EP2475255A2 - Utilisation de céto-énols cycliques pour lutter contre des bactéries pathogènes chez les végétaux - Google Patents

Utilisation de céto-énols cycliques pour lutter contre des bactéries pathogènes chez les végétaux

Info

Publication number
EP2475255A2
EP2475255A2 EP10771639A EP10771639A EP2475255A2 EP 2475255 A2 EP2475255 A2 EP 2475255A2 EP 10771639 A EP10771639 A EP 10771639A EP 10771639 A EP10771639 A EP 10771639A EP 2475255 A2 EP2475255 A2 EP 2475255A2
Authority
EP
European Patent Office
Prior art keywords
plants
plant
enols
pathogenic bacteria
citrus
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Withdrawn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
EP10771639A
Other languages
German (de)
English (en)
Inventor
Wolfgang Thielert
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 EP10771639A priority Critical patent/EP2475255A2/fr
Publication of EP2475255A2 publication Critical patent/EP2475255A2/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Withdrawn legal-status Critical Current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
    • 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
    • A01N43/36—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings
    • A01N43/38—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings condensed with carbocyclic rings
    • 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
    • A01N47/02—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 no bond to a nitrogen atom
    • A01N47/06—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 no bond to a nitrogen atom containing —O—CO—O— groups; Thio analogues thereof

