EP2424353A2

EP2424353A2 - Composition containing pesticide, preservative agent and unbranched 1,2-alkanodiol

Info

Publication number: EP2424353A2
Application number: EP10714005A
Authority: EP
Inventors: Christian Sowa; John-Bryan Speakman; Wioletta Kuncewicz-Kupczyk
Original assignee: BASF SE
Current assignee: BASF SE
Priority date: 2009-04-27
Filing date: 2010-04-21
Publication date: 2012-03-07
Also published as: CN102413684A; WO2010124973A3; CN102413684B; WO2010124973A2; US20120046167A1; BRPI1007608A2; JP2012525327A

Abstract

The object of the present invention is an agrochemical composition containing pesticide, preserving agent and unbranched 1,2-alkanodiol having 5 to 10 carbon atoms. The invention further relates to a method for preparing this composition by mixing pesticide, preserving agent and unbranched 1,2-alkaodiol having 5 to 10 carbon atoms. In addition, the invention relates to using the composition for combating phytopathogenic fungi and/or undesired plant growth and/or undesired insect or mite infestation and/or for regulating the growth of plants as well as to using the composition for combating undesired insect or mite infestation on plants and/or for combating phytopathogenic fungi and/or for combating undesired plant growth, wherein seeds of useful plants are treated with the composition and finally to seeds treated with the composition.

Description

Composition containing pesticide, preservative and unbranched 1, 2-alkanediol

The present invention is an agrochemical composition containing pesticide, preservative and unbranched 1, 2-alkanediol having 5 to 10 carbon atoms. Furthermore, the invention relates to a process for the preparation of this composition by mixing pesticide, preservative and unbranched 1, 2-alkanediol having 5 to 10 carbon atoms. In addition, the invention relates to a use of the composition for controlling phytopathogenic fungi and / or undesired plant growth and / or undesired insect or mite infestation and / or for regulating the growth of plants, as well as a use of the composition for controlling unwanted insect or M aufbenfall on plants and or to control phytopathogenic fungi and / or to control undesired plant growth, treating crop seeds with the composition, and finally seeds treated with the composition. Combinations of preferred features with other preferred features are encompassed by the present invention.

EP 1 201 125 A1 discloses an endermic ointment composition containing 3-methoxybutanol and 1, 2-pentanediol. Furthermore, it is disclosed that the joint use of these products leads to a superior antiseptic effect.

EP 1 426 029 A1 discloses an emulsion composition containing 1,2-alkanediol, surfactant, oily substance and water as essential components.

WO 2003/069994 discloses the use of a mixture of two, three or more unbranched 1, 2-alkanediols as antimicrobial agent. As a further mixture component, an antimicrobial agent can be used in an amount, wherein the antimicrobial effect of the alkanediol mixture is synergistically enhanced.

Pillai et al. in the SÖFW-Journal, 2005, 131 (6), 13-22 ("1, 2-Pentanediol - a Multifunctional Ingredient for Personal Care Applications") disclose that 1,2-pentanediol has the preservative effect of a mixture of the preservatives phenoxyethanol, methylparaben , Butylparaben, propylparaben and isobutylparaben in cosmetic formulations.

The use of preservatives in agrochemical compositions has long been known. Without the addition or with too little addition of preservative, there are various problems, mainly due to the growth of microorganisms: formation of gas, so that the plastic cans or metal drums can burst with the agrochemical compositions; Formation of unpleasant odors associated with insecticidal or rodenticidal compositions could cause a repellent effect on insects or rodenticides; discoloration; pH changes to which some pesticides are sensitive; Change in viscosity caused by degradation of polysaccharide-containing thickeners, so that there may be problems in the spray application; or phase separation or sedimentation of emulsions or suspensions by microbial degradation of surfactants, which can lead to problems in the preparation of the tank mix and the application.

The problems mentioned in particular reduce the storage stability of the agrochemical compositions, since these are usually not stored in air-conditioned rooms, but outdoors. Theoretically, by adding high concentrations of preservatives, agrochemical compositions could be stabilized for a long time, so that the above-mentioned problems hardly occur. However, various preservatives, such as para-hydroxybenzoic acid and its esters, formaldehyde releasers, chlorhexidine, benzalkonium chloride, propionic acid, phenoxyethanol, are suspected of being allergenic or toxic.

The object of the present invention was therefore to find an agrochemical composition comprising pesticide and preservative which has a reduced concentration of preservative. Another object was that the antimicrobial effect of the preservative in the agrochemical composition is very high even at a reduced concentration. Furthermore, it was an object that the agrochemical composition to be found can continue to formulate problem-free, the usual agrochemical formulation adjuvants can be used, the usual agrochemical application techniques such as spraying or pickling can be used and / or the insecticidal or rodenticidal effect by unwanted odor or Taste is not affected.

