性诱剂对象山县柑橘潜叶蛾的诱捕效果研究

本文利用性诱剂对象山县柑橘园中的柑橘潜叶蛾Phyllocnistis citrella Stainton进行了种群动态监测，同时研究了诱捕器不同悬挂高度、位置及离橘园不同距离对性诱剂诱集柑橘潜叶蛾效果的影响。结果表明，柑橘潜叶蛾虫量在8月开始迅速上升，8月12日达到最高峰，9月到10月间断出现4个小高峰，11月之后虫量很低；性诱捕装置所诱柑橘潜叶蛾数量显著高于对照组；诱捕器的悬挂高度对性诱剂诱捕柑橘潜叶蛾的诱集量无显著影响；在树冠边缘和树冠中心悬挂诱捕器对性诱剂诱捕柑橘潜叶蛾也无显著影响；柑橘潜叶蛾性诱剂的有效诱捕距离应在20m范围之内，超过20m则诱虫效果显著下降。上述结果表明，科学使用性诱剂可以有效控制象山县柑橘潜叶蛾的危害，为当地带来重要的经 济效益和社会效益。

Study on the trapping effect of sex pheromone on Phyllocnistis citrella Stainton in Xiangshan County

In our study, sex pheromone traps were used for monitoring the dynamics of leaf-miner populations, Phyllocnistis citrella Stainton in the citrus orchard of Xiangshan County. Meanwhile, the effect of the traps in different height, position and distance to the orangery was also discussed. Our study revealed that the population of trapped P. Citrella. quickly increased in early August and reached its peak on Aug. 12th, then four small peaks intermittently emerged from September to October, after that the population became less in November. Moreover, the number of P. Citrella. trapped by treated groups was significantly higher than those trapped by control. However, the traps in different height had no significant difference and the position between canopy edge and crown center also had no significant difference. Furthermore, the effective distance of the traps should be controlled within 20m in case of trapping effect decreasing significantly. Therefore, leaf-miner, Phyllocnistis citrella Stainton, in the citrus orchard of Xiangshan County can be effectively controlled by scientific and effective use of sex pheromone traps, which brings great economic and social benefits.