Study on prediction models of beginning period of Empoasca vitis activity peak
假眼小绿叶蝉种群活动高峰始盛期预测模型的研究

Based on establishing the combinative prediction models AR ( p) of the linear regression and lime scries,a method for prediction of beginning period of activity peak of Empoasca vitis next year,by using observed values of climat-ic factions in last year,was proposed.Therefore one can advance the announcement date of pest disaster explosion.The prediction practices in Fu'an tea field,Fujian Province,indicate that this combinative prediction method is a feasible mean.