WO2024030947A1 - The use of florpyrauxifen-benzyl as a soybean harvest aid - Google Patents
The use of florpyrauxifen-benzyl as a soybean harvest aid Download PDFInfo
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- WO2024030947A1 WO2024030947A1 PCT/US2023/071498 US2023071498W WO2024030947A1 WO 2024030947 A1 WO2024030947 A1 WO 2024030947A1 US 2023071498 W US2023071498 W US 2023071498W WO 2024030947 A1 WO2024030947 A1 WO 2024030947A1
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- Prior art keywords
- florpyrauxifen
- benzyl
- soybean
- harvest
- days
- Prior art date
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- 244000068988 Glycine max Species 0.000 title claims abstract description 49
- 235000010469 Glycine max Nutrition 0.000 title claims abstract description 30
- WNZCDFOXYNRBRB-UHFFFAOYSA-N florpyrauxifen-benzyl Chemical group COC1=C(Cl)C=CC(C=2C(=C(N)C(Cl)=C(C(=O)OCC=3C=CC=CC=3)N=2)F)=C1F WNZCDFOXYNRBRB-UHFFFAOYSA-N 0.000 title claims abstract description 24
- YZHUMGUJCQRKBT-UHFFFAOYSA-M sodium chlorate Chemical compound [Na+].[O-]Cl(=O)=O YZHUMGUJCQRKBT-UHFFFAOYSA-M 0.000 title description 4
- 238000012794 pre-harvesting Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000004009 herbicide Substances 0.000 claims description 12
- 230000035613 defoliation Effects 0.000 claims description 9
- 230000002363 herbicidal effect Effects 0.000 claims description 3
- 239000003112 inhibitor Substances 0.000 claims 5
- 108010020183 3-phosphoshikimate 1-carboxyvinyltransferase Proteins 0.000 claims 1
- 108010060806 Photosystem II Protein Complex Proteins 0.000 claims 1
- 101100339555 Zymoseptoria tritici HPPD gene Proteins 0.000 claims 1
- 229940121373 acetyl-coa carboxylase inhibitor Drugs 0.000 claims 1
- XFZUQTKDBCOXPP-UHFFFAOYSA-N florpyrauxifen Chemical compound COC1=C(Cl)C=CC(C=2C(=C(N)C(Cl)=C(C(O)=O)N=2)F)=C1F XFZUQTKDBCOXPP-UHFFFAOYSA-N 0.000 claims 1
- ZDXPYRJPNDTMRX-UHFFFAOYSA-N glutamine Natural products OC(=O)C(N)CCC(N)=O ZDXPYRJPNDTMRX-UHFFFAOYSA-N 0.000 claims 1
- 238000003306 harvesting Methods 0.000 description 12
- FIKAKWIAUPDISJ-UHFFFAOYSA-L paraquat dichloride Chemical compound [Cl-].[Cl-].C1=C[N+](C)=CC=C1C1=CC=[N+](C)C=C1 FIKAKWIAUPDISJ-UHFFFAOYSA-L 0.000 description 8
- 239000005630 Diquat Substances 0.000 description 7
- 241000196324 Embryophyta Species 0.000 description 7
- SYJFEGQWDCRVNX-UHFFFAOYSA-N diquat Chemical compound C1=CC=[N+]2CC[N+]3=CC=CC=C3C2=C1 SYJFEGQWDCRVNX-UHFFFAOYSA-N 0.000 description 7
- ZBMRKNMTMPPMMK-UHFFFAOYSA-N 2-amino-4-[hydroxy(methyl)phosphoryl]butanoic acid;azane Chemical compound [NH4+].CP(O)(=O)CCC(N)C([O-])=O ZBMRKNMTMPPMMK-UHFFFAOYSA-N 0.000 description 6
- 239000002274 desiccant Substances 0.000 description 6
- 238000011282 treatment Methods 0.000 description 4
- IAJOBQBIJHVGMQ-UHFFFAOYSA-N 2-amino-4-[hydroxy(methyl)phosphoryl]butanoic acid Chemical compound CP(O)(=O)CCC(N)C(O)=O IAJOBQBIJHVGMQ-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 108020004414 DNA Proteins 0.000 description 2
- 239000005561 Glufosinate Substances 0.000 description 2
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009437 off-target effect Effects 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- QURLONWWPWCPIC-UHFFFAOYSA-N 2-(2-aminoethoxy)ethanol;3,6-dichloro-2-methoxybenzoic acid Chemical compound NCCOCCO.COC1=C(Cl)C=CC(Cl)=C1C(O)=O QURLONWWPWCPIC-UHFFFAOYSA-N 0.000 description 1
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 description 1
- 239000005492 Carfentrazone-ethyl Substances 0.000 description 1
- ZAKOWWREFLAJOT-CEFNRUSXSA-N D-alpha-tocopherylacetate Chemical compound CC(=O)OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C ZAKOWWREFLAJOT-CEFNRUSXSA-N 0.000 description 1
- 241000132444 Geraea canescens Species 0.000 description 1
