This disclosure features herbicidal compositions comprising one or more indole auxins such as indole-3-acetic acid, indole-3-butyric acid or indole-3-propanoic acid, or an agriculturally suitable salt thereof and one or more chelating agents such as an aminopolycarboxylic acid, an aromatic or aliphatic carboxylic acid, an amino acid, an ether polycarboxylic acid, a phosphonic acid or a hydroxycarboxylic acid for use in controlling unwanted vegetation.
