马铃薯瓢虫Henosepilachna vigintioctomaculata Motsch发育起点温度及有效积温的研究

Study on the Developmental Zero and the Active Accumulated Temperature of the Phytophagous Ladybird, Henosepilachna vigintioctomaculata Motsch.

在定温条件下用直接最优化法对马铃薯瓢虫Henosepilachna vigintioctomaculataMotsch.)的发育起点温度C(C)和有效积温K(日度)的研究结果表明,该虫卵、幼虫、蛹及全世代的C值分别为10.4251、9.4831、9.3640、9.1396,K值分别为68.6587、239.2038、75.1445和 607.2192。

The development duration (D) of different satge of the phytophagous ladybird 11. niyiutivctumaculata, were tested under several constant temperature conditions, and the development zero (C) and active accumulated temperature (K)of the egg,larva ,pupa and whole generation were calculated using the direct and preferable method. The results showed that the "C" of the egg,larva, pupa and whole generation were 10. 4251℃.9. 4831℃,9.3640℃ and 9.1396℃ seperately, and the "K",68.6587,239.2038,75. 1445 ang 607. 2192 respectively. The application of "C" and "K" in forecasting the oc-curing of the pest was discussed in the papers.