南通市通州区2014-2015年蟑螂密度监测结果分析

Analysis of cockroach density monitoring in Tongzhou District of Nantong from 2014 to 2015

目的了解南通市通州区蟑螂种群分布和密度,为制订蟑螂防治措施提供科学依据。方法参照《病媒生物密度监测方法-蜚蠊》(GB/T 23795-2009),采用粘捕法进行蟑螂密度监测。结果 2014年和2015年的平均粘捕率为16.10%,平均侵害率为17.43%,平均密度为0.74只/张,平均密度指数为4.61只/张。2014年粘捕率为18.12%,侵害率为18.33%,蟑螂密度为0.75只/张,平均密度指数为4.13只/张。2015年粘捕率为13.99%,侵害率为16.53%,蟑螂密度为0.73只/张,平均密度指数为5.24只/张。全年高峰期为6-8月份,9月份开始下降;蟑螂侵害率和密度最高的是农贸市场和餐饮行业。结论目前通州区蟑螂侵害水平较高,化学防治是降低其密度的首要手段,同时采取化学、环境、物理、生物相结合的综合性防治措施,以不断提高防治效果。

Objective To understand the changes of cockroaches＇ distribution and density in Tongzhou District of Nantong,and provide scientific basis for cockroach control.Methods Sticky trap method was employed in the monitoring based on the national standard GB/T 23795-2009.Results Generally,the average cockroach capture rate,invasion rate, density ,and density index were respectively 16. 10% ,17. 43% ,0. 74 insects per sheet and 4. 61 insects per sheet in the year of 2014 and 2015. Those were respectively 18. 12%, 18. 33% ,0. 75 insects per sheet and 4. 13 insects per sheet in 2014, and 13. 99%, 16. 53% ,0. 73 insects per sheet and 5.24 insects per sheet in 2015.The cockroaches were captured mostly in June, July and August.Farmers markets and catering services were the places with the highest cockroach density.Conclusion It is necessary to control cockroaches scientifically according to the cockroach population＇s characteristics.