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目的了解大连市蟑螂种群密度分布、季节消长变化及侵害现状,为制定蟑螂防制策略提供科学依据。方法采用粘捕法,随机选取农贸市场、餐饮、宾馆、医院和居民区作为监测点,每月中旬进行监测。结果 2013年各监测点共布放有效粘蟑板2 160张,阳性246张,粘蟑数2 363只,其中德国小蠊2 359只、日本大蠊4只;若虫1 259只、雌虫562只、雄虫542只。蟑螂平均密度1.09只/张,侵害率11.39%。蟑螂密度5月最高,11月最低。结论优势种是德国小蠊,活动高峰为春夏季。农贸市场密度及侵害率最高,建议加强卫生监督管理及防制工作。
Objective To understand the distribution of cockroach population density, the change of seasonal fluctuation and the status quo of infestation in Dalian, and to provide a scientific basis for formulating the control strategy of cockroach. Methods Using sticky catching method, random selection of farmers’ markets, restaurants, hotels, hospitals and residential areas as monitoring points, mid-monthly monitoring. Results In 2013, a total of 2 160 valid sticky cockroach panels were found, with 246 positives and 2 363 sticky cockroaches, of which 2 359 were German cockroaches and 4 were Japanese cockroaches; 1 259 nymphs and 562 females , Male 542 only. The average density of cockroaches 1.09 / piece, the infringement rate of 11.39%. Cockroach density highest in May, the lowest in November. Conclusion The dominant species is German cockroach, the peak of activity is spring and summer. Farmers market density and the highest rate of violation, it is recommended to strengthen health supervision and management and prevention and control.