Herbicidal mixtures

An aqueous herbicidal concentrate composition comprising:

• a glufosinate component comprising the ammonium salt of glufosinate, wherein the concentration of the glufosinate component on an acid equivalence basis is at least about 5 wt. %;
• an auxin herbicide component comprising a salt of dicamba selected from the group consisting of the monoethanolamine salt, tetrabutylamine salt, dimethylamine salt, isopropylamine salt, diglycolamine salt, potassium salt, sodium salt, and combinations thereof, wherein the concentration of the auxin herbicide on an acid equivalence basis is at least about 5 wt. %;
• a monocarboxylic acid and/or salt thereof selected from the group consisting of formic acid, acetic acid, propionic acid, benzoic acid, mixtures thereof, and/or salts thereof, wherein the concentration of the monocarboxylic acid and/or salt thereof is at least about 3 wt. %;
• and
• a surfactant component comprising at least one surfactant selected from the group consisting of amidoalkylamines, alkoxylated alcohols, alkoxylated alkylamines, and combinations thereof, wherein the total concentration of the surfactant component is at least about 1 wt. %, and wherein the total herbicide concentration of the composition is at least about 15 wt. %.

A method of controlling the growth of unwanted plants, the method comprising:

• preparing an aqueous herbicidal application mixture by diluting with water an herbicidal concentrate composition;
• and
• applying an herbicidally effective amount of the application mixture to the unwanted plants, wherein the aqueous herbicidal concentrate composition comprises:
• a glufosinate component comprising the ammonium salt of glufosinate, wherein the concentration of the glufosinate component on an acid equivalence basis is at least about 5 wt. %;
• an auxin herbicide component comprising a salt of dicamba selected from the group consisting of the monoethanolamine salt, tetrabutylamine salt, dimethylamine salt, isopropylamine salt, diglycolamine salt, potassium salt, sodium salt, and combinations thereof, wherein the concentration of the auxin herbicide on an acid equivalence basis is at least about 5 wt. %;
• a monocarboxylic acid and/or salt thereof selected from the group consisting of formic acid, acetic acid, propionic acid, benzoic acid, mixtures thereof, and/or salts thereof, wherein the concentration of the monocarboxylic acid and/or salt thereof is at least about 3 wt. %;
• and
• a surfactant component comprising at least one surfactant selected from the group consisting of amidoalkylamines, alkoxylated alcohols, alkoxylated alkylamines, alkoxylated phosphate esters, and combinations thereof, wherein the total concentration of the surfactant component is at least about 1 wt. %, and wherein the total herbicide concentration of the composition is at least about 15 wt. %.