福建农业学报 ›› 2011, Vol. ›› Issue (3): 415-419.

• 植物保护 • 上一篇    下一篇

斯氏钝绥螨以截形叶螨为猎物的实验种群生命表

陈霞, 张艳璇, 季洁, 林坚贞   

  1. 福建省农业科学院植物保护研究所, 福建 福州 350013
  • 收稿日期:2011-01-18 修回日期:2011-04-11 出版日期:2011-06-15 发布日期:2011-06-15
  • 通讯作者: 张艳璇(1957-), 女, 博士, 研究员, 主要从事生物防治工作(E-mail: xuan7616@sina.com)
  • 基金资助:
    福建省科技计划项目——省属公益类科研院所专项(2009R10028-1);农业部公益性行业(农业)科研专项(nyhyzx07-057);农业科技成果转化资金项目(2009GBZC400173);福建省农业科学院科技创新重点项目(2007YCXZ03);福建省科技创新平台建设计划项目(2008N2002)

Experimental Life Table for Population of Amblyseius swirskii(Athias-Henriot)Fed on Tetranychus truncatus(Ehara)

CHEN XIA, ZHANG Yan-xuan, JI Jie, LIN Jian-zhen   

  1. Institute of Plant Protection, Fujian Academy of Agriculture Sciences, Fuzhou, Fujian 350013, China
  • Received:2011-01-18 Revised:2011-04-11 Online:2011-06-15 Published:2011-06-15

摘要: 研究了斯氏钝绥螨Amblyseius swirskii(Athias-Henriot)以截形叶螨Tetranychus truncatus(Ehara)为猎物在15、18、20、25、30和35℃下的发育和繁殖情况,组建了实验种群生命表。结果表明15℃时斯氏钝绥螨能完成发育,但存活率仅43.33%,且产卵不正常;在18~35℃之间斯氏钝绥螨能正常生长发育;在15~35℃之间斯氏钝绥螨的发育历期随温度的升高而缩短,雌螨的发育历期为5.75~31.50 d,雄螨的发育历期为3.96~20.00 d;斯氏钝绥螨的世代平均周期(T)和种群倍增时间(t)随着温度的升高而缩短,35℃时世代平均周期和种群倍增时间最短,分别为15.9380 d和3.5072 d;内禀增长率(rm)和周限增长率(λ)随着温度的升高而增大,在35℃时均最大,分别为0.197 6和1.218 5;雌雄性比和净增殖率随着温度的升高呈现先增后减的趋势,在25℃时性比和净增殖率均最大,分别为1.73和36.8600;产卵总量也在25℃时最大,达到57.60粒·雌-1

关键词: 斯氏钝绥螨, 截形叶螨, 发育历期, 生命表, 生物防治

Abstract: The parameters of a life table with an experimental population of Amblysieus swirskii(Athias-Henriot)were studied.At 6 constant temperatures(i.e.,15℃,18℃,20℃,25℃,30℃ and 35℃),A.swirskii were fed on Tetranychus truncatus(Ehara)to evaluate the feasibility of utilizing the predatory mites to control the spider mites.The in-laboratory experiments showed that,at 15℃,the predatory mite could develop,but its survival rate was less than 43.33%,and there were irregularities observed in its egg-laying.The temperature range of 18-35℃ was considered appropriate for the predatory mite's development.And,within the range,the time for A.swirskii to develop shortened as the temperature rose-the longest(31.50 days)at 15℃ and shortest(5.75days)at 35℃ for the females,and the longest(20.00 days)at 15℃ and shortest(3.96 days)at 35℃ for the males.The highest intrinsic rate of natural increase(rm = 0.1976)and the highest finite rate of increase(λ=1.2185)were observed at 35℃.The highest sex ratio(1.73:1)and the highest net reproductive rate(R0=36.8600)were found at 25℃.And,the highest mean number of eggs(57.60 eggs per female)occurred at 25℃.

Key words: Amblysieus swirskii(Athias-Henriot), Tetranychus truncatus(Ehara), developmental time, life table, biological control

中图分类号: 

  • S476