WO2012007908A1 - Procédé de désherbage - Google Patents

Procédé de désherbage Download PDF

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Publication number
WO2012007908A1
WO2012007908A1 PCT/IB2011/053114 IB2011053114W WO2012007908A1 WO 2012007908 A1 WO2012007908 A1 WO 2012007908A1 IB 2011053114 W IB2011053114 W IB 2011053114W WO 2012007908 A1 WO2012007908 A1 WO 2012007908A1
Authority
WO
WIPO (PCT)
Prior art keywords
hppd
herbicide
triazine
recalcitrant
mesotrione
Prior art date
Application number
PCT/IB2011/053114
Other languages
English (en)
Inventor
Gordon Vail
Charles Foresman
Original Assignee
Syngenta Participations 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 Syngenta Participations Ag filed Critical Syngenta Participations Ag
Publication of WO2012007908A1 publication Critical patent/WO2012007908A1/fr

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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
    • A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
    • A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
    • A01N41/10—Sulfones; Sulfoxides
    • 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
    • A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
    • A01N43/66—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms
    • A01N43/68—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms with two or three nitrogen atoms directly attached to ring carbon atoms
    • A01N43/70—Diamino—1,3,5—triazines with only one oxygen, sulfur or halogen atom or only one cyano, thiocyano (—SCN), cyanato (—OCN) or azido (—N3) group directly attached to a ring carbon atom
    • 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
    • A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
    • A01N57/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds
    • A01N57/20—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds containing acyclic or cycloaliphatic radicals

