Locusts plague was one of the three natural disasters in the history of China.From 1949 to 1956,the Central and local governments attached great importance to the prevention and control of locusts plague.They mobilized the public extensively and actively promoted the use of medical equipments and aircrafts to control locusts,renovated the ecological environment of locusts plague regions,thus effectively controlled this historic disaster.The prevention and control of locusts plague was one of the important tasks of the Party and government in de...