不同食物对烟粉虱三种寄生蜂取食寄生等行为的影响
Effects of different foods on the feeding and parasitic behavior of three parasitoids of the whitefly Bemisia tabaci
党 芳** 何 瞻 郭长飞 许炜明 任顺祥 邱宝利***
点击：2051次 下载：40次
DOI：10.7679/j.issn.2095-1353.2015.007
作者单位：华南农业大学昆虫学系，生物防治教育部工程研究中心，广州 510642
中文关键词：蚜小蜂，烟粉虱，补充营养，行为，频次，时间分配
英文关键词： aphelinid parasitoid, Bemisia tabaci, nutrition supplement, behavior, frequency, time assignment
中文摘要：
【目的】 就不同食物对烟粉虱Bemisia tabaci（Gennadius）寄生蜂取食、寄生等行为的影响进行分析，以阐明食物或营养来源对蚜小蜂取食、寄生等生物学行为的影响机制。【方法】 以古桥桨角蚜小蜂Eretmocerus furuhashii、丽蚜小蜂Encarsia formosa和双斑恩蚜小蜂Encarsia bimaculata为研究对象，分别以蜂蜜水、2~3龄烟粉虱若虫及清水进行饲喂，观察和研究分析3种食物来源对3种蚜小蜂取食与寄生等行为的影响。【结果】 3种蚜小蜂均以取食15%蜂蜜水的蚜小蜂的取食、搜索与寄生等行为频次最高、分配时间最长，而取食清水的蚜小蜂取食、搜索与寄生等行为频次最低、分配时间最短；取食不同食物后，3种蚜小蜂各种行为的变化趋势一致。【结论】 不同食物或营养来源对蚜小蜂的取食及寄生等行为有着显著的影响，进而可以影响到蚜小蜂对烟粉虱的生物防治效率。
英文摘要：
[Objectives] Todetermine the effects of different foods on the feeding, parasitic and other behaviors of parasitoids of the whiteflyBemisia tabaci.[Methods] Different foods, including 15% honey solution, 2-3 instarB. tabacinymphs, and natural water, were provided to three common species of whitefly parasitoidsEretmocerus furuhashii, Encarsia formosaandEncarsia bimaculataand the effects of these different foods on the feeding, parasitic and other behaviors of the three parasitoids was observed and investigated.[Results] Food had an obvious effect on parasitoid behavior. The highest frequencies of feeding, searching and parasitic behavior, and the longest periods of time spent engaged in these behaviors, were recorded in the parasitoids fed on honey solution. Those wasps fed on water exhibited the lowest frequencies and spent the shortest time engaged in these behaviors. Overall trends in these behaviors did not change among the different parasitoid species.[Conclusion] Different foods have significant effects onthe feeding, parasitic, and other behaviors, ofaphelinid papasitoids, and theseeffects may also affect their effectiveness as biological control forB. tabaci