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文献详情 >高大冷杉温室Strophosoma象甲的微生物防治(英文) 收藏

高大冷杉温室Strophosoma象甲的微生物防治(英文)

Microbial control of Strophosoma spp. larvae (Coleoptera:Curculionidae) in Abies procera greenery plantations

作     者:夏洛蒂.尼尔森 Susanne Vestergaard Susanne Harding JФrgen Eilenberg Charlotte Nielsen;Susanne Vestergaard;Susanne Harding;Jφrgen Eilenberg

作者机构:Department of EcologyCopenhagen UniversityFaculty of Life SciencesThorvaldsensvej 401871 Frederiksberg CDenmark 

出 版 物:《安徽农业大学学报》 (Journal of Anhui Agricultural University)

年 卷 期:2007年第34卷第2期

页      面:185-194页

学科分类:09[农学] 0904[农学-植物保护] 

基  金:Acknowledgements: Jan Martin  Christina Wolsted  Chris Lomer ( t)  Holger Philipsen  Rasmus Eliasen Charlotte Fisher  Karen Marie Kjeldsen and Jon Martin assisted in field work and development of ideas. Stefan Bech Skov and Hans Christian Jessen (The Danish Forest and Nature Agency) gave permission to field plots. Peter Lüth  Stephan Brückner and Sebastian Kiewnick  from Prophyta GmbH in Germany  provided fungal material for the field experiment. All the above mentioned persons are thanked. Financial support was given by the Danish Environmental Protection Agency (Grant no. 7041-0317 and 7041-0081 ) and EU (BIPESC0  EU FAIR6 CT-98-4105 ) 

主  题:高大冷杉 温室 微生物 Strophosoma象甲 防治措施 

摘      要:In Denmark,the weevils Strophosoma melanogrammum and S.capitatum cause economic damage in Noble fir due to the adult stage feeding on the needles.No chemical treatments of these weevils are allowed in Denmark,so biological control is an attractive solution.We evaluated the potential for microbial control of larvae of Strophosoma spp.based on laboratory bioassays and field applications,taking effect on both target and non-target into consideration,as well as persistence of the applied fungus.In the laboratory Beauveria bassiana,Paecilomyces farinosus and Metarhizium anisopliae were able to infect and cause mycosis in Strophosoma larvae.Among the tested isolates the most virulent isolate was M.anisopliae BIPESCO 5,which resulted in 80 % mortality.In the field experiment M.anisopliae,isolate BIPESCO 5,was applied to the soil as a conidial suspension against larvae of Strophosoma spp.The effect of the fungus on the target population was monitored at a weekly basis by counts of emerging adult weevils during their activity periods.The population of Strophosoma spp.was reduced by up to 60% in treated plots compared to control plots.The non-target effects of M.anisopliae were studied by sampling insects and ticks from both treated and control plots.Seven days after treatment,two sampled insect orders(Hemiptera and Coleoptera)and ticks were found with prevalences of M.anisopliae above 50%,compared to no infection in the insects collected from control plots.Infections in coccinellids were found as long as 277 days after treatment.However,the effect on population level of non-target is still unexplored.The persistence of the fungus was documented by plating a soil suspension onto agar.We documented that conidia of M.anisopliae could persist in the greenery plantation for at least 418 days after application.

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