The present invention relates to the field of agrochemical compositions and formulations. In particular, the present invention provides a composition comprising glyphosate and at least one taurate salt. The glyphosate and at least one taurate salt of the present invention can be advantageously mixed with the triazolinone herbicide and one or more aromatic solvent to produce compositions that are chemically and physically stable. The present invention is also directed to methods of making and using such compositions.
Glyphosate is an herbicide used to control and eradicate perennial weeds. It is sprayed in a diluted solution and metabolized by the weed, killing it. The first products on the market containing glyphosate were the Roundup lines. Now, several other brands market products containing glyphosate as an ingredient. Glyphosate products are used in both residential gardens and commercial agriculture. Some new crops have been genetically modified to be resistant to glyphosate so that it can be used to kill weeds without killing the cash crop itself. Glyphosates kills a wide variety of plant life including grasses, leafy and wood bearing plants and is found in herbicide products in varying amounts from 100-grams to over 600-grams per liter. Glysophate products come in either concentrated form designed to be mixed with water or pre-mixed for direct application.
To enable the efficient elimination or controlling of unwanted plants in agriculture and related endeavors, it is desirable to use effective chemical herbicides on these unwanted plants. Compositions containing multiple herbicides are desirable in agricultural and related endeavors due to broadening the spectrum or range of unwanted plant species killed or controlled and varying the onset of visual symptomology.
Due to the desirability of having a composition with the above mentioned properties, the combination of a triazolinone herbicide and glyphosate manufacturer has been disclosed in, for example, U.S. Pat. No. 5,935,905, U.S. Pat. No. 5,125,958, U.S. Pat. No. 6,127,318, PCT Publication WO 00/78139, PCT Publication WO 02/063955 and PCT Publication WO 01/70024. The combination of a triazolinone herbicide and glyphosate salt has been thought to exhibit a herbicidal effect against a very broad spectrum of unwanted plant species and a triazolinone herbicide is known to have fast onset of herbicidal activity as seen from visual symptomology, while glyphosate salt is considered to be slower with onset occurring just after typical triazolinone herbicides. This has the potential to be a very effective combination. However, a problem in the art of formulating the triazolinone herbicide and glyphosate salt mixture is in successfully achieving both chemical and physical stability in the composition over significant periods of time.
In general, a relatively small amount of the triazolinone herbicide has been used in conjunction with glyphosate. Chemical stability is most important in this type of composition to ensure the small amount of the triazolinone herbicide is fully effective. Typically, less than one percent is used commercially to keep the cost of the composition low, while still yielding spectrum and onset of visual symptomology benefits. Examples of problematic chemical degradation include hydrolysis, oxidation, dehalogenation and bond cleavage. The chemical and physical stability of a glyphosate and triazolinone herbicide composition is a key objective in the art.
Wear garden gloves and face mask to handle glyphosate products. Determine the dilution measurements according to the directions on the packaging of your particular product.
Pour measured glyphosate product and water into a spray bottle or pump sprayer. Close the lid securely and swirl repeatedly to combine the mixture.
Spray the glyphosate solution directly onto the weeds and any other plants that you wish to eradicate. Do not soak the surrounding soil with solution as it may impair your ability to replant the area.
The present invention provides new herbicide compositions that have superior chemical and physical stability, broad herbicidal spectrum effects and very good balance of onset of visual symptomology.
Specifically, the present invention is directed to a composition comprising glyphosate and at least one taurate salt. This composition can further comprise: (i) a water-immiscible phase comprising a triazolinone herbicide and one or more aromatic solvents with (ii) an aqueous phase comprising the glyphosate and an emulsifier comprising the at least one taurate salt. The triazolinone herbicide and glyphosate can be present, at least collectively, in a herbicidally effective amount.
The present invention is also directed to methods of making and using the compositions of the present invention.
source:townhall|glyphosate
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