Herbicidal composition with increased herbicidal efficacy
First Claim
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1. 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.
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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.
152 Citations
18 Claims
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1. A selective herbicide composition comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 14, 15, 18)
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10. An emulsion-forming broadleaf herbicide concentrate comprising:
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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; andwhen 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. - View Dependent Claims (11, 12, 13, 16, 17)
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Specification