飞机喷洒苏特灵Bt生物杀虫剂防治松毛虫试验

Prevention experiments on pine caterpillars of spraying Bt biotic pesticides by plane

利用运 11型飞机喷洒苏特灵Bt生物杀虫剂防治松毛虫的试验研究 ,筛选出适宜的剂量、喷洒时间和喷雾方式 ,为大面积生产防治提供可靠数据。试验结果表明 ,采用低容量喷雾 ,用药量750g/hm2 ,喷洒时间 198s ,杀虫率可达 93.4 % ,是大面积防治松毛虫经济、有效、理想的选择。

In this paper, prevention pine caterpillars experiments are carried out by using transportation plane 11 to spray Bt biotic pesticides, and the suitable dosage, spraying time and modes are selected out, it provides reliable data for prevention over an extensive area in production. The results show that insect mortality may reach 93.4% by using low-capacity spray which the quantity of pesticide is 750g·hm -2 and spraying time is 198s, so it is an economical, effective and optimum selection for prevention pine caterpillars over an extensive area.