This paper deals with the control effect, the control cost per hectare, the ratio of investment cost and produce benefit of aerially controlling forest pests by Haiyan ultralight plane in contrast with other methods.

• 本文研究报道了“海燕”超轻型飞机同其它防治法防治森林害虫的防治效果、每公顷平均防治成本及投入产出比。