Herbicidal composition comprising oxadiazolo- or thiadiazolo-[3,4a]-pyridazine derivatives, an N-alkylpyrrolidone, and organic solvent

摘要

A composition comprising a condensed heterocyclic derivative and an N-alkyl-2-pyrrolidone and another organic solvent for enhanced stability. Particularly high effects can be obtained with a composition wherein the ratio of the condensed heterocyclic derivative to the N-alkyl-2-pyrrolidone is within a range of from 2:1 to 1:1000.