WO2002045512A2 - Composition bactericide et fongicide contenant des polyphosphates de potassium et de sodium, destinee a proteger les cultures avant et apres les recoltes - Google Patents

Composition bactericide et fongicide contenant des polyphosphates de potassium et de sodium, destinee a proteger les cultures avant et apres les recoltes Download PDF

Info

Publication number
WO2002045512A2
WO2002045512A2 PCT/IB2001/002325 IB0102325W WO0245512A2 WO 2002045512 A2 WO2002045512 A2 WO 2002045512A2 IB 0102325 W IB0102325 W IB 0102325W WO 0245512 A2 WO0245512 A2 WO 0245512A2
Authority
WO
WIPO (PCT)
Prior art keywords
composition
polyphosphates
sodium
potassium
formula
Prior art date
Application number
PCT/IB2001/002325
Other languages
English (en)
Other versions
WO2002045512A3 (fr
Inventor
Attilio Formigoni
Original Assignee
S.I.P.C.A.M. Societa' Italiana Prodotti Chimici E Per L'agricoltura Milano S.P.A.
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
Priority claimed from IT2000MI002627 external-priority patent/IT1319678B1/it
Priority claimed from IT2001MI002175A external-priority patent/ITMI20012175A1/it
Application filed by S.I.P.C.A.M. Societa' Italiana Prodotti Chimici E Per L'agricoltura Milano S.P.A. filed Critical S.I.P.C.A.M. Societa' Italiana Prodotti Chimici E Per L'agricoltura Milano S.P.A.
Priority to AU2002218438A priority Critical patent/AU2002218438A1/en
Publication of WO2002045512A2 publication Critical patent/WO2002045512A2/fr
Publication of WO2002045512A3 publication Critical patent/WO2002045512A3/fr

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
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/26—Phosphorus; Compounds thereof

