WO2004098287A1 - Composition et revetement de protection - Google Patents

Composition et revetement de protection Download PDF

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Publication number
WO2004098287A1
WO2004098287A1 PCT/SE2004/000673 SE2004000673W WO2004098287A1 WO 2004098287 A1 WO2004098287 A1 WO 2004098287A1 SE 2004000673 W SE2004000673 W SE 2004000673W WO 2004098287 A1 WO2004098287 A1 WO 2004098287A1
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WO
WIPO (PCT)
Prior art keywords
plant
coating
components
composition according
composition
Prior art date
Application number
PCT/SE2004/000673
Other languages
English (en)
Inventor
Sigfrid Svensson
Original Assignee
Professor Sigge & Martin Ab
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 Professor Sigge & Martin Ab filed Critical Professor Sigge & Martin Ab
Publication of WO2004098287A1 publication Critical patent/WO2004098287A1/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
    • A01N51/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds having the sequences of atoms O—N—S, X—O—S, N—N—S, O—N—N or O-halogen, regardless of the number of bonds each atom has and with no atom of these sequences forming part of a heterocyclic ring
    • 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
    • A01N25/00—Biocides, 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
    • A01N25/08—Biocides, 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 solids as carriers or diluents
    • A01N25/10—Macromolecular compounds
    • 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
    • A01N25/00—Biocides, 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
    • A01N25/24—Biocides, 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 ingredients to enhance the sticking of the active ingredients
    • 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
    • A01N25/00—Biocides, 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
    • A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
    • 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
    • A01N53/00—Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof

Definitions

  • the present invention concerns the field of plant protection. More specifically, the invention is concerned with a novel chemical composition that is useful for protecting plants.
  • the invention also relates to a protective coating suitable for protection of a plant, and to a method for protection of plant surfaces involving forming the coating on the plant surfaces using the composition.
  • the pine weevil Hylobius abietis
  • the pine weevil is an insect that can cause great damage on young tree plants or seedlings.
  • the beetle normally attacks the plant, especially coniferous trees, by climbing onto it from the ground and then eating the fresh bark. The removal of the bark results in damage and ultimately death of the plant. Attacks by the pine weevil can reduce the yield of the afforesting significantly and therefore poses a severe economical problem.
  • the pine weevil can vary in size from 7-14 mm, and it orients itself by the use of antennae and eyes. It has six legs with claws and "arolium", which is a type of suction device that enables the insect to move on vertical, glossy surfaces and even upside down on horizontal surfaces.
  • the international patent application WO 03/024216 suggests the use of a particulate material with a mean particle diameter in the range of 0.1-0.5 mm.
  • the particles are fixed in an elastic adhesive coating, produced from polymer or copolymer dispersions, e.g. polyacrylates, resins, alkyds, polysaccharides, and proteins.
  • polymer or copolymer dispersions e.g. polyacrylates, resins, alkyds, polysaccharides, and proteins.
  • cracks in the coating will inevitably occur as the plant grows, whereby the pine weevil can get access to the unprotected plant.
  • the international patent application WO 92/05699 discloses an insecticide composition which comprises, as an active ingredient, a divalent or polyvalent alcohol in combination with a film-forming agent and, optionally, a carrier and/or a nutrient.
  • a film-forming agent examples include water-soluble cellulose ether and polyethylene glycol . Allegedly, the composition can be washed down from the treated plant .
  • US patent 6,103,253 discloses a water-insoluble preparation comprising an organic solvent and a film- forming polymer, e.g. homopolymers or copolymers of esters of acrylic acid and/or methacrylic acid.
  • the preparation provides controlled release of an incorporated active substance, such as an insecticide. Films formed by the compositions are insoluble in water.
  • US patent 3,545,129 discloses a method of preparation of coated seeds.
  • a part of the coat comprises a coating material, a binder and a plasticizer.
  • the present invention provides according to one aspect an aqueous composition for protective coating of a plant, said composition comprising a first set of components which is capable of forming a coating on a surface of said plant, and a second set of components which has plant-protecting activity, wherein said coating is present as an extensible dry film in a dry environment, and is present as a wet film in a humid environment, which wet film is capable of releasing any expansion pressure on said film resulting from plant growth.
  • the present invention provides a protective coating for a plant, said coating comprising a first set of components which is capable of forming a coating on a surface of said plant, and a second set of components which has plant-protecting activity, wherein said coating is present as an extensible dry film in a dry environment, and is present as a wet film in a humid environment, which wet film is capable of releasing any expansion pressure on said film resulting from plant growth.
  • the present invention provides a novel use of a composition according to the invention for providing a protective coating of a plant, which coating is present as an extensible dry film in a dry environment, and is present as a wet film in a humid environment, which wet film is capable of releasing any expansion pressure on said film resulting from plant growth.
  • the present invention is based on the insight that the problem associated with the cracking of protective coatings applied to growing plants can be solved by employing a coating according to the invention.
  • This inventive coating is on the one hand extensible, so that the plant may grow naturally without being strangulated, and has on the other hand a capability to release any expansion pressure on the coating resulting from plant growth, which pressure would otherwise cause cracking of the coating and/or strangulation of the plant.
  • said wet film at least partially constitutes a gel in a humid environment .
  • said first set of components comprises an aqueous solvent, and said coating is formed by evaporation of said aqueous solvent.
  • said first set of components comprises a binder and a plasticizer.
  • the binder in the first set of components in the composition or coating of the present invention is suitably selected from the group consisting of polysaccharides and derivatives thereof.
  • said polysaccharides are selected from the group consisting of celluloses, starches, plant gums, capsular microbial polysaccharides, pectins, inulins, and algal polysaccharides.
  • said polysaccharides are selected from the group consisting of agar, locust bean gum, guar gum, and xanthan gum.
  • the plasticizer in the first set of components in the composition or coating of the present invention is suitably selected from the group consisting of glycerols, polyglycerols, dimethylsulphoxide, and formamide .
  • said first set of components further includes a polymeric polyamino compound.
  • said polymeric polyamino compound is polyethyleneimine.
  • said second set of components comprises at least one of the following: particles, insecticide, fungicide, pesticide, pigments, and deterring agent.
  • said second set of components comprises at least one of the following: pyrethrin, permethrin, permethrin analogues, such as cypermethrin and lambdacyhalothrin, and imidacloprid.
