关键词: 城市下水道, 鼠类防制, 分布特点

Abstract: Objective:To investigate the Rodent distribution peculiality and the control technology.Methods:Using bait expending to observe the rodent distribution on the different zone,environments and seasons;Using the pairing bait to analysis the palatability of difference poison bait;Using the bait expending,powdered spot and rodent trace to observe the rodent control effect and its influence to rodent density of the ground.Results:The rodent density is more than 30%(bait expending) in city sewer of Shanghai.The rats distribution peculiality was:⑴the rate of bait expending on alley-beginning higher than alley-end;⑵the rate of bait expending on emphasis unit higher than non-emphasis unit and residence area;⑶the rate of bait expending on old city proper higher than new;⑷the rats density was non-relation between good sewer cover and poor;⑸it was non-relation between the area of along the river and non-along the river;⑹the rats population peak was spring(March and April) and autumn(October and November).Used meat dishes(roast duck,crust,sausage,meat) and oil food was more excellent than used wax bait.Used wax bait for rats serious harassment was also an effect control method.Two poison baits per sewer(wax+meat dishes or wax+oil food) were used to control the city sewer rodent.The rats density on ground was decline 57.58%(powdered spot),40.57%(rate of rats per family) and 64.45 %(rodent trace).Conclusions:Controlling the city sewer rodent is a complicacy work,it should be basis on investigating the rodent distribution,formulating preventive strategy for rodent of city sewer and studying best controlling period and methods.It should be strengthen rodent prevention equipment and controlling rodent of city sewer.