滇东南富宁稻纵卷叶螟的迁入过程与虫源地分析.docVIP

滇东南富宁稻纵卷叶螟的迁入过程与虫源地分析 沈慧梅１　谌爱东１,　赵雪晴１　尹艳琼１　李向永１　韦家贵２ (１云南省农业科学院农业环境资源研究所,昆明６５０２０５;２云南省文山壮族苗族自治州富宁植保植检站,云南富宁６６３４００;通讯 联系人,EＧmail:shenad６８＠１６３．com) AnalysisontheImmigrationProcessandSourcePopulationoftheRiceLeaf Roller(CnaphalocrocismedinalisGuenee)atFuningCountyinSoutheastof YunnanProvince,China SHENHuiＧmei１,SHENAiＧdong１,,ZHAOXueＧqing１,YINYanＧqiong１,LIXiangＧyong１,WEIJiaＧgui２ (１InstituteofEnvironmentalResources,YunnanAcademyofAgriculturalSciences,Kunming６５０２０５,China;２PlantProtection StationofFuningCountyofYunnanProvince,Funing６６３４００,China;Correspondingauthor,EＧmail:shenad６８＠１６３．com) SHENHuimei,SHENAidong,ZHAOXueqing,etal．Analysisontheimmigrationprocessandsourcepopulationof thericeleafroller(CnaphalocrocismedinalisGuenee)atFuningCountyinSoutheastofYunnanProvince,China．Chin JRiceSci,２０１４,２８(４):４２７Ｇ４３４． Abstract:Thericeleafroller(Cnaphalocrocismedinalis)isaseriousmigratorypestonriceinthesoutheastof Yunnan,China．InordertoillustratethelargeＧscalelandingmechanismofpopulationofC．medinalis,twoimmigration processesinFuningCountyon３０May２００７andon２１May２００９andtheatmosphericbackgroundsduringthepeak dayswereanalyzedbasedonthedatafromfieldsurveyandbyusingHYSPLIT,atrajectoryanalysissoftware,GrADS (GridAnalysisandDisplaySystem)．Wegotthefollowingresults:１)TheearlyimmigrationofC．medinalisin２００７ directlycomefromtheRedRiverDeltaofVietnam,andthecontinuoussouthairflowandprecipitationwerethekey meteorologicalfactorstothemasslandingofthemoths;２)ThemainsourceareasoftheearlyimmigrationofC． medinalisin２００９werethesouthwestofGuangxiProvince．Thecontinuousrainfallandstrongsouthairflowwerethe keyfactorswhichaffectedtheimmigrationprocessofC．medinalis． Keywords:Cnaphalocrocismedinalis;sourceareas;trajectoryanalysis;landingmechanism 沈慧梅,谌爱东,赵雪晴,等．滇东南富宁稻纵卷叶螟的迁入过程与虫源地分析．中国水稻科学,２０１４,２８(４):４２７Ｇ ４３４． 摘　要:稻纵卷叶螟是滇东南稻区常年为害较重的水稻迁飞性害虫之一.为了阐明影响稻纵卷叶螟在富宁大规模集中降落 的关键天气学因子,通过HYSPLIT轨迹数值模拟平台、天气学背景分析软件GRADs,结合当地水稻生育期情况对富宁站 ２００７年５月３０日以及２００９年５月２１日出现的２次田间赶蛾高峰的迁入过程及虫源地进行个例分析.结果表明,２００７年５ 月３０日富宁田间出现的稻纵卷叶螟迁入种群直接来自越南红河三角洲,２００９年５月