而现代合成杀虫剂的发明在一定程度上结束了尼古丁的使命。
But Cedric Briens of the University of Western Ontario is thinking of reviving it, and is alsoasking whether tobacco has any other pesticidal properties that might be exploited by thehard-pressed horticulturalist.
现在,西安大略大学的塞德里克?布里安则又在考虑重新启用尼古丁,同时在设法验证烟草是否还有其他杀虫功能,期望可为饱受病虫害之苦的园艺家所利用。
To find out, Dr Briens and his colleagues at Canada s agriculture ministry ground up driedtobacco leaves using a blender and a sieve.
为此,布里安博士和他在加拿大农业部的同事们用搅拌机和筛子将烟叶碾碎,
They then heated the result in a pressurised, oxygen-free environment to distil out whatthey could in the form of a treacly oil.
然后将碾碎后的烟叶在高压、无氧环境下加热,提取出一种以粘稠油状存在的物质。
They tested this oil on 11 species of fungus and four types of bacterium that are commonagricultural problems.
他们用这种油对农业中常见的11种真菌和4种杆菌,
They also tried it on the larvae of Colorado beetles, a notorious pest of potatoes.
以及一种常见的令人闻之生厌的马铃薯害虫科罗拉多甲虫进行了试验。
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