Definitions

  • the object of the present invention is thus a wide spectrum fungicide or bactericide composition having the characteristics specified heretofore and, in particular, a composition of this type containing sodium and potassium polyphosphates.
  • DESCRIPTION OF PRIOR ART The action of sodium and potassium polyphosphates for the preservation of alimentary products is in fact known since a long time, such polyphosphates being apt to control in said products the developing of colonies of fungi and bacteria. More recently, it has also been proposed to use such compounds in agriculture, to control some cryptogamic and bacterial diseases. Nonetheless, the prior art has still not proposed an anticryptogamic and antibacterial composition of practical and easy use, having an ascertained effectiveness on agricultural products before and after the harvest, such a composition being in fact the object of the present invention.
  • the state of prior art will be described hereinafter, after a brief introduction on the nature and characteristics of the polyphosphates.
  • the sodium and potassium polyphosphates are polymeric compounds known since several years, formed by more or less long chains of residues of metaphosphates, - (NaPO 3 ) n - or - (KPO 3 ) n -, where "n" is an average number, which may vary from 3 for the tripolyphosphates, up to several thousands for the highly polymerized compounds, having the different technical denominations reported hereunder.
  • the compounds having a low or an average polymerization are partially or very slowly water-soluble, sometimes with formation of gelatinous clots, and they are named “Graham's Salts”, or also genetically “metaphosphates”, or quoted as “glassy polyphosphates”, due to the glassy aspect of their crystalline state, or also improperly called “hexametaphosphates”, if with low polymerization.
  • sodium or potassium polyphosphates with high polymerization formed by compounds totally water-insoluble, having long polymeric chains of metaphosphates residues, and such polyphosphates are indicated as "Kurrol's Salts” or “Maddrell's Salts”, according to their higher or lower degree of polymerization.
  • suitable methods of analysis for example, paper chromatography or thin layer chromatography
  • Sodium or potassium polyphosphates can contain from 53% to 77% of phosphoric anhydride and from 46% to 20% of sodium or potassium oxide, and can be acid, neutral or basic, with a pH in the range between 1.7 and 9; said polyphosphates are produced according to various techniques, generally based on the dehydration of monobasic orthophosphates at high temperature and condensation in polymers.
  • the sodium and potassium polyphosphates can contain small amounts of orthophosphates, pyrophosphates and moisture, and, even though they are mostly linear polymers, they can also contain small quantities of cyclical compounds.
  • polyphosphates and especially tripolyphosphates and Graham's Salts, are industrially produced in great quantities, with known techniques and at relatively low costs, and they are widely used for the treatment of industrial and domestic waters, in detergents, as dispersants in clay processes, in the digging of oil wells, in the production of ceramics and various pigments, and for other industrial uses. Thanks to their low toxicity for man, sodium and potassium polyphosphates have moreover been used in the food industry as emulsifiers, dispersants and deflocculants for animal proteins - in cheeses, dried or concentrated milk, cold meats and salami, sausages or other foodstuffs - and also in the cosmetics industry, where they are used in tooth pastes and cream products.
  • US-A-3,691,091 (1972) describes the in vitro action of some orthophosphates, of pyrophosphates and of various sodium or potassium polyphosphates having a different degree of polymerization - without however indicating their P 2 O 5 content and pH - on fungin microorganisms attacking foodstuffs, such as malt extracts and fruit juices, as Penicillium italicum, Aspergillus nigrum and A. flavus, and on bacteria pathogenous for man.
  • the same patent describes, as being more effective in fruit juices, the sodium polyphosphates with polymeric chains comprising an average of 16 to 37 residues of metaphosphates; said sodium polyphosphates are water-insoluble but can be dissolved in a mixture with sodium polyphosphates, indicated as "hexametaphosphates", having 9 or 12 residues of metaphosphates.
  • Lebron C.I. et Al. (J. of Food Protection, 1989, 329-336) study the fungicide action of tetrasodium pyrophosphate, of sodium tripolyphosphate and of "glassy" sodium polyphosphate, both acid and alkaline, without however indicating the pH or the degree of polymerization and the P 2 O 5 content thereof.
  • These compounds, in powdered form, are added to wet corn in glass containers, inoculated with Aspergillus sp., Fusarium sp. and Penicillium sp., and the conclusion reached is that all the products have a certain action, the alkaline sodium polyphosphate being less effective than the acid one.
  • WO 98/07336 describes the use of sodium polyphosphates, having an acid pH in the range between 1.7 and 1.9, and containing from 70 to 77% of phosphoric anhydride and from 27 to 20% of sodium oxide, with 8-20 residues of metaphosphates, hardly water-soluble, for foodstuff preservation.
  • yeasts of the Saccaromyces cerevisiae type, and of the genera Debaryomyces sp., Pichia sp., Dekkera sp., Turalospora sp., Candida sp., and the like, or against moulds of the genera Fusarium sp., Aspergillus sp., Penicillium sp., Mucor sp., and the like, in foodstuffs like fruit juices, beer, tender cheeses, milk products like yoghourt, and foods derived from cereals.
  • acid polyphosphates mixed with neutral sodium polyphosphates, citrates, sorbates, or with tribasic orthophosphate, this last one being used to obtain a pH buffer effect.
  • WO 00/42853 describes the phytosanitary application, on different crops and against various diseases, of an extemporaneously prepared water solution of diphosphates or hexametaphosphates, and polyphosphates, to be separately and subsequently dissolved in water, in a predetermined order, under strong stirring. No information is given on the quantitative ratios between the different components of the mixture, except for the ratio of 2,5-3 : 1 between tetrasodium diphosphate or sodium hexametaphosphate, used as solubilization agents, and potassium polyphosphate, insoluble in water.
  • a water-soluble starch As an adhesive, but there is no indication or suggestion as to the addition of compounds apt to lower the surface tension of the water solutions, such as the surfactants.
  • an aqueous solution containing about 30% of potassium polyphosphate and about 70% of tetrasodium diphosphate or of sodium hexametaphosphate always adding starch, but without the final addition of tetrapotassium diphosphate and always without the addition of surfactants.
  • WO 99/15017 describes the use, against the cryptogamic diseases of plants, of mixtures of potassium orthophosphates with inorganic potassium phosphonates or with organic potassium phosphonates, of alkaline-earth metals, of aluminium or of ammonium, preferably in the form of water solutions, but no mixtures of this type are disclosed in combination also with polyphosphates.
  • the main object of the present invention is to provide a solid, powdered or granular, water-soluble or water-dispersible, fungicide and bactericide composition, ready for use, for crop protection before and after the harvest, having a high biological action against important plant diseases.
  • Another object of the invention is to provide a fungicide and bactericide composition having a mechanism of action, against the phytopathogenous agents, which is totally different from that of the other compounds used up-to-date, so as to result effective also against strains of fungi and bacteria which have become resistant to the compounds used since a long time.
  • a further object of the invention is to be able to dispose of a highly effective fungicide and bactericide composition which is not toxic for man, so that it can be used on different crops also near the harvest or after the harvest.