The object has been achieved by an agrochemical composition comprising pesticide, preservative and unbranched 1, 2 alkanediol having 5 to 10 carbon atoms.

Preferred unbranched 1, 2 alkanediols having 5 to 10 carbon atoms are 1, 2-pentanediol, 1, 2-hexanediol, 1, 2-octanediol and 1, 2-decanediol. Particular preference is 1, 2-pentanediol. 1, 2-pentanediol is commercially available in various purities, for example, from at least 70 wt.% To at least 99.95 wt.%. In general, the composition according to the invention comprises from 0.01 to 10% by weight, preferably from 0.1 to 8% by weight, particularly preferably from 0.5 to 3% by weight, of the alkanediol.

The term pesticide (hereinafter also referred to as pesticide) denotes at least one active substance selected from the group of fungicides, insecticides, nematicides, herbicides, rodenticides, safeners and / or growth regulators, preferably insecticides, nematicides, herbicides, rodenticides, safeners and / or growth regulation tors. The expert understands pesticides usually those agents that are used in agrochemical compositions.

In a preferred embodiment, plant protection products are substances which are intended to: a) protect plants or living parts of plants and plant products from harmful organisms; (b) protect plants or living parts of plants and plant products from animals, plants or micro-organisms which are not harmful organisms; c) to influence the life processes of plants without serving their diet (such as growth regulators); and d) kill plants or inhibit or prevent the growth of plants.

It is well known to those skilled in the art that plant protection products are clearly defined and regulated by law, for example in legislation on the authorization of plant protection products, for the limitation of residues in food or in drinking water, for the protection of bees, for the correct application, for the prohibition of dangerous plant protection products such as DDT or lindane. The expert therefore distinguishes pesticides (such as funigzide) clearly from drugs (such as antimycotics, antibiotics or disinfectants) or cosmetic ingredients.

Preferred pesticides are fungicides, insecticides, rodenticides and herbicides, more preferably insecticides, rodenticides and herbicides. Also, mixtures of pesticides of two or more of the above classes may be used. One skilled in the art will be familiar with such pesticides as described, for example, in Pesticide Manual, 14th Ed. (2006), The British Crop Protection Council, London. Suitable insecticides are insecticides of the class of carbamates, organophosphates, organochlorine insecticides, phenylpyrazoles, pyrethroids, neonicotinoids, spinosines, avermectins, milbemycins, juvenile hormone analogs, alkylhalides, organotin compounds, nereistoxin analogues, benzoylureas, diacylhydrazines, METI antibodies. and insecticides such as chloropicrin, pymetrozine, flonicamide, clofentezine, hexythiazox, etoxazole, diafenthiuron, propargite, tetradifon, chlorfenapyr, DNOC, buprofezin, cyromazine, amitraz, hydramethylnone, acequinocyl, fluacrypyrim, rotenone, or their derivatives. Suitable fungicides are fungicides of the classes dinitroanilines, allylamines, anilinopyrimidines, antibiotics, aromatic hydrocarbons, benzenesulfonamides, benzimidazoles, benzisothiazoles, benzophenones, benzothiadiazoles, benzotriazines, benzylcarbamates, carbamates, carboxamides, carboxylic acid amides, chloronitriles, cyanoacetamides, cyanoimidazoles, cyclopropanecarboxamides, dicarboximides, di hydroxides, dinitrophenyl crotonates, dithiocarbamates, dithiolanes, ethylphosphonates, ethylaminothiazolecarboxamides, guanidines, hydroxy (2-amino) pyrimidines, hydroxyanilides, imidazoles, imidazolinones, inorganics, isobenzofuranones, methoxyacrylates, methoxycarbamates, morpholines, N-phenylcarbamates, oxazolidinediones , Oximinoacetates, oximinoacetamides, peptidylpyrimidine nucleosides, phenylacetamides, phenylamides, phenylpyrroles, phenylureas, phosphonates, phosphorothiolates, phthalamic acid. phthalimides, piperazines, piperidines, propionamides, pyridazinones, pyridines, pyridinylmethylbenzamides, pyrimidinamines, pyrimidines, pyrimidinone-dehydrazone, pyrroloquinolinones, quinazolinones, quinolines, quinones, sulfamides, sulfamoyltriazoles, thiazole-carboxamides, thiocarbamates, thiophanates, thiophenecarboxamides, toluamides, Triphenyltin compounds, triazines, triazoles. Suitable herbicides are herbicides of the classes of acetamides, amides, aryloxyphenoxypropionates, benzamides, benzofuran, benzoic acids, benzothiadiazinones, bipyridylium, carbamates, chloroacetamides, chlorocarboxylic acids, cyclohexanediones, dinitroanilines, dinitrophenol, diphenyl ethers, glycines, imidazolinones, isoxazoles, isoxazolidinones, nitriles, N-phenylphthalimides , Oxadiazoles, oxazolidinediones, oxyacetamides, phenoxycarboxylic acids, phenylcarbamates, phenylpyrazoles, phenylpyrazolines, phenylpyridazines, phosphinic acids, phosphoroamides, phosphorodithioates, phthalamates, pyrazoles, pyridazinones, pyridines, pyridinecarboxylic acids, pyridinecarboxamides, pyrimidinediones, pyrimidinyl (thio) benzoates, quinoline - Carboxylic acids, semicarbazones, sulfonylaminocarbonyltriazolinones, sulfonylureas, tetrazolinones, thiadiazoles, thiocarbamates, triazines, triazinones, triazoles, Triazolino- ne, triazolocarboxamides, triazolopyrimidines, triketones, uracils, ureas. Suitable classes of rodenticides include anticoagulants, inorganic rodenticides, organochlorine rodenticides, organophosphorus rodenticides, pyrimidinamine rodenticides, thiourea rodenticides, urea rodenticides.

