杀螨药剂防治苹果红蜘蛛田间药效试验

Field Trial of Pesticides to Apple Red Mites Control

苹果红蜘蛛(以山楂红蜘蛛为主)是山西省苹果树上为害叶片的重要害虫,为了筛选出防效好的无公害药剂,对15%哒螨灵乳油等7种农药进行了田间药剂试验。结果表明,15%哒螨灵乳油杀螨虫效果最佳,25%四螨嗪油杀孵效果最好。因此,施药应根据田间苹果红蜘蛛成螨、若螨、卵不同虫态分布比例状况,选用有效的药剂进行轮换防治。

Apple red mites （ mainly aw thorn spider mites） is an important harmful insect to the apple tree leaves in Shared province. In order to select good effect nuisance free pesticides,experiment in the field with 15% Pyridaben EC and 7 kind of pesticides were conducted. The result shows 15% Pyridaben EC is the most effective in killing mites. The 25% Clofentezine EC has the best effect in killing eggs. So we should choose the insecticide which matches the situation of our own apple trees and the distribution ratio of the mites and eggs in fields.