  • said second set of components comprises at least one of the following: cypermethrin, lambdacyhalothrin and imidacloprid.
  • said second set of components comprises particles having a size in the range of 10-1000 ⁇ m.
  • the present invention provides a method for protection of plant surfaces, comprising the following steps: applying an aqueous composition according to the invention onto said plant surfaces; allowing said composition to form a coating on said plant surfaces, said coating forming an extensible dry film in a dry environment and forming a wet film in a humid environment, which wet film is capable of releasing any expansion pressure on said film resulting from plant growth; and subjecting said plant surfaces to an environment, which at intervals is humid.
  • said wet film at least partially constitutes a gel in a humid environment .
  • said method is for protection of plant surfaces against microbial or insecticidal attack, such as attack by pine weevils.
  • a use of the first set of components according to the invention for providing a composition according to the invention for providing a composition according to the invention.
  • a use of the second set of components according to the invention for providing a composition according to the invention for providing a composition according to the invention.
  • a method of manufacturing a composition according to the invention comprising the following steps : providing a first set of components according to the invention; providing a second set of components according to the invention; admixing said first and said second sets of components into said composition.
  • the present invention provides according to a first aspect an aqueous composition for protective coating of a plant.
  • the composition comprises a first set of components which is capable of forming a coating on a surface of the plant.
  • the composition further comprises a second set of components which has plant-protecting activity.
  • the coating is suitably formed by application of the composition according to the invention onto a plant surface that it is desirable to protect.
  • the composition is useful for providing a protective coating of a plant .
  • a protective coating for a plant comprising a first set of components which is capable of forming a coating on a surface of the plant. Moreover, the coating comprises a second set of components which has plant-protecting activity.
  • the coating When applied to a plant, the coating is present as an extensible dry film in a dry environment, and is present as a wet film in a humid environment .
  • the wet film state offers the advantage that it has a capacity to expand and thus release any expansion pressure on the film resulting from plant growth.
  • protective coating refers to a coating suitable for application to a plant, i.e. such coatings are essentially non-harmful to the plant and are capable of adhering to the plant surfaces to which they are applied.
  • the coating provides protection for the plant to which it is applied, for example against various animals, pests, insects, and fungi.
  • the coating according to the invention provides the treated plant with protection against attacks from pine weevils.
  • coating refers to any kind of continuous layer over a surface.
  • a coating, or a film could cover the entire plant as well as a particular spot or surface area on a plant. It is preferred that the composition readily can form a coating on a treated surface upon exposure of the composition-treated surface to air, i.e. through vaporization of the solute, e.g. water.
  • the thickness of the coating or film thus formed is preferably less than 250 ⁇ m, more preferred less than 100 ⁇ m, even more preferred between 0.1 ⁇ m and 10 ⁇ m.
  • the composition according to the invention contains at least two sets of components: a first set of components that in itself has the capacity of forming a coating on a surface of a plant to which it is applied, and a second set of components which has plant-protecting activity.
  • set of components includes any number of components that are necessary or desirable in order to provide the wanted activity. Thus, a set means one or more components providing the desired activity.
  • the first set of components in the composition, and thus the coating provides the capacity of forming a dry film upon evaporation of volatile components, such as water, from the coating.
  • the coating according to the invention is under dry conditions present as a dry film on the plant.
  • the dry film is extensible, i.e. it is capable of extending together with the plant surface to which it is applied upon plant growth. This expansion intrinsically involves building-up of an expansion pressure exerted on the coating by the expanding plant.
  • a characteristic feature of the present invention is that the coating according to the invention also has the capacity of absorbing water and thus forming a wet film in a humid environment, such as when it rains, when there is a drizzle, or when the plant is watered.
  • the coating In the wet film state, the coating has the capacity to release the expansion pressure on the film that is the result of plant growth.
  • the strangulation of the coating experienced by the growing plant, resulting from the expansion pressure inherent in the dry film is remedied.
  • the coating in passing the wet film state is relieved of expansion pressure, the coating will not crack upon plant growth. As long as the growth continues and the coating is exposed to a humid environment at intervals, which is natural for growing plants, the coating will remain and expand, albeit thinner as the expansion progresses.
  • the coating according to the invention thus avoids the problem that the climate (mainly rain) slowly removes previously known coatings.
  • a plant coated with the composition according to the invention is exposed to rain or other moisture. This renders the coating according to the invention rather resistant to unwanted environmental degradation.
  • the plants may be watered at intervals in order to allow for release of any built-up expansion pressure from the plant .
