基于2种中间寄主的稻螟赤眼蜂生命表编制与分析  

Trichogramma japonicum Based on 2 Kinds of Intermediate Hosts:Life Table Producing and Analysis

作　　者：刘兴龙[1] 邵天玉[1] 王克勤[1] Liu Xinglong;Shao Tianyu;Wang Keqin(Institute of Plant Protection, Heilongjiang Academy of Agricultural Sciences, Harbin 150086)

机构地区：[1]黑龙江省农业科学院植物保护研究所,哈尔滨150086

出　　处：《中国农学通报》2018年第13期150-154,共5页Chinese Agricultural Science Bulletin

基　　金：国家重点研发计划课题"东北春玉米区主要病虫草害的绿色防控技术"(2016YFD0300704);黑龙江省农业科技创新工程院级科研项目"稻螟赤眼蜂中间寄主筛选与繁殖技术研究"(2014ZD025)

摘　　要：旨在寻求适合繁殖稻螟赤眼蜂(Trichogramma japonicum Ashmead)种群的中间寄主。笔者以小菜蛾[Plutella xylostella(L.)]卵和甜菜夜蛾(Spodoptera exigua Hübner)卵为中间寄主,编制稻螟赤眼蜂的种群生命表,分析比较生殖参数,评价其对2种中间寄主的适合性。结果表明,稻螟赤眼蜂在小菜蛾卵上的净生殖力R_0、内禀增长率r_m、周限增长率λ与平均世代历期T分别为6.12、0.1996、1.2210、9.0728,在甜菜夜蛾卵上的上述各项参数分别为10.58、0.2573、1.2934、9.1678。稻螟赤眼蜂在甜菜夜蛾卵上各项生殖参数都要高于在小菜蛾卵上的表现。甜菜夜蛾卵较小菜蛾卵更适合用作稻螟赤眼蜂繁殖的中间寄主。The paper aims to find suitable intermediate hosts of breeding Trichogramma japonicum（Ashmead）. The authors produce the life table of T. japonicum, compare and analyze its reproductive parameters, and evaluate the adaptability of T. japonicum to the two intermediate hosts which are eggs of the Plutela xylostella（L.） and Spodoptera exigua（Hǜbner）. The results showed that： the reproductive parameters such as net reproductive rate（R0）, intrinsic increase rate（rm）, finite increase rate（λ） and mean generation time（T） of T. japonicum on the eggs of P. xylostella were 6.12, 0.1996, 1.2210 and 9.0728, respectively. Whereas,those parameters on the eggs of S. exigua were 10.58, 0.2573, 1.2934 and 9.1678, respectively. The reproductive parameters on the eggs of S. exigua are better than those on the eggs of P. xylostella. Thus, the egg of S. exigua is more suitable host for T. japonicum.

关 键 词：稻螟赤眼蜂 小菜蛾 甜菜夜蛾 生命表 

分 类 号：Q969.93[生物学—昆虫学]