论文部分内容阅读
鼠类给工农业生产、人民的健康和生活带来的危害是巨大的。据估计,世界每年因鼠害损失的粮食有5000万吨之多,够1.5亿人一年的口粮。1982年安徽省因鼠害损失的粮食达20亿斤。鼠类还盗食树籽,毁坏幼苗咬断树根,常造成4~8%的树木枯死。上海某工厂因鼠窜入高压开关造成短路,停电停产,损失一千多万元;北京地铁也多次因鼠害造成停电事故。一些地方由老鼠传播的疾病也有所上升。最近,中央负
Rams to industrial and agricultural production, people’s health and life-threatening harm is enormous. It is estimated that there are 50 million tons of grain lost each year in the world due to rodent pests and enough to feed 150 million people a year. In 1982, Anhui Province lost 2 billion kilograms of food due to rodent pests. Rodents also steal food seeds, seedlings destroyed bite off roots, often resulting in 4 to 8% of the trees dead. Shanghai factory due to rat fleeing into a high-voltage switch caused by a short circuit, power cut-off, the loss of more than 10 million yuan; Beijing Subway also caused a blackout due to rodent. In some parts of the world, the spread of diseases by mice has also risen. Recently, the central negative