  • the coating provided by the composition according to the invention at least partially constitutes a gel in a humid environment.
  • the coating is capable of, at least partially, forming a gel in its wet film state, further advantageous properties are provided.
  • the gel may absorb water up to a certain point. After it is saturated with water, the gel becomes water-resistant. Additional external water is not absorbed by the gel, and the components with plant- protecting activity in the coating are not diluted to such an extent that their protecting activity is lost.
  • the coating provided by the composition according to the invention can be formed by evaporation of solvent from the composition.
  • the coating can be formed via at least partial gel formation.
  • the coating according to the invention is suitable for protection of any plant surface structure that is not actively involved in photosynthesis, and that is exposed to moisture, such as rain, at intervals.
  • the plants may for example be seedlings or young plants, and they may be treated with the composition according to the invention either prior to planting or in the field.
  • the first set of components contained in the composition according to the invention provides the composition with the capability of forming a coating on a surface of a plant, to which the composition is applied.
  • the first set of components comprises a binder and a plasticizer.
  • Binders that are suitable for use in the composition according to the invention include polysaccharides and derivatives thereof, preferably of bacterial or plant origin.
  • the polysaccharide has a ⁇ -l,4-glycan backbone.
  • the polysaccharide may be selected from the group consisting of celluloses, starches, plant gums, capsular microbial polysaccharides, pectins, inulins, and algal polysaccharides.
  • preferred polysaccharides include agar, locust bean gum, guar gum, and xanthan gum.
  • the binder may be present in the solution in an amount of not more than about 10% (w/v) , such as from 1% (w/v) to 5% (w/v) .
  • Plasticizers that are suitable for use in the composition according to the invention include all environmentally acceptable plasticizers known to the skilled man.
  • the plasticizer may be selected from the group consisting of glycerols, polyglycerols, dimethylsulphoxide, and formamide.
  • the amount of plasticizer shall be such as to provide the resulting dry film with a desirable amount of extensibility in the dry state. This has the advantage that expansion (plant growth) of a plant surface covered by a film, resulting from application of the composition according to the invention, is possible in the dry state by building-up of an expansion pressure in the film. When passing the wet film state, the expansion pressure is released and a new, expanded shape is adopted by the coating.
  • the plasticizer may be present in the solution in an amount of from 0.1 to 10% (w/v), such as from 0.2% (w/v) to 2% (w/v) .
  • the first set of components includes at least one polymeric polyamino compound in addition to the binder.
  • polymeric polyamino compounds include cellulose or starch derivatives containing amino functions, chitosan, and aliphatic polymers containing amino functions.
  • the polymeric polyamino compound is polyethyleneimine .
  • the weight ratio between the binder and the polymeric polyamino compound is suitably in the range of from about 100:1 to 1:5, such as from 50:1 to 1:2.
  • Inclusion of the polymeric polyamino compound in the composition according to the invention has the advantage that the resulting coating obtains favorable properties, such as improved capability of gel formation.
  • the adhesion properties of the composition can be regulated by the lipophilicity of the polymeric polyamino compound.
  • polyethylene imine adheres particularly well to plant surfaces.
  • the binder together with the polymeric polyamino compound may be present in the solution in an amount of not more than about 10% (w/v) .
  • the second set of components in the composition has plant-protecting activity.
  • plant-protecting activity refers generally to any form of relevant protection for a plant, such as against various animals, pests, insects, and fungi.
  • the second set of components in the composition has plant-protecting activity against attacks from pine weevils.
  • Components with plant-protecting activity that are suitable for use in the composition according to the invention include both chemicals and physical hinders.
  • the components with plant- protecting activity may be particles, insecticides, fungicides, pesticides, pigments, and deterring agents.
  • chemicals that are useful in the composition according to the invention include e.g. pyrethrin, permethrin, permethrin analogues, such as cypermethrin and lambdacyhalothrin, and imidacloprid. Suitable concentrations of chemical agents are known by the skilled man in the art.
  • the current, known formulations of such chemicals are water solutions or suspensions with oils. When plant stems are soaked in such formulations, the chemical is partly absorbed in the bark, and after drying, the chemical is deposited on the bark surface.
  • particles that are useful in the composition according to the invention include particles made of any suitable material, such as glass pearls, Carborundum, sand, silica gel particles, fillings or glass fibers, calcinated clay materials, such as Leca particles, mineral particles, such as mica, vermiculite, dolomite and quartz particles, and rock particles, such as pumice and perlite particles.
  • the particles can have a size in the range of 10-1000 ⁇ m, such as 10-500 ⁇ m.
  • the particles have a size in the range of 10- 200 ⁇ m.
  • Suitable concentrations of particles in the compositions according to the invention depend to a large extent on the type of particles and are readily determined by the skilled man in the art.
