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US 9,801,369 B2Granted
Herbicidal composition with increased herbicidal efficacy
AssigneeSuncor Energy Inc.
InventorsMichael Fefer, Jun Liu
Life of this patent
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Abstract
An herbicide composition available as a concentrate for dilution with water or a ready-to-use oil-in-water emulsion which has a significantly reduced amount of active ingredient of a broadleaf herbicide. The composition combines the reduced amount of herbicide in a mixture of oil and emulsifier.
Claims18
A selective herbicide composition comprising:
- an effective amount of an auxin mimic-type broadleaf herbicide in salt form, wherein the effective amount is from about 10% to about 50% of a prescribed label application rate;
- wherein the herbicide comprises 2,4-dichlorophenoxyacetic acid in the form of a salt, 2-(2-methyl-4-chlorophenoxy)propionic acid in the form of a salt, and 3,6-dichloro-o-anisic acid in the form of a salt;
- a paraffinic oil;
- an emulsifier;
- and
- water;
- wherein:
- the weight ratio of paraffinic oil to emulsifier is from about 95:5 to about 50:50;
- the selective herbicide composition demonstrates herbicidal efficacy;
- and when the herbicide, paraffinic oil, and emulsifier collectively comprise from about 10% to about 20% by weight of the composition, the composition is non-phytotoxic to turfgrass.
7 more elements
An emulsion-forming broadleaf herbicide concentrate comprising:
- an effective amount of an auxin mimic-type broadleaf herbicide in salt form, wherein the effective amount is from about 10% to about 50% of a prescribed label rate;
- wherein the herbicide comprises 2,4-dichlorophenoxyacetic acid in the form of a salt, 2-(2-methyl-4-chlorophenoxy)propionic acid in the form of a salt, and 3,6-dichloro-o-anisic acid in the form of a salt;
- a paraffinic oil;
- and
- an emulsifier;
- wherein:
- the weight ratio of paraffinic oil to emulsifier is from about 95:5 to about 50:50;
- and
- when the herbicide concentrate is diluted in water sufficient to dilute the combined herbicide, paraffinic oil, and emulsifier to from about 10 wt % to about 20 wt % to form an herbicidal composition, the herbicidal composition demonstrates herbicidal efficacy and is non-phytotoxic to turfgrass.
6 more elements
Dependencies are inferred from the claim text.