Compositions comprising pyridine carboxylate herbicides and azole carboxylate safeners
Inventors
Satchivi, Norbert M. • Kister, Jeremy
Assignees
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Publication Number
US-12376590-B2
Publication Date
2025-08-05
Expiration Date
Abstract
Disclosed herein are safened compositions comprising (a) a pyridine carboxylate herbicide or an agriculturally acceptable N-oxide, salt or ester thereof and (b) an azole carboxylate safener or agriculturally acceptable salt or ester thereof. Also disclosed herein are methods of controlling undesirable vegetation, comprising applying to vegetation or an area adjacent the vegetation or applying in soil or water to control the emergence or growth of vegetation (a) a pyridine carboxylate herbicide or an agriculturally acceptable N-oxide, salt or ester thereof and (b) an azole carboxylate safener or agriculturally acceptable salt or ester thereof.
Core Innovation
The invention relates to safened compositions for vegetation control that include a pyridine carboxylate herbicide and an azole carboxylate safener. The pyridine carboxylate herbicide is defined by Formula (I) in which R1 is propargyl, R2 and R2′ are hydrogen, and R3, R3′, R3″, and R3‴ are hydrogen, or an agriculturally acceptable salt thereof. The composition defines a herbicide:safener weight ratio from about 1:5 to about 5:1.
The azole carboxylate safener component is selected from azole carboxylate safeners including fenchlorazole, flurazole, furilazole, isoxadifen, and mefenpyr, together with agriculturally acceptable salt or ester forms and mixtures thereof. The agriculturally acceptable ester of the azole carboxylate safener includes methyl ester, ethyl ester, and diethyl ester, or combinations thereof. The agriculturally acceptable salt is specified with an enumerated list of cations and combinations.
The invention also provides a method of controlling vegetation by applying the safened composition to vegetation or an area adjacent the vegetation, or applying to soil or water to limit emergence or growth of vegetation. The herbicide and safener are applied in amounts including at least 1 g ae/ha for the herbicide and at least 1 g ai/ha for the azole carboxylate safener, with the herbicide:safener weight ratio maintained from about 1:5 to about 5:1.
Claims Coverage
The document provides two independent claims. Both independent claims center on a safened combination of a specific pyridine carboxylate herbicide (Formula (I) with R1=propargyl and the remaining substituents hydrogen) and an azole carboxylate safener, with a defined herbicide:safener weight ratio from about 1:5 to about 5:1.
Safened composition with pyridine carboxylate herbicide and azole carboxylate safener ratio
A safened composition comprising a pyridine carboxylate herbicide defined by Formula (I) wherein R1 is propargyl, R2 and R2′ are hydrogen, R3, R3′, R3″, and R3‴ are hydrogen, or an agriculturally acceptable salt thereof; and an azole carboxylate safener or an agriculturally acceptable salt or ester thereof, wherein the weight ratio of the pyridine carboxylate herbicide to the azole carboxylate safener is from about 1:5 to about 5:1.
Vegetation control method using safened composition with minimum application amounts and defined ratio
A method of controlling vegetation, comprising applying to vegetation or an area adjacent the vegetation or applying to soil or water to limit the emergence or growth of vegetation a safened composition comprising the pyridine carboxylate herbicide defined by Formula (I) and an azole carboxylate safener or an agriculturally acceptable salt or ester thereof, wherein the herbicide is applied in an amount of at least 1 g ae/ha, wherein the azole carboxylate safener is applied in an amount of at least 1 g ai/ha, and wherein the weight ratio of the pyridine carboxylate herbicide to the azole carboxylate safener is from about 1:5 to about 5:1.
Across the independent claims, the core inventive coverage is the combination of the specified pyridine carboxylate herbicide with an azole carboxylate safener, together with a defined herbicide:safener weight ratio of about 1:5 to about 5:1. The method claim further requires minimum application amounts for the herbicide and safener.
Stated Advantages
Reduced crop phytotoxicity while controlling undesirable vegetation.
Efficacy against various undesirable vegetation is retained in the safened compositions.
Documented Applications
Controlling vegetation by applying the safened composition to vegetation or an area adjacent the vegetation, or applying to soil or water to limit emergence or growth of vegetation.
Use in crop/weed contexts including cereals and broadleaf crops.
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