一、试验方法:设六个小区。1—3小区将3％呋喃丹颗粒剂配成30倍、速50倍、75倍药液喷雾。4小区按每亩3斤用药量,兑水200斤注根部。5小区用40％乐果乳剂1,000倍液喷雾。6小区为不用药对照。以上均按每亩150斤药量标准喷雾。小区面积30米~2,8月12日于大豆初花期用药,24小时后检查蚜虫死亡率。 First, the test method: Set six communities. 1-3 plot 3% carbofuran granule dubbed 30 times, 50 times faster, 75 times liquid spray. 4 plots 3 acres per mu dose, watered 200 pounds note root. 5 plot with 40% dimethoate emulsion 1,000 times spray. 6 cells for non-medication control. The above are 150 kg per mu dose standard spray. Cell area of ​​30 m ~ 2, August 12 in early flowering soybean medication, check the aphid mortality after 24 hours.