楝树油把楝树种子（ｎｅｅｍｓｅｅｄ）提取的油象雨衣一样复盖在植物叶子上时，可以阻止那些会引起植物病变的霉菌。霉菌孢子是通过风或飞溅的雨点来传播的，如果抱子不能附着在叶子上，发芽，并渗透叶细胞，它们就不会引起病变了。科研人员就此进行了多次试验。它们把含... Neem oil, when neemseed oil is covered like a raincoat over the leaves of plants, stops the molds that cause plant disease. Mold spores are spread by wind or splashing raindrops and they do not cause lesions if they can not attach to leaves, germinate, and penetrate leaf cells. Researchers conducted several tests in this regard. They contain ...