Definitions

  • HPPD-inhibiting herbicide mesotrione Hydroxyphenylpyruvate dioxygenase (HPPD) inhibiting herbicides are a class of herbicides that can be used both pre- and/or post-emergence to provide effective control of a wide variety of weeds. It has recently been discovered, however, that certain weed biotypes do not seem to be adequately controlled by post-emergence applications of HPPD-inhibiting herbicides at application rates which would normally be expected to afford adequate control (by "normally” it is meant that the herbicide is applied at a typical commercial rate, as recommended by the herbicide manufacturer. Thus a normal post-emergence application rate for the HPPD-inhibiting herbicide mesotrione would be, for example, from 30 to 210 g/ha, more typically from 70 to 150 g/ha).
  • HPPD recalcitrant weeds For the purposes of the present invention, such weed biotypes are referred to as "HPPD recalcitrant weeds".
  • HPPD recalcitrant weeds are weeds (in particular Palmer amaranth or common waterhemp) that have increased tolerance to HPPD inhibitors applied pre or post but are not resistant to HPPD inhibitors.
  • Triazine-resistant plants are known in the art and referred to, for example, in US 7,071,147 which teaches that triazine-resistant plants can be successfully controlled via the application of mesotrione and a triazine herbicide.
  • HPPD recalcitrant and triazine-resistant weeds can also be successfully controlled via the application of a herbicidal composition comprising a HPPD-inhibiting herbicide and a triazine herbicide.
  • a herbicidal composition comprising a HPPD-inhibiting herbicide and a triazine herbicide.
  • This finding is surprising in that weed biotypes that are not adequately controlled by individual treatment with an HPPD-inhibiting herbicide or triazine herbicide would similarly not be expected to be adequately controlled by a herbicidal composition comprising both herbicides, which is not the case.
  • the combination of an HPPD-inhibiting herbicide and a triazine herbicide provides synergistic control of HPPD recalcitrant and triazine-resistant weeds.
  • a method of controlling a HPPD recalcitrant and triazine resistant weed at a locus comprising applying to the locus a herbicidal composition comprising an HPPD-inhibiting herbicide and a triazine herbicide.
  • locus means the area in which the plants are growing or will grow. Thus the locus will typically be a field or fields. In the context of the present invention it should be understood that the locus may further comprise other weeds and/or crops such corn, cotton or soybeans.
  • the herbicidal composition can be applied as a pre- emergence application and/or a post-emergence application.
  • post-emergence is taken to mean that the herbicidal composition is applied once the HPPD recalcitrant and triazine resistant weed has emerged from the locus.
  • pre-emergence is taken to mean that the herbicidal composition is applied before the HPPD recalcitrant weed has emerged from the locus.
  • the HPPD-inhibiting herbicide and triazine herbicide may be applied sequentially to the locus (in any order). In this instance the components are typically applied within 3 days and most preferably within 24 hours of each other. Alternatively and preferably, the individual components are applied simultaneously in a single herbicidal composition.
  • HPPD-inhibiting herbicides include, for example, benzofenap, bicyclopyrone, benzobicyclon, isoxachlortole, isoxaflutole, mesotrione, pyrazoxyfen, pyrasulfatole, pyrazolynate, sulcotrione, tembotrione, topramazone and teiuryltrione.
  • the HPPD-inhibiting herbicide used is selected from the group consisting of bicyclopyrone, isoxaflutole, mesotrione, tembotrione and topramezone. Mesotrione is particularly preferred.
  • HPPD-inhibiting herbicide should be taken to include agrochemically acceptable salts thereof, for example mesotrione can be in the form of a metal salt, for example a copper salt as disclosed in US 5,912,207.
  • the HPPD-inhibiting herbicide is typically applied from 20 g/ha to 500 g/ha. With regard to mesotrione the preferred post-emergence application rate is from 70 to 150 g/ha.
  • numerous triazine herbicides are known in the art. In the context of the present invention, the triazine herbicide is selected from the group consisting of ametryne, atrazine, cyanazine, desmetryne, dimethametryne, prometon, prometryne, propazine, terbumeton, terbuthylazine, terbutryne, trietazine, simazine, simetryne and metribuzin.
  • the triazine herbicide is selected from the group consisting of atrazine, metribuzin and terbuthylazine and is most preferably atrazine.
  • the triazine herbicide is typically applied from 100 g/ha to 2000 g/ha, preferably from 500 g/ha to 1000 g/ha.
  • the herbicidal composition comprises mesotrione and atrazine.
  • the herbicidal composition may further comprise one or more additional herbicides and/or herbicide safeners in order to confer even better control of the HPPD recalcitrant and triazine resistant weed.
  • HPPD recalcitrant and triazine-resistant weeds can include biotypes of the following species:- Amaranthus sp. (in particular Amaranthus palmeri, Amaranthus rudis, Amaranthus tuberculatus and Amaranthus tamariscinus), Ambrosia sp., Conyza sp. Digitaria sp., Chenopodium sp. and Xanthium sp., Solanum sp., Datura sp., Abutilon sp, kochia, Russian thistle and Polygonum sp.
  • Amaranthus sp. in particular Amaranthus palmeri, Amaranthus rudis, Amaranthus tuberculatus and Amaranthus tamariscinus
  • Ambrosia sp. Conyza sp. Digitaria sp., Chenopodium sp. and Xanthium sp
  • compositions of the herbicidal composition as described above are suitable applied as an agriculturally acceptable composition.
  • the composition(s) preferably also comprise an agriculturally acceptable carrier therefor.
  • the composition is applied as a formulation containing the various adjuvants and carriers known to or used in the industry for facilitating dispersion.
