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本文报道海氏桨角蚜小蜂Eretmocerus hayati在室内对不同寄主密度下的B型和Q型烟粉虱Bemisia tabaci寄生和取食情况,并比较了该蜂对两种生物型烟粉虱功能反应的差异。结果表明,海氏桨角蚜小蜂对两种生物型烟粉虱的寄生率和致死率可分别达到60%和70%以上,平均每日最大致死量可达40头烟粉虱若虫。该蜂对两种生物型烟粉虱的功能反应曲线符合HollingII型,随寄主密度的增加对烟粉虱若虫的寄生和致死数量均增加直至达到每日最大致死数量,而寄生率和致死率则随寄主密度的增加而显著下降。该蜂对两种生物型烟粉虱的功能反应没有显著的差异。
This paper reports the parasitism and feeding situation of Bemisia tabaci of Bemisia tabaci (Bemisia tabaci) and Bemisia tabaci (Bemisia tabaci) at different host densities in the laboratory, and compared their responses to the two biotypes of Bemisia tabaci (Gennadius) The difference. The results showed that the parasitism and lethality of B. avenae to B. tabaci could reach 60% and 70% respectively, and the average daily maximum lethal dose reached 40 B. tabaci nymphs. The functional response of the bee to the two biotypes of Bemisia tabaci met the Holling type II, and the parasitism and lethality of Bemisia tabaci metamorphosis increased with the increase of host density until the maximum daily lethality was reached, while the parasitism and lethality were With the host density increased significantly decreased. The bee had no significant difference in functional response to the two biotypes of B. tabaci.