  • a still further fundamental object of the invention is to use a fungicide and bactericide composition which is particularly compatible with the environment, in that it is not dangerous for the animal and vegetal organisms, as well as being totally biodegradable, while releasing compounds which are useful as fertilizers.
  • a last, but not less important object of the present invention is, finally, to supply a fungicide and bactericide composition which is fairly economic and, in particular, with an optimum ratio between cost and effectiveness.
  • DESCRIPTION OF THE PREFERRED EMBODIMENTS After wide searches and experimental tests, both in open fields and in greenhouses, the Applicant has unexpectedly discovered that it is possible to obtain a solid fungicide and bactericide composition, powdered or granular, water-soluble or water-dispersible, ready for use, for crop protection before or after the harvest, with a high biological action, not toxic for man and for the environment, promptly biodegradable in products acting as fertilizers on plants, as well as involving low costs, by means of a synergistically effective and quantitatively variable combination of the following compounds: a) one or more potassium and/or sodium polyphosphates having the formula:
  • the potassium and sodium polyphosphates of formula (I) will preferably be selected in the group formed by the potassium or sodium polyphosphates of formula (I) with "n" higher than 1000, having a P 2 O 5 content between 53.5% and 61.5%, a level of potassium or sodium oxides between 46% and 38%, and a pH from 3 to 6 in a 1% aqueous solution, the potassium polyphosphates being preferred in respect of the similar sodium polyphosphates.
  • sodium polyphosphates of formula (I) will preferably be selected among the sodium polyphosphates with "n" between 16 and 40, having a P 2 O 5 content between 67% and 77%, a content of Na 2 O between 31% and 20%, and with a pH from 1.7 to 7.2 in a 1 % solution.
  • the preferred mixtures consist of the polyphosphates of formula (I) with one or more compounds selected in the group formed by: sodium bicarbonate or carbonate; sodium orthophosphates, pyrophosphates, phosphonates; sodium bicarbonate in presence of sodium or potassium orthophosphates and/or pyrophosphates and/or phosphonates, and/or of potassium bicarbonate; sodium carbonate in presence of sodium or potassium orthophosphates and or pyrophosphates and/or phosphonates, and/or of potassium carbonate; sodium orthophosphates in presence of sodium or potassium pyrophosphates and/or phosphonates, and/or of potassium orthophosphates; sodium pyrophosphates in presence of sodium or potassium phosphonates and/or of potassium pyrophosphates.
  • the preferred orthophosphates are disodium-, monosodium- and monopotassium- phosphate.
  • the preferred pyrophosphates are tetrasodium-, disodium- and tetrapotassium- pyrophosphate.
  • the preferred phosphonates are disodium- and monosodium- phosphonate.
  • the weight ratio between them may vary within ratios of 4:1 and 1:4, and preferably between 2 : 1 and 1:2.
  • the weight ratio between sodium and/or potassium polyphosphates of formula (I), on one side, and sodium or potassium salts of bicarbonates, carbonates, orthophosphates, pyrophosphates, phosphonates, on the other side can be between 4:1 and 1:8, and preferably between 2:1 and 1:4.
  • the weight ratio between sodium bicarbonate, on one side, and sodium or potassium salts of orthophosphates, pyrophosphates, phosphonates, as well as potassium bicarbonate, on the other side can vary from 8:1 to 1 :8 among the single components of the group, and preferably be between 4:1 and 1:4.
  • the weight ratio between sodium carbonate, on one side, and sodium or potassium salts of orthophosphates, pyrophosphates, phosphonates, as well as potassium carbonate, on the other side can vary from 8:1 to 1:8, and preferably be between 4:1 and 1:4. Within the same range can vary the weight ratio between sodium orthophosphates, on one side, and sodium or potassium pyrophosphates and phosphonates, as well as potassium orthophosphates, on the other side; and between sodium pyrophosphates, on one side, and sodium or potassium phosphonates, and potassium pyrophosphates, on the other side.
  • the active substances are deliquescent or hygroscopic, they can be adsorbed by suitable fine powdered inert fillers, both of mineral or vegetal origin - such as, for example, colloidal or precipitated or pyrogenic silica, or else finely ground anhydrous natural silicates (for instance, aluminum silicates, diatomite, kaolin, clays, bentonite, montmorillonite), and finely ground anhydrous vegetal residues - so as to make powdery such active substances.
  • suitable fine powdered inert fillers both of mineral or vegetal origin - such as, for example, colloidal or precipitated or pyrogenic silica, or else finely ground anhydrous natural silicates (for instance, aluminum silicates, diatomite, kaolin, clays, bentonite, montmorillonite), and finely ground anhydrous vegetal residues - so as to make powdery such active substances.
  • the possible presence of surfactants helps to cover more thoroughly the surfaces of the leaves and fruits of the treated products, putting them in more intimate contact with the fungicide and bactericide compositions, so as to improve the contact with the compounds showing a surface activity - such as bicarbonates and carbonates - and favour a higher absorption by the plants of the active substances showing a systemic activity inside the plants - such as polyphosphates, orthophosphates, pyrophosphates and phosphonates - thereby allowing to obtain an improved fungicide and bactericide action.
  • the surfactants are also useful to favour the dissolution and dispersion in water of the compositions according to the invention.
  • the surfactants in the form of powders or in the form of liquids adsorbed on inert powders, or, if possible, also in the form of clathrates with inclusion in urea adducts, can be selected in the group formed by the following compounds:
  • anionic surfactants from sodium or potassium salts for example, alkaline salts of fatty acids, eventually polyalcoxylated; salts of mono- and di-glycerids of fatty acids and their phosphate, sulphate, acetic, citric, tartaric and lactic esters; salts of dialkyl- sulphosuccinates; salts of alkyl-, alkylaryl- and tristiryl- phosphates or sulphates, eventually polyalcoxylated; salts of alkyl- sarcosinates, taurates or isetionates; salts of alkyl-, alkylaryl- and aryl- sulphonates; salts of ligninsulphonates; salts of polycarboxylates);
  • sodium or potassium salts for example, alkaline salts of fatty acids, eventually polyalcoxylated; salts of mono- and di-glycerids of fatty acids and their phosphate, sulphate,
  • non-ionic surfactants for example, alkylsorbitanes eventually polyalcoxylated; alkyl-, alkylaryl- and tristiryl- polyoxyalkylenes; copolymers etho-propoxylates; sucroglycerid and alkylglycoside esters, silicone surfactants;
  • amphoteric surfactants for example, lecithines, alkylaminocarboxylates as alkylaminoglycines, and betaine or imidazoline derivatives.
  • anionic surfactants preference is given to the compounds based on sodium salts, and particularly sodium salts of natural fatty acids, or to the surfactants based on phosphate derivatives.
  • non-ionic surfactants preference is given to the silicone surfactants, as silicone-glycol and silicone-glycol copolymers, or to polyglycols, eventually in the form of clathrates in urea adducts.
  • the percentage in weight of the surfactants, used in the compositions according to the invention can vary in relation to their surfactant power, and can anyhow be between 0.1% and 20%, with preferred percentages between 0.25% and 10%.
  • the substances with an adhesive action, which can be used, will be selected in the group formed by proteins of vegetal or animal origin, polysaccarides, natural or synthetic polymers, as glycerophtalic resins, polyvinyl alcohols, polymethacrylates.
  • vegetal proteins preference is given to the vegetal proteins, as the non-toasted soybean flour, the soya proteins and especially the concentrated ones, and the flours or proteins obtained from the seeds of other leguminous crops.
  • a further type of preferred vegetal proteins is the gluten of cereals, as the wheat or corn gluten. It is also possible to use animal proteins, as casein and derivatives, fish flours or egg albumen.
