2015年福建省局部地区褐飞虱暴发成灾主要原因分析与防控对策

Management measures and analysis on the major factors causing outbreak of brown planthopper in partial area of Fujian in 2015

针对福建省2015年水稻褐飞虱暴发成灾,从昆虫种群生态学原理出发,结合历史相关资料,总结研究了导致2015年褐飞虱暴发成灾的主要原因。褐飞虱本地虫源和外来迁入虫源是重要诱因,极高的种群增长率是决定性关键内因,异常气候与水稻抽穗灌浆期契合形成的适宜环境及食物营养条件是决定性关键外因,田间防治技术问题则是导致灾害并造成重大损失的直接原因。褐飞虱持续治理对策方面,需加强褐飞虱种群监测与预警,开展抗药性监测与治理,实施稻田肥料和农药减施技术,并加强防控应用技术的研究与推广及技术培训,加快推进实施褐飞虱专业化防治。

Combined with the historical data,the factors causing the outbreak of brown planthopper（ BPH）,Nilaparvata lugens（ Stl） were analyzed by the method of ecological principle of insect population in Fujian in 2015. The results revealed that the mixture of immigrants amd local initial populations were the important incentive causes of outbreak of BPH,but the key and crucial cause of internal was the extremely high growth rate of BPH. And the favorable weather conditions corresponded with the rice period of heading and grain filling formatted the key and crucial factors of extrinsic. So the synergistic action of the key factors of internal and extrinsic leaded to the outbreak of BPH. The immediate cause of high yield losses occurred mainly due to the failure of prevention and control on BPH. So the research of populations and resistance monitoring on BPH,reduce to use pesticide and chemical fertilizer in rice field,applied technology of control and training should be all carried out further. The work of professional prevention and control on BPH should also be accelerated and promoted also.