用某些植物的浸出液防治果树害虫效果好将某些植物的浸出液喷洒在果树上，可防治果树害虫。该法成本低，无污染，效果好。现介绍几种常用的植物浸出液及其用法。１、蒲公英浸出液：取蒲公英４００克鲜叶或３００克鲜根捣碎，放入１０公斤温水（不超过４０℃）中浸渍１一２... With certain plant leachate control fruit pests good effect Some plants leachate sprayed on the fruit trees, can prevent fruit pests. The method of low cost, pollution-free, effective. Now introduce several commonly used plant leachate and its usage. 1, dandelion leaching solution: take dandelion 400 grams of fresh leaves or 300 grams of fresh roots mashed, put 10 kg warm water (not more than 40 ℃) in the dipping 1 a 2 ...