EP2416659A1 - Défoliant à base de thidiazurone et de 1, 2, 4-triazinones - Google Patents

Défoliant à base de thidiazurone et de 1, 2, 4-triazinones

Info

Publication number
EP2416659A1
EP2416659A1 EP10711589A EP10711589A EP2416659A1 EP 2416659 A1 EP2416659 A1 EP 2416659A1 EP 10711589 A EP10711589 A EP 10711589A EP 10711589 A EP10711589 A EP 10711589A EP 2416659 A1 EP2416659 A1 EP 2416659A1
Authority
EP
European Patent Office
Prior art keywords
thidiazuron
plants
metribuzin
mixture
water
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP10711589A
Other languages
German (de)
English (en)
Inventor
Udo Bickers
Frank Sixl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer CropScience AG
Original Assignee
Bayer CropScience AG
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 Bayer CropScience AG filed Critical Bayer CropScience AG
Priority to EP10711589A priority Critical patent/EP2416659A1/fr
Publication of EP2416659A1 publication Critical patent/EP2416659A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
    • A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof

Definitions

  • the invention relates to the field of defoliants, in particular thidiazuron-containing mixtures and their use in cotton crops.
  • Thidiazuron has been known for some time as a defoliant, particularly for use in cotton crops (see, eg, "The e-Pesticide Manual,” Version 4.0, 2006-07, or “The Pesticide Manual,” 14th Edition, British Crop Protection Council, Hampshire 2006).
  • (B) one or more compounds from the group of herbicidal 1, 2,4-triazinones.
  • the above mixture may also contain as component (A) the mixture of thidiazuron and diuron.
  • the mixtures according to the invention are particularly suitable for use as defoliants in cotton crops, for example, by a fast and / or increased effect or lower expenditure amounts.
  • defoliant is synonymous with “defoliant” and “desiccant” and also includes the known growth-regulatory effect of thidiazuron and thidiazuron-containing mixtures.
  • thidiazuron and diuron used for component (A) are known and commercially available: thidiazuron and diuron from Bayer Crop Science.
  • the active compounds are described with details of preparation, mixing and handling, for example, in "The Pesticide Manual", 14th Edition (supra) and have the following entry numbers: Thidiazuron 814, Diuron 291.
  • Preferred as component (A) is thidiazuron.
  • the compounds which can be used for component (B) belong to the chemical class of the herbicidal 1, 2,4-triazinones. This group and its effectiveness as Herbicides are known and are described, for example, in "The Pesticide Manual” (see above) Important active substances (ai) from this group are metribuzin and metamitron They are commercially available: metribuzin and metamitron from Bayer CropScience.
  • the active compounds are described with information on preparation, mixing and handling, for example in "The Pesticide Manual” (see above), and have the following entry numbers: Metribuzin 573 and Metamitron 540.
  • Preferred as component (B) are metribuzin and metamitron, particularly preferably metribuzin.
  • the combination of the active ingredients can be used in a conventional manner, for example by spray application of a spray mixture prepared from individual formulations of the active ingredients in the tank mix or a spray mixture prepared by dilution with water from a mixed formulation of the active ingredients.
  • Particularly suitable for the application are those methods which are customary for the application of the individual active ingredients and allow a common application.
  • the application can in principle also be carried out by successive applications of the individual active ingredients (components), wherein the possible time interval can be determined in simple, routine preliminary tests. However, preferred is the common application. If appropriate, the active compounds can also be used in combination with other crop protection agents.
  • the application rate of a single active substance in the combination compared to the amount of effort of the respective single active substance is significantly reduced when used alone.
  • the optimum choice of the weight ratio and the application rates depends, for example, on the developmental stage, on environmental factors and climatic conditions or also on the type of additionally employed pesticide active ingredients and can be quickly determined by the person skilled in the art in simple routine experiments.
  • thidiazuron it is preferably in the range of 10 to 500 g a.i./ha, more preferably 10 to 300 g a.i./ha, most preferably 20 to 200 g a.i./ha, particularly preferably 20 to 150g a.i./ha.
  • the application rate in the general range from 10 to 500 g ai / ha is preferably 15 to 300 g ai / ha, particularly preferably in the range from 20 to 200 g ai / ha. particularly preferably 30 to 200 g ai / ha, in particular 30 to 150 g ai / ha.
