20%螨必净EC室内外试验研究

利用棉红蜘蛛为试验材料，筛选出以三氯杀螨醇（ｄｉｃｏｆｏｌ）和敌敌畏（ｄｉｃｈｌｏｒｖｏｓ）为主成分的螨必净乳油配方。田间试验表明，以１０５０ｍＬ／ｈｍ＾２的螨必净ＥＣ防治棉红蜘蛛，７ｄ后其校正防效高达９５％以上，与标准药剂三氯杀螨醇相当，但成本降低，作用谱扩大，环境相容性也有较大改善。

Study on 20% Manbijing EC in Laboratory and Field

Manbijing mixtures, of which the major components are dicofol and dichlorvos, were screened with cotton leafmites. Field experiments showed that the pesticide activity of Manbijing (1050 mL/hm 2) was still higher than 95% 7 d after treated on cotton leafmites, which was equivalent to the standard pesticide dicofol. However, the use of Manbijing reduced the cost, widened the spectrum of insecticidal activity and greatly improved environmental compatibility.