摘要
阿维菌素汰选的小菜蛾抗性种群 (ABM- R)与相对敏感种群 (ABM- S)相比不表现繁殖不利性。 ABM- R种群的交配率、有效产卵指数和孵化率均显著大于 ABM- S种群 ,ABM- R种群的内禀增长率为 0 .139,是 ABM- S种群的 1.19倍 ,相对适合度为 ABM- S种群的1.4 9倍。建立了 ABM- S和 ABM- R种群的生命表 ,并对抗性治理进行了讨论。
Biotic fitness of both resistant and susceptible strains of Plutella xylostella to abamectin was investigated in laboratory. Results showed that there was no reproductive disadvantage in the resistant strain (ABM R). Moreover, the mating rate, hatchability, and effective oviposition index of ABM R were significantly higher than that of the susceptible strain (ABM S). The intrinsic rate of increase of ABM R was 0.139, which was 1.19 fold compared with that of the ABM S strain, and its relative fitness was 1.49 times that of the ABM S. The life table of the two strains was established. And the strategies of resistance management were also discussed.
出处
《农药学学报》
CAS
CSCD
2000年第1期36-40,共5页
Chinese Journal of Pesticide Science