In one embodiment, the pesticide contains an insecticide, preferably the pesticide is at least one insecticide. In a further embodiment, the pesticide contains a fungicide, preferably the pesticide consists of at least one fungicide. Preferred fungicides are pyraclostrobin, metconazole and epoxiconazole. In a further embodiment, the pesticide comprises a herbicide, preferably the pesticide consists of at least one herbicide. In a further embodiment, the pesticide comprises a rodenticide, preferably an anticoagulant, in particular coumarin derivatives, particularly preferably flocoumafen and difenacoum. Also preferred are mixtures of an anticoagulant with ergocalciferol or vitamin D3.

The composition according to the invention usually comprises 0.1 to 70% by weight of pesticide, preferably 1 to 50% by weight, in particular 3 to 30% by weight, based on the composition.

Preservatives are generally those compounds added to agrochemical compositions to increase their shelf life against the action of microorganisms (such as bacteria and fungi), insects and other microorganisms. Preferred preservatives have a bactericidal and fungicidal, particularly bactericidal action.

Examples of preservatives are benzoic acid, its esters and salts, para-hydroxybenzoic acid (paraben), their esters and salts, propionic acid and its salts, Salicylic acid and its salts, 2,4-hexadienoic acid (sorbic acid) and its salts, formaldehyde and paraformaldehyde, 2-hydroxybiphenyl ether and its salts, 2-zincsulfidopyridine N-oxide, inorganic sulfites and bisulfites, sodium iodate, chlorobutanol, dehydroacetic acid, formic acid , 1, 6-bis (4-amidino-2-bromophenoxy) -n-hexane and its salts, 10-undecylenic acid and its salts, 5-amino-1,3-bis (2-ethylhexyl) -5-methyl-hexahydropyrimidine , 5-Bromo-5-nitro-1,3-dioxane, 2-bromo-2-nitro-1,3-propanediol, 2,4-dichlorobenzyl alcohol, N- (4-chlorophenyl) -N '- (3,4 -dichlorophenyl) urea, 4-chloro-m-cresol, 2,4,4'-trichloro-2'-hydroxy-diphenyl ether, 4-chloro-3,5-dimethylphenol, 1, 1 '- methylene bis (3 - (1-hydroxymethyl-2,4-dioximidazolidin-5-yl) urea), poly (hexamethylenediguanide) hydrochloride, 2-phenoxyethanol, hexamethylenetetramine, 1- (3-chloroallyl) -3,5,7- triaza-1-azonia-adamantane chloride, 1 (4-chlorophenoxy) -1 (1H-imidazol-1-yl) -3,3-dimethyl-2-buta-non, 1,3-bis (hydroxymethyl) -5, 5-dimethyl-2,4- imidazolidinedione, benzyl alcohol, octopirox, 1,2-dibromo-2,4-dicyanobutane, 2,2'-methylenebis (6-bromo-4-chlorophenol), bromochlorophene, dichlorophene, 2-benzyl-4-chlorophenol, 2-chloroacetamide, chlorhexidine, chlorhexidine acetate, chlorhexidine gluconate, chlorhexidine hydrochloride, 1-phenoxy-propan-2-ol, N-alkyl (C 12 -C 22) trimethylammonium bromide and chloride, 4,4-dimethyl-1,3-oxazo N-hydroxymethyl-N- (1,3-di (hydroxymethyl) -2,5-dioxo-imidazolide-in-4-yl) -N'-hydroxymethylurea, 1, 6-bis (4-amidinophenoxy) -n- hexane and its salts, glutaraldehyde, 5-ethyl-1-aza-3,7-dioxabicyclo (3.3. 0) octane, 3- (4-chlorophenoxy) -1,2-propanediol, hyamine, alkyl (C8-Ci8) -dimethylbenzyl-ammonium chloride, alkyl- (C8-Ci8) -dimethylbenzylammoniumbromide, alkyl- (C8-Ci8) dimethylbenzylammonium saccharinate, benzylhemiformal, 3-iodo-2-propynyl-butylcarbamate, sodium hydroxymethylaminoacetate, cetyltrimethylammonium bromide, cetylpyridinium chloride, and derivatives of 2H-isothiazol-3-one (so-called isothiazolone derivatives), such as alkylisothiazolones (eg 2 Methyl-2H-isothiazol-3-one, MIT; chloro-2-methyl-2H-isothiazol-3-one, CIT), benzisothiazolones (eg, 1,2-benzisothiazol-3 (2H) -one, BIT, commercially available Proxel ^® as grades from. ICI) or 2-methyl-4,5-trimethylene-2H-isothiazol-3-one (MTIT), and mixtures thereof.

