WO2022194371A1 - Compositions herbicides de fluroxypyr - Google Patents

Compositions herbicides de fluroxypyr Download PDF

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Publication number
WO2022194371A1
WO2022194371A1 PCT/EP2021/056863 EP2021056863W WO2022194371A1 WO 2022194371 A1 WO2022194371 A1 WO 2022194371A1 EP 2021056863 W EP2021056863 W EP 2021056863W WO 2022194371 A1 WO2022194371 A1 WO 2022194371A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluroxypyr
undesirable vegetation
ester
emergence
emulsifiers
Prior art date
Application number
PCT/EP2021/056863
Other languages
English (en)
Inventor
Stefaan Reybrouck
Kerim SCHELLINGEN
Original Assignee
Globachem Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Globachem Nv filed Critical Globachem Nv
Priority to PCT/EP2021/056863 priority Critical patent/WO2022194371A1/fr
Priority to EP21712816.4A priority patent/EP4307890A1/fr
Publication of WO2022194371A1 publication Critical patent/WO2022194371A1/fr

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/34Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
    • A01N43/40Biocides, 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
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N25/00Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/02Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents

Definitions

  • the present invention relates to stable compositions comprising fluroxypyr and use of such compositions for combating unwanted vegetation in crop plants.
  • Fluroxypyr is the ISO common name for 4-amino-3,5-dichloro-6-fluoro-2-pyridyloxyacetic acid (lUPAC).
  • EP 2 154 964 discloses high-strength emulsifiable concentrate of fluroxypyr meptyl ester prepared by using an N-alkanoyl morpholine solvent.
  • EP 2 034 836 discloses fluroxypyr ester in an N,N-dimethyl (C6-C12) alkylamide solvent.
  • EP 0 647096 discloses esters of fluroxypyr.
  • Fluroxypyr is an effective herbicide. Fluroxypyr meptyl ester is typically formulated as emulsifiable concentrates at concentrations of 180- or 200-grams acid equivalent per liter in aromatic hydrocarbon solvents.
  • the present invention addresses these needs and provides a wide variety of benefits and advantages, such as high strength formulations of fluroxypyr which exhibit chemical and physical stability at broad temperature range.
  • the present invention provides a high-strength herbicidal formulation comprising: a) fluroxypyr or its agriculturally acceptable salts and esters, wherein the formulation comprises from about 300 g/L to about 600 g/L of fluroxypyr; b) an emulsifier or mixture of emulsifiers from about 100 g/L to about 300 g/L; c) solvent naphtha from about 200 g/L to about 500 g/L; and d) co-solvent dimethyl sulfoxide (DMSO) from 50 g/L to 250 g/L.
  • DMSO dimethyl sulfoxide
  • the present invention is directed to high-strength herbicidal formulations containing fluroxypyr and/or an agriculturally acceptable salt or ester thereof, in particular fluroxypyr meptyl ester, but other esters of fluroxypyr may be suitable according to this invention such as, but not limited to, 2-butoxy-1-5 methylethyl, 2-butoxyethyl, butyl, 2-methylpropyl, 2- ethylhexyl and 1-decyl esters.
  • the emulsifiers according to the present invention can be anionic, cationic or non-ionic in character.
  • Emulsifiers conventionally used in the art of formulation and which may also be used in the present formulations are described, for example, in "McCutcheon's Detergents and Emulsifiers Annual", MC Publishing Corp., Ridgewood, New Jersey, 1998 and in “Encyclopedia of Surfactants", Vol. 1-111 , Chemical publishing Co., New York, 1980-81.
  • Typical emulsifiers include salts of alkyl sulfates, such as diethanolammonium lauryl sulfate; alkylarylsulfonate salts, such as calcium dodecylbenzenesulfonate; alkyl and/or arylalkylphenolalkylene oxide addition products, such as nonylphenolC-is ethoxylate; alcohol-alkylene oxide addition products, such as tridecyl alcohol-Ci 6 ethoxylate; soaps, such as sodium stearate; alkylnaphthalenesulfonate salts, such as sodium dibutylnaphthalenesulfonate; dialkyl esters of sulfosuccinate salts, such as sodium di(2- ethylhexyl) sulfosuccinate; sorbitol esters, such as sorbitol oleate; quaternary amines, such as lauryl trimethylammonium chlor
  • emulsifier or mixture of emulsifiers is usually present at a concentration of from about 100 g/L to about 300 g/L.
  • the solvent which typically makes up the remainder of the high-strength herbicidal formulation, is naphtha present at concentration from about 200 g/L to about 500 g/l, more preferably from about 200 g/L to about 400 g/L.
  • Co-solvent dimethyl sulfoxide is typically present from 50 g/L to 250 g/L.
  • high-strength herbicidal formulation comprises: a) fluroxypyr meptyl ester, in concentration from about 500 to about 600 g/L; b) an emulsifier or mixture of emulsifiers from about 100 g/L to about 200 g/L; c) solvent naphtha from about 200 g/L to about 400 g/L; d) co-solvent dimethyl sulfoxide (DMSO) from 100 g/L to 200 g/L.
  • the high-strength, herbicidal formulation does not exhibit separation or precipitation (or crystallization) of any of the components at low temperatures.
  • the high-strength formulation remains a clear solution at temperatures below about 10°C, more preferably at temperatures about 0°C, even after seeding the formulation with a crystal of the active ingredient.
  • compositions can further comprise one or more agriculturally acceptable adjuvant or auxiliary.
  • An adjuvant or an auxiliary in the context of the present invention is a component which enhances the performance effect of the formulation.
  • adjuvants and auxiliaries are agents which promote one or more of the following effects: retention, spreading, attachment to the leaf/crop surface, penetration, physical, chemical, technical and/or biological effect, etc.
  • compositions as described above additionally comprising at least one auxiliary component selected from the group comprising of herbicides, emulsifiers, solvents, surfactants, carriers, dispersants, thickeners, anti foaming agents and/or other auxiliaries.
  • auxiliary component selected from the group comprising of herbicides, emulsifiers, solvents, surfactants, carriers, dispersants, thickeners, anti foaming agents and/or other auxiliaries.
  • compositions of the present invention are diluted with water prior to being applied.
  • a method of controlling undesirable vegetation in crops which comprises contacting the undesirable vegetation or the locus thereof with or applying to the soil to prevent the emergence or growth of undesirable vegetation a composition according to the present invention.
  • undesirable vegetation is selected from broad leaves weeds such as Solanum nigrum, Gallium aparine and Stellaria media.
  • undesirable vegetation is controlled in rice, wheat, barley, triticale, oats, rye, sorghum, corn, maize, pastures, grasslands, rangelands, fallowland, turf, tree and vine orchards.
  • compositions according to the present invention can be applied pre emergence, or post-emergence.
  • a high-strength formulation was prepared containing 400 g/L of fluroxypyr (acid equivalent per liter) by dissolving 588 g/L fluroxypyr meptyl ester into 278 g/L Solvesso 150 ND, 100 g/L of emulsifier blend consisting of Ca dodecylbenzene sulfonic acid and an ethoxylated alcohol and 125 g/L DMSO was added.
  • Formulations according to the present invention in particular the formulation with DMSO addition according to Table 1 , was also tested in the field trial in corn (Zea mays) to confirm the efficacy as well as the absence of negative effects.
  • BBCH stage of the triticale at the time of application of treatment was 32 and BBCH stage of target weeds was: - for cleavers ( Gallium aparine) 31.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Toxicology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

