中国农业科学Issue(19)：3810-3816,7.DOI:10.3864/j.issn.0578-1752.2014.19.009
三种本地赤眼蜂对大豆食心虫卵的寄生潜能
Parasitism Potential of Three Indigenous Trichogramma Species on the Eggs of Soybean Pod Borer (Leguminivora glycinivorella)
摘要
Abstract
[Objective]The soybean pod borer (SPB), Leguminivora glycinivorella Matsumura, is the most serious pest of soybean production in North China. The objective of this study is to determine the parasitism potential of three indigenous Trichogramma species (T. leucaniae, T. ostriniae and T. chilonis) on their natural host eggs of SPB.[Method]The experimental population life tables on SPB eggs were established for each Trichogramma species reared on the eggs of rice moth (Corcyra cephalonica), and the reproductive property parameters of the net reproduction rate (R0), mean generation time (T), intrinsic rate of natural increase (rm), finite rate of increase (λ), number of host eggs parasitized per female, average longevity of female and emergence rate were compared and analyzed. [Result] Three Trichogramma species all had the peak of fecundity at the first day after emergence, the percentages of eggs laid in total number were 68.1%, 69.1%and 64.0%for T. chilonis, T. ostriniae and T. leucaniae, respectively. With longevity increasing, T. chilonis and T. ostriniae exhibited a significant decrease in fecundity. Ten percent individuals of T. leucaniae survived for 7 days without any nutrient offered. Per female of T. leucaniae averagely parasitized 10.5 eggs of SPB (22.5% of total parasitization) 3 days after emergence. The R0, T, rm and λ of T. leucaniae, T. chilonis and T. ostriniae on SPB eggs were 24.75, 23.78 and 21.13;9.46, 10.34 and 10.37 d;0.3393, 0.3064 and 0.2941;1.4040, 1.3585 and 1.3419, respectively. However, there were no significant differences in longevity of female wasps and emergence rate in SPB eggs among the three Trichogramma species. Generally, the reproductive property parameters (R0, T, rm andλ) of T. leucaniae were more ideal than those of T. chilonis and T. ostriniae. [Conclusion] Based on the parameters of life table on their natural hosts of SPB, the present study indicated that T. leucaniae could be a suitable biological control agent for controlling SPB.关键词
黏虫赤眼蜂/螟黄赤眼蜂/玉米螟赤眼蜂/大豆食心虫/寄生潜能/生命表Key words
Trichogramma leucaniae/Trichogramma chilonis/Trichogramma ostriniae/Leguminivora glycinivorella/parasitism potential/life table引用本文复制引用
林英,宋丽威,臧连生,阮长春,史树森..三种本地赤眼蜂对大豆食心虫卵的寄生潜能[J].中国农业科学,2014,(19):3810-3816,7.基金项目
国家重点基础研究发展计划（2013CB127605）、现代农业产业技术体系建设专项 （）
