FIELD: agriculture.
SUBSTANCE: invention relates to a herbicide composition containing a synergically herbicidal effective amount of (a) penoxulam or a salt thereof acceptable for agriculture, and (b) mephenacete or a salt thereof acceptable for agriculture. The weight ratio of (a) to (b) is from 1: 400 to less than 1:30. The invention relates to a method of combating undesirable vegetation in rice culture, which includes applying penoxulam or a salt thereof acceptable for agriculture and mephenacete or a salt thereof acceptable for agriculture on vegetation, or a plot neighbouring with the vegetation, or on ground or water.
EFFECT: preventing vegetation occurrence or growth.
26 cl, 4 tbl, 1 ex
