关键词: 环境防治, 综合防治, 孳生率, 相关密度指数, 防治率, 特殊行业

Abstract: In three year on-the-sport investigation on extensive flyfree work has been made in JiLin municipality. Environmental prevention and control were taken as the main radical measures. The measures included that(1)the old urban rubbish grounds were transformed into residental quarters and three largescale rubbish grounds in outer suburbs were newly built, therefore, the problem of garbage disposal was solved; (2) the garbage was transported away without delay, daily disposal was accompolished: (3) outer environment was brought into control in order to eliminate the breeding grounds of flies: (4) preventive work was strengthened through improving techniques in some special trades prone to the breeding of flies: (5)suitable insecticides and their reliable forms were chosen to delay or reduce the drug-resistance of flies, so as to wipe out them more efficiently. Simutaneously, some other steps such as the artificial extermination of adult flies, the poisioningand trapping ap-pgliance and the high-temprature ferment farmyard manure to destroy the maggots were also taken. Through all the above measures, the breeding rate of flies reduced 88.89%, and the density of flies in the peak season of breeding decreased 89.89%. There is a highly remarkable difference between the harnessed areas and the non-harnessed areas comparatively. The desired results were achieved, and the fly-free standard for advanced municipality stipulated by The National Patriotic Health Campain committee was realized. Through the fly-free measures getting up to, the standard, remarkable social and economic benefits were attained.