摘要
为了研究异色瓢虫经过多代高效氯氰菊酯处理后的发育和繁殖情况,组建室内种群生命表和繁殖特征生命表,计算了生命表的相关参数。结果表明:施药组和对照(不施药)相比,除了蛹期间差异显著外,成虫前期各虫态历期间差异不显著;施药组成虫前期存活率为65%(对照为70%)。施药组每雌产卵量为(697.89±259.68)粒,对照为(489.67±257.69)粒;施药组雌虫的寿命为(92.80±18.44)d,显著高于对照(74.50±14.44)d;施药组的室内种群趋势指数为19.25,对照组为25.84;施药组净生殖率为1750.33,对照组为1471.19;卵到死亡所经历的时间施药组经历了8.15周,对照组经历了7.04周;施药组内禀增长力为0.92,对照组为1.04;施药组周限增长率为2.48,对照组为2.83。研究结果可作为异色瓢虫抗药性选育可能性的初步评价以及研究瓢虫抗逆性的参考。
Life tables for population and reproduction characters in laboratory were formed, and related parameters of life tables were calculated in this paper to study the development and reproduction of Harmonia axyridis treated by beta-cypermethrin multi-generation. The results showed that there was no significant difference on development duration in each larvae stage except pupae stage comparing with control. The mortality of pre-adult was 0. 65 （control was 0. 7）. The eggs production was （697. 89 ± 259.68） eggs per female （489.67±257.69） eggs for control, and the life time of female （92.80±18.44） days was significan longer than control （74.50±14.44） days. Laboratory population trend index （I） was 19.25 （control was 25. 84）. Net reproductive rate （R0） was 1750. 33 （1471. 19 for control）, mean generation time （T） was 8.15 （7.04 for control）, inner capacity increase（rm）was 0.92 （1.04 for control）, and finite rate of increase （X） was 2.48 （2. 83 for control）. The results could be used as reference for preliminary assessment of H. axyridis resistance breeding possibility, and for ladybirds stress resistance studies.
出处
《贵州农业科学》
CAS
北大核心
2010年第3期99-102,共4页
Guizhou Agricultural Sciences
基金
贵州大学人才基金"异色瓢虫不飞品系的培育与应用"(2009012)
贵州省科学技术基金"保护地环境下异色瓢虫的抗逆性研究"[黔科合J字(2007)2038]
国家科技支撑计划"害虫生物防治"(2008BADA5B02)
公益性行业(农业)科研专项"天敌资源的开发与利用"(200803006)
关键词
异色瓢虫
高效氯氰菊酯
生物学特性
生命表
Harmonia axyridis
beta-eypermethrin
biological characteristics
life table
