不同果园梨小食心虫发生动态监测研究

A Study on Dynamic Monitoring of Incidence of Grapholitha molesta in Various Orchard

近年来，梨小食心虫成为果树主要害虫且种群呈上升趋势，在一些桃、梨、苹果、杏等混栽区尤为猖獗，严重影响果品产业的发展。研究以新疆克拉玛依市农业开发区李园、桃园和苹果园中的梨小食心虫为研究对象，通过设置诱捕器对梨小食心虫的消长动态、种群密度及对果实的危害程度展开调查研究。结果发现：梨小食心虫在克拉玛依地区5～8月主要有4个发生高峰，发生时种群密度最大的是李园，其次为苹果园和蟠桃园；对果实危害最严重的是李果实，其次为蟠桃，基本不危害苹果；不同诱捕器对梨小食心虫的诱捕效果为粘式诱捕器1号＞粘式诱捕器2号＞瓶装诱捕器。

In recent years has become the main pest on fruit trees and the population has being on the rise and the incidence is especially serious in the areas where peach, pear, apple and apricot etc. were grown in a mixed way and the development of the fruit industry has be affected seriously. With in the plum, peach and apple orchards in the agricultural development zone in Kelamayi municipality in Xinjiang as the object of study, the fluctua-tion dynamics, population density of and the degree of its harm to fruit were investigated by setting traps. It was found that there were 4 incidence peaks of in Kelamayi region during May to August and the biggest population density was found in the plum orchard, and secondly in the apple and peach orchards. The fruit of the plum was harmed most seriously, the peach was harmed secondly and the apple was not harmed basically. The order of various traps＆#39; effects in trapping was as follows： sticky type trap 1〉sticky type trap 2〉bottled trap.