- 239000004471 Glycine Substances 0.000 description 1
- 108020004511 Recombinant DNA Proteins 0.000 description 1
- 238000010162 Tukey test Methods 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000007059 acute toxicity Effects 0.000 description 1
- 231100000403 acute toxicity Toxicity 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000007665 chronic toxicity Effects 0.000 description 1
- 231100000160 chronic toxicity Toxicity 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 244000038559 crop plants Species 0.000 description 1
- 238000009402 cross-breeding Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- MLKCGVHIFJBRCD-UHFFFAOYSA-N ethyl 2-chloro-3-{2-chloro-5-[4-(difluoromethyl)-3-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl]-4-fluorophenyl}propanoate Chemical group C1=C(Cl)C(CC(Cl)C(=O)OCC)=CC(N2C(N(C(F)F)C(C)=N2)=O)=C1F MLKCGVHIFJBRCD-UHFFFAOYSA-N 0.000 description 1
- 230000002538 fungal effect Effects 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 230000014634 leaf senescence Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002703 mutagenesis Methods 0.000 description 1
- 231100000350 mutagenesis Toxicity 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- GNHDVXLWBQYPJE-UHFFFAOYSA-N saflufenacil Chemical compound C1=C(Cl)C(C(=O)NS(=O)(=O)N(C)C(C)C)=CC(N2C(N(C)C(=CC2=O)C(F)(F)F)=O)=C1F GNHDVXLWBQYPJE-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P21/00—Plant growth regulators
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
Definitions
- Soybeans are among the most important crop plants. Improving their growth conditions is thus an ongoing need.
- Pre-harvest chemical desiccation is a practice widely adopted by soybean growers worldwide. Early soybean harvesting, aided by chemical desiccation, reduces pest damage, fungal damage, and promotes uniform maturation. Pre-harvest chemical desiccators may be applied from 7 to 15 days before an anticipated harvest date. In Brazil, early planting combined with early harvesting - aided by pre-harvest desiccation - allows the planting of a subsequent crop (com) during a better rainfall window.
- Paraquat, diquat, and ammonium-glufosinate are herbicides commonly used for pre-harvest soybean desiccation. However, due its acute and chronic toxicity, paraquat has been banned in many countries. With paraquat prohibited, there are fewer cost-effective preharvest soybean desiccation aids for growers to use.
- florpyrauxifen-benzyl may be used for pre-harvest soybean desiccation.
- applying an effective amount of a florpyrauxifen-benzyl composition 7 - 15 days pre-harvest to soybean plants or parts thereof or to the locus where the soybean plants grow results in effective desiccation.
- a safener may also be applied to soybean plants or parts thereof or to the locus where the soybean plants grow.
- soybean refers both to the plant itself as well as to its harvested product, such as soybean grains or seeds.
- soybean refers to all species of the genus Glycine, including the wild (for example G. soya, G. Canescens, G. tomentelld), as well as the cultivated Glycine max forms.
- soybean also refers to genetically modified soybean plants.
- the term “genetically modified” refers to plants whose genetic material has been modified by the use of recombinant DNA techniques to include an inserted sequence of DNA that is not native to that plant species’ genome or to exhibit a deletion of DNA that was native to that species’ genome, wherein the modifications cannot readily be obtained by cross breeding, mutagenesis or natural recombination.
- Soybean desiccation in combination with earlier planting can facilitate earlier harvest and increase harvest efficiency.
- an early harvest allows the planting of a subsequent crop in a timely manner.