  • the choice of formulation and mode of application for any given compound may affect its activity, and selection will be made accordingly.
  • the compositions of the invention may thus be formulated as granules, as wettable powders, as emulsifiable concentrates, as powders or dusts, as flowables, as solutions, as suspensions or emulsions, or as controlled release forms such as microcapsules.
  • These formulations may contain as little as about 0.5% to as much as about 95% or more by weight of active ingredient.
  • the optimum amount for any given compound will depend upon formulation, application equipment, and nature of the plants to be controlled.
  • Wettable powders are in the form of finely divided particles that disperse readily in water or other liquid carriers.
  • the particles contain the active ingredient retained in a solid matrix.
  • Typical solid matrices include fuller's earth, kaolin clays, silicas and other readily wet organic or inorganic solids. Wettable powders normally contain about 5% to about 95% of the active ingredient plus a small amount of wetting, dispersing, or emulsifying agent.
  • Emulsifiable concentrates are homogeneous liquid compositions dispersible in water or other liquid, and may consist entirely of the active compound with a liquid or solid emulsifying agent, or may also contain a liquid carrier, such as xylene, heavy aromatic naphthas, isophorone and other non-volatile organic solvents. In use, these concentrates are dispersed in water or other liquid and normally applied as a spray to the area to be treated. The amount of active ingredient may range from about 0.5% to about 95% of the concentrate.
  • Granular formulations include both extrudates and relatively coarse particles, and are usually applied without dilution to the area in which suppression of vegetation is desired.
  • Typical carriers for granular formulations include sand, fuller's earth, attapulgite clay, bentonite clays, montmorillonite clay, vermiculite, perlite and other organic or inorganic materials which absorb or which can be coated with the active compound.
  • Granular formulations normally contain about 5% to about 25% active ingredients which may include surface-active agents such as heavy aromatic naphthas, kerosene and other petroleum fractions, or vegetable oils; and/or stickers such as dextrins, glue or synthetic resins.
  • Dusts are free-flowing admixtures of the active ingredient with finely divided solids such as talc, clays, flours and other organic and inorganic solids that act as dispersants and carriers.
  • Microcapsules are typically droplets or granules of the active material enclosed in an inert porous shell which allows escape of the enclosed material to the surroundings at controlled rates.
  • Encapsulated droplets are typically about 1 to 50 microns in diameter.
  • the enclosed liquid typically constitutes about 50 to 95% of the weight of the capsule, and may include solvent in addition to the active compound.
  • Encapsulated granules are generally porous granules with porous membranes sealing the granule pore openings, retaining the active species in liquid form inside the granule pores.
  • Granules typically range from 1 millimeter to 1 centimeter, preferably 1 to 2 millimeters in diameter. Granules are formed by extrusion, agglomeration or prilling, or are naturally occurring.
  • Shell or membrane materials include natural and synthetic rubbers, cellulosic materials, styrene- butadiene copolymers, polyacrylonitriles, polyacrylates, polyesters, polyamides, polyureas, polyurethanes and starch xanthates.
  • Other useful formulations for herbicidal applications include simple solutions of the active ingredient in a solvent in which it is completely soluble at the desired concentration, such as acetone, alkylated naphthalenes, xylene and other organic solvents. Pressurized sprayers, wherein the active ingredient is dispersed in finely-divided form as a result of vaporization of a low boiling dispersant solvent carrier, may also be used.
  • formulations include wetting, dispersing or emulsifying agents.
  • examples are alkyl and alkylaryl sulfonates and sulfates and their salts; polyhydric alcohols; polyethoxylated alcohols; esters and fatty amines. These agents, when used, normally comprise from 0.1% to 15% by weight of the formulation.
  • Each of the above formulations can be prepared as a package containing the herbicide together with other ingredients of the formulation (diluents, emulsifiers, surfactants, etc.).
  • the formulations can also be prepared by a tank mix method, in which the ingredients are obtained separately and combined at the grower site.
  • Dust and liquid compositions can be applied to the areas where control is desired by conventional methods.
  • Dust and liquid compositions can be applied by the use of power-dusters, broom and hand sprayers and spray dusters.
  • the formulations can also be applied from airplanes as a dust or a spray or by rope wick applications.
  • dust and liquid formulations can be distributed in the soil to a depth of at least one-half inch below the soil surface or applied to the soil surface only, by spraying or sprinkling.
  • the formulations can also be applied by addition to irrigation water. This permits penetration of the formulations into the soil together with the irrigation water.
  • Dust compositions, granular compositions or liquid formulations applied to the surface of the soil can be distributed below the surface of the soil by conventional means such as disking, dragging or mixing operations. Examples
  • Herbicide applications are applied at three post-emergence growth stages (2 inch, 6 inch and 11 inch).
  • Mesotrione was applied at 105g/ha (lx), 210 g/ha and 420 g/ha as CALLISTOTM.
  • Atrazine was applied at 1120 g/ha as AATREXTM.
  • the expected scores indicated are determined according to Colby's formula (Colby, S. R. "Calculating synergistic and antagonistic responses of herbicide combinations", Weeds, 15, pp 20-22, 1967).
  • POST post-emergence

