The Study Of Rodent Damage And Management In The Urban Area

ObjectiveThe rodent not only presents a threat to people health, but also is harmful to the agriculture, the trade business, water and electricity department. The rodent species are changing since the rising population has outstretched the city and new buildings are rising in the city. More and more people pay attention to rodent control at present. We find out some influential factors about rodent damage and control in the urban community through questionnaire, research at the lab and field study. Collecting some information about the species and the densities of rodent, the killed effect, palatability and the feed-again palatability of the rodenticides. Offering the valid method to control rodent density in the field.MethodsChoose professionals, managers, 600 residents in two urban communities and carry out the questionnaire, then collecting the information about the condition of rodent control and rodent damage, environment, knowledge about rodent damage; Investigating the rodent density and species through powder tracking and rodent cassettes.Choose 36 mice and rats respectively, half of male and half of female. Divided them into 3 groups include the control, the 0.005% bromadiolone and the 0.0375% coumateralyl respectively, observe the killed effect, the palatability and the feed-again palatability on the basis of the mortality, the feed coefficient and the feed-again coefficient;Choose two urban communities as the control and the experiment group. Given the control and the experiment group 0.005% bromadilone and integrated control respectively, Investigating and comparing the rodent density before and after giving the control though powder tracking.Results1. The predominant species include Rattus andersoni, Mus musculus and Rattus flavipectus. The rodent density exceeds1 % ( rodent cassettes ) and 3%( powder tracking ) in the urban community. There were more than half of the respondent saw mice in their houses; the rodent destroyed even their clothes. There were 85.79% of the respondent saw mice in their communities. There were 90.11% of the respondent saw litters around their houses. The questionnaire reveals that only one control method is used in community, the equipments that prevent rodent damage are destroyed.2. The percentage of the killed effect of mice and rats are 100% in the group of 0.005% bromadiolone, while are 100% and 91.67% in the group of 0.0375% coumatetralyl; both the killed effect and the crest-time of death are no significant differences between them(P>0.05).