日本新研究发现,将一种植物激素喷洒到作物上能够驱除害虫,而另外一种植物激素则能吸引害虫。在农作物和周边植物上配合使用两者,有望不依赖化学农药来保护作物。日本理化学研究所和东京大学等机构的研究小组发现,给园艺花卉洋金花的幼苗喷洒一次茉莉酸后,两周后平均每两株洋金花上只有一只蓟马,只有未喷洒茉莉酸的幼苗的约四分之一。反之,如果 A new study in Japan found that spraying a plant hormone on crops can repel pests, while another plant hormone can attract pests. It is expected that chemical pesticides will not be used to protect crops in combination with crops and the surrounding plants. The research team of the Japan Institute of Chemistry and Chemical Engineering and the University of Tokyo found that after spraying jasmonic acid once a day for seedlings of horticultural flowers of Camellia japonica, only one thrips was present in each of two flowers of Camellia on average after two weeks, and only jasmonic acid About a quarter of the seedlings. On the contrary, if