摘要
利用硫丹杀虫剂对夏津抗性棉铃虫进行室内选育１７代，棉铃虫对氰戊菊酯的抗性没有提高，而对硫丹的抗性却明显提高了５．８７倍。将硫丹选育种群（Ｅｄｏ－Ｒ种群）和未用任何杀虫剂的对照种群（ＣＫ种群）的某些生物学特征进行比较发现：Ｅｄｏ－Ｒ种群的幼虫发育历期较ＣＫ种群平均延长了２．３０ｄ（显著性检验ｐ＜０．０１）。Ｅｄｏ－Ｒ种群和ＣＫ种群未成熟期的存活率分别为３６．６７％和５４．１７％（显著性检验ｐ＜０．０１）。其它的一些生物学指标则不存在显著差异。Ｅｄｏ－Ｒ种群相对于ＣＫ种群具有０．６４的适合度。
Under artificial climate condition the Xiajin resistant cotton
bollworm strain was selected with endosulfan generation to generation. Up to 17 generations
the resistance to fenvalerate had no development ,but the resistant to endosulfan was
increased to 5.87 fold. The biotic comparation was taken to endosulfan resistant (Edo-R) strain
and CK(Xiajin resistant cotton bollworm under insecticide free condition) strain. The result
indicated that the development duration of larvae of Edo-R strain was delayed 2 .3 days than CK
strain and the survival rate of unripe stage was 36.67 and 54.17 percent respectively. The other
biotic characteristic had no obvious difference between two strains. The Edo-R strain was
calculated to have a fitness value of 0.64 relative to CK strain.
出处
《农药科学与管理》
CAS
1999年第2期18-19,共2页
Pesticide Science and Administration
关键词
棉铃虫
硫丹
生物学
相对适合度
heliothis armigera
endosulfan biologic relative fitnes