  • compositions according to the invention may be formulated as, or prepared from, solutions, suspensions, emulsions, vapors, aerosols, spray mists, emulsifiable concentrates, flowable liquid concentrates, or wettable powders, which are readily diluted with water, other suitable environmentally acceptable solvent or oil carrier.
  • the compositions may also be formulated in suspension concentrates, microemulsions, and the like. It is preferred that the composition is an aqueous solution. Thus, a water-soluble polysaccharide is preferred to use in such a solution.
  • the solvent may also contain conventional additives, such as complexing agents, preservatives, plasticizers, detergents, etc. It is preferred to include detergents or other surface-active agents in the composition according to the invention. The amount thereof is preferably such that adherence of the composition to the plant surface is facilitated. The specific amount is readily determined by a person skilled in the art .
  • the viscosity of the applied composition may readily be varied by adjustment of the concentrations of the constituents.
  • the viscosity has importance for the adherence of the composition to the plant surface as well as the thickness and other properties of the coating. If the viscosity is increased considerably, the composition may be administrated using high pressure devices.
  • composition according to the invention may also include a suitable buffering system in order to maintain the pH of the resulting coating. This is desirable for the plant and its productivity and for handling of the composition.
  • Suitable pH ranges for the composition are from 1 to 12, preferably from 3 to 10, more preferably from 5 to 9.
  • a method for protection of plant surfaces comprising the following steps: applying an aqueous composition according to the invention onto the plant surfaces; allowing the composition to form a coating on the plant surfaces; and subjecting the plant surfaces to an environment, which at intervals is humid.
  • the resulting coating according to the invention forms an extensible dry film in a dry environment and forms a wet film in a humid environment.
  • the wet film is capable of releasing any expansion pressure on the film resulting from plant growth.
  • the wet film at least partially constitutes a gel in a humid environment.
  • the method according to the invention is particularly useful for protection of plant surfaces against microbial or insecticidal attack.
  • the method according to the invention is useful for protection of plant surfaces against attacks from pine weevils .
  • the composition according to the invention can be applied to the target plants in any suitable and convenient way, such as dipping and spraying. It is preferred that the composition is sprayed onto the plants.
  • aqueous solution containing locust bean gum (1.25 %, w/v), agar (0.001%, w/v), Lupasol SK (0.05%, w/v), neutral tensides (0.005%,w/v) , methylparaben (0.01%, w/v), glycerol (1%, w/v) and sodium bisulphite (0.005%, w/v) was added imidacloprid to a final concentration of 2.5 % (w/v) .
  • the resulting composition was applied as a coating onto the stems of spruce container seedlings and onto the stems of spruce bare root plants (0.1 1/m 2 ), and the composition was allowed to dry on the plants at room temperature for 12 h.
  • the plants were planted at a scarified clear-cut plantation site together with appropriate controls without any protective coating. Two months later, the plants were examined for signs of attack by the pine weevil. It was found that 70% of the control plants were dead or severely damaged, whereas only 5% of the plant seedlings protected with the coating were dead or severely damaged (small bite marks were registered on 40% of the seedlings) .
  • the plants were also examined year 2 after planting, when it was found that about 85 % of the unprotected plants were dead.
  • the examination year 2 revealed that only 10% of the coating-protected plants were dead or severely damaged.
  • Example 2 Pieces, approximately 5 cm, of stem from both spruce container seedlings and spruce bare root plants were treated with the composition of Example 1. Unprotected and protected, respectively, stem pieces were placed in plastic containers together with three pine weevils. The stem pieces were examined after one week, and it was found that more than 25% of the bark of the unprotected stem pieces had been eaten. Only 3 small bite marks (about 1 mm 2 ) had been eaten from the protected stem pieces, and the three pine weevils in the container with the protected stem pieces were dead.
  • Pieces, approximately 5 cm, of stem from both spruce container seedlings and spruce bare root plants were treated with the composition of Example 1.
  • the coated (protected) stem pieces were soaked in water for 5 h and were then allowed to dry again for 12 h at room temperature .
  • the protected stem pieces were then again placed in a plastic container together with three pine weevils. After one week, the three pine weevils in the container with the protected stem pieces were dead, leaving three similar bite marks as above.
  • Example 5 The plants were investigated for resistance towards attacks by the pine weevil as described in Example 1. Essentially similar results as in Example 1 were obtained, except that the bite marks from the pine weevil were smaller or non-existent.
  • Example 5 The plants were investigated for resistance towards attacks by the pine weevil as described in Example 1. Essentially similar results as in Example 1 were obtained, except that the bite marks from the pine weevil were smaller or non-existent.
  • Example 1 The plants were investigated as described in Example 1. It was found that the coating was essentially intact 2 years after application, without cracks or other damages. Only 10% of the protected plants were dead or severely damaged by pine weevil attacks year 1 and a further 10% were dead or severely damaged year 2. Among the unprotected control plants, 60% were dead from attacks by the pine weevil year 1, and a further 20% died year 2.
  • Example 1 The general procedure in Example 1 was repeated, but cypermethrin was used instead of imidacloprid.

