光照时间对双尾新小绥螨生长发育及种群参数的影响  

Effects of different photoperiods on the development and population parameters of Neoseiulus bicaudus Wainstein

作　　者：张燕南[1] 李永涛[1] 蒋珏瑛琪 苏杰[1] 郭丹丹[1] 张建萍[1] 

机构地区：[1]石河子大学农学院,石河子832000

出　　处：《应用昆虫学报》2016年第1期48-54,共7页Chinese Journal of Applied Entomology

基　　金：兵团杰出青年基金(2014CD004);公益性行业(农业)专项(201103020);国家棉花产业技术体系西北棉区病虫害综合防控(CARS-18)

摘　　要：【目的】为了进一步明确光照时间对双尾新小绥螨Neoseiulus bicaudus Wainstein生长发育的影响。【方法】在实验室恒温条件下,采用生命表研究方法,研究在不同光照时间下,双尾新小绥螨捕食土耳其斯坦叶螨的生长发育情况。【结果】双尾新小绥螨在不同光照时间段下均能完成世代周期。在光照时数小于12 h时,从卵发育至成螨的各个发育阶段所需时间均呈缩短趋势,当光照时数大于16 h后各个发育阶段所需的时间又呈增长趋势。产卵期在12L︰12D光照时数下最长为20.74 d,且同其他光照条件均存在显著性差异（P〈0.05）。产卵后期、寿命、总产卵量均表现在16L︰8D光照时数下最长,分别为11.93 d、31.05 d和42.4粒。双尾新小绥螨种群的净增值率（R_0）在16L︰8D时达到最大值33.88,在8L︰16D时最低为14.97。【结论】光照时间在12~16 h范围内最适合双尾新小绥螨生长发育。[Objectives] To study the development and reproduction of N. bicaudus. [Methods] The effects of different photoperiods on the development and reproduction of N. bicaudus feeding on T. turkestani, were measured and compared. [Results] N. bicaudus successfully completed its development under all five photoperiods. Developmental duration decreased under photoperiods 12 h, but increased under photoperiods 16 h. The oviposition period（20.74 d） was significantly longer under a photoperiod of 12 h（P〈0.05）. The post-oviposition period, life span and total fecundity were longest under a photoperiod of 16L︰8D（11.93 d, 31.05 d and 42.4 eggs/female, respectively）. Photoperiod had no significant effect on the offspring sex ratio. The net reproductive rate（R_0） was highest（33.88） under a photoperiod of 16L︰8D, and shortest（14.97） under one of 8L︰16D. [Conclusion] The optimum photoperiod for the development and reproduction of N. bicaudus preying on T. turkestani are between 12 and 16 h.

关 键 词：光照 捕食螨 害螨 发育历期 生命参数 

分 类 号：S476.2[农业科学—农业昆虫与害虫防治]