Definitions

  • the present invention relates to the use of known cyclic etoenols against plant pathogenic bacteria.
  • the bacterium belongs to the alpha subdivision of the Proteobacteriae, which serve as a vector the citrus leaf fleas Diaphorina citri (CLasiaticus, CL americanus, CLafricanus) and Trioza erytreae (CLafricanus, CLasiaticus); they are limited to the phloem.
  • Infected trees are no longer recovering.
  • the control of HLB is based on the preventive control of vectors with systemic insecticides and contact insecticides. However, the efficacy and potency of these compounds is not always fully satisfactory. Newly infected trees show the first symptoms after a latency period of 6-12 months. Eradication of infested trees is also essential to prevent further uptake by leaf fleas and spread of the disease. HLB bacteria live and reproduce exclusively in the phloem of citrus trees. Currently there are no bactericides for the curative treatment of HLB.
  • the ketoenol ACCase inhibitor spirotetramat (compound of formula (1-2)) with its in phloem-mobile and biologically active metabolite Spirotetramat-enol (compound of formula (I-1)) is not only effective against a wide variety of sucking pests, including vectors of HLB disease, but also against fungal pathogens (WO 06/077071, WO 07/131681, WO 07/126691, WO 07/144086, WO 08/017388, WO 08/080545, WO 09/000443, WO 09/003597, WO 09/085176, WO 09/083 132, PCT / EP / 2009/000816 (not yet published)) and in particular against exclusively phloem-living bacteria such as Candidatus Liberibacter species in citrus.
  • (I-2) Spirotetramat are suitable for controlling bacteria, preferably phytopathogenic bacteria, and especially against bacteria such as Candidatus Liberibacter species in citrus that live exclusively in the phloem. It is used after spraying and in soil application.
  • the active compounds of the formulas (I-I) and (I-2) and their insecticides and / or acaricidal action are known from WO 98/05638, WO 04/007448.
  • the active ingredients are suitable for plant tolerance to combat bacterial diseases that occur in fruit growing, in agriculture, in nurseries and in forests. They can preferably be used as crop protection agents. They are effective against normally sensitive and resistant species as well as against all or individual stages of development.
  • the bacteria mentioned above include: Candidatus Liberibacter asiaticus, Candidatus Liberibacter americanus, Candidatus Liberibacter africanus, Candidatus Liberibacter africanus ssp. Capensis.
  • citrus such as oranges, grapefruit, tangerines, lemons, limes, bitter oranges, kumquats, satsumas, etc., are understood to mean perennial crops.
  • plants and parts of plants can be treated.
  • plants are understood as meaning all plants and plant populations, such as desirable and undesired wild plants or crop plants (including naturally occurring plants)
  • Crop plants can be plants which can be obtained by conventional breeding and optimization methods or by biotechnological and genetic engineering methods or combinations of these methods, including the transgenic plants and including the plant varieties which can or can not be protected by plant breeders' rights.
  • Plant parts are to be understood as meaning all aboveground and subterranean parts and organs of the plants, such as shoot, leaf, flower and root, examples of which include leaves, needles, stems, stems, flowers, fruiting bodies, fruits and seeds, and roots.
  • the plant parts also include crops and vegetative and generative propagation material, such as cuttings, offshoots and seeds.
  • the treatment according to the invention of the plants and plant parts with the active ingredients is carried out directly or by acting on their environment and habitat according to the usual treatment methods, e.g. by casting and spraying.
  • plants and their parts can be treated.
  • wild-type or plant species obtained by conventional biological breeding methods such as crossing or protoplast fusion
  • plant cultivars and their parts are treated.
  • transgenic plants and plant cultivars obtained by genetic engineering if appropriate in combination with conventional methods (Genetically Modified Organisms), and parts thereof are treated.
  • the terms "parts” or “parts of plants” or “plant parts” have been explained above.
  • Plant varieties are understood as meaning plants having new traits which have been bred by conventional breeding, by mutagenesis or by recombinant DNA techniques. These can be varieties, biotypes and genotypes.
  • the treatment according to the invention may also give rise to superadditive ("synergistic") effects.
  • superadditive for example, reduced application rates and / or extensions of the spectrum of action and / or an increase in the Effect of the substances and compositions which can be used according to the invention, better plant growth, increased tolerance to high or low temperatures, increased tolerance to dryness or to water or soil salt content, increased flowering efficiency, easier harvest, acceleration of ripeness, higher crop yields, higher quality and / or higher Nutritional value of the harvested products, higher shelf life and / or workability of the harvested products possible, which go beyond the expected effects actually.
  • the preferred plants or plant varieties to be treated according to the invention to be treated include all plants which, as a result of the genetic engineering modification, obtained genetic material which gives these plants particularly advantageous valuable properties ("traits").
  • traits are better plant growth, increased tolerance to high or low temperatures, increased tolerance to dryness or to bottoms salt, increased flowering, easier harvesting, acceleration of ripeness, higher crop yields, higher quality and / or higher nutritional value of the harvested products , higher shelf life and / or workability of the harvested products.
  • Further and particularly emphasized examples of such properties are an increased defense of the plants against animal and microbial pests, as against insects, mites, phytopathogenic fungi, bacteria and / or viruses as well as an increased tolerance of the plants against certain herbicidal active substances.
  • transgenic plants are the important crops, such as cereals (wheat, rice), maize, soya, potatoes, sugar beets, tomatoes, peas and other vegetables, cotton, tobacco, oilseed rape, and fruit plants (with the fruits apples, pears, Citrus fruits and grapes), with special emphasis on maize, soya, potato, cotton, tobacco and oilseed rape.
  • Traits which are particularly emphasized are the increased defense of the plants against insects, arachnids, nematodes and snails by toxins produced in the plants, in particular those produced by the genetic material from Bacillus thuringiensis (eg by the genes CrylA (a) , CrylA (b), CrylA (c), CryllA, CrylllA, CryIIIB2, Cry9c Cry2Ab, Cry3Bb and Cr lF and combinations thereof) in the plants (hereinafter "Bt plants”). Traits also highlight the increased resistance of plants to fungi, bacteria and viruses by systemic acquired resistance (SAR), systemin, phytoalexins, elicitors and resistance genes and correspondingly expressed proteins and toxins.
  • SAR systemic acquired resistance
  • trasits which are furthermore particularly emphasized are the increased tolerance of the plants to certain herbicidally active compounds, for example imidazolinones, sulfonylureas, glyphosate or phosphinotricin (eg "PAT" gene).
