5种寄主上的尼氏真绥螨对柑橘红蜘蛛的捕食能力差异研究

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1、生物灾害科学2012,35(2):157－160http://xuebao.jxau.edu.cnBiologicalDisasterScience,Vol.35,No.2,2012swzhkx@163.comDOI：10.3969/j.issn.2095-3704.2012.02.0075种寄主上的尼氏真绥螨对柑橘红蜘蛛的捕食能力差异研究1121熊忠华，熊件妹，李海霞，王新辉（1.江西农业大学农学院，南昌330045；2.江西省贵溪市金屯镇农业综合服务站，江西贵溪335416）摘要：室内测定了5种寄主上的尼氏真绥螨对柑橘红蜘蛛的日捕食量和持续捕食能力。结果

2、表明，柑橘上的尼氏真绥螨成螨对柑橘红蜘蛛成螨的日均捕食量最大，显著高于紫苏；而梧桐、薄荷和茶叶3种寄主上的尼氏真绥螨对柑橘红蜘蛛雌成螨的捕食力与柑橘上的无显著差异。对柑橘红蜘蛛若螨的捕食能力以薄荷和梧桐上的显著为高，柑橘和茶叶上的次之，紫苏上的最低；而5种寄主上的尼氏真绥螨对柑橘红蜘蛛幼螨的日均捕食量之间无显著差异。对柑橘红蜘蛛成螨的持续捕食能力结果显示，各处理连续3天的日均捕食量基本呈现略微降低的趋势，但3天之间均无显著差异。上述结果证明不同寄主上的尼氏真绥对柑橘红蜘蛛的捕食能力存在差异，且对柑橘红蜘蛛成螨的捕食能力较为稳定。关键词：尼氏真绥螨；柑橘红蜘蛛

3、；捕食能力+中图分类号：S476.2文献标志码：A文章编号：2095－3704（2012）02－0157－04DifferenceofPredatoryCapacityforEuseiusnicholsifromFiveDifferentHostPlantsPreyingonPanonychuscitri1121XIONGZhong-hua,XIONGJian-mei,LIHai-xia,WANGXin-hui（1.CollegeofAgronomy,JiangxiAgriculturalUniversity,Nanchang330045,China;2.C

4、omprehensiveAgriculturalServiceStationofJintunTownofGuixiCity,Guixi335416,China）Abstract：ThedailyandpersistentpredatorycapacityofEuseiusnicholsifromfivedifferenthostplantsonPanonychuscitriweredeterminedinthelab.Theresultsshowedthatthedailypredatoryamountofafemaleadultfromcitrusonad

5、ultsofP.citriwassignificantlyhigherthenperillafruitescens.AndthethreeothershadnosignificantdifferencefromtheadultsofE.nicholsi.ThepredatorynumberofE.nicholsifromMenthahaplocalyx.brip.andFimianasimplexonmitesnymphsweresignificantlyhigherthanothers,thesecondweretheE.nicholsifromcitru

6、sandteaplant.However,therewerenosignificantdifferenceofthepredatoryamountonlarvaeofP.citriamongthefivetreatmentsofthepersistentpredatorycapacityonadultsofP.citri,whichindicatedthattherewerenosignificantdifference，althoughthetendencyofthedailyaveragepredatoryamountwasslightlydecreas

7、inginthethreedays.ItcouldbeprovedthatthereweredifferentofthepredatorycapacityofE.nicholsifromdifferenthostplantsonP.citriandthepersistentpredatorycapacityonadultsofP.citriwerestable.Keywords:Euseiusnicholsi;Panonychuscitri;predatorycapacity[2-3]尼氏真绥螨Euseiusnicholsi(EharaetLee)，属江西桔

8、园叶螨天敌的优势种，其栖息植物十分广于植绥螨科真绥螨