| abstract |
An object of the invention is to provide herbicides which are completely selective to crops such as paddy rice, soybeans and cotton and have an excellent herbicidal activity on weeds. n The invention relates to ether compounds of the general formula (I)n in which R 1 , R 2 , R 3 and R 4 have the same meanings as defined in the text and herbicides containing said compounds as active components. |