuan 637009;Institute of Plant Protection,Sichuan Academy of Agricultural Sciences,Chengdu 610066;College of Chemistry and Life Sciences,Chengdu Normal University,Chengdu 611130)

机构地区：[1]西华师范大学生命科学学院,四川南充637009 [2]四川省农业科学院植物保护研究所,成都610066 [3]成都师范学院化学与生命科学学院,成都611130

出　　处：《中国农学通报》2024年第27期115-120,共6页Chinese Agricultural Science Bulletin

基　　金：四川省自然科学基金“基于代谢组学的七星瓢虫生殖发育关键因子发掘及验证研究”(24NSFSC1783);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);四川省现代农业产业技术体系茶叶创新团队“茶叶病虫绿色防控技术”(sccxtd-2024-10)。

摘　　要：为明确饲养密度对多异瓢虫发育历期、成蛹率、成虫率及重量的影响,探索多异瓢虫的高效饲养技术,设置4个初龄幼虫饲养密度(A:100头/盒、B:200头/盒、C:300头/盒、D:400头/盒,饲养盒容积为1000 mL),观察统计多异瓢虫的各龄幼虫蜕皮、化蛹、羽化时间以及蛹和羽化成虫数量。研究结果表明,A、B、C、D各组多异瓢虫的幼虫和蛹的发育历期分别为(11.75±0.65)d、(12.06±0.77)d、(12.45±0.60)d和(12.70±0.21)d,化蛹数量分别是(85.25±4.87)头、(147.50±3.12)头、(193.75±21.40)头和(156.25±29.62)头,其中可收集蛹分别为(49.00±6.68)头、(74.25±12.06)头、(107.75±16.76)头和(103.75±15.78)头,羽化成虫数量分别是(75.25±6.73)头、(123.75±8.05)头、(160.25±27.22)头、(110.75±26.68)头,成虫体重分别是(7.39±0.13)mg/头、(7.32±0.29)mg/头、(7.29±0.20)mg/头、(6.56±0.12)mg/头,畸形成虫数量分别是(5.25±1.65)头、(12.75±4.33)头、(19.50±5.24)头、(10.50±3.90)头。随着饲养密度的增加,多异瓢虫发育历期会逐渐延长,化蛹、羽化及畸形数量逐渐增加,成蛹率、羽化率和成虫体重逐渐下降。综上所述,多异瓢虫初龄幼虫300头/盒的饲养密度,其化蛹和羽化成虫数量较多,体重正常,为较优饲养密度。In order to clarify the effects of feeding density on the development period,pupa rate,adult rate and weight of Hippodamia variegata,as well as to explore efficient feeding techniques for this species,four groups of early-stage larvae were subjected to different feeding densities(A:100 heads/box,B:200 heads/box,C:300 heads/box,D:400 heads/box,the volume of the breeding box is 1000 mL).The molting,pupa,eclosion time and the number of pupation and eclosion adults of each age of H.variegata were observed and counted.The results showed that the development duration of larvae and pupa of H.variegata in groups A,B,C,and D were(11.75±0.65)days,(12.06±0.77)days,(12.45±0.60)days,and(12.70±0.21)days,respectively.The number of pupation was(85.25±4.87),(147.50±3.12),(193.75±21.40)and(156.25±29.62),of which(49.00±6.68),(74.25±12.06),(107.75±16.76)and(103.75±15.78)pupae could be collected.The number of eclosion adults was(75.25±6.73)heads,(123.75±8.05)heads,(160.25±27.22)heads and(110.75±26.68)heads,respectively.The weight of adults was(7.39±0.13)mg/head,(7.32±0.29)mg/head,(7.29±0.20)mg/head and(6.56±0.12)mg/head,respectively,and the number of abnormal adults was(5.25±1.65)heads,(12.75±4.33)heads,(19.50±5.24)heads,(10.50±3.90)heads,respectively.With the increase of feeding density,the development period of H.variegata was gradually prolonged,the number of pupation,eclosion and deformity was gradually increased,and the pupation rate,eclosion rate and adult weight gradually decreased.In conclusion,the instar larvae of H.variegata had a feeding density of 300 heads/box,and the number of pupation and eclosion adults was large,and the weight was normal,which was the optimal feeding density.

关 键 词：蚜虫 多异瓢虫 饲养密度 生物防治 

分 类 号：S476.2[农业科学—农业昆虫与害虫防治]