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

Abstract

L'invention concerne une composition aqueuse utilisée dans le revêtement protecteur d'une plante. La composition comprend un premier ensemble de composants capables de former un revêtement sur une surface de ladite plante et un second ensemble de composants possédant une activité de protection des plantes. Le revêtement se présente sous la forme d'un film sec extensible dans un milieu sec et sous la forme d'un film humide dans un milieu humide. Le film humide est capable de libérer, sur le film, une pression d'expansion quelconque engendrée par la croissance de la plante. L'invention concerne également un revêtement protecteur pour une plante et un procédé de protection des surfaces des plantes consistant à appliquer la composition sur lesdites surfaces.
PCT/SE2004/000673 2003-05-05 2004-05-04 Composition et revetement de protection WO2004098287A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0301311-7 2003-05-05
SE0301311A SE0301311D0 (sv) 2003-05-05 2003-05-05 Protective composition and coating

Publications (1)

Publication Number Publication Date
WO2004098287A1 true WO2004098287A1 (fr) 2004-11-18

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WO (1) WO2004098287A1 (fr)

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WO2007033779A2 (fr) * 2005-09-20 2007-03-29 Bayer Cropscience Ag Nicotinyle, pyrethroide et cetoenole utilises comme formulation en gel ou en mousse pour des cultures sur plusieurs annees
WO2010064982A1 (fr) * 2008-12-03 2010-06-10 Lyckeby Coatings Ab Composition contenant un polysaccharide utile dans la formation d’un film protecteur sur des surfaces choisies parmi le béton, le métal, la pierre, le verre, le bois, un textile, un tissu, un tissage et du papier
EP3406140A1 (fr) * 2017-05-24 2018-11-28 Bayer CropScience AG Composition aqueuse adaptée à la protection de semis ou d'arbres

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WO1993025078A1 (fr) * 1992-06-16 1993-12-23 Oy Alko Ab Compositions et procedes pour enrober des graines
US6103253A (en) * 1994-08-27 2000-08-15 Lts Lohmann Therapie-Systeme, Gmbh Sprayable, film-forming active substance release systems for application to plants
WO2002079332A1 (fr) * 2001-03-28 2002-10-10 Polysaccharide Industries Ab Revetement protecteur
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WO2007033779A2 (fr) * 2005-09-20 2007-03-29 Bayer Cropscience Ag Nicotinyle, pyrethroide et cetoenole utilises comme formulation en gel ou en mousse pour des cultures sur plusieurs annees
WO2007033779A3 (fr) * 2005-09-20 2008-10-23 Bayer Cropscience Ag Nicotinyle, pyrethroide et cetoenole utilises comme formulation en gel ou en mousse pour des cultures sur plusieurs annees
WO2010064982A1 (fr) * 2008-12-03 2010-06-10 Lyckeby Coatings Ab Composition contenant un polysaccharide utile dans la formation d’un film protecteur sur des surfaces choisies parmi le béton, le métal, la pierre, le verre, le bois, un textile, un tissu, un tissage et du papier
US9249310B2 (en) 2008-12-03 2016-02-02 Lyckeby Starch Ab Polysaccharide containing composition useful in forming protective film on surfaces selected from concrete, metal, stone, glass, wood, cloth, tissue, weave and paper
EP3406140A1 (fr) * 2017-05-24 2018-11-28 Bayer CropScience AG Composition aqueuse adaptée à la protection de semis ou d'arbres
WO2018215280A1 (fr) * 2017-05-24 2018-11-29 Bayer Cropscience Ag Composition aqueuse adaptée à la protection de plants de semis ou d'arbres

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