  • herbicidally active compounds for example imidazolinones, sulfonylureas, glyphosate or phosphinotricin (eg "PAT" gene).
  • the genes which confer the desired properties can also occur in combinations with one another in the transgenic plants.
  • the active compounds can be converted into the customary formulations, such as solutions, emulsions, wettable powders, water- and oil-based suspensions, powders, dusts, pastes, soluble powders, soluble granules, scattering granules, suspension-emulsion concentrates, active substance-impregnated natural substances, active substance impregnated synthetic materials, fertilizers and micro-encapsulants in polymeric materials.
  • customary formulations such as solutions, emulsions, wettable powders, water- and oil-based suspensions, powders, dusts, pastes, soluble powders, soluble granules, scattering granules, suspension-emulsion concentrates, active substance-impregnated natural substances, active substance impregnated synthetic materials, fertilizers and micro-encapsulants in polymeric materials.
  • formulations are prepared in a known manner, e.g. by mixing the active compounds with extenders, ie liquid solvents and / or solid carriers, if appropriate using surface-active agents, ie emulsifiers and / or dispersants and / or foam-forming agents.
  • extenders ie liquid solvents and / or solid carriers
  • surface-active agents ie emulsifiers and / or dispersants and / or foam-forming agents.
  • Excipients which can be used are those which are suitable for imparting special properties to the composition itself and / or preparations derived therefrom (for example spray liquor, seed dressing), such as certain technical properties and / or specific biological properties.
  • Typical auxiliaries are: extenders, solvents and carriers.
  • polar and non-polar organic chemical liquids e.g. from the classes of aromatic and non-aromatic hydrocarbons (such as paraffins, alkylbenzenes, alkylnaphthalenes, chlorobenzenes), alcohols and polyols (which may also be substituted, etherified and / or esterified), ketones (such as acetone, cyclohexanone), Esters (including fats and oils) and (poly) ethers, simple and substituted amines, amides, lactams (such as N-alkylpyrrolidones) and lactones, sulfones and sulfoxides (such as dimethyl sulfoxide).
  • aromatic and non-aromatic hydrocarbons such as paraffins, alkylbenzenes, alkylnaphthalenes, chlorobenzenes
  • alcohols and polyols which may also be substituted, etherified and / or esterified
  • ketones such
  • Suitable liquid solvents are essentially: aromatics, such as xylene, toluene, or alkylnaphthalenes, chlorinated aromatics and chlorinated aliphatic hydrocarbons, such as chlorobenzenes, chloroethylenes or methylene chloride, aliphatic hydrocarbons, such as cyclohexane or paraffins, e.g.
  • Petroleum fractions mineral and vegetable oils, alcohols such as butanol or glycol and their ethers and esters, ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone or cyclohexanone, strongly polar solvents such as dimethyl sulfoxide, and water.
  • Suitable solid carriers are: for example, ammonium salts and ground natural minerals, such as kaolins, clays, talc, chalk, quartz, attapulgite, montmorillonite or diatomaceous earth, and ground synthetic minerals, such as highly disperse silica, alumina and silicates, as solid carriers for granules are: for example, broken and fractionated natural rocks such as calcite, marble, pumice, sepiolite, dolomite and synthetic granules of inorganic and organic flours and granules of organic material such as paper, sawdust, Coconut shells, corn cobs and tobacco stalks; suitable emulsifiers and / or foam formers are: for example nonionic and anionic emulsifiers, such as polyoxyethylene fatty acid esters, polyoxyethylene fatty alcohol ethers, for example alkylaryl polyglycol ethers, alkylsulfonates, alkyl sulfates, arylsul
  • POE ethers fatty and / or POP-POE adducts, POE and / or POP polyol derivatives, POE and / or POP sorbitan or sugar adducts, alkyl or aryl sulfates, sulfonates and phosphates or the corresponding PO-ether adducts.
  • suitable oligo- or polymers for example starting from vinylic monomers, from acrylic acid, from EO and / or PO alone or in combination with, for example, (poly) alcohols or (poly) amines.
  • lignin and its sulfonic acid derivatives simple and modified
  • Adhesives such as carboxymethylcellulose, natural and synthetic powdery, granular or latex-type polymers such as gum arabic, polyvinyl alcohol, polyvinyl acetate, and natural phospholipids such as cephalins and lecithins and synthetic phospholipids may be used in the formulations.
  • Dyes such as inorganic pigments, e.g. Iron oxide, titanium oxide, ferrocyan blue and organic dyes such as alizarin, azo and metal phthalocyanine dyes and trace nutrients such as salts of iron, manganese, boron, copper, cobalt, molybdenum and zinc.
  • inorganic pigments e.g. Iron oxide, titanium oxide, ferrocyan blue and organic dyes such as alizarin, azo and metal phthalocyanine dyes and trace nutrients such as salts of iron, manganese, boron, copper, cobalt, molybdenum and zinc.
  • additives may be fragrances, mineral or vegetable optionally modified oils, waxes and nutrients (also trace nutrients), such as salts of iron, manganese, boron, copper, cobalt, molybdenum and zinc.
  • Stabilizers such as cold stabilizers, preservatives, antioxidants, light stabilizers or other chemical and / or physical stability-improving agents may also be present.
  • the formulations generally contain between 0.01 and 98% by weight of active ingredient, preferably between 0.5 and 90%.
  • the active compounds may be present in commercial formulations as well as in the formulations prepared from these formulations in admixture with other active ingredients such as insecticides, attractants, sterilants, bactericides, acaricides, nematicides, fungicides, growth regulators, herbicides, safeners, fertilizers or semiochemicals.
  • the active substance content of the application forms prepared from the commercial formulations can vary within wide ranges.
  • the active ingredient concentration of the use forms may be from 0.0000001 to 95% by weight of active ingredient, preferably between 0.0001 and 1% by weight.
  • the application is done in a custom forms adapted to the application forms.
  • Citrus nursery plants are artificially inoculated with HLB (by grafting with HLB-infected material) to ensure a uniform rate of infection in all trees.
  • HLB-infected material Citrus nursery plants are artificially inoculated with HLB (by grafting with HLB-infected material) to ensure a uniform rate of infection in all trees.
  • the effectiveness of the applied products on the HLB-infected nursery plants is determined.
  • Fifty Midnight Valencia nursery plants are being fished on a Trifoliata hybrid pad.
  • the trees are transformed into 5 € containers in potter mixture (fumigated topsoil-bark mix). Subsequently, the trees are grafted with HLB-infected noble vines (at least two spikes per plant).
  • the variants are set up in the form of a randomized block system with 10 repetitions. Over the entire duration of the experiment, the customary irrigation, fertilizer and insect control measures are carried out.
  • the products are applied immediately after the HLB infection of the trees has been determined by PCR analysis and the total new growth in the test proved to be HLB-positive, with a spinal syringe as foliar application until incipient Abtropen.
  • Second PCR analysis (leaf removal, 3 months after grafting to determine the state of the trees after grafting).