Abstract

Cette invention concerne un procédé de lutte contre une mauvaise herbe réfractaire à la HPPD et résistante à la triazine au niveau d'un site actif, ledit procédé consistant à appliquer sur le site actif une composition herbicide comprenant un herbicide inhibiteur de la HPPD et un herbicide de type triazine.
PCT/IB2011/053114 2010-07-16 2011-07-12 Procédé de désherbage WO2012007908A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36506310P 2010-07-16 2010-07-16
US61/365,063 2010-07-16

Publications (1)

Publication Number Publication Date
WO2012007908A1 true WO2012007908A1 (fr) 2012-01-19

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014072250A1 (fr) * 2012-11-06 2014-05-15 Bayer Cropscience Ag Combinaisons herbicides pour cultures de fèves de soja résistantes
CN104054716A (zh) * 2014-06-18 2014-09-24 山东康乔生物科技有限公司 一种含有环磺酮的除草组合物
CN114521561A (zh) * 2022-02-25 2022-05-24 陕西上格之路生物科学有限公司 一种含氟吡草酮的除草组合物

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5912207A (en) 1997-01-31 1999-06-15 Zeneca Limited Stable herbicidal compositions containing metal chelates of herbicidal dione compounds
WO2003005820A1 (fr) * 2001-07-11 2003-01-23 Syngenta Limited Procede de lutte contre la vegetation nuisible

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5912207A (en) 1997-01-31 1999-06-15 Zeneca Limited Stable herbicidal compositions containing metal chelates of herbicidal dione compounds
WO2003005820A1 (fr) * 2001-07-11 2003-01-23 Syngenta Limited Procede de lutte contre la vegetation nuisible
US7071147B2 (en) 2001-07-11 2006-07-04 Syngenta Limited Weed control process

Non-Patent Citations (5)

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Title
"The Pesticide Manual", 2009, BRITISH CROP PROTECTION COUNCIL
COLBY, S. R: "Calculating synergistic and antagonistic responses of herbicide combinations", WEEDS, vol. 15, 1967, pages 20 - 22, XP001112961
JOSIE A HUGIE ET AL: "INVESTIGATING THE INTERACTION BETWEEN ATRAZINE AND MESOTRIONE", PROCEEDINGS OF THE 58TH ANNUAL MEETING OF THE NORTH CENTRAL WEED SCIENCE SOCIETY, 1 December 2003 (2003-12-01), Champaign, Illinois, U.S.A., XP055009803 *
JOSIE A. HUGIE ET AL: "Defining the Rate Requirements for Synergism Between Mesotrione and Atrazine in Redroot Pigweed (Amaranthus Retroflexus)", WEED SCIENCE, vol. 56, no. 2, 1 March 2008 (2008-03-01), pages 265 - 270, XP055009726, ISSN: 0043-1745, DOI: 10.1614/WS-07-128.1 *
SUTTON P ET AL: "Activity of mesotrione on resistant weeds in maize", PEST MANAGEMENT SCIENCE, WILEY & SONS, BOGNOR REGIS; GB, vol. 58, no. 9, 1 September 2002 (2002-09-01), pages 981 - 984, XP002217177, ISSN: 1526-498X, DOI: 10.1002/PS.554 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014072250A1 (fr) * 2012-11-06 2014-05-15 Bayer Cropscience Ag Combinaisons herbicides pour cultures de fèves de soja résistantes
CN104994737A (zh) * 2012-11-06 2015-10-21 拜尔农作物科学股份公司 用于耐受性大豆栽培种的除草剂结合物
JP2016500702A (ja) * 2012-11-06 2016-01-14 バイエル・クロップサイエンス・アクチェンゲゼルシャフト 耐性ダイズ栽培物のための除草剤組み合わせ
CN104994737B (zh) * 2012-11-06 2017-08-11 拜尔农作物科学股份公司 用于耐受性大豆栽培种的除草剂结合物
US9974306B2 (en) 2012-11-06 2018-05-22 Bayer Cropscience Ag Herbicidal combinations for tolerant soybean cultures
CN104054716A (zh) * 2014-06-18 2014-09-24 山东康乔生物科技有限公司 一种含有环磺酮的除草组合物
CN104054716B (zh) * 2014-06-18 2017-02-15 山东康乔生物科技有限公司 一种含有环磺酮的除草组合物
CN114521561A (zh) * 2022-02-25 2022-05-24 陕西上格之路生物科学有限公司 一种含氟吡草酮的除草组合物

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