苍蝇为四害之一,解放以来,在党的英明领导下充分发动了群众,以除四害为中心的爱国卫生运动在全国轰轰烈烈的开展以来,已取得了巨大的成绩。各地创造出许多有效的灭蝇方法,并出现很多的无蝇城市和乡村,为了彻底消灭苍蝇,寻找一种经济而效果高的并能节 Flies are one of the four harms. Since the liberation, the masses have been mobilized under the wise leadership of the party. The patriotic health campaign centered on the removal of the four evils has made tremendous achievements since its vigorous nationwide launch. Many effective methods of flies and insects have been created around the country, and many fly-free cities and villages have emerged. In order to eliminate the flies altogether, find an economical and effective alternative