  • the percentage in weight of the adhesive substances can vary between 0.5% and 20%, with preferred percentages between 1% and 10%.
  • adjuvants use can also be made of antifoam compounds (for example, silicon compounds as alkylpolysiloxanes, preferably adsorbed or encapsulated in a water- soluble or water-dispersible matrix, or tridecyl-alcohol in powder form), and even of antibinders and adsorbents, or different inert fillers (for example, natural or synthetic silica of various types, different silicates, powders of mineral or vegetal origin, or also inorganic salts as sodium or potassium sulphates or nitrates).
  • antifoam compounds for example, silicon compounds as alkylpolysiloxanes, preferably adsorbed or encapsulated in a water- soluble or water-dispersible matrix, or tridecyl-alcohol in powder form
  • antibinders and adsorbents for example, natural or synthetic silica of various types, different silicates, powders of mineral or vegetal origin, or also inorganic salts as sodium or
  • composition according to the invention will be in the form of water-soluble or water-dispersible powder, more or less fine, eventually pre-ground; it is also possible to prepare water-soluble or water-dispersible granular formulations, containing suitable crumbling and dispersing surface-active substances, according to different techniques well known to the expert of the art, such as, for example, by spray-drying, by extrusion, by granulation in a fluid bed, or by granulation in a high-speed mixer or on a rotating disk.
  • Such formulations can have a variable content of active substances, for example
  • the doses of application of the composition according to the invention will be such as to allow spreading - with conventional means operating on the ground or by aircraft, through spraying or vaporisation - aqueous solutions or dispersions in quantities varying from 50 to 5000 litres per hectare, on field or greenhouse crops, spreading, for each application, sodium and/or potassium polyphosphates, together with sodium and/or potassium salts of bicarbonates and/or of carbonates and/or of orthophosphates and/or of pyrophosphates and/or of phosphonates, in quantities varying from 0.25 kg and 40 kg per hectare, preferably between 0.5 kg and 20 kg per hectare, according to the growth and type of treated crops, and the respective amounts of aqueous mixtures required for each treatment, and according to the diseases having to be controlled and to the more or less frequent rate of the treatments.
  • aqueous mixtures preference will be given to mixtures with a high volume of water (spreading, for example, 250-5000 litres per hectare), taking care to dissolve or disperse the fungicide or bactericide compositions in the total amount of water held in the containers of the spraying equipment, and always keeping in operation, in such equipment, the water stirrer or pumped return, so as to facilitate the full dissolution or dispersion of such compositions. Only in the case of compositions with a high water solubility, the water volumes can be reduced (for example, 50-250 litres per hectare) according to the actual solubility of such compositions.
  • the spraying or vaporisation of the fungicide or bactericide aqueous mixtures will have to be carried out after the full solution or dispersion in water of the compositions, so as to obtain a homogeneous covering of the crops treated with such mixtures.
  • Cryptogamic diseases which can be controlled on the field or in greenhouses, before the harvest, and they concern different crops, as grapevines and fruits (for example, pome, stone and citrus fruits, strawberries, kiwi, olives, bananas), vegetables (for example, cucurbitaceous, solanaceous and cruciferous plants, salads, onions, potatoes), cereals (for example, wheat, barley, rice, corn), plants for industrial use (for example, beets, rape seeds, peanuts, soybeans, cotton, hop, tea, coffee), fodder crops, ornamental plants, and others.
  • grapevines and fruits for example, pome, stone and citrus fruits, strawberries, kiwi, olives, bananas
  • vegetables for example, cucurbitaceous, solanaceous and cruciferous plants, salads, onions, potatoes
  • cereals for example, wheat, barley, rice, corn
  • plants for industrial use for example, beets, rape seeds, peanuts, soybeans, cotton, hop, tea, coffee
  • the cryptogamic diseases which can be controlled belong to various systematic families, as the Erysiphaceae (for example, of the genera Oidium, Uncinula, Sphaerotheca, Erysiphe, Podosphaera, Levellula); the Helotiaceae (for example, of the genera Botrytis, Monilia, Sclerotinia); the Peronosporaceae (for example, of the genera Plasmopara, Phytophtora, Bremia, Peronospora, Pseudoperonospora); and other families (for example, of the genera Venturia, Puccinia, Coryneum, Ascochyta, Septoria, Piricularia, Alternaria, Stemphylium, Cercospora).
  • the Erysiphaceae for example, of the genera Oidium, Uncinula, Sphaerotheca, Erysiphe, Podosphaera, Levellula
  • the cryptogamic diseases which can be controlled after the harvest on agricultural products preserved in warehouses or in refrigerators, belong for example to the genera Penicillium, Botrytis, Rhizopus, Gloeosporium, Mucor, Monilia, Alternaria, Geothricum, Phytophtora, Fusarium, and others, and they concern fruits (for example, pome, stone and citrus fruits, grapes, bananas, kiwi, strawberries), vegetables (for example, cucurbitaceous, solanaceous and cruciferous plants, salads, onions, potatoes), or cereals and fodder crops.
  • composition according to the invention also allows to control different bacterial diseases as, for example, the Erwinia amylovora and the Nectria galligena on pome fruits, the bacteriosis on different vegetables and crops, caused by Erwinia sp., Xanthomonas sp., Corynebacterium sp., Pseudomona sp., and the like.
  • the various treatments on fields can be repeated at more or less spaced intervals
  • the treatments with the composition according to the invention can be also alternated to treatments with other products, especially near the harvest, when other more toxic products can no longer be used.
  • the mechanism of action of orthophosphates, pyrophosphates and phosphonates, against the cryptogamic and bacterial diseases is not yet fully known, even if assumptions are made on various effects obtained through a systemic activity, after they have been absorbed by the plants, on the enzymatic systems of such plants, with the possible development of natural reactions of resistance against phytopathogenous agents.
  • polyphosphates apt to be used according to the invention and indicated in the examples given hereunder, have the followings characteristics (pH 1% in water):
  • GEROPON ® SDS-Rhodia Geronazzo S.p.A. Na dioctylsulphosuccinate; COHORT ® DC-Helena Chemical Co., U.S.A.: polyglycol urea clathrate; RHODORSIL ® EP6703-Rhodia Geronazzo S.p.A.: adsorbed polysiloxane; SIPERNAT ® 22 S - Degussa A.G., Germany: colloidal silica oxide.
  • EXAMPLE 1 In a mixer for powders, the different active substances are evenly mixed together, eventually with the surfactants, and with the various adjuvants or inert fillers, all finely powdered. Tables 1 and 2 indicate several compositions according to the invention.
  • EXAMPLE 2 To prepare a granular composition, one mixes together some finely powedered compounds, as indicated hereinafter for some compositions. Such mixtures are then dipped into a reduced amount of water, so as to obtain a fluid paste having the desired viscosity, which is pressed into an extruder provided with a spinneret having holes with a diameter of 1,5 mm. After said spinneret, there is a hot air fluid bed which dries up the small cylindrical granules coming out from the spinneret, so as to obtain a granular composition with cylindrical granules having a diamater between 0,8 and 1,6 mm, and a length of 1-2 mm, containing a small amount of residual humidity.
  • compositions suited to be granulated by extrusion, according to the process described heretofore, or to be turned into granules by other processes, as for example in a granulating fluid bed or with an agglomerating rotating disk, can be the following:
