| 程家安;祝增荣.2005年长江流域稻区褐飞虱暴发成灾原因分析[J].植物保护,2006,32(4):1-4. |
| 2005年长江流域稻区褐飞虱暴发成灾原因分析 |
| Analysis on the key factors causing the outbreak of brown planthopper in Yangtze Area,China in 2005 |
| |
| DOI： |
| 中文关键词: 褐飞虱 迁入虫量 增长倍数 抗药性 |
| 英文关键词:Nilaparvata lugens immigrant growth rate pesticide resistance |
| 基金项目: |
| 程家安;祝增荣 |
| 浙江大学农业和生物技术学院昆虫科学研究所 杭州310029 |
| 摘要点击次数: 1257 |
| 全文下载次数: 1353 |
| 中文摘要: |
| 从害虫种群动态的基本原理出发,通过历史资料的比较分析,研究了导致2005年褐飞虱暴发成灾的关键因子。结果认为一定的迁入虫量为褐飞虱暴发成灾奠定了基础,异常高的种群增长倍数是暴发的关键,而引起高种群增长倍数的主要因子是单季稻面积的扩大,异常的气候条件和滥用化学农药。长期过量施用吡虫啉而引起的抗药性和失时防治带来的低防治效果,导致了严重的灾害。2005年褐飞虱暴发成灾的重要启示是:褐飞虱治理的关键在于通过减少前期不合理的农药施用,改良品种的遗传性状和促进田间自然控制作用,建立起一个能有效控制褐飞虱高增长能力的生态系统。 |
| 英文摘要: |
| The key factors causing the outbreak of the brown planthopper(BPH) in Yangtze Area in 2005 were analyzed,and the results revealed that the immigrants provided the initial population,but the high growth rate of BPH resulted from the increase of planting areas with single rice crop,favorable weather conditions and unjustifiable pesticide applications were the main parameters causing the outbreak.The high yield losses occurred due to high resistance of BPH to imidacloprid and the delay of pesticide application.A lesson learned from the outbreak is that the most important thing we should do to improve BPH management is to establish a sound rice ecosystem that can effectively reduce the growth rate of BPH population. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
