哥德恩蚜小蜂对6种不同植物及其挥发物的选择行为.pdf

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1、南方农业学报JournalofSouthernAgricultureISSN2095—1191；CODENNNXAABDOI：10．3969~：issn．2095-1191．2015．2．250哥德恩蚜小蜂对6种不同植物及其挥发物的选择行为陈俊谕，韩冬银，张方平，牛黎明，陈泰运，符悦冠(中国热带农业科学院环境与植物保护研究所，海口571101)摘要：【目的】揭示哥德恩蚜小蜂(EncarsiaguadeloupaeViggiani)对螺旋粉虱(AlerodicusdispersusRussel1)不同寄主植物及其挥发物的选择行为，

2、为人工扩繁哥德恩蚜小蜂的最适寄主植物选择提供参考。【方法】采用寄生选择试验和Y型嗅觉仪观测哥德恩蚜小蜂对6种螺旋粉虱寄主植物(番石榴、一品红、木薯、番木瓜、番茄、辣椒)的趋性差异。【结果】哥德恩蚜小蜂对6种不同供试植物上螺旋粉虱的寄生率从高到低依次为：番石榴>一品红>辣椒>番木瓜>木薯>番茄；Y型嗅觉仪测定结果表明，哥德恩蚜小蜂对一品红的趋性最强，其次为番石榴，对木薯、番茄趋性较弱。【结论】一品红和番石榴均是哥德恩蚜小蜂选择率较高的植物，理论上可将其作为寄主植物繁殖饲养哥德恩蚜小蜂。关键词：哥德恩蚜小蜂；螺旋粉虱；寄主植物；寄生

3、率；Y型嗅觉仪；选择行为中图分类号：s435．79文献标志码：A文章编号：2095—1191(2015)02—0250—05SelectivebehaviorofEncarsiaguadeloupaeViggianitosixkindsofplantsandvolatilesCHENJun-yu，HANDong—yin，ZHANGFang-ping，NIULi—ruing，CHENTai-yun，FUYue-guan(EnvironmentandPlantProtectionInstitute，ChineseAcademyofT

4、ropicalAgriculturalSciences，Haikou571101，China)Abstract：【Objective】TheselectivebehaviorofEnearsiaguadeloupaeViggianiondifferenthostplantsofAlerodicusdispersusRussellwasrevealedtoprovidetheoreticalreferencesforfindingthebesthostplantfortheparasitoidbreeding．【Method】Th

5、eselectivedifferencesofE．guadeloupaetoA．dispersusonsixkindsofhostplants(guava，poinsettia，cas—sava，papaya，tomato，capsicum)weredeterminedusingrandomlyputhostplants(freeselection)and“Y”typeolfac—tometertests(directionalselection)．【Result]TheparasiticratiosofE．guadeloupa

6、eonA．dispersusfromdifferentkindsofhostplantwerelistedfromhightolowasfollows：guava>poinsettia>capsicum>papaya>cassava>tomato．The“Y”typeolfactometertestsofvolatilesfromdifferenthostplantsindicatedthatE．guadeloupaehadthehighesttaxistopoinsettiaandsecondhighesttaxistogua

7、va，andtomatoandcassavahadweakattractivenesstoEguadeloupae．【Conclusion】Bothpoin—settiaandguavahavehigherattractivenesstoE．guadeloupaethanotherplants，whichcanbeconsideredasthesuitablehostplantsforbreedingE．guadeloupae．Keywords：EnearsiaguadeloupaeViggiani；Aleurodicusdis

8、persusRussell；hostplant；parasiticratio；“Y”typeolfactometer：selectivebehaviorO引言多样，目前在全球热带地区均有分布。螺旋粉虱自【研究意义】螺旋粉虱(AJer0cusdispersusRu