  • EXAMPLE 3 In a greenhouse with air conditioning, at temperatures between 20°C and 28°C and with a 60-80% relative humidity, some cucumber seedlings of the Marketer variety are cultivated in plastic pots of 10 cm., until the first two true leaves are formed. Eight pots - each containing one cucumber seedling - covering an overall surface of 1 square meter and positioned over a rotating disk, are sprayed with two De Vilbiss nozzles spreading 50 ml of aqueous dispersion (equivalent to 500 litres per hectare) with some fungicide compositions as reported in TABLE 1. Separately, eight pots for comparison tests are sprayed only with water, without being treated with fungicides.
  • compositions according to the invention is stronger than the sum of the activities of the single components, thus evidencing an unexpected phenomenon of synergy in the mixtures containing potassium polyphosphate (n>1000) with sodium bicarbonate (Composition N.l), and potassium polyphosphate with disodium orthophosphate, in the presence of a reduced dosage of bicarbonate (Composition N.2), or containing tetrasodium pyrophosphate, in the presence of a low dosage of bicarbonate (Composition N.3).
  • EXAMPLE 4 In a field cultivated with marrows of the Genoese variety, one defines plots of 16 square meters arranged in three blocks, leaving three plots with untreated plants for comparison tests. At intervals of seven days, three preventive treatments are carried out
  • compositions according to the invention are distributed. Seven days after the end of the treatments one checks the results on the surface of hundred leaves per plot, as an average percentage infected by the powdery mildew. The activity of the single compositions is then reckoned according to Abbott, that is, according to the percentage of reduced powdery mildew infection existing in the treated plots as compared with the average infection existing in the untreated plots.
  • composition N.4 EMPHOS ® D70-31P based on phosphates
  • Composition N.5 KINETIC ® DC based on silicone-glycol clathrate with urea
  • Composition N.8 the high dosage of the Composition N.14.
  • compositions N Dosags Kg/ha % Activitv 1 5 71 2 5 76 3 5 75 4 5 92 5 5 90 6 5 79 7 5 88 8 5 80
  • EXAMPLE 5 In a field of strawberries of the Senga Sengana variety, one defines plots of three rows of strawberries, 10 meters long, arranged in blocks with four replications. As the blossom starts, aqueous dispersions of some compositions according to the invention are sprayed on the various plots, using a motor-pump operating at a pressure of 15 atmospheres and spreading the equivalent of about 500 litres per hectare of aqueous mixtures. Four untreated plots are left for comparison tests, so as to check the level of the natural Botrytis disease as compared to the level of infection in the plots treated with the fungicide compositions. The fungicide treatments are repeated at weekly intervals, starting from the blossom up to seven days before picking the fruits; at each picking, the percentage of fruits infected by grey mould (Botrytis cinerea) is reckoned in each plot.
  • Botrytis cinerea the percentage of fruits infected by grey mould
  • compositions N Dosages Kg/ha % Fruits infected by Botrytis cinerea
  • Composition N Dosages Kg/ha % Clusters surface infected by
  • EXAMPLE 7 In a seven-year old orchard, with peach trees of the Venus variety, one defines plots of six trees arranged in four blocks. The treatments against the fruit rot, determined by Monilia laxa, are carried out with a motor-pump operating at a pressure of 25 atmospheres and spreading about 1000 litres of aqueous mixture per hectare. Four plots are left untreated for comparison tests. About one month before the harvest, four weekly spraying treatments are carried out, up to seven days before the harvest.
  • composition N Dosages Kg/ha % Peach fruits infected bv Monilia
  • the orchard suffers from various infections of apple powdery mildew (Podosphaera leucotricha) and of apple scab (Venturia inaequalis), and the activity of the anticriptogamic treatments is reckoned at the end of the infections on the basis, for the Podosphaera, of the average percentage of infected surface of hundred leaves per plot, and for the Venturia, on the average percentage of infected fruits.
  • apple powdery mildew Podosphaera leucotricha
  • apple scab Venturia inaequalis
  • compositions N Podosphaera leucotricha Venturia inaequalis
  • EXAMPLE 9 Apples of the Golden Delicious variety, after the harvest, are inoculated - by punctures - both with a culture of Penicillium expansum and, separately, with Botrytis cinerea.
  • One hundred apples for each type of inoculum are placed in a wooden box and said boxes are dipped for one minute into aqueous dispersions of compositions according to the invention, in comparison with commercial products.
  • Three boxes are used for each type of inoculum, for each composition and for each dosage, and three boxes for each inoculum are dipped only in water without any fungicides.
  • the apple boxes After drying up, the apple boxes are preserved for two months in a refrigerator at 1°C. The results, reckoned at the outlet of the fruits from the refrigerator, show the average percentages of infected fruits and are reported in TABLE 9.
  • Said Table shows the good activity of the compositions according to the invention against Penicillium and Botrytis on apples preserved in a refrigerator after the harvest.
  • compositions containing potassium polyphosphate (n>1000) in mixture with sodium polyphosphate (n 28) and with sodium bicarbonate (Composition N.9), or containing potassium polyphosphate (n>1000) in mixture with sodium carbonate (Composition N.l 1).
  • the treatments against the grapevine downy mildew are carried out with a motor-pump operating at a pressure of 20 atmospheres and spreading, for each treatment, the equivalent of about 1000 litres of aqueous mixture per hectare, so as to entirely cover the plants with the sprayed mixtures.
  • the treatments are started before the blossoming and are continued until the clusters have developed their natural colouring; they are carried out more or less every ten days.
  • a plot is left untreated for comparison tests, so as to get acquainted with the level of natural infection from downy mildew on the leaves and on the clusters, and be able to make the comparisons with the level of infection on the treated plants.
  • compositions N Dosages Kg/ha % Activity against Plasmopara viticola on leaves on clusters
  • EXAMPLE 11 In a six-year old espalier vineyard of the Trebbiano Romagnolo variety, one defines plots of eight grapevines arranged in blocks with four replications.
  • the treatments against the downy mildew (Plasmopara viticola) are carried out with the same technique described in Example 3, from the pre-blossom period until the clusters change their colouring.
  • the treatments are carried out more or less every ten days, and use is made - in respect of the compositions according to the invention - of Mancozeb 80 WP, before and during the blossom, and of an industrial Bordeaux Mixture with 20% of copper WP, after the blossom.
  • compositions according to the invention have a good activity against the grapevine downy mildew. Such an activity is improved if some surfactants are added in said compositions, as the GEROPON ® SDS (Compositions N.l 6 and N.l 8), or especially if use is made of the phosphate surfactant EMPHOS ® D 70-31 P (Compositions N.l 9 and N.24), or of the surfactant based on silicone-glycol clathrate with urea as KINETIC ® D C (Compositions N.20 and N.25).
  • GEROPON ® SDS Compositions N.l 6 and N.l 8
  • EMPHOS ® D 70-31 P Compositions N.l 9 and N.24
  • KINETIC ® D C Compositions N.20 and N.25
  • EXAMPLE 12 In a twentyfive-year old pear orchard of the Passacrassana variety, affected by bacterial diseases of Er-winia amylovora, some plots of twentyfive plants are defined, arranged in three blocks. Before the blossom and just after the blossom, five weekly treatments are carried out with a motor-pump at 20 atmospheres, spreading about 1000 litres of aqueous mixtures per hectare. Comparisons are made between some compositions according to the invention and copper treatments.
  • the results are checked two weeks after the end of the treatments and they are reckoned as an average percentage of the infected shoots in each plot.
  • compositions N Dosages Kg/ha % New infected sprouts 16 6.0 10.9

