“两迁”害虫是影响水稻安全生产的重大害虫,常年在湖南发生较重。笔者对“两迁”害虫在湖南的发生规律及特点进行了分析,一般来说,“两迁”害虫发生量与迁入时间等关系密切,迁入早、峰次多,则虫量大,反之虫量小。虫量还受气候条件影响,年度间发生程度迥异。据此,提出了加强健身栽培、加强监测预警、推进专业化综合防控与绿色防控技术、科学合理用药的防控对策。 “Two move ” Pest is a major pest that affects the safe production of rice, perennial heavy occurrence in Hunan. The author analyzes the occurrence and characteristics of pests in Hunan Province. In general, the occurrence of pests and the number of pests in immigrants are closely related to the time of immigration. Large amount of insects, the other hand, a small amount of insects. The amount of insects also affected by climatic conditions, the degree of occurrence varies widely between the year. Accordingly, the countermeasures for prevention and control of strengthening the cultivation of health, strengthening the monitoring and early warning, promoting the specialization of integrated prevention and control and green prevention and control, and scientific and rational drug use are put forward.