- Early planting combined with desiccation and early harvest can reduce harvest loss and reduce foreign materials (green stems or weeds) that interfere with harvest machinery.
- Desiccants may be applied to soybeans when seeds have reached growth stage of from R6.5 to R8 (Boudreaux, J., and J. Griffin. 2011. Application timing of harvest-aid herbicides affects soybean harvest and yield. Weed Technol. 25:38-43). During these growth stages, total pod weight has reached its maximum and seeds will not gain more dry weight.
- soybean harvest aid desiccants including Paraquat (0.125 - 0.25 lb. /acre, 15 day pre-harvest interval (PHI)), Saflufenacil (1-2 fl oz/acre, 3 day PHI), Sodium Chlorate (6 lb. /acre, 7-10 day PHI), Dicamba diglycolamine (8-32 oz./acre, 7 day PHI), Carfentrazone-ethyl (1.0-1.5 oz./acre, 3 day PHI), Glufosinate ammonium (14 day PHI).
- Paraquat 0.125 - 0.25 lb. /acre, 15 day pre-harvest interval (PHI)
- Saflufenacil 1-2 fl oz/acre, 3 day PHI
- Sodium Chlorate (6 lb. /acre, 7-10 day PHI)
- Dicamba diglycolamine (8-32 oz./acre, 7 day PHI)
- Carfentrazone-ethyl
- florpyrauxifen-benzyl has been discovered to be a soybean desiccant.
- applying an effective amount of a florpyrauxifen-benzyl composition 7 - 15 days pre-harvest to soybean plants or parts thereof or to the locus thereof results in effective desiccation and defoliation.
- a safener may also be applied to soybean plants or parts thereof or to the locus thereof.
- a safener may be applied simultaneously with florpyrauxifen-benzyl or sequentially.
- florpyrauxifen-benzyl is applied at lower rates (in terms of g a.i./ha) than conventional desiccants (such as paraquat, diquat, and glufosinate) it imposes less of a burden on the environment, minimizing undesired off-target effects. Tn addition, florpyrauxifen-benzyl has a PHI of only 10 days, giving growers better harvest timing flexibility than, for example, paraquat.
- Embodiments of the invention comprise applying florpyrauxifen-benzyl to soybean plants or parts thereof or to the locus where the soybean plants grow at rates of from about 2 to about 25 grams of active ingredient per hectare (g a.i./ha); from about 2 to about 5 g a.i./ha; from about 2 to about 7.5 g a.i./ha; from about 2 to about 10 g a.i./ha; from about 2 to about 15 g a.i./ha; from about 2 to about 20 g a.i./ha; from about 5 to about 7.5 g a.i./ha; from about 5 to about 10 g a.i./ha; from about 5 to about 15 g a.i./ha; from about 5 to about 20 g a.i./ha; from about 5 to about 25 g a.i./ha; from about 7.5 to about 10 g a.i/ha; from about 7.5 to about 15 g a.i.
- Embodiments of the invention comprise applying florpyrauxifen-benzyl to soybean plants or parts thereof or to the locus where the soybean plants grow from about 7 to about 15 days preharvest; from about 8 to about 15 days pre-harvest; from about 9 to about 15 days pre-harvest; from about 10 to about 15 days pre-harvest; from about 11 to about 15 days pre-harvest from about 12 to about 15 days pre-harvest; from about 13 to about 15 days pre-harvest; from about 14 to about 15 days pre-harvest.
- Embodiments of the invention comprise applying florpyrauxifen-benzyl to soybean plants or parts thereof or to the locus where the soybean plants grow when the soybean plants are at a growth stage of from about R6 to about R8; from about R6 to about R7.8; from about R6 to about R7.6; from about R6 to about R7.4; from about R6 to about R7.2; from about R6 to about R7.0; from about R6 to about R6.8; from about R6 to about R6.6; from about R6 to about R6.4; from about R6 to about R6.2; from about R6.4 to about R8; from about R6.4 to about R7.8; from about R6.4 to about R7.8; from about R6.4 to about R7.6, from about R6.4 to about R7.4; from about R6.4 to about R7.2; from about R6.4 to about R7.0; from about R6.4 to about R6.8; from about R6.4 to about R6.6.
- Soybean plants were sprayed at the R7.2 soybean growth stage.
