摘要
１９９５－１９９７年在浙江黄岩用生命表的方法研究了未受座壳饱菌寄生的柑桔粉虱的自然种群动态。结果显示，柑桔粉虱第一、二、三世代的种群趋势指数分别为８．９１、４．０８和５．９４，存活曲线也稍有差异，其中第二世代基本上属于ＳｌｏｂｏｄｋｉｎⅣ型，而第一、三世代则介于ＳｌｏｂｏｄｋｉｎⅣ型和ＳｌｏｂｏｄｋｉｎⅢ型之间。对柑桔粉虱的种群数量起控制作用的主要因子是自然死亡和因风雨冲刷等造成的失踪。
The life table for field population of citrus whitefly free of parasitic fungus Aschersonia was studied in Huangyan,Zhejiang Province in 1995-1997.The population trend indexes for its lst,2nd and 3rd generation were 8.91,4.08 and 5.94,respectively.Their surviral curves varied slightly with generations either,i.e.,for the 2nd generation it badically tallied with Slobodkin′s curve Ⅳ,and it was between Slobodkin′s curve Ⅳ and Ⅲ for the lst and 3rd generation.The most important factors controlling population of Citrus whitefly were first,natural death and disappearance caused by wind and rain etc.,second,parasitization of parasitic insects.
出处
《浙江农业学报》
CSCD
1998年第3期128-132,共5页
Acta Agriculturae Zhejiangensis
关键词
柑桔粉虱
生命表
种群趋势指数
存活曲线
citrus whitefly
life table
population trend index
surviral curve,lethal factor