  • the application rates for component (B) can vary within wide limits depending on the active ingredient and are generally between 0.1 and 5000 g a.i./ha.
  • component (B) are preferred as the application rate for component (B): 1 to 1000 g a.i./ha, particularly preferably 5 to 500 g a.i./ha.
  • weight ratios of components (A): (B) can vary within wide limits, they are usually between 1: 100 and 100: 1.
  • the approximate ratio (A): (B) is 1: 0.1-10, more preferably 1: 0.5-2.
  • the invention also provides defoliants (defoliants), i. Agent for causing the leaf shedding of plants containing combinations of the active ingredients (A) and (B) and customary formulation auxiliaries (C).
  • defoliants i. Agent for causing the leaf shedding of plants containing combinations of the active ingredients (A) and (B) and customary formulation auxiliaries (C).
  • Formulation options are, for example: wettable powder (WP), water-soluble powders (SP), water-soluble concentrates, emulsifiable concentrates (EC), emulsions (EW), such as oil-in-water and water-in-oil emulsions, sprayable solutions, Suspension concentrates (SC), oil- or water-based dispersions, such as dispersion in oil (oily suspension concentrate, OD), oil-miscible solutions, capsule suspensions (CS), dusts (DP), granules (GR) in the form of micro, spray, elevator and adsorption granules, water-dispersible granules (WG), water-soluble granules (SG), ULV (ultra-low volume) formulations, microcapsules and WSBs (water-soluble bags).
  • WP wettable powder
  • SP water-soluble powders
  • EC emulsifiable concentrates
  • EW emulsions
  • SC Suspension concentrate
  • the necessary formulation auxiliaries such as inert materials, surfactants, solvents and other additives, are also known and described, for example, in: Watkins, "Handbook of Insecticides Dust Diluents and Carriers", 2nd ed., Darland Books, Caldwell N.J., H.v. Olphen, "Introduction to Clay Colloid Chemistry”; 2nd Ed., J. Wiley & Sons, N.Y .; C. Marsden, “Solvents Guide”; 2nd Ed., Interscience, N.Y. 1963; McCutcheon's "Detergents and Emulsifiers Annual", MC Publ.
  • Injectable powders are preparations which are uniformly dispersible in water and contain surfactants of the ionic and / or nonionic type (wetting agents, dispersants) in addition to the active ingredient except a diluent or inert substance.
  • the active ingredients are finely ground, for example, in customary apparatus, such as hammer mills, blower mills and air jet mills, and mixed simultaneously or subsequently with the formulation auxiliaries.
  • Emulsifiable concentrates are prepared by dissolving the active ingredients in an organic solvent, e.g. Butanol, cyclohexanone, dimethylformamide, xylene or else higher-boiling aromatics or hydrocarbons, or mixtures of the organic solvents with the addition of one or more ionic and / or nonionic surfactants (emulsifiers).
  • organic solvent e.g. Butanol, cyclohexanone, dimethylformamide, xylene or else higher-boiling aromatics or hydrocarbons, or mixtures of the organic solvents with the addition of one or more ionic and / or nonionic surfactants (emulsifiers).
  • emulsifiers which can be used are alkylarylsulfonic acid calcium salts such as calcium dodecylbenzenesulfonate or nonionic emulsifiers such as fatty acid polyglycol esters, alkylaryl polyglycol ethers, fatty alcohol polyglycol ethers, propylene oxide-ethylene oxide condensation products, alkyl polyethers, sorbitan esters such as e.g. Sorbitan fatty acid esters or polyoxethylenesorbitan esters, such as polyoxyethylene sorbitan fatty acid esters.
  • alkylarylsulfonic acid calcium salts such as calcium dodecylbenzenesulfonate
  • nonionic emulsifiers such as fatty acid polyglycol esters, alkylaryl polyglycol ethers, fatty alcohol polyglycol ethers, propylene oxide-ethylene oxide condensation products, alkyl polyethers, sorbitan esters such as e.g
  • Dusts are obtained by grinding the active ingredients with finely divided solids, eg talc, natural clays, such as kaolin, bentonite and pyrophyllite, or diatomaceous earth.
  • Suspension concentrates may be water or oil based. You can, for example, by wet grinding using commercially available bead mills and, if appropriate, addition of surfactants, as are already listed above, for example, in the other types of formulation.
  • Emulsions e.g. Oil-in-water emulsions (EW) can be prepared, for example, by means of stirrers, colloid mills and / or static mixers using aqueous organic solvents and optionally surfactants, as described, for example, in US Pat. listed above for the other formulation types.
  • EW Oil-in-water emulsions
