| abstract |
The present invention provides novel herbicides that exhibit significant herbicidal activity against undesired plants. The pyridazinone-based compound represented by the general formula (I) or its salt, (in the formula, X is -O-, -S-, -SO-, -SO 2 - or -N(Y)-; Q is a Monocyclic aryl group with Z substituent group, monocyclic heteroaryl group with Z substituent group, etc.; Y is hydrogen atom or alkyl group; Z is halogen, alkyl group, etc.; R 1 is alkyl group, alkenyl group, etc. ; R 2 is a hydrogen atom, an alkyl group, etc.; R 3 is a halogen, a hydroxyl group, etc.; R 4 is a hydrogen atom, an alkyl group, etc.; n is an integer from 0 to 4). |