Pyrazole derivatives of the general formula (I) or salts thereof,
wherein each symbols are as defined in the specification,
herbicides containing the above compounds as active ingredients, and aromatic carboxylic acid derivatives or salts thereof suitable as intermediates for the production of the above pyrazole derivatives.
The above pyrazole derivatives or salts thereof, provided by the present invention, cause no phytotoxicity on upland field crops such as corn, etc., and can selectively control a broad range of upland weeds such as grass weeds and broad-leaved weeds at a low dosage in pre-emergence treatment and in post-emergence treatment.
通式(I)的
吡唑衍
生物或其盐类、
其中各符号如说明书中所定义、
含有上述化合物作为活性成分的
除草剂,以及适用于生产上述
吡唑衍
生物的
中间体的芳香族
羧酸衍
生物或其盐。
本发明提供的上述
吡唑衍
生物或其盐类对玉米等陆地大田作物无植物毒性,在萌芽前处理和萌芽后处理中,以较小的剂量就可以选择性地控制多种陆地杂草,如禾本科杂草和阔叶杂草。