利用性诱剂监测果园食心虫发生动态试验

Test of Monitoring Occurrence Dynamic of Borer Using Sex Attractant in Orchard

利用性诱剂分别对梨小食心虫、苹果蠹蛾在红富士苹果园和香梨园进行监测,经过测定,初步掌握了梨小食心虫和苹果蠹蛾消长动态;在新疆阿克苏地区梨小食心虫1年发生4代和一个不完整的第5代;苹果蠹蛾1年发生3代和一个不完整的第4代。通过诱捕成虫数量调查发现两种食心虫的越冬代成虫羽化期时间长而且数量最多,化学防治的关键为越冬代的成虫和第1代幼虫;通过对红富士苹果园、香梨园中梨小食心虫和苹果蠹蛾的诱捕效果对比,初步表明梨小食心虫为我区蛀果害虫的优势种群。

The population dynamic of pear fruit borer and codling moth were primarily known by monitoring pear fruit borer and codling moth using sex attractant in Fuji apple and fragrant pear orchard.The codling moth could developed full three generations and could not develop complete four generations and Pear fruit borer could developed full four generations and could not develop complete five generations.The numbers of overwintering generation adults of codling moth and pear fruit borer were large with long emergence period by monitoring the trapped numbers of adults.Overwintering generation of adults and first generation larvae were the key of chemical controlling.The result showed that pear fruit borer was the fruit pest of dominant populationin in Aksu region by comparing the trapped effect of codling mothpear and fruit borer in Fuji apple and fragrant pear orchard.