呋喃丹具有良好的内吸传导作用,常于播种时施用,能防治多种苗期害虫;但有的用量太大,成本高。我们于1981年在怀德县刘房子公社,试验降低用量,改沟施为穴施,使药剂集中发挥作用,得到了初步结果。 试验区:每小区二垅,200株(穴),于4月27日播种,每公顷施用3％呋喃丹颗粒 Carbofuran has a good internal absorption and conduction, often applied at the time of planting, can control a variety of seedling pests; but some amount is too large, the cost is high. We were in 1981 in Liu County, White County commune, to reduce the amount of test, change ditch facilities for the hole, the agent to play a central role, and obtained preliminary results. Test area: two 每 per plot, 200 (Acupoint), sown on April 27, 3% carbofuran granules per hectare