Landscapes

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

Abstract

L'invention concerne une composition bactéricide et fongicide, hydrosoluble ou hydrodispersable, en poudre ou granulaire, solide, prête à l'utilisation, permettant la protection des cultures avant et après les récoltes. Cette composition comporte une combinaison efficace synergétiquement et variable quantitativement des composés suivants : a) un ou plusieurs polyphosphates de potassiun et/ou de sodium représentés par la formule (I) : X-0[P(O)(OY)]n-X, dans laquelle X = H, K, Na ; Y = K, Na ; et « n » est un entier supérieur ou égal à 16 et représente le nombre moyen de métaphosphates polymères des différents polyphosphates, représentés par la formule (KPO3)n- ou (NaPO3)n- ; b) un ou plusieurs composés sélectionnés dans le groupe constitué par des sels de sodium ou de potassium de bicarbonates, de carbonates, d'orthophosphates, de pyrophosphates, de phosphonates ; c) avec ajout possible d'un ou plusieurs composés sélectionnés dans le groupe constitué par des surfactants et par des adhésifs, par d'autres adjuvants et par des charges inertes.
PCT/IB2001/002325 2000-12-05 2001-12-04 Composition bactericide et fongicide contenant des polyphosphates de potassium et de sodium, destinee a proteger les cultures avant et apres les recoltes WO2002045512A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002218438A AU2002218438A1 (en) 2000-12-05 2001-12-04 Polyphosphate microbicide for pre- and postharvest crop protecion

