Selective weed control in cereal grain crops
AssigneeHoechst-Roussel Pharmaceuticals Inc.
InventorPaul G. Mayland
Life of this patent
Estimating the term…
Abstract
A method of selectively controlling weeds such as wild oats and foxtail in certain cereal grain crops, such as wheat and barley, is described which comprises applying an effective amount of a composition comprising as effective components suitable proportions of Fenoxaprop-ethyl (namely, (.+-.)ethyl 2-8 4-[(6-chloro-2-benozoxazoly)oxy]phenyl]propanoate),2,4-D(namely, 2,4-dichlorophenoxyacetic acid) and Bromoxynil(namely, 3,5-dibromo-4-hydroxybenzonitrile) or MCPA (namely, 4-chloro-2-methylphenoxyacetic acid). The composition affords an excellent balance between suppression of the phytotoxicity of Fenoxaprop-ethyl and preservation of the herbicidal activity of Fenoxaprop-ethyl, thus accomplishing a selective weed control in certain cereal grain crops.
Claims30
A method of protecting a cereal grain crop plant from a weed which comprises applying to the plants or their environment a composition comprising effective herbicidal and anti-phytotoxic amounts of Fenoxaprop-ethyl, 2,4-D and MCPA, where the proportions of the components based on weights are within the range of Fenoxaprop-ethyl:2,4-D:MCPA=1.0:0.2-5.0:0.3-5.0.
A method of protecting a cereal grain crop plant from a weed which comprises applying to the plants or their environment a composition comprising effective herbicidal and anti-phytotoxic amounts of Fenoxaprop-ethyl, 2,4-D and Bromoxynil, where the proportions of the components based on weights are within the range of Fenoxaprop-ethyl:2,4-D:Bromoxynil=1.0:0.2-5.0:0.3-5.0.
A method of protecting a cereal grain crop plant from a weed which comprises applying to the plants or their environment a composition comprising effective herbicidal and anti-phytotoxic amounts of Fenoxaprop-ethyl, 2,4-D, MCPA and Bromoxynil, where the proportions of the components based on weights are within the range of Fenoxaprop-ethyl:2,4-D:(MCPA+Bromoxynil)=1.0:0.2-5.0:0.3-5.0.
A herbicidal and anti-phytotoxic composition comprising effective herbicidal and anti-phytotoxic amounts of Fenoxaprop-ethyl, 2,4-D and MCPA, where the proportions of the components based on weights are within the range of Fenoxaprop-ethyl:2,4-D:MCPA=1.0:0.2-5.0:0.3-5.0.
A herbicidal and anti-phytotoxic composition comprising effective herbicidal and anti-phytotoxic amounts of Fenoxaprop-ethyl, 2,4-D and Bromoxynil, where the proportions of the components based on weights are within the range of Fenoxaprop-ethyl:2,4-D:Bromoxynil=1.0:0.2-5.0:0.3-5.0.
A herbicidal and anti-phytotoxic composition comprising effective herbicidal and anti-phytotoxic amounts of Fenoxaprop-ethyl, 2,4-D, MCPA and Bromoxynil, where the proportions of the components based on weights are within the range of Fenoxaprop-ethyl:2,4-D:(MCPA+Bromoxynil)=1.0:0.2-5.0:0.3-5.0.
Dependencies are inferred from the claim text.