防治山楂叶螨常用药剂的应用研究

The Applied Research of Insecticides for Hawthorn Spider Mite Control

山楂叶螨是苹果园的主要害虫之一.在该螨的药剂防治中如何选择适当的药剂并正确地使用是保证其防治效果的关键。研究结果表明：螨死净的防治效果是为突出．其次为哒螨灵．这两种药剂都可在苹果落花后喷洒；灭扫利、辛硫灭扫利、氰久也有较好效果，中后期使用较为适宜；有机磷类药剂及三氯杀螨醇效果较差，已不宜用于山楂叶螨的防治。

The experiment of ten insecticidcs applicd to control hawthorn spider mite: Tetranychus Viennensis Zacher, which is one of the important pests in apple orchard, was carried out in laboratory and field. The results indicated that the effects of clofentezine were the best, Pyridaben were also excellent, all the two insectieides were suitable for controlling the mite after the flower falling off apple tree. The effects of fenpropathrin phoxim-fenpropathrin monocretophos-fenvelerate were the middle and were suitable for controlling in July and August. The effects of organophotophos insecticides and dicofol were the poor and were not suitable for controlling.