L'invention concerne des compositions herbicides stables comprenant du fluroxypyr.
PCT/EP2021/056863 2021-03-17 2021-03-17 Compositions herbicides de fluroxypyr WO2022194371A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP2021/056863 WO2022194371A1 (fr) 2021-03-17 2021-03-17 Compositions herbicides de fluroxypyr
EP21712816.4A EP4307890A1 (fr) 2021-03-17 2021-03-17 Compositions herbicides de fluroxypyr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2021/056863 WO2022194371A1 (fr) 2021-03-17 2021-03-17 Compositions herbicides de fluroxypyr

Publications (1)

Publication Number Publication Date
WO2022194371A1 true WO2022194371A1 (fr) 2022-09-22

Family

ID=74947439

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/056863 WO2022194371A1 (fr) 2021-03-17 2021-03-17 Compositions herbicides de fluroxypyr

Country Status (2)

Country Link
EP (1) EP4307890A1 (fr)
WO (1) WO2022194371A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0647096A1 (fr) 1993-04-23 1995-04-12 Dowelanco Compositions agricoles contenant des esters liquides de fluroxypyr
EP2034836A2 (fr) 2006-06-29 2009-03-18 Dow AgroSciences LLC Formulations herbicides d'esters de fluroxypyr à résistance élevée, stables aux basses températures
CN101595875A (zh) * 2009-07-10 2009-12-09 赵邦斌 氟草烟·氰氟草酯复配除草剂
EP2154964A1 (fr) 2007-08-22 2010-02-24 Dow AgroSciences LLC Formules herbicides à haute concentration d'ester de meptyl fluroxypyr, stables à basse température
CN101961023B (zh) * 2010-10-12 2013-04-24 北京颖泰嘉和生物科技有限公司 一种除草剂组合物及其应用
CN101971841B (zh) * 2010-05-24 2013-07-31 北京颖泰嘉和生物科技有限公司 一种除草剂组合物及其应用

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0647096A1 (fr) 1993-04-23 1995-04-12 Dowelanco Compositions agricoles contenant des esters liquides de fluroxypyr
EP2034836A2 (fr) 2006-06-29 2009-03-18 Dow AgroSciences LLC Formulations herbicides d'esters de fluroxypyr à résistance élevée, stables aux basses températures
EP2154964A1 (fr) 2007-08-22 2010-02-24 Dow AgroSciences LLC Formules herbicides à haute concentration d'ester de meptyl fluroxypyr, stables à basse température
CN101595875A (zh) * 2009-07-10 2009-12-09 赵邦斌 氟草烟·氰氟草酯复配除草剂
CN101971841B (zh) * 2010-05-24 2013-07-31 北京颖泰嘉和生物科技有限公司 一种除草剂组合物及其应用
CN101961023B (zh) * 2010-10-12 2013-04-24 北京颖泰嘉和生物科技有限公司 一种除草剂组合物及其应用

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Encyclopedia of Surfactants", vol. 1-111, 1980, CHEMICAL PUBLISHING CO.
"McCutcheon's Detergents and Emulsifiers Annual", 1998, MC PUBLISHING CORP.

Also Published As

Publication number Publication date
EP4307890A1 (fr) 2024-01-24

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