HERBICIDAL COMPOSITION COMPRISING A MIXTURE OF A FIRST HERBICIDE AND PINOXADEN

摘要

The invention provides a herbicidal composition comprising a mixture of: (a) a first herbicide being a synthetic auxin herbicide (e.g. dicamba, MCPA or 2,4-D) or an acetolactate synthase (ALS) inhibitor herbicide (e.g. triasulfuron, tribenuron-methyl, iodosulfuron-methyl, mesosulfuron-methyl, sulfosulfuron, flupyrsulfuron-methyl, or pyroxsulam); wherein the first herbicide is present in the form of an aluminium sa wherein the first herbicide is sufficiently acidic, when in a salt-free form, to allow the formation of an aluminium salt thereof; and wherein the first herbicide, when in a salt-free form or when in a non-aluminium salt form, antagonises the herbicidal activity of pinoxaden; and (b) pinoxaden. A further aspect of the invention also provides a method of reducing the antagonistic effect on the control of monocotyledonous weeds in non-oat cereals which is shown by a herbicidal mixture of either a synthetic auxin herbicide with pinoxaden or an ALS inhibitor herbicide with pinoxaden, which comprises applying a herbicidal composition according to the invention. The presence of the first herbicide in the form of an aluminium salt is thought to mitigate the antagonism of the grass-weed-herbicidal activity of pinoxaden which might otherwise occur.