【摘 要】
：
一些植物有着神奇的灭虫能力,如万寿菊就是一种极好的天然灭虫药。万寿菊原产墨西哥,我国各地都有栽培,它那刺鼻的气味是一种奇妙的驱虫药。在花圃四周种上万寿菊,整个夏季,
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一些植物有着神奇的灭虫能力,如万寿菊就是一种极好的天然灭虫药。万寿菊原产墨西哥,我国各地都有栽培,它那刺鼻的气味是一种奇妙的驱虫药。在花圃四周种上万寿菊,整个夏季,它都可以充当障壁。山楂花、桑椹、肉桂和丁香,都能使昆虫头晕目眩。从楝树中分离出的苦楝素,是理想的杀虫剂。它能阻止害虫接触植物,害虫一旦接触便会绝食而亡。日本研究人员发现,有的害虫宁肯饿死也不敢去吃经楝树素处理过的作物。人们将楝树种子粉末撒在
Some plants have magical pest control capabilities, such as marigolds that are an excellent natural exterminator. Marigold native to Mexico, all over China have cultivated, its pungent smell is a wonderful insect repellent. Planting marigolds around the flower nursery can serve as a barrier throughout the summer. Hawthorn flowers, mulberries, cinnamon, and cloves all make dizzy insects. Toosendanin isolated from the neem tree is an ideal insecticide. It stops pests from touching plants and pests kill when hunted. Japanese researchers found that some pests prefer to starve to eat neem-treated crops. People will neem seed powder sprinkled in
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