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
  • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
  • A01N37/44—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
  • A01N37/50—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids the nitrogen atom being doubly bound to the carbon skeleton
• • 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
  • A01N25/02—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 liquids as carriers, diluents or solvents
  • A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
• • 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
  • A01N57/10—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds
  • A01N57/12—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds containing acyclic or cycloaliphatic radicals
• • 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
  • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
  • A01N59/26—Phosphorus; Compounds thereof

Definitions

• Synergistic fungicidal composition comprising a strobilurin-like compound.
• the subject of the present invention is a synergistic fungicidal composition
• a synergistic fungicidal composition comprising a strobilurin-like compound and a process using said composition and intended to protect, for curative or preventive purposes, cultures against fungal attacks.
• the subject of the present invention is therefore firstly a synergistic fungicidal composition comprising at least one compound A of formula (la) or (Ib):
• phosphorous acid derivatives such as metal phosphites such as fosetyl-Al
• phosphorous acid itself and its alkali or alkaline earth salts.
• the fungicidal composition according to the invention advantageously comprises the components A and B in a weight ratio A / B, of between 0.004 and 1, preferably between 0.0075 and 0.2.
• said fungicidal composition may contain a single compound B or more of such a compound, for example 1, 2 or 3 compounds B depending on the use for which it is intended.
• the composition may comprise more than one compound A, even if the compound of formula (Ia) (trifloxystrobin) is preferred in the present invention.
• the composition according to the invention then significantly improves the action of the active ingredients taken separately for a number of fungi particularly harmful to crops, such as in particular the vine or solanaceae. This improvement is reflected in particular by a reduction in the doses of each of the constituents, which is particularly advantageous for the user and the environment.
• the fungicide product thus has synergistic properties attested by the application of the method defined by Limpel, L.E., P.H. Schuldt and D. Lammont, 1962, Proc. NEWCC 16: 48-53, using the following formula, also known as Colby's formula:
• - E is the expected percentage inhibition of the growth of the fungus by a mixture of the two fungicides A and B at defined doses, respectively equal to a and b;
• - X is the percentage of inhibition observed by the fungicide and / or bactericide A at dose a,
• - Y is the percentage of inhibition observed by the fungicide and / or bactericide B at dose b. When the percentage of inhibition observed of the mixture is greater than E, there is synergy.
• the A / B ratio is between 0.005 and 1, preferably between 0.017 and 0.2 for all of the cultures envisaged.
• the A / B ratio will be between 0.004 and 0.1, preferably between 0.0075 and 0.05.
• the fungicidal composition according to the invention comprises, as active material, at least one compound A and at least one compound B in admixture with solid or liquid carriers, acceptable in agriculture and / or surfactants also acceptable in agriculture.
• solid or liquid carriers acceptable in agriculture and / or surfactants also acceptable in agriculture.
• the usual inert supports and the usual surfactants can be used.
• These compositions cover not only the compositions ready to be applied to the culture to be treated by means of a suitable device, such as a spraying device, but also the concentrated commercial compositions which must be diluted before application to the culture.
• active ingredient denotes the combination of at least one compound A with at least one compound B.
• compositions can also contain all kinds of other ingredients such as, for example, protective colloids, adhesives, thickeners, agents thixotropes, penetration agents, stabilizers, sequestrants, etc. More generally, compounds A and B can be combined with all the solid or liquid additives corresponding to the usual techniques of formulation.
• the compositions according to the invention usually contain from 0.05 to 95% (by weight) of active material, one or more solid or liquid supports and, optionally, one or more surfactants.
• support in the present description, is meant an organic or mineral, natural or synthetic material, with which the active material is combined to facilitate its application to the aerial parts of the plant. This support is therefore generally inert and it must be acceptable in agriculture, in particular on the treated plant.
• the support can be solid (clays, natural or synthetic silicates, silica, resins, waxes, solid fertilizers, etc.) or liquid
• the surfactant can be an emulsifying, dispersing or wetting agent of ionic or nonionic type or a mixture of such surfactants.
• compositions for agricultural use according to the invention can contain the active material within very wide limits, ranging from 0.05% to 95% (by weight). Their content of surfactant is advantageously between 5% and 40% by weight. Unless otherwise indicated the percentages given in this description, including the claims, are by weight.
• powders for dusting with an active material content of up to 100%
• granules in particular those obtained by extrusion, by compacting, by atomization, by impregnation of a granulated support.
• by granulation from a powder the content active ingredient in these granules being between 0.5 and 80% for the latter cases
• effervescent tablets or tablets are examples of powders for dusting (with an active material content of up to 100%) and granules, in particular those obtained by extrusion, by compacting, by atomization, by impregnation of a granulated support.
• the fungicidal composition according to the invention can also be used in the form of powders for dusting; one can also use a composition comprising 50 g of active material and 950 g of talc; one can also use a composition comprising 20 g of active material, 10 g of finely divided silica and 970 g of talc; these constituents are mixed and ground and the mixture is applied by dusting.
