中越水稻迁飞性害虫稻飞虱、稻纵卷叶螟发生关系分析

摘要

中越两国同属东亚季风区,水稻病虫害在发生危害上为一个整体.每年水稻稻飞虱、稻纵卷叶螟(以下简称"两迁"害虫)随着季节和气温变化,在两国间往返迁飞,发生为害,相互影响.研究两国水稻迁飞性害虫发生的关系和影响规律,对于提高监测预警的早期预见性和防控工作的主动性,有效控制其危害具有重要意义.2010年以来,中越两国实施了中越水稻迁飞性害虫监测与防治合作项目,通过连续多年开展交流合作,初步明确了越南"两迁"害虫发生规律.本文简要分析了影响越南"两迁"害虫发生的主要因素,探讨了中越两国水稻"两迁"害虫发生规律的相关性,对提高中国"两迁"害虫中、长期预报能力和综合治理水平发挥了积极作用.%Both China and Vietnam belong to East Asian monsoon region,where the rice pests and diseases occur as a whole.Especially rice planthopper(RPH)and rice leaf folder(RLF),they migrate between China and Viet-nam with the change of seasons and temperature every year,and influence each other.Therefore,to study migra-tory pest relationships between China and Vietnam is of great significance for improving early warning and initia-tive control.Since 2010,China and Vietnam have implemented the project on technical cooperation in surveil-lance and management of rice migratory pests.Through many years'studies,the occurrence pattern of rice migra-tory pests in Vietnam was identified.Here we analyzed the relationships of RPH and RLF occurrence between China and Vietnam,which plays a positive role in improving medium and long-term forecasting ability and com-prehensive management level.