WO2023017167A1 - Compositions fongicides de metconazole - Google Patents

Compositions fongicides de metconazole Download PDF

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Publication number
WO2023017167A1
WO2023017167A1 PCT/EP2022/072709 EP2022072709W WO2023017167A1 WO 2023017167 A1 WO2023017167 A1 WO 2023017167A1 EP 2022072709 W EP2022072709 W EP 2022072709W WO 2023017167 A1 WO2023017167 A1 WO 2023017167A1
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WO
WIPO (PCT)
Prior art keywords
metconazole
plants
formulation
dimethyl
alkylamide
Prior art date
Application number
PCT/EP2022/072709
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
Publication of WO2023017167A1 publication Critical patent/WO2023017167A1/fr

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01PBIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P3/00Fungicides
    • 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
    • A01N43/64Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
    • A01N43/647Triazoles; Hydrogenated triazoles
    • A01N43/6531,2,4-Triazoles; Hydrogenated 1,2,4-triazoles

Definitions

  • the present invention relates to stable compositions comprising metconazole and use of such compositions in methods of the growth of plants, as well as in methods for controlling, preventing and/or treating of phytopathogenic fungi in crop plants.
  • Metconazole is a triazole fungicide, ISO common name for (1 RS,5RS; 1 RS,5SR)-5-(4-chlorobenzyl)-2,2-dimethyl-1-(1 H-1 ,2,4-triazol-1 - ylmethyl)cyclopentanol.
  • Metconazole is an effective fungicide and is typically formulated as emulsifiable concentrate at concentrations of 60 g/L and 90 g/L.
  • Higher strength (higher load or higher concentration) formulations are desirable for various environmental and economic reasons, such as reduction of packaging and solvents released into environment.
  • higher strength formulations are challenging due to chemical and/or physical instability of active ingredient, such as agglomeration, crystallization, phase separation and gelling.
  • Desirable requirements for higher strength formulations are storage stability and potency retention, stability at various temperatures and homogeneity and no precipitation at lower temperatures.
  • a major limitation of the emulsifiable concentrate of metconazole is its limited stability at low temperature and high concentration.
  • the present invention addresses these needs and provides a wide variety of benefits and advantages, such as high strength formulations of metconazole which exhibit chemical and physical stability at broad temperature range.
  • fungicidally effective amount means the relative amount that is effective to inhibit or control fungus growth rate, increase mortality, or eradicate the fungus when the fungicidal composition is applied to the target fungus at a given application rate.
  • the term “about” when used in connection with numeric values, parameters or numerical ranges such as amounts, volumes, volume ratios, volume percentages, weight ratios, weight percentages, or application rates of ingredients of a composition means an amount, a volume, a volume ratio, a volume percentage, a weight ratio, a weight percentage, or an application rate that is recognized by those of ordinary skill in the art to provide a desired effect equivalent to that obtained from the specified amount, volume, volume ratios, volume percentages, weight ratio, weight percentage, or application rate, is encompassed herein and should be construed in light of the number of reported significant digits and applying ordinary rounding techniques.
  • range from 1 to 10 includes all sub-ranges between and including the recited minimal value 1 and the recited maximum value 10 and any value in-between, including any and all decimal values.
  • composition comprises at least one active ingredient and at least one auxiliary agent.
  • an "active ingredient” is a compound which directly exerts a biologically relevant effect, preferably a pesticidal effect as described herein.
  • auxiliary agent refers to a compound or combination of compounds which do not exert a biologically relevant effect of their own but support the effects of the active ingredient(s). When auxiliary agents are used, their choice will depend on the active ingredients and on the procedures selected for the treatment.
  • One aspect of the present invention is to provide compositions as described above additionally comprising at least one auxiliary component selected from the group comprising of emulsifiers, solvents, surfactants, carriers, dispersants, thickeners, hydrophobizing agents, moisture-retaining agents, extenders, solid carriers, anti-foaming agents and/or other auxiliaries.
  • compositions of the present invention can be formulated into any customary type of agrochemical compositions, e. g. solutions, emulsions, suspensions, dusts, powders, pastes, granules, pressings, capsules, and mixtures thereof.
  • Composition types examples are suspensions (e.g. SC, OD, FS), emulsifiable concentrates (e.g. EC), emulsions (e.g. EW, EO, ES, ME), capsules (e.g. CS, ZC), pastes, pastilles, wettable powders or dusts (e.g. WP, SP, WS, DP), pressings (e.g. BR, TB), granules (e.g. WG, SG, GR), etc.
  • suspensions e.g. SC, OD, FS
  • emulsifiable concentrates e.g. EC
  • emulsions e.g. EW, EO, ES, ME
  • capsules e.g. CS, ZC
  • pastes e.g. WP, SP, WS, DP
  • pressings e.g. BR, TB
  • granules e.g. WG,
  • composition and “formulation” are used interchangeably throughout the text and are meant as having the same meaning.
  • the present invention is directed to high-strength fungicidal formulations containing metconazole.
  • the present invention provides a high-strength fungicidal formulation comprising: a) metconazole, wherein the formulation comprises from about 100 g/L to about 450 g/L of metconazole; b) an emulsifier or mixture of emulsifiers from about 50 g/L to about 300 g/L: c) solvent N,N-dimethyl (Ce-Ci2)alkylamide from about 200 g/L to about 700 g/L.
  • 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 nonylphenolCis ethoxylate; alcohol-alkylene oxide addition products, such as tridecyl alcohol-Cie 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 chloride;
  • emulsifier or mixture of emulsifiers is usually present at a concentration of from about 50 g/L to about 300 g/L.
  • the solvent which typically makes up the remainder of the high-strength fungicidal formulation, is N,N-dimethyl (C6-Ci2)alkylamide present at concentration from about 200 g/L to about 700 g/l, more preferably from about 400 g/L to about 600 g/L.
  • high-strength fungicidal formulation comprises: a) metconazole in concentration from about 200 to about 400 g/L b) an emulsifier or mixture of emulsifiers from about 50 g/L to about 200 g/L; c) solvent N,N-dimethyl (C6-Ci2)alkylamide from about 400 g/L to about 600 g/L.
  • the high-strength, fungicidal formulation does not exhibit separation or precipitation (or crystallization) of any of the components at low or high temperatures.
  • the high-strength formulation remains a clear solution at temperatures below about 10°C, more preferably at temperatures about 0°C.
  • 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.
  • One aspect of the present invention is to provide compositions as described above additionally comprising at least one auxiliary component selected from the group comprising of fungicides, 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.
  • phytopathogenic fungi are selected from Septoria, Mildew, fungi causing brown rust or yellow rust, Fusarium, Rhynchosporium, Botrytis, Phoma, Alternaria, Sclerotinia and Pyrenopeziza.
  • crops or plants are selected from sunflower, maize, sorghum, soybeans, oilseed rape, cereals, sugar beets, peas and other leguminosae, winter and spring wheat, durum wheat, winter and spring barley, triticale, rye, peas, field beans, sugar beet, lupins, grassland, ornamentals, golf courses and lawns.
  • a high-strength formulation was prepared containing 270 g/L of metconazole by dissolving 270 g/L metconazole into 600 g/L N,N-dimethyldecanamide under gentle heating to 40°C and stirring until metconazole is completely dissolved.
  • 106 g/L of emulsifier EO-PO block copolymer blend under stirring and slow cooling down of the formulation.
  • the prepared formulation remained stable with appearance unchanged after post-accelerated storage for two weeks at 54°C ⁇ 2°C.
  • Formulation according to Example 1 was also tested in the field trial in wheat against Puccinia to confirm the efficacy as well as the absence of negative effects.
  • FL-1 , FL-2, FL-n, etc. - means flag leaf minus 1 , flag leaf minus 2, flag leaf minus n, wherein leaf-n is the oldest leaf on the plant (first emerged) FLAGLE - means flag leaf
  • Formulation applied in the treatment was prepared by dilution with water of formulation according to Example 1 to predetermined concentration according to the table below.
  • Obtained results show pest severity as percentage (%) of leaf that has disease for the row in the table marked as UNTREATED, wherein control of the disease is shown as percentage (%) of control in rows wherein treatments were applied.