- the comparison standards were diquat at 366 g ai/ha and ammonium-glufosinate at 366 g ae/ha.
- Table 1 Percentage of defoliation (raw data) on soybean at 3, 7, and 10 days after application (DAA), for herbicide treatments containing florpyrauxifen-benzyl, ammonium-glufosinate, and diquat.
- florpyrauxifen-benzyl Percentage of defoliation (Abbot’s formula) on soybean at 3, 7, and 10 days after application (DAA), for herbicide treatments containing florpyrauxifen-benzyl, ammonium- glufosinate, and diquat.
- the methods provided herein benefit soybean growers by providing a new harvest-aid for soybean desiccation. Because florpyrauxifen-benzyl is applied at lower rates (in terms of g a.i./ha) than conventional desiccants (such as paraquat, diquat, and glufosinate) it imposes less of a burden on the environment, minimizing undesired off-target effects. In addition, florpyrauxifen-benzyl has a PHI of only 10 days, which gives growers better harvest timing flexibility than, for example, paraquat.
Abstract
A method of using florpyrauxifen-benzyl for pre-harvest soybean desiccation is described.
Description
THE USE OF FLORPYRAUXIFEN-BENZYL AS A SOYBEAN HARVEST AID
Background
Soybeans are among the most important crop plants. Improving their growth conditions is thus an ongoing need.
Pre-harvest chemical desiccation is a practice widely adopted by soybean growers worldwide. Early soybean harvesting, aided by chemical desiccation, reduces pest damage, fungal damage, and promotes uniform maturation. Pre-harvest chemical desiccators may be applied from 7 to 15 days before an anticipated harvest date. In Brazil, early planting combined with early harvesting - aided by pre-harvest desiccation - allows the planting of a subsequent crop (com) during a better rainfall window. Paraquat, diquat, and ammonium-glufosinate are herbicides commonly used for pre-harvest soybean desiccation. However, due its acute and chronic toxicity, paraquat has been banned in many countries. With paraquat prohibited, there are fewer cost-effective preharvest soybean desiccation aids for growers to use.
It has now been found that florpyrauxifen-benzyl may be used for pre-harvest soybean desiccation. In one embodiment, applying an effective amount of a florpyrauxifen-benzyl composition 7 - 15 days pre-harvest to soybean plants or parts thereof or to the locus where the soybean plants grow results in effective desiccation. In certain embodiments a safener may also be applied to soybean plants or parts thereof or to the locus where the soybean plants grow.
Detailed Description
Definitions
As used herein, soybean refers both to the plant itself as well as to its harvested product, such as soybean grains or seeds. As used herein, soybean refers to all species of the genus Glycine, including the wild (for example G. soya, G. Canescens, G. tomentelld), as well as the cultivated Glycine max forms. As used herein, soybean also refers to genetically modified soybean plants.
As used herein, the term “genetically modified” refers to plants whose genetic material has been modified by the use of recombinant DNA techniques to include an inserted sequence of DNA that is not native to that plant species’ genome or to exhibit a deletion of DNA that was native to
that species’ genome, wherein the modifications cannot readily be obtained by cross breeding, mutagenesis or natural recombination.
Soybean desiccation in combination with earlier planting can facilitate earlier harvest and increase harvest efficiency. In addition, an early harvest allows the planting of a subsequent crop in a timely manner. Early planting combined with desiccation and early harvest can reduce harvest loss and reduce foreign materials (green stems or weeds) that interfere with harvest machinery.
The yield advantage of early soybean planting has been documented (see, e.g., Hu, M., and P Wiatrak. 2012. Effect of planting date on soybean growth, yield, and grain quality: review. Agron. J. 104:785-790). However, early planting can lead to increased green stem problems and delayed leaf senescence. The application of desiccants can address these problems, eliminating or reducing green stems and ensuring plant defoliation.
Desiccants may be applied to soybeans when seeds have reached growth stage of from R6.5 to R8 (Boudreaux, J., and J. Griffin. 2011. Application timing of harvest-aid herbicides affects soybean harvest and yield. Weed Technol. 25:38-43). During these growth stages, total pod weight has reached its maximum and seeds will not gain more dry weight.
