摘要:
The present invention relates to a substituted phenyl(or pyridyl)urea compound and a herbicidal composition containing the substituted phenyl(or pyridyl)urea compound as an active ingredient.The compound has the formula: ##STR1## wherein A represents an alkylene group; B represents a nitrogen atom or CH; R represents a hydrogen atom, a lower alkyl group or a lower alkoxy group;R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represent a hydrogen atom or a methyl group; and n is 0 or 1.