  • Granules can either be prepared by atomizing the active ingredients onto adsorptive, granulated inert material or by applying active substance concentrates by means of adhesives, e.g. Polyvinyl alcohol, polyacrylic acid sodium or mineral oils, on the surface of carriers such as sand, kaolinites or granulated inert material. Also, the active ingredients in the usual manner for the production of fertilizer granules - optionally in admixture with fertilizers - granulated.
  • adhesives e.g. Polyvinyl alcohol, polyacrylic acid sodium or mineral oils
  • Water-dispersible granules are generally prepared by the usual methods such as spray drying, fluidized bed granulation, plate granulation, mixing with high-speed mixers and extrusion without solid inert material.
  • the mixtures according to the invention contain from 0.1 to 99% by weight, in particular from 0.1 to 95% by weight, of active compounds of component (A) and / or (B).
  • the active ingredient concentration is for example about 10 to 90 wt .-%, the remainder to 100 wt .-% consists of conventional formulation components.
  • the concentration of active ingredient may be about 1 to 90% by weight.
  • Dust-like formulations contain, for example, 1 to 80, usually 5 to 60 wt .-% of active ingredient.
  • Sprayable solutions for example 0.05 to 80, usually 2 to 50 wt .-% of active ingredient.
  • the active ingredient content depends, in part, on whether the active compound is liquid or solid and which granulating aids, fillers, etc. are used.
  • the content of active ingredient for example, between 1 and 95 wt .-%, usually between 10 and 80 wt .-%.
  • the active substance formulations mentioned optionally contain the customary adhesive, wetting, dispersing, emulsifying, penetrating, preserving, antifreezing and solvent, fillers, carriers and dyes, antifoams, evaporation inhibitors and the pH and the Viscosity-influencing agent.
  • the formulations present in commercial form are optionally diluted in a customary manner, e.g. in wettable powders, emulsifiable concentrates, dispersions and water-dispersible granules by means of water, and then applied to the plants.
  • This also includes special application variants, as are customary in cotton cultivation, e.g. the application by plane. Dust-like preparations, ground or scattered granules and sprayable solutions are usually no longer diluted with other inert substances before use.
  • the invention also provides the use of the mixtures or agents according to the invention as defoliants, i. for effecting leaf shedding of plants, preferably in suitable crops, such as cotton, sunflowers or potatoes. Particularly preferred is the use as defoliant in cotton crops.
  • the invention likewise provides a process for defolianting a plant, preferably a crop, particularly preferably a cotton plant, which comprises treating the plant with a mixture or an agent according to the invention.
  • the invention also provides the use of the mixtures according to the invention or agents for reducing the re-expulsion of plants, preferably in suitable crops, such as cotton, sunflowers or potatoes. Particularly preferred is the use for reducing re-emergence in cotton crops.
  • the invention likewise provides a process for reducing the re-expulsion of a plant, preferably a crop, particularly preferably a cotton plant, which comprises treating the plant with a mixture or an agent according to the invention.
  • mixtures or agents and the methods for the treatment of genetically modified (transgenic) plants are used, such plants containing, for example, one or more foreign genes to achieve insecticidal and / or herbicidal resistance.
  • Cotton seeds of the "Carmen” variety were sown at a depth of 1 cm and in a greenhouse cabin (20000-50000 LUX light: 14 h / day; temperature: night 22 0 C - day 30 0 C; ambient humidity: night 65% - day 50%) to the 6-8 leaf stage.
  • the plants were treated on a laboratory spraying track with spray liquors of thidiazuron and thidiazuron with combination partners.
  • the amount of water for the spray application was 300 l / ha. After treatment, the plants were placed back in the greenhouse cab.
  • Nekal BX (dispersant mixture: CAS No .: 091078-64-7 and 027213-90-7) 44% kaolin 14030/010 (structuring agent: mineral filler)
  • Nekal BX (dispersant mixture: CAS No .: 091078-64-7 and 027213-90-7) 58% kaolin 14030/010 (structuring agent: mineral filler)
  • Nekal BX (dispersant mixture: CAS No .: 091078-64-7 and 027213-90-7) 48% kaolin 14030/010 (structuring agent: mineral filler) 2.
  • Soprophor FL (dispersing agent: CAS No .: 105362-40-1)
  • Rhodopol 23 0.15% Rhodopol 23 (thickener: CAS No. 011138-66-2)
  • Soprophor FL (dispersing agent: CAS No .: 105362-40-1)
  • Rhodopol 23 0.15% Rhodopol 23 (thickener: CAS No. 011138-66-2)
  • Soprophor FL (dispersing agent: CAS No .: 105362-40-1)
  • Rhodopol 23 0.15% Rhodopol 23 (thickener: CAS No. 011138-66-2)

