2011-2015年海淀区蝇密度监测分析

Investigation on flies density in Haidian District of Beijing from 2011 to 2015

目的了解北京市海淀区近5年蝇类种类、密度及季节消长规律,为蝇类综合防治提供科学依据。方法采用笼诱法。结果 2011-2015年共捕获蝇21 657只,平均蝇密度为12.13只/笼,其中密度最高的是2012年,年平均密度达到了18.88只/笼,2013年密度最低,仅为6.43只/笼。麻蝇和丝光绿蝇是优势种,分别占42.02%和31.93%。公园绿化带蝇密度最高,平均达20.94只/笼。结论北京市海淀区蝇类近3年控制较好,侵害主要以麻蝇和丝光绿蝇为主,公园绿化带是海淀区蝇类防治的重点。

Objective To find out the change rules of fly species,density and seasonal fluctuation in recent 5 years in Haidian District,and provide scientific basis for comprehensive fly control.Methods Cage-traps were employed in the investigation.Results Totally 21 657 flies were captured from 2011 to 2015. The average density of flies was 12. 13 insects/cage,the highest density was 18. 88 insects/cage in 2012,and the lowest was 6. 43 insects/cage in 2013.Sarcophagidae and Lucilia sericata were the dominant species,respectively accounting for 42. 02% and 31. 93%.Among the habitats,park green belts held the highest density of 20. 94 insects/cage. Conclusion Fly control work goes well in recent three years,and park green belts are important places for fly control.