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US 12,740,566 B2Granted
Enhanced herbicidal compositions of transition metal chelates
AssigneeW. Neudorff GmbH KG
InventorsReinhard Arndt, Andreas Prokop, George Puritch, Chandanie W. Arachchige, Deepal Samarajeewa
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Abstract
The present invention relates to herbicidal compositions comprising a transition metal chelate; and a potassium-containing salt and/or a sodium-containing salt; wherein said composition has enhanced herbicidal activity when compared with an otherwise identical composition lacking said potassium-containing salt and/or said sodium-containing salt; as well as related methods and uses.
Claims20
A method for selectively controlling the growth of undesired vegetation, said method comprising:
- a. providing a ready-to-use (RTU) composition comprising an iron chelate comprising a complex of iron and a chelating agent, wherein the iron chelate is present at a concentration of at least 1% by weight, and a salt at a concentration of 1% to 25.0% by weight;
- wherein the salt is selected from the group consisting of potassium chloride, potassium sulfate, potassium citrate, sodium chloride, sodium sulfate and combinations thereof;
- and
- b. contacting an area of vegetation and/or the ground in which said vegetation is present with said ready-to-use composition at a rate in the range of 0.2 g Fe/m2 to 2.0 g Fe/m2;
- wherein, following said contacting step, undesired vegetation present in said area of vegetation and/or ground is destroyed while growth of desired vegetation present in said area of vegetation and/or ground is relatively unharmed;
- said undesired vegetation is selected from the group consisting of dandelions, false dandelions, white clover, daisies, chickweed, black medick, mosses, liverworts, ferns, horsetails, conifers, dicotyledonous plants, algae and combinations thereof;
- and
- said desired vegetation is selected from the group consisting of grass, lawn, pastureland and combinations thereof.
5 more elements
A selective ready-to-use (RTU) herbicidal composition comprising:
- an iron aminopolycarboxylate chelate, comprising a complex of iron and an aminopolycarboxylate chelating agent, wherein the iron aminopolycarboxylate chelate is present at a concentration of at least 3% by weight;
- and
- a salt, present at a concentration of 1% to 25.0% by weight,
- wherein the salt is selected from the group consisting of potassium chloride, potassium sulfate, potassium citrate, sodium chloride, sodium sulfate and combinations thereof;
- wherein said composition has enhanced selective herbicidal activity when applied at a rate in the range of 0.2 g Fe/m2 to 2.0 g Fe/m2 to an area of vegetation and/or ground in which said vegetation is present containing desired vegetation and undesired vegetation when compared with an otherwise identical composition lacking said salt;
- said undesired vegetation is selected from the group consisting of dandelions, false dandelions, white clover, daisies, chickweed, black medick, mosses, liverworts, ferns, horsetails, conifers, dicotyledonous plants, algae and combinations thereof;
- said desired vegetation is selected from the group consisting of grass, lawn, pastureland and combinations thereof;
- and
- the herbicidal composition is formulated as a dry granule comprising the iron aminopolycarboxylate chelate and the salt.
6 more elements
A selective ready-to-use (RTU) herbicidal composition comprising:
- a transition metal aminopolycarboxylate chelate, comprising a complex of a transition metal and an aminopolycarboxylate chelating agent, wherein the transition metal aminopolycarboxylate chelate is present at a concentration of at least 3% by weight;
- and
- a salt, present at a concentration of 1% to 25.0% by weight,
- wherein the salt is selected from the group consisting of potassium chloride, potassium sulfate, potassium citrate, sodium chloride, sodium sulfate and combinations thereof;
- wherein said composition has enhanced selective herbicidal activity when applied at a rate in the range of 0.2 g transition metal/m2 to 2.0 g transition metal/m2 to an area of vegetation and/or ground in which said vegetation is present containing desired vegetation and undesired vegetation when compared with an otherwise identical composition lacking said salt;
- said undesired vegetation is selected from the group consisting of dandelions, false dandelions, white clover, daisies, chickweed, black medick, mosses, liverworts, ferns, horsetails, conifers, dicotyledonous plants, algae and combinations thereof;
- said desired vegetation is selected from the group consisting of grass, lawn, pastureland and combinations thereof;
- the herbicidal composition is formulated as a dry granule comprising the transition metal aminopolycarboxylate chelate and the salt, and
- the transition metal is selected from the group consisting of copper, manganese, nickel and zinc.
6 more elements
Dependencies are inferred from the claim text.