Landscapes

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

Abstract

L'invention concerne un mélange contenant (A) thidiazurone (ou thidiazurone et diurone) et (B) un ou plusieurs composés du groupe des 1,2,4-triazinones herbicides, de préférence métribuzine et/ou métamitrone. Le mélange selon l'invention sert d'agent pour la défoliation et/ou la réduction du rebourgeonnement, notamment dans des cultures de coton.
EP10711589A 2009-04-07 2010-03-30 Défoliant à base de thidiazurone et de 1, 2, 4-triazinones Withdrawn EP2416659A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10711589A EP2416659A1 (fr) 2009-04-07 2010-03-30 Défoliant à base de thidiazurone et de 1, 2, 4-triazinones

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09005078A EP2238834A1 (fr) 2009-04-07 2009-04-07 Défoliant à base de thidiazuron et de 1,2,4-triazinones
EP10711589A EP2416659A1 (fr) 2009-04-07 2010-03-30 Défoliant à base de thidiazurone et de 1, 2, 4-triazinones
PCT/EP2010/001998 WO2010115546A1 (fr) 2009-04-07 2010-03-30 Défoliant à base de thidiazurone et de 1, 2, 4-triazinones

Publications (1)

Publication Number Publication Date
EP2416659A1 true EP2416659A1 (fr) 2012-02-15

Family

ID=41100898

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09005078A Withdrawn EP2238834A1 (fr) 2009-04-07 2009-04-07 Défoliant à base de thidiazuron et de 1,2,4-triazinones
EP10711589A Withdrawn EP2416659A1 (fr) 2009-04-07 2010-03-30 Défoliant à base de thidiazurone et de 1, 2, 4-triazinones

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP09005078A Withdrawn EP2238834A1 (fr) 2009-04-07 2009-04-07 Défoliant à base de thidiazuron et de 1,2,4-triazinones

Country Status (6)

Country Link
US (1) US8383550B2 (fr)
EP (2) EP2238834A1 (fr)
CN (1) CN102421294B (fr)
AU (1) AU2010233988B2 (fr)
BR (1) BRPI1014511A8 (fr)
WO (1) WO2010115546A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PE20150278A1 (es) * 2012-05-25 2015-03-14 Lanxess Distrib Gmbh Agentes de aclareo que contienen diuron
EP3541183A4 (fr) * 2016-11-18 2020-05-20 Huntsman Corporation Australia Pty Limited Co-formulation comprenant un régulateur de croissance végétale et une huile, et procédés de préparation et d'utilisation de ladite co-formulation
CN106954633A (zh) * 2017-03-24 2017-07-18 合肥云都棉花有限公司 一种棉花脱叶剂及其制备方法
CN107593721B (zh) * 2017-10-19 2019-06-04 中国农业科学院麻类研究所 一种大麻脱叶的方法、脱叶剂及其应用
CN110833073B (zh) * 2019-11-27 2021-08-31 中国农业科学院棉花研究所 一种含噻苯隆和l-赖氨酸的棉花脱叶催熟组合物
EP4295685A1 (fr) * 2022-06-22 2023-12-27 Adama Agan Ltd. Procédé d'application d'ingrédients actifs herbicides à différentes étapes
EP4295686A1 (fr) * 2022-06-22 2023-12-27 Adama Agan Ltd. Composition herbicide agrochimique
EP4295684A1 (fr) * 2022-06-22 2023-12-27 Adama Agan Ltd. Composition herbicide agrochimique
EP4295687A1 (fr) * 2022-06-22 2023-12-27 Adama Agan Ltd. Composition herbicide agrochimique

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
DE2224161A1 (de) * 1972-05-18 1973-11-29 Bayer Ag Selektiv herbizide mittel
DE2506690A1 (de) * 1975-02-14 1976-09-02 Schering Ag Mittel zur entblaetterung von pflanzen
DE2646712A1 (de) 1976-10-14 1978-04-20 Schering Ag Mittel zur pflanzenwachstumsregulierung
DE3222622A1 (de) 1982-06-11 1983-12-15 Schering AG, 1000 Berlin und 4709 Bergkamen Mittel zur entblaetterung von pflanzen mit synergistischer wirkung
DE19632424A1 (de) * 1996-08-12 1998-02-19 Hoechst Schering Agrevo Gmbh Synergistische Wirkstoffkombinationen zur Bekämpfung von Schadpflanzen in Nutzpflanzenkulturen
DE19951428A1 (de) * 1999-10-26 2001-05-03 Aventis Cropscience Gmbh Defoliant
DE19911165B4 (de) * 1999-03-12 2008-03-13 Bayer Cropscience Ag Entlaubungsmittel
MX2009001213A (es) * 2006-08-04 2009-02-13 Arysta Lifescience North Ameri Composicion y metodo defoliante.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010115546A1 *

Also Published As

Publication number Publication date
AU2010233988A1 (en) 2011-11-10
EP2238834A1 (fr) 2010-10-13
CN102421294B (zh) 2014-10-22
BRPI1014511A8 (pt) 2016-05-24
AU2010233988B2 (en) 2015-04-23
US8383550B2 (en) 2013-02-26
CN102421294A (zh) 2012-04-18
US20100311587A1 (en) 2010-12-09
BRPI1014511A2 (pt) 2015-08-25
WO2010115546A1 (fr) 2010-10-14

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