农药重烟剂药效试验

Experiments in Control Effect of Heavy Smoke Agent of Pesticide

本文研究了农药重烟剂防治田间农作物病虫害的可能性，并对应用技术和使用方法进行了探索。试验结果表明，１０％百菌清重烟剂９～１０５ｋｇ／ｈｍ２防治芦笋茎枯病效果达８０％以上；２０％敌敌畏重烟剂９～１０５ｋｇ／ｈｍ２防治小麦蚜虫效果达８０％以上，重烟剂的烟云高度在２ｍ以下，放烟０５ｈ后，烟云逐渐沉降到作物上，达到防病治虫效果。

This paper is a study of heavy smoke agent of pesticide using in field control on plant diseases and insect pests.The study also contained applied technique and relative using methods.Experiments demonstrated that control effect on asparagus stem blight was above 80% when 10% heavy smoke agent-daconil was used with 9～10.5kg/ha.To reach the same result on controlling greenbug,it needs 20% heavy smoke agent-DDVP with 9～10.5kg/ha.Height of heavy smoke agent is below 2 meters.Half an hour after setting off smoke,the heavy substance will gradually drop onto the crop.As a result it can control plant diseases and insect pests.