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

Abstract

L'invention concerne des compositions fongicides stables comprenant du metconazole.
PCT/EP2022/072709 2021-08-13 2022-08-12 Compositions fongicides de metconazole WO2023017167A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP21191211.8 2021-08-13
EP21191211 2021-08-13

Publications (1)

Publication Number Publication Date
WO2023017167A1 true WO2023017167A1 (fr) 2023-02-16

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0453899A1 (fr) * 1990-04-27 1991-10-30 Bayer Ag Utilisation de diméthyl-amides alkylcarboxyliques comme inhibiteurs de cristallisation
EP1023837A2 (fr) * 1999-01-29 2000-08-02 American Cyanamid Company Concentré émulsifiable non aqueux
WO2008069822A1 (fr) * 2006-02-21 2008-06-12 Phibro-Tech Inc. Concentrés d'émulsions d'azoles biocides ayant une teneur en ingrédient actif élevée
JP2016145177A (ja) * 2015-02-09 2016-08-12 株式会社クレハ 農園芸用乳剤およびその調製方法
WO2021099350A1 (fr) * 2019-11-18 2021-05-27 Life Scientific Ltd Composition comprenant des fongicides de type azole et des amides d'acides gras

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0453899A1 (fr) * 1990-04-27 1991-10-30 Bayer Ag Utilisation de diméthyl-amides alkylcarboxyliques comme inhibiteurs de cristallisation
EP1023837A2 (fr) * 1999-01-29 2000-08-02 American Cyanamid Company Concentré émulsifiable non aqueux
WO2008069822A1 (fr) * 2006-02-21 2008-06-12 Phibro-Tech Inc. Concentrés d'émulsions d'azoles biocides ayant une teneur en ingrédient actif élevée
JP2016145177A (ja) * 2015-02-09 2016-08-12 株式会社クレハ 農園芸用乳剤およびその調製方法
WO2021099350A1 (fr) * 2019-11-18 2021-05-27 Life Scientific Ltd Composition comprenant des fongicides de type azole et des amides d'acides gras

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DA SILVA ARDUIM GISELE ET AL: "In vivo sensitivity reduction of Puccinia triticina races, causal agent of wheat leaf rust, to DMI and QoI fungicides", SUMMA PHYTOPATHOLOGICA, vol. 38, no. 4, 1 January 2012 (2012-01-01), pages 306 - 311, XP055977647, Retrieved from the Internet <URL:https://www.scielo.br/j/sp/a/88tWCq64RhYYLYFgLhzbXcR/?format=pdf&lang=en> *

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