Pyrazole derivatives of the general formula (I) or salts thereof, ##STR1## 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,##STR1## 其中每个符号如规范中定义的那样,含有上述化合物作为活性成分的
除草剂,以及适用于上述
吡唑衍
生物生产的芳香
羧酸衍
生物或其盐作为中间体。本发明提供的上述
吡唑衍
生物或其盐对玉米等旱地作物没有植物毒性,并且可以在低剂量下选择性地控制广泛范围的旱地杂草,如草本杂草和阔叶杂草,在出苗前处理和出苗后处理中。