Herbicidal suspension concentrate

Abstract

A herbicidal suspension concentrate characterized by comprising from 0.5 to 20 parts by weight of at least one compound selected from among sulfonamide compounds represented by the general formula (I). ##STR1## (wherein X is a hydrogen atom, a chloride atom, a bromine atom, a methyl group, or a difluoromethyl group) and their salts as an active ingredient, from 55 to 94.5 parts by weight of a vegetable oil, and from 5 to 25 parts by weight of a surfactant.

What is claimed is: 
     
       1. A herbicidal suspension concentrate characterized by comprising from 0.5 to 20 parts by weight of at least one compound selected from among sulfonamide compounds represented by the general formula (I): ##STR3## wherein X is a hydrogen atom, a chlorine atom, a bromine atom, a methyl group, or a difluoromethyl group and their salts as an active ingredient; from 55 to 94.5 parts by weight of a vegetable oil, and from 5 to 25 parts by weight of a surfactant. 
     
     
       2. A herbicidal suspension concentrate as claimed in claim 1, wherein the vegetable oil is at least one selected from the group consisting of olive oil, kapok oil, castor oil, palm oil, camellia oil, coconut oil, sesame oil, corn oil, rice bran oil, peanut oil, cotton seed oil, soybean oil, rape seed oil, linseed oil and tung oil. 
     
     
       3. A herbicidal suspension concentrate as claimed in claim 1, wherein the weight ratio of the sulfonamide compound represented by the general formula (I) or its salt, the vegetable oil and the surfactant is in the ranges of from 2 to 6:from 77 to 90:from 8 to 17, respectively. 
     
     
       4. A herbicidal suspension concentrate as claimed in claim 1, wherein the suspension concentrate comprises from 0.5 to 20 parts by weight of N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-3-dimethylaminocarbonyl-2-pyridinesulfonamide or its salt, from 55 to 94.5 parts by weight of corn oil, and from 5 to 25 parts by weight of a mixture of surfactants.