不同氰戊菊酯抗性水平的棉铃虫滞育比较研究

A Comparative study on diapause of Helicoverpa armigera(Hübner) with different fenvalerate resistance levels.

本文利用人工诱导滞育的方法，对不同氰戊菊酯抗性水平的棉铃虫蛹滞育进行了比较研究。结果表明，氰戊菊酯抗性高的棉铃虫滞育率低，滞育蛹历期长，耐寒性差。不同氰戊菊酯抗性水平的棉铃虫蛹重无显著差异。

The differences of diapause of Helioverpa armigera (Hubner) of high and low fenvalerate resistance level are studied through the method of artificial induced diapause. The resalts indicated that the pupae of H. armigera of high fenvalerate resistance level have lower diapause rate, longer diapause time and lower winter hardiness than the pupae of low fenvalerate resistance level. The pupal weight of both, however, shows little difference.