摘要
目的了解西安市城区蟑螂侵害情况。方法通过粘捕法，将捕获的蟑螂进行分类，统计数量。结果在2005—2008年，西安市城区蟑螂种类以德国小蠊为优势种群，平均侵害率为79．82％。侵害率较高的为餐饮业（93．59％）、农贸市场（85．37％）、居民区（79．34％）。蟑螂平均密度为11．3只／张，其中密度最高是餐饮业，为23只／张。每年4—9月粘蟑螂数量较多，蟑螂密度及侵害率也较高。结论西安市城区蟑螂侵害严重，防治工作必须尽快落实。
Objective To understand the invasion condition of cockroach in Xi＇ an urban area. Methods Catching the cockroach by glue method, then classifying and counting the quantity. Results Blattella gernutnica was predominant species in Xi＇ an urban area. Average invasion rate was as high as 79. 82% in 2005 - 2008. The in- vasion rates were higher in restaurants（93.59% ） ,terminal markets（ 85.37% ） ,residential areas（79. 34% ）. The av- erage cockroach density was 11.3 pieces per sheet. The restaurants had the highest cockroach density（23 pieces per sheet）. The seasonal fluctuation of cockroach had obvious regulation. The cockroach invasion rates and density indi- ces were higher from April to September. Conclusion The urban area in Xi＇ an are seriously invaded by cock- roach. The works of prevention and control of cockroach should be put into effect immediately.
出处
《中华卫生杀虫药械》
CAS
2010年第2期139-140,共2页
Chinese Journal of Hygienic Insecticides and Equipments
关键词
蟑螂
侵害情况
消长趋势
cockroach
invasion condition
growth and decay trend
