用有杀虫作用的植物防治果木害虫,成本低、无污染、操作简便,效果较好。下面介绍几种常用的杀虫植物和用法:△用洋葱防治红蜘蛛和蚜虫类害虫。取洋葱鳞茎片200克,浸渍于10公斤温水中泡4—5天,过滤,每隔5天喷洒一次,连喷三次。△用西红柿茎叶防治鳞翅目幼虫和蜂幼虫。取无病虫害新鲜西红柿茎叶4公斤,加水10公斤,用 Insecticidal effect of plants with pests control fruit trees, low cost, non-polluting, easy to operate, the effect is better. The following describes several commonly used insecticidal plants and usage: △ with onions to control spider mites and aphids. Take 200 grams of onion bulbs, immersed in 10 kg of warm water soak 4-5 days, filtered, spray once every 5 days, and even spray three times. △ tomato stems and leves against Lepidoptera larvae and bee larvae. Take pest-free fresh tomato stems and leaves 4 kg, add water 10 kg, with