| abstract |
(57) [Summary] [Objective] The present invention shows an excellent effect on annual and perennial weeds and broad-leaved weeds, and in particular, has an extremely low dose and is excellent for annual weeds. A picolinic acid derivative having the above-mentioned effects and having high safety against crops such as corn is also provided. [Structure] General formula [Chemical formula 1] (In the formula, X 1 represents an N, N-disubstituted amino group, R 9 represents a hydrogen atom or an alkyl group, and R 1 and R 2 represent an alkoxy group). A herbicide containing these salts as an active ingredient. |