Abstract

La présente invention concerne l'utilisation de céto-énols cycliques connus pour lutter contre des bactéries pathogènes chez les végétaux.
EP10771639A 2009-09-09 2010-08-28 Utilisation de céto-énols cycliques pour lutter contre des bactéries pathogènes chez les végétaux Withdrawn EP2475255A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10771639A EP2475255A2 (fr) 2009-09-09 2010-08-28 Utilisation de céto-énols cycliques pour lutter contre des bactéries pathogènes chez les végétaux

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US24075609P 2009-09-09 2009-09-09
EP09169845 2009-09-09
EP10771639A EP2475255A2 (fr) 2009-09-09 2010-08-28 Utilisation de céto-énols cycliques pour lutter contre des bactéries pathogènes chez les végétaux
PCT/EP2010/005296 WO2011029536A2 (fr) 2009-09-09 2010-08-28 Utilisation de céto-énols cycliques pour lutter contre des bactéries pathogènes chez les végétaux

Publications (1)

Publication Number Publication Date
EP2475255A2 true EP2475255A2 (fr) 2012-07-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP10771639A Withdrawn EP2475255A2 (fr) 2009-09-09 2010-08-28 Utilisation de céto-énols cycliques pour lutter contre des bactéries pathogènes chez les végétaux

Country Status (8)

Country Link
US (1) US20110071205A1 (fr)
EP (1) EP2475255A2 (fr)
JP (1) JP2013503910A (fr)
KR (1) KR20120099396A (fr)
CN (1) CN102480953A (fr)
MX (1) MX2012002299A (fr)
WO (1) WO2011029536A2 (fr)
ZA (1) ZA201202514B (fr)

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US20160024108A1 (en) 2013-03-12 2016-01-28 Bayer Cropscience Aktiengesellschaft Use of dithiine-tetracarboximides for controlling bacterial harmful organisms in useful plants
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Also Published As

Publication number Publication date
ZA201202514B (en) 2013-09-25
JP2013503910A (ja) 2013-02-04
KR20120099396A (ko) 2012-09-10
US20110071205A1 (en) 2011-03-24
CN102480953A (zh) 2012-05-30
WO2011029536A2 (fr) 2011-03-17
MX2012002299A (es) 2012-03-29
WO2011029536A3 (fr) 2011-10-13

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