| 摘要 |
PURPOSE:To obtain an excellent herbicide by combining a sulfonylurea derivative with S,S-dimethyl 2-(difluoromethyl)-4-(2-methylpropyl)-6-(trifluoromethyl)-3,5- pyridinedicarbothioate. CONSTITUTION:The objective herbicide composition is produced by compounding a compound of formula I [Q is group of formula II [R3 is (halogenerated) alkyl or halogen], formula III or formula IV (R4 is H, alkyl, halogen, alkoxy, alkylthio, etc.); R1 and R2 are alkyl or alkoxy] or its salt (e.g., the compound of formula V) with S,S-dimethyl 2-(difluoromethyl)-4-(2- methylpropyl)-6-(trifluoromethyl)3,5-pyridinedicarbothioate. The amount of the compound of formula I is preferably about 0.1-50 pts.wt. per 1 pt.wt. of the latter compound. All kinds of weeds can be exterminated by single application of the agent. It has high safety to paddy rice plant. |
