就大区而言，水灾后，老鼠数量将有所下降，但局部未淹区域，如堤坝、山丘，地势较高的农户或居民家中老鼠数量将猛增，形成家鼠与马鼠混生，人群与鼠群同居的状况。因此，灾后要生态、生物、物理、化学四法并举，加强鼠害防治。以下推荐使用两类灭鼠剂。第一类，抗凝血性灭鼠 In the case of large areas, the number of mice will drop after the floods, but the number of mice in some undocumented areas such as dams and hills, farmers or residents with higher terrain will soar, forming a mixture of house mouse and horse mouse, The situation of cohabitation between the population and the rodent. Therefore, after the disaster, ecological, biological, physical and chemical methods should be used simultaneously to enhance the prevention and control of rodent pests. Two types of rodenticides are recommended below. The first category, anticoagulant rodent control