Compositions and methods to reduce dicamba volatility and provide plant essential nutrients
Inventors
Norsworthy, Jason Keith • Roberts, Trenton
Assignees
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Publication Number
US-12022827-B2
Publication Date
2024-07-02
Expiration Date
Abstract
Compositions and methods to reduce herbicide volatility and provide plant essential nutrients are provided. The composition comprises an effective amount of acidic herbicide, such as dicamba, and an effective amount of borate, where the effective amount of the borate reduces the volatility of the acidic herbicide and wherein the pH of the composition is greater than 5.
Core Innovation
The invention relates to aqueous herbicide compositions that include an effective amount of an acidic herbicide, an effective amount of a borate, and an aqueous solvent. The borate is a potassium borate salt, and the effective amount of potassium borate is less than 30 grams per liter. The composition has a pH greater than 5, and the borate reduces the volatility of the acidic herbicide.
In particular, the acidic herbicide comprises a dimethlyamine (DMA) dicamba salt or a diglycolamine (DGA) dicamba salt. The composition further comprises a second herbicide comprising glyphosate or glufosinate. The borate provides a pH above 5 while reducing the volatility of the dicamba-containing acidic herbicide in the aqueous formulation.
The disclosed compositions and methods also relate to reducing volatility-driven off-target injury of acidic herbicides by raising tank-mix pH to greater than 5. The borate formulation is described as scavenging H+ and buffering to maintain and/or boost spray pH, and as being able to reduce injury and lateral movement compared with volatility reducers and potassium acetate baselines in low tunnel field trials.
Claims Coverage
Independent claim clm-00001 covers an aqueous composition with three core inventive elements: an acidic herbicide with a specific dicamba salt form, a potassium borate salt in a constrained amount that reduces volatility, and a pH greater than 5 while optionally including a second herbicide comprising glyphosate or glufosinate.
Aqueous acidic-herbicide plus potassium borate volatility reducer at pH greater than 5
A composition comprising an effective amount of an acidic herbicide, an effective amount of a borate, and an aqueous solvent, wherein the borate is a potassium borate salt, wherein the effective amount of the borate reduces the volatility of the acidic herbicide, wherein the effective amount of potassium borate is less than 30 grams per liter, and wherein the pH of the composition is greater than 5.
Dicamba DMA or DGA salt with glyphosate or glufosinate as second herbicide
The composition wherein the herbicide comprises a dimethlyamine (DMA) dicamba salt or a diglycolamine (DGA) dicamba salt and a second herbicide comprising glyphosate or glufosinate.
The claim set centers on an aqueous composition that uses a potassium borate salt in an amount of less than 30 grams per liter to reduce the volatility of an acidic dicamba-containing herbicide while maintaining a composition pH greater than 5, and optionally includes glyphosate or glufosinate as a second herbicide.
Stated Advantages
Reduces the volatility of the acidic herbicide.
Maintains a composition pH greater than 5.
Reduces volatility-driven off-target injury and lateral movement compared with comparison formulations described in the provided summary.
Can reduce crop injury compared with a second composition containing potassium acetate under the comparison characterization described.
Documented Applications
No documented applications found
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