A herbicide containing an optical isomer of R-form of a diphenyl ether derivative represented by formula (I), which has a more excellent herbicidal activity with a smaller dose thereof than one containing the corresponding racemate. The use of the compound of formula (I) together with various herbicides known per se serves to improve the fast-acting property and widen the herbicidal spectrum with a small dose.
一种
除草剂,含有由式(I)表示的
二苯醚衍
生物的 R-形式光学异构体,与含有相应外消旋物的
除草剂相比,用较小剂量即可获得更优异的除草活性。将式(I)化合物与各种本身已知的
除草剂一起使用,可提高速效性,并以较小的剂量扩大除草谱。