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT2000MI002627 IT1319678B1 (it) 2000-12-05 2000-12-05 Composizione funghicida e battericida per la protezione delle coltureprima e dopo il raccolto.
ITMI2000A002627 2000-12-05
ITMI2001A002175 2001-10-18
IT2001MI002175A ITMI20012175A1 (it) 2001-10-18 2001-10-18 Composizioni funghicida e battericida per la protezione delle coltureprima e dopo il raccolto

Publications (2)

Publication Number Publication Date
WO2002045512A2 true WO2002045512A2 (fr) 2002-06-13
WO2002045512A3 WO2002045512A3 (fr) 2002-09-19

Family

ID=26332764

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2001/002325 WO2002045512A2 (fr) 2000-12-05 2001-12-04 Composition bactericide et fongicide contenant des polyphosphates de potassium et de sodium, destinee a proteger les cultures avant et apres les recoltes

Country Status (2)

Country Link
AU (1) AU2002218438A1 (fr)
WO (1) WO2002045512A2 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007051694A1 (fr) * 2005-11-02 2007-05-10 Evonik Degussa Gmbh B01j 8/00 title: procede de delivrance d’une dispersion
EP1798212A2 (fr) * 2005-12-19 2007-06-20 Tilco Biochemie GmbH Préparation contenant du pyrophosphate pour l'amélioration et la fertilisation des sols
EP1874832A1 (fr) * 2005-04-13 2008-01-09 Siamons International Inc. Polymere antimicrobien inorganique, hydrosoluble et non toxique et procedes connexes
NL1033757C2 (nl) * 2007-04-25 2008-10-28 Nu3 B V Meststof voor potgrond.
WO2015063249A1 (fr) * 2013-11-04 2015-05-07 Müller Werner E G Modulateur de minéralisation osseuse basé sur une combinaison de polyphosphate/carbonate et d'activateurs anhydrase carbonique
CN106070396A (zh) * 2016-06-27 2016-11-09 安徽梅兰园林景观工程有限公司 一种植物杀菌剂及其制备方法
WO2017055555A1 (fr) * 2015-10-01 2017-04-06 Evertree Procédé de granulation de plantes moulues
WO2017055557A1 (fr) * 2015-10-01 2017-04-06 Evertree Composition à base de plantes moulues, de maltodextrine et de silicone
US11083674B2 (en) 2017-11-30 2021-08-10 Colgate-Palmolive Company Oral care compositions

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB861043A (en) * 1956-10-26 1961-02-15 Benckiser Gmbh Joh A Protective agents against the settling of micro-organisms, and against fungi, algae,protozoa and insects
DE1642141A1 (de) * 1967-01-03 1971-04-15 Stauffer Chemical Co Polyphosphate mit bakterizider Wirkung
WO1998007336A1 (fr) * 1996-08-22 1998-02-26 Bk Giulini Chemie Gmbh & Co. Ohg Utilisation de polyphosphates de sodium acides pour inhiber la germination de moisissures et de levures
WO1999015017A1 (fr) * 1997-09-19 1999-04-01 Foliar Nutrients, Inc. Compositions fongicides pour plantes renfermant des sels de phosphonate et de phosphate et leurs derives
DE19907034A1 (de) * 1998-09-19 2000-08-03 Darinphos Ag Basel Pflanzenpflegemittel für Kulturpflanzen
WO2001006862A1 (fr) * 1999-07-22 2001-02-01 Astaris Llc Polyphosphates antimicrobiens utilises dans le traitement des aliments
DE10007759A1 (de) * 2000-02-19 2001-08-23 Lang Helmut Pflanzenstärkungsmittel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07155153A (ja) * 1993-12-07 1995-06-20 Riken Vitamin Co Ltd 食品保存剤
JPH08268819A (ja) * 1995-03-29 1996-10-15 Sakae Funamizu リンゴ樹木病害、フラン病（菌糸）の侵食防止剤 並びに殺菌剤およびその使用方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB861043A (en) * 1956-10-26 1961-02-15 Benckiser Gmbh Joh A Protective agents against the settling of micro-organisms, and against fungi, algae,protozoa and insects
DE1642141A1 (de) * 1967-01-03 1971-04-15 Stauffer Chemical Co Polyphosphate mit bakterizider Wirkung
WO1998007336A1 (fr) * 1996-08-22 1998-02-26 Bk Giulini Chemie Gmbh & Co. Ohg Utilisation de polyphosphates de sodium acides pour inhiber la germination de moisissures et de levures
WO1999015017A1 (fr) * 1997-09-19 1999-04-01 Foliar Nutrients, Inc. Compositions fongicides pour plantes renfermant des sels de phosphonate et de phosphate et leurs derives
DE19907034A1 (de) * 1998-09-19 2000-08-03 Darinphos Ag Basel Pflanzenpflegemittel für Kulturpflanzen
WO2001006862A1 (fr) * 1999-07-22 2001-02-01 Astaris Llc Polyphosphates antimicrobiens utilises dans le traitement des aliments
DE10007759A1 (de) * 2000-02-19 2001-08-23 Lang Helmut Pflanzenstärkungsmittel