• liquid compositions or intended to constitute liquid compositions during application, mention may be made of solutions, in particular water-soluble concentrates, emulsions, concentrated suspensions, aerosols, wettable powders (or powder to spray), pasta, gels.
• solutions in particular water-soluble concentrates, emulsions, concentrated suspensions, aerosols, wettable powders (or powder to spray), pasta, gels.
• Wettable powders are usually prepared so that they contain 20 to 95% of active ingredient, and they usually contain, in addition to the solid support, 0 to 30% of a wetting agent, 3 20% of a dispersing agent, and, when necessary, 0.1 to 10% of one or more stabilizers and / or other additives, such as penetrating agents, adhesives, or anti-caking agents, dyes, etc.
• the active ingredients are intimately mixed in the appropriate mixers with the additional substances and ground with mills or other suitable grinders.
• pasta can be made.
• the conditions and methods of making and using these pastes are similar to those of wettable powders or spraying powders.
• Example PM 1 As an example, here are various compositions of wettable powders (or spraying powders): Example PM 1
• This wettable powder contains the same ingredients as in the previous example, in the proportions below:
• Example PM 4 - active ingredient 90%
• Example PM 5 - active ingredient 50%
• aqueous dispersions and emulsions for example the compositions obtained by diluting with water a wettable powder or an emulsifiable concentrate according to the invention, are included in the general scope of the present invention.
• the emulsions can be of the water-in-oil or oil-in-water type and they can have a thick consistency like that of a
• the fungicidal compositions according to the invention can be formulated in the form of water-dispersible granules also included within the scope of the invention. These dispersible granules, of apparent density generally comprised between approximately 0.3 and 0.6 have a particle size generally comprised between approximately 150 and 2000 and preferably between 300 and 1500 microns.
• the active material content of these granules is generally between approximately 1% and 90%, and preferably between 25% and 90%.
• the rest of the granule is essentially composed of a solid filler and optionally surfactant additives giving the granule properties of dispersibility in water.
• These granules can be essentially of two distinct types depending on whether the selected filler is soluble or not in water.
• the filler When the filler is water-soluble, it can be mineral or, preferably, organic. Excellent results have been obtained with urea.
• an insoluble filler it is preferably mineral, such as for example kaolin or bentonite.
• surfactants at a rate of 2 to 20% by weight of the granule of which more than half is, for example, constituted by at least one dispersing agent, essentially anionic, such as a polynaphthalene alkaline or alkaline earth sulfonate or an alkaline or alkaline earth lignosulfonate, the remainder being nonionic or anionic wetting agents such as an alkali or alkaline earth alkyl naphthalene sulfonate.
• dispersing agent essentially anionic, such as a polynaphthalene alkaline or alkaline earth sulfonate or an alkaline or alkaline earth lignosulfonate, the remainder being nonionic or anionic wetting agents such as an alkali or alkaline earth alkyl naphthalene sulfonate.
• the granule according to the invention can be prepared by mixing the necessary ingredients and then granulation according to several techniques known per se (bezel, fluid bed, atomizer, extrusion, etc.). It generally ends with a crushing followed by sieving to the particle size chosen within the limits mentioned above. It is also possible to use granules obtained as above and then impregnated with a composition containing the active material. Preferably, it is obtained by extrusion, operating as indicated in the examples below.
• Example GDI Dispersible granules In a mixer, 90% by weight of active material is mixed and
• Example GD2 Dispersible granules
• This mixture is granulated in a fluid bed, in the presence of water, then dried, crushed and sieved so as to obtain granules of size between
• These granules can be used alone, in solution or dispersion in water so as to obtain the desired dose. They can also be used to prepare combinations with other active materials, in particular fungicides, the latter being in the form of wettable powders, or aqueous granules or suspensions.
• compositions suitable for storage and transport they more advantageously contain from 0.5 to 95% (by weight) of active material.
• Another subject of the invention is a method of combating, for curative or preventive purposes, phytopathogenic fungi, for example crops or turf, characterized in that an effective and non-phytotoxic amount is applied to the aerial parts of the plants. of a combination of at least one compound A and at least one compound B, for example in a fungicidal composition according to the invention.
