论文部分内容阅读
利用飞机来防治害虫的事业起源于第一次世界大战之后,1919年加拿大开始应用飞机探测森林虫灾面积的大小和蚊虫发源地的面积。美国于同年利用气球与飞机来协助红铃虫的防治工作。苏联于1922年开始发展航空治虫事
The use of aircraft to control pests began in World War I. In 1919, Canada began to use aircraft to detect the size of forest pests and the area of mosquito breeding sites. In the same year, the United States used balloons and aircraft to assist in the prevention and control of pink bollworm. The Soviet Union in 1922 began to develop aviation pest control