Various compounds have been employed as soybean harvest aid desiccants including Paraquat (0.125 - 0.25 lb. /acre, 15 day pre-harvest interval (PHI)), Saflufenacil (1-2 fl oz/acre, 3 day PHI), Sodium Chlorate (6 lb. /acre, 7-10 day PHI), Dicamba diglycolamine (8-32 oz./acre, 7 day PHI), Carfentrazone-ethyl (1.0-1.5 oz./acre, 3 day PHI), Glufosinate ammonium (14 day PHI).
Surprisingly, florpyrauxifen-benzyl has been discovered to be a soybean desiccant. In one embodiment, applying an effective amount of a florpyrauxifen-benzyl composition 7 - 15 days pre-harvest to soybean plants or parts thereof or to the locus thereof results in effective desiccation and defoliation. In certain embodiments a safener may also be applied to soybean plants or parts thereof or to the locus thereof. A safener may be applied simultaneously with florpyrauxifen-benzyl or sequentially.
Because florpyrauxifen-benzyl is applied at lower rates (in terms of g a.i./ha) than conventional desiccants (such as paraquat, diquat, and glufosinate) it imposes less of a burden on the
environment, minimizing undesired off-target effects. Tn addition, florpyrauxifen-benzyl has a PHI of only 10 days, giving growers better harvest timing flexibility than, for example, paraquat.
Embodiments of the invention comprise applying florpyrauxifen-benzyl to soybean plants or parts thereof or to the locus where the soybean plants grow at rates of from about 2 to about 25 grams of active ingredient per hectare (g a.i./ha); from about 2 to about 5 g a.i./ha; from about 2 to about 7.5 g a.i./ha; from about 2 to about 10 g a.i./ha; from about 2 to about 15 g a.i./ha; from about 2 to about 20 g a.i./ha; from about 5 to about 7.5 g a.i./ha; from about 5 to about 10 g a.i./ha; from about 5 to about 15 g a.i./ha; from about 5 to about 20 g a.i./ha; from about 5 to about 25 g a.i./ha; from about 7.5 to about 10 g a.i/ha; from about 7.5 to about 15 g a.i./ha; from about 7.5 to about 20 g a.i./ha; from about 7.5 to about 25 g a.i./ha; from about 10 to about 15 g a.i./ha; from about 10 to about 20 g a.i./ha; from about 10 to about 25 g a.i./ha; from about 15 to about 20 g a.i./ha; from about 15 to about 25 g a.i./ha; from about 20 to about 25 g a.i./ha.
Embodiments of the invention comprise applying florpyrauxifen-benzyl to soybean plants or parts thereof or to the locus where the soybean plants grow from about 7 to about 15 days preharvest; from about 8 to about 15 days pre-harvest; from about 9 to about 15 days pre-harvest; from about 10 to about 15 days pre-harvest; from about 11 to about 15 days pre-harvest from about 12 to about 15 days pre-harvest; from about 13 to about 15 days pre-harvest; from about 14 to about 15 days pre-harvest.
Embodiments of the invention comprise applying florpyrauxifen-benzyl to soybean plants or parts thereof or to the locus where the soybean plants grow when the soybean plants are at a growth stage of from about R6 to about R8; from about R6 to about R7.8; from about R6 to about R7.6; from about R6 to about R7.4; from about R6 to about R7.2; from about R6 to about R7.0; from about R6 to about R6.8; from about R6 to about R6.6; from about R6 to about R6.4; from about R6 to about R6.2; from about R6.4 to about R8; from about R6.4 to about R7.8; from about R6.4 to about R7.6, from about R6.4 to about R7.4; from about R6.4 to about R7.2; from about R6.4 to about R7.0; from about R6.4 to about R6.8; from about R6.4 to about R6.6.
Experimental
Field trials were carried out to test the soybean desiccation efficacy of florpyrauxifen-benzyl at
5, 7.5, 10, 15 and 20 g a.i./ha. Soybean plants were sprayed at the R7.2 soybean growth stage.