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE CA [Online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; retrieved from STN-INTERNATIONAL, accession no. 126:28023 CA XP002198376 & JP 08 268819 A (S.FUNAMIZU) 15 October 1996 (1996-10-15) *
DATABASE WPI Section Ch, Week 199533 Derwent Publications Ltd., London, GB; Class D13, AN 1995-250709 XP002198377 & JP 07 155153 A (RIKEN VITAMIN CO), 20 June 1995 (1995-06-20) *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1874832A1 (fr) * 2005-04-13 2008-01-09 Siamons International Inc. Polymere antimicrobien inorganique, hydrosoluble et non toxique et procedes connexes
EP1874832A4 (fr) * 2005-04-13 2012-03-28 Siamons Internat Inc Polymere antimicrobien inorganique, hydrosoluble et non toxique et procedes connexes
WO2007051694A1 (fr) * 2005-11-02 2007-05-10 Evonik Degussa Gmbh B01j 8/00 title: procede de delivrance d’une dispersion
EP1787714A1 (fr) * 2005-11-02 2007-05-23 Degussa GmbH Procédé pour débiter une dispersion
EP1798212A2 (fr) * 2005-12-19 2007-06-20 Tilco Biochemie GmbH Préparation contenant du pyrophosphate pour l'amélioration et la fertilisation des sols
EP1798212A3 (fr) * 2005-12-19 2008-06-25 Tilco Biochemie GmbH Préparation contenant du pyrophosphate pour l'amélioration et la fertilisation des sols
EP1992217A1 (fr) * 2007-04-25 2008-11-19 Nu3 B.V. Engrais pour terreau
NL1033757C2 (nl) * 2007-04-25 2008-10-28 Nu3 B V Meststof voor potgrond.
WO2015063249A1 (fr) * 2013-11-04 2015-05-07 Müller Werner E G Modulateur de minéralisation osseuse basé sur une combinaison de polyphosphate/carbonate et d'activateurs anhydrase carbonique
WO2017055555A1 (fr) * 2015-10-01 2017-04-06 Evertree Procédé de granulation de plantes moulues
WO2017055557A1 (fr) * 2015-10-01 2017-04-06 Evertree Composition à base de plantes moulues, de maltodextrine et de silicone
FR3041966A1 (fr) * 2015-10-01 2017-04-07 Ass F I D O P Composition comportant un broyat de plantes, de la maltodextrine et du silicone
FR3041965A1 (fr) * 2015-10-01 2017-04-07 Ass F I D O P Procede de granulation d'un broyat de plantes
CN106070396A (zh) * 2016-06-27 2016-11-09 安徽梅兰园林景观工程有限公司 一种植物杀菌剂及其制备方法
US11083674B2 (en) 2017-11-30 2021-08-10 Colgate-Palmolive Company Oral care compositions

Also Published As

Publication number Publication date
WO2002045512A3 (fr) 2002-09-19
AU2002218438A1 (en) 2002-06-18

Similar Documents

Publication Publication Date Title
AU2006284461B2 (en) Oxidation method and compositions therefor
EP1067837B1 (fr) Traitement au peracide pour lutter contre les organismes pathogenes dans les plantes en culture
US7087190B2 (en) Composition for the production of chlorine dioxide using non-iodo interhalides or polyhalides and methods of making and using the same
US8895044B2 (en) Food preservation compositions and methods
CN100496250C (zh) 一种农用消毒杀菌组合物、它们的制备方法与用途
CN100496245C (zh) 游霉素杀真菌剂的稳定水溶液
CA2353645C (fr) Nouveaux procedes pour proteger des plantes contre les pathogenes
JP2013515072A (ja) 過酸および２−ヒドロキシ有機酸組成物での物品の殺菌
WO2002045512A2 (fr) Composition bactericide et fongicide contenant des polyphosphates de potassium et de sodium, destinee a proteger les cultures avant et apres les recoltes
CN112155016B (zh) 一种异硫氰酸酯和氟吡菌酰胺组合物、制剂及应用
CA2327738A1 (fr) Extrait de citron et methodes de traitement
CN111802382A (zh) 一种互叶白千层精油配制的鲜切花保鲜剂
JP4764720B2 (ja) 環境保全型有害生物防除剤
EP2672824B1 (fr) Nouvelles compositions antifongiques
CN104936452B (zh) 新颖的抗真菌组合物
ITMI20012175A1 (it) Composizioni funghicida e battericida per la protezione delle coltureprima e dopo il raccolto
ITMI20002627A1 (it) Composizione funghicida e battericida per la protezione delle coltureprima e dopo il raccolto
EP3324744B1 (fr) Nouvelles formulations comprenant des phosphites
JP2963988B1 (ja) 農園芸用殺菌殺虫剤
WO2023152126A1 (fr) Combinaisons de lutte biologique, compositions et procédé d'utilisation
CN108651493A (zh) 一种含克菌丹与唑菌酯的杀菌组合物及其用途
WO2013000986A1 (fr) Nouvelles compositions antifongiques
CN103314969B (zh) 具有噻霉酮与二氰蒽醌的增效杀菌组合物
CN110432273A (zh) 一种含二氰蒽醌杀菌组合物
JPH06145002A (ja) 切花の鮮度保持剤および鮮度保持方法

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: A3

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase in:

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP