有效积温法预测茶尺蠖防治适期的研究

Studies on predicting the optimum control period by the thermal constant for the tea looper, Ectropis obliqua Warren

利用22年历史气象资料和有效积温法，由茶尺蠖幼虫期或成虫发生高峰期预测下一代防治适期，并进行验证。1993年在室内外经5代39次预测验证，总符合率达96．6％。由幼虫期预测可使预报提前20～35天。

The optimum control time For the next generation of Ectropis obliqua Warren was predicted from the larvae stage or the peak density period of adult by using the 22 years' climatic information and the method of thermal constant. According to the prediction on 39 generations in the laboratory and natural condition in 1993, the total coincident rate was 96.6%. The prediction from larvae stage could be moved up 20 - 35 days.