• the phytopathogenic fungi of cultures which can be combated by this process are in particular those: - from the group of oomycetes:
• Phytophthora infestans downy mildew of solanaceae, in particular potato or tomato
• Phytophthora citrophthora Phytophthora capsici, Phytophthora cactorum, Phytophthora palmivora, Phytophthora cinnamoni, Phytophthora megasperma, Phytophthora parasitica,
• Plasmopara viticola downy mildew
• Plasmopara halstedei unsunflower downy mildew
• Pseudoperonospora sp especially downy mildew of cucurbits and hops
• Bremia lactucae mildew of lettuce
• Peronospora tabacinae tobacco in particular Plasmopara viticola (downy mildew), Plasmopara halstedei (sunflower downy mildew), Pseudoperonospora sp (especially downy mildew of cucurbits and hops), Bremia lactucae (mildew of lettuce), Peronospora tabacinae tobacco),
• Pythium - of the Pythium family in particular Pythium ultimum, Pythium aphanidermatum, Pythium sylvaticum, Pythium irregulare, Pythium arrheomales,
• Alternaria solani Alternaria of solaneas, and in particular of tomato and potatoes
• Guignardia bidwellii - of the genus Alternaria, for example Alternaria solani (alternaria of solaneas, and in particular of tomato and potatoes)
• - of the genus Guignardia in particular Guignardia bidwellii
• Powdery mildew group for example grapevine powdery mildew (Uncinula necator); powdery mildew from vegetable crops, for example Erysiphe polygoni (cruciferous powdery mildew); Leveillula taurica, Erysiphe cichoracearum, Sphaerotheca fuligena; (powdery mildew of cucurbits, compounds, tomatoes);
• grapevine powdery mildew Uncinula necator
• powdery mildew from vegetable crops for example Erysiphe polygoni (cruciferous powdery mildew); Leveillula taurica, Erysiphe cichoracearum, Sphaerotheca fuligena; (powdery mildew of cucurbits, compounds, tomatoes);
• Erysiphe communis (beet and cabbage powdery mildew); Erysiphe pisi (pea, alfalfa powdery mildew); Erysiphe polyphaga (bean and cucumber powdery mildew);
• Erysiphe umbelliferarum (powdery mildew of umbelliferae, especially carrot);
• Sphaerotheca humuli hop powdery mildew
• Erysiphe graminis grain powdery mildew
• a classification made no longer by target mushrooms but by target crops can be illustrated as below:
• scab Venturia inaequalis
• powdery mildew Podosphaera leucotrichd
• moniliosis Monilia fructigena
• -citrus scab (Elsinoe fawcetti), melanosis (Phomopsis citri) and diseases caused by Phytophthora sp., -banane: Sigatoka (Mycosphaerella figiensis), root complex (Pythium sp),
• the fungicidal composition which is the subject of the invention is applied by means of various treatment methods such as:
• Spraying a liquid on the aerial parts of the crops to be treated is the preferred treatment method.
• effective and non-phytotoxic amount means an amount of composition according to the invention sufficient to allow the control or destruction of the fungi present or likely to appear on the cultures, and not causing for said cultures any significant symptom of phytotoxicity.
• Such an amount is likely to vary within wide limits depending on the fungus to be combated, the type of crop, the climatic conditions, and the compounds included in the fungicidal composition according to the invention. This quantity can be determined by systematic field tests, within the reach of those skilled in the art.
• the doses of use during the implementation of the method according to the invention will generally then be: on vines, vegetable, solan, banana, arboriculture, citrus crops:
• composition according to the invention of between 525 and 5500 g / ha, preferably between 1050 and 3200 g / ha.
• composition according to the invention of between 5100 and 25500 g / ha, preferably between 7150 and 20350 g / ha.
• Example 1 In vivo test of the association of (la) with fosetyl-Al on Plasmopara viticola (downy mildew of the vine) by preventive treatment 72 hours before contamination.
• the fungicides tested are:
• COMPOUND A (IA - trifloxystrobin): as a pure active ingredient
• COMPOUND B WG formulation containing 800g of fosetyl-Ai / kg.
• the fungicidal compositions tested are as follows:
• COMPOUND B at doses of 160 - 320 - 640 and 1280 ppm of fosetyl-Al
• Example 2 In vivo test of the association of (Ib) with fosetyl-Al on Plasmopara viticola (downy mildew) by preventive treatment 72 hours before contamination.
• the fungicides tested are:
• COMPOUND B WG formulation containing 800g of fosetyl-Al / kg.
• the fungicidal compositions tested are as follows:
• COMPOUND B at doses of 80 - 160 - 320 and 640 ppm of fosetyl-Al
• Vine plants (var. Chardonnay) 8 weeks old are treated with the fungicidal compositions at the doses mentioned above (3 repetitions of two plants / dose). They are inoculated three days later by spraying the underside of the leaves with an aqueous suspension containing 100,000 spores of
• Plasmopara viticola / inoculum no The plants are then placed in a climate cell at 20 ° C, 100% RH (relative humidity) for 7 days. A notation is then carried out. This consists of estimating the leaf area supporting a sporulating infection (recognizable by the whitish down) and, by comparison with an untreated-contaminated control, defining the percentage of effectiveness according to the following formula:

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• Life Sciences & Earth Sciences (AREA)
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• Wood Science & Technology (AREA)
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• Engineering & Computer Science (AREA)
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• Pest Control & Pesticides (AREA)
• Agronomy & Crop Science (AREA)
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• Inorganic Chemistry (AREA)
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• Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

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• 1998
  • 1998-12-22 FR FR9816466A patent/FR2787295A1/fr active Pending
• 1999
  • 1999-12-22 AU AU18664/00A patent/AU1866400A/en not_active Abandoned
  • 1999-12-22 EP EP99962282A patent/EP1139748A1/fr not_active Withdrawn
  • 1999-12-22 KR KR1020017008030A patent/KR20010104318A/ko not_active Application Discontinuation
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  • 1999-12-22 CA CA002356818A patent/CA2356818A1/fr not_active Abandoned
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• 2001
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