Prevention Situation Of Grapholihta Molesta(Busck) And Control Effect Investigation Of Sex Pheromone In Yuncheng City

At present, the prevention and control of grapholihta molesta mainly rely on chemical pesticides,there is no unified forecasting method and standard at home,farmers can not accurately grasp the trends and law of the local grapholihta molesta germination.The use of pesticides was based on traditional experience and was recommended by manufacturer. In order to ensure the control effect by increasing the frequency of the application and the quantity of the application,a lot of pesticides was wasted and pest resistance increased. In order to solve the serious harm problem of grapholihta molesta day by day.massive use of pesticides and low level prevention was outstanding problems.According to the occurrence and damage characteristics of grapholihta molesta,from the grapholihta molesta occurrence regularity and standardization of prediction technology, the suited method of the comprehensive prevention and control of grapholihta molesta is selected on the basis of characteristic of the region.The result showed:Isotropic distributor can disturb obviously normal mating of grapholihta molesta in the orchard.60 Isotropic distributors hanging in the field each mu and 6 Sweet and sour liquid traps or two treatments of pesticide can prevent grapholihta molesta,reduce quantity of younger generation,victim fruit rate descend obviously.