The comparison standards were diquat at 366 g ai/ha and ammonium-glufosinate at 366 g ae/ha. Herbicides were diluted in water and a single application for each rate (backpack sprayer) was performed employing 100 L/ha of spray solution. The percentage of visual defoliation was assessed at 3, 7 and 10 days after spray application. The significance of treatment effects was evaluated with F-approximate test (a=0.05) and least square means from different treatments were compared with Tukey’s test, after adjusting the % defoliation using Abbott's formula (Abbott, W.S., 1925. A method of computing the effectiveness of an insecticide. J. Econ. Entomol. 18: 265-267). The results demonstrated that the percentage of defoliation - compared to untreated plants - at the rates of 15 and 20 g ai/ah assessed at 3 DAA, were statistically equivalent to ammonium-glufosinate. At 7 DAA the percentage of defoliation was statistically equivalent to both ammonium-glufosinate and diquat.
Table 1. Percentage of defoliation (raw data) on soybean at 3, 7, and 10 days after application (DAA), for herbicide treatments containing florpyrauxifen-benzyl, ammonium-glufosinate, and diquat.
Table 2. Percentage of defoliation (Abbot’s formula) on soybean at 3, 7, and 10 days after application (DAA), for herbicide treatments containing florpyrauxifen-benzyl, ammonium- glufosinate, and diquat.
The methods provided herein benefit soybean growers by providing a new harvest-aid for soybean desiccation. Because florpyrauxifen-benzyl is applied at lower rates (in terms of g a.i./ha) than conventional desiccants (such as paraquat, diquat, and glufosinate) it imposes less of a burden on the environment, minimizing undesired off-target effects. In addition, florpyrauxifen-benzyl has a PHI of only 10 days, which gives growers better harvest timing flexibility than, for example, paraquat.
Claims
1. A method for the desiccation and/or defoliation of soybean plants comprising treating soybean plants or parts thereof or the locus thereof with an effective amount of florpyrauxifen-benzyl.
2. The method of claim 1, wherein the effective amount of the florpyrauxifen-benzyl is from about 2 g a.i/ha to about 25 g a.i.ha.
3. The method of claim 1, wherein the effective amount of the florpyrauxifen benzyl is from about 15 to about 20 g a.i./ha.
4. The method of claim 1, wherein the florpyrauxifen benzyl is applied from 7 to 15 days preharvest.
5. The method of claim 1, wherein the florpyrauxifen-benzyl is applied from 10 to 15 days preharvest.
6. The method of claim 1, wherein the florpyrauxifen is applied when the soybean growth stage is from R6 to about R8.
7. The method of claim 1, wherein the florpyrauxifen-benzyl is applied when the soybean growth stage is from R6.4 to R7.6.
8. The method of claim 1, wherein the soybean plants are herbicide tolerant.
9. The method of claim 8, wherein the soybean plants are tolerant to herbicides selected from ACC inhibitors, ALS inhibitor herbicides, auxinic herbicides, Photosystem II inhibitors, HPPD inhibitor herbicides, EPSP synthase inhibitor herbicides, or glutamine synthase inhibitor herbicides.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202263370505P | 2022-08-05 | 2022-08-05 | |
| US63/370,505 | 2022-08-05 |
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| Publication Number | Publication Date |
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| WO2024030947A1 true WO2024030947A1 (en) | 2024-02-08 |
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| PCT/US2023/071498 WO2024030947A1 (en) | 2022-08-05 | 2023-08-02 | The use of florpyrauxifen-benzyl as a soybean harvest aid |
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| WO2020096926A1 (en) * | 2018-11-07 | 2020-05-14 | Dow Agrosciences Llc | Compositions comprising pyridine carboxylate herbicides with synthetic auxin herbicides or auxin transport inhibitors |
| WO2020164971A1 (en) * | 2019-02-11 | 2020-08-20 | Syngenta Crop Protection Ag | Pre-harvest desiccation method |
| US10779535B2 (en) * | 2017-08-10 | 2020-09-22 | Dow Agrosciences Llc | Herbicidal compositions comprising 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl) pyridine-2-carboxylic acid or a derivative thereof and tembotrione and/or topramezone |
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2023
- 2023-08-02 WO PCT/US2023/071498 patent/WO2024030947A1/en unknown
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| WO2019243100A1 (en) * | 2018-06-20 | 2019-12-26 | BASF Agro B.V. | Herbicidal combination |
| WO2020096926A1 (en) * | 2018-11-07 | 2020-05-14 | Dow Agrosciences Llc | Compositions comprising pyridine carboxylate herbicides with synthetic auxin herbicides or auxin transport inhibitors |
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