本文研究了榆蓝叶甲预测预报技术。经多年试验和对比分析,组建了以发育历期法预测其1、2代幼虫孵化始期和化蛹盛期预测式,组建了以生命表为基础的发生量预测式和危害程度预测式,提出了以卵和幼虫为标志的防治指标。经实践验证,预测准确率为75～95％。 This paper studies the prediction and forecasting technology of Ulmus excelsior. After years of experiments and comparative analysis, the predictive formulas of the first and second pupal larvae ’s hatching period and the pupal extinction period were established by the development history method, and the prediction formula of the occurrence amount and the damage degree based on the life table were established. The eggs and larvae as a symbol of prevention and control indicators. Proved by practice, the prediction accuracy is 75-95%.