麦圆红蜘蛛Penthaleus major Dug.在我区局部常有大发生,82—83年有些田块虫株率达100％,单株虫数最多达324头,严重影响小麦生长发育,使有效分蘖减少,成穗率降低4—8％。 本试验选以螨口密度较大的鄂麦六号田作基地,以国产40％乐果、25型武汉洗衣粉、20％三氯杀螨砜可湿粉、20％三氯杀螨醇乳 Occurred in our region often occur in large parts of the area, 82-83 years, some of the field pest strain rate of 100%, the number of up to 324 single plant worms, seriously affecting the growth and development of wheat, the effective tiller reduction , Into the ear rate reduced 4-8%. This test selected mites mouth density Emai 6 field base, with 40% dimethoate, 25 Wuhan washing powder, 20% dicofol wettable powder, 20% dicofol emulsion