云南蔗区甘蔗螟虫种群结构动态与防控对策

为科学有效防控甘蔗螟虫，笔者在查阅历史资料和调查研究基础上，系统分析了云南蔗区甘蔗螟虫的种类、种群结构及动态，明确了云南蔗区甘蔗主要螟虫的分布区域、发生危害，揭示了影响甘蔗螟虫种群结构动态和猖獗的原因，并根据其发生危害特点，提出通过建立健全甘蔗检疫制度，切实加强甘蔗引种检疫，深入系统研究甘蔗螟虫新种群，建立甘蔗螟虫预警监测体系，积极开展物理防治、生物防治，切实加强天敌资源保护利用等对策措施，可科学有效防控甘蔗螟虫，减少为害损失。

The dynamics of population structure and control strategies of sugarcane borers in Yunnan

The species, population structure and population dynamics of the borers on sugarcane in Yunnan were analyzed based on the historical data and our investigation for the effective control of the borers. The distribution area and damage of the major borers in Yunnan cane-growing regions were ascertained. The factors influencing population dynamics of the borers and the causes of the borer rampancy were revealed. According to the damaging characteristics of these borers, suitable control strategies were proposed, establishing and improving the sugarcane quarantine system, enhancing the quarantine of the imported varieties/clones, thorough and systematic investigating the new borer populations, establishing the early warning and monitoring system, actively carrying out physical and biological control, and enhancing the protection of natural enemies. These measures and strategies could help to effectively control the borers on sugarcane and decrease the damage caused by these borers.