前言 杂草防治是柑桔生产中的一项重要栽培措施。自古以来,人们通过中耕锄草或割草等方法来控制杂草的繁衍。随着科学技术的发展,约在本世纪初开始用化学药品进行选择性地防治杂草,到了四十年代中期发现了2.4—D,嗣后经过继续不懈的努力,已试制成许多除草剂。据报导,美国佛罗里达 Introduction Weed control is an important cultivation measure in citrus production. Since ancient times, weeds have been controlled by cultivating weeds or mowing them. With the development of science and technology, we started selective seeding of weeds with chemicals at the beginning of this century. By the mid-1940s, 2.4-D was discovered. Subsequent attempts to make weeds have resulted in the continuous trial of many herbicides. According to reports, the United States, Florida