Preferred preservatives are propionic acid and its salts, sorbic acid and its salts, benzoic acid, its esters and salts, para-hydroxybenzoic acid and its salts, C 1 -C 4 -alkyl-para-hydroxybenzoate (alkylparabens) and isothiazolone derivatives and mixtures thereof, 2-phenoxyethanol , Cetyltrimethylammonium bromide, cetylpyridinium chloride, benzylhemiformal and dichlorophen. Particularly preferably Ci-C ₄ -AIkVl- para-hydroxybenzoate (alkyl parabens) and isothiazolone derivatives, and mixtures thereof, and 2-phenoxyethanol.

Very particularly preferred preservatives are isothiazolone derivatives and mixtures thereof, such as alkylisothiazolones (eg MIT, CIT), benzisothiazolones (eg BIT), MTIT, mixtures of MIT and CIT or of MIT and BIT. Most preferred are mixtures of isothiazolone derivatives, such as mixtures of MIT and CIT or MIT and BIT, especially MIT and BIT. Such mixtures are generally in a weight ratio of from 10: 1 to 1:10, preferably from 5: 1 to 1: 5 and especially from 3: 1 to 1: 3.

The concentration of preservative to be used depends on the particular preservative used. Suitable concentrations are therefore mentioned by the manufacturer or in the prior art, for example:

- For Acticide® MBS from Thor GmbH (2.5% by weight BIT and 2.5% by weight MIT) is added for agrochemical formulations an addition of 25 - 250 ppm active ingredient (equivalent to 0.0025 to 0.025 wt.% Sum of BIT and MIT) recommended. - For Acticide® MBL Thor GmbH (2.5 wt.% BIT, 2.5 wt.% MIT and 8 wt.% 2-Bromo-2-nitro-1, 3-propanediol) is added for agrochemical formulations, an addition of 0.05 to 0.5 wt.% (Equivalent to 0.0065 to 0.065 wt.% Sum of the three active ingredients) is recommended.

- For Proxel® DL from Arch (9% by weight solution of BIT), an addition of 0.1-0.5% by weight (corresponding to 0.0001 to 0.0045% by weight BIT) is recommended for agrochemical formulations ,

- For Proxel® BD20 from Arch (19.3% by weight suspension of BIT), an addition of 0.1-0.5% by weight (corresponding to 0.0193 to 0.0965% by weight BIT) is recommended for agrochemical formulations ,

The concentration of preservative to be used in the composition of the invention therefore also depends on the particular preservative used, but it is usually lower than recommended by the manufacturer of the preservative or in the lower part of the manufacturer's recommendation. The skilled artisan can determine a suitable concentration of the preservative in simple preliminary experiments: To test the durability of a composition without the addition of 1, 2-alkanediol, as well as with the addition of alkanediol and reduced concentrations of preservative. Then one selects that reduced concentration of preservative which has the same high durability as the composition without alkanediol.

In general, the composition according to the invention comprises less than 0.5% by weight, preferably less than 0.1% by weight, more preferably less than 0.05% by weight and in particular less than 0.02% by weight of preservative based on the composition. Concentration information for mixtures of preservatives refers to the

Sum of all preservatives. For dilute aqueous or otherwise formulated preservatives, the concentration refers to the pure preservatives.

The composition according to the invention usually contains formulation auxiliaries, wherein the choice of auxiliaries usually depends on the specific application form or the active ingredient. Examples of suitable auxiliaries are solvents, solid Carriers, surface-active substances (such as surfactants, solubilizers, protective colloids, wetting agents and adhesives), organic and inorganic thickeners, antifreeze agents, defoamers, if necessary dyes and adhesives (eg for seed treatment), or bait materials and attractants (eg for baits).

As surfactants (adjuvants, wetting agents, adhesives, dispersants or emulsifiers) are the alkali, alkaline earth, ammonium salts of aromatic sulfonic acids, eg. B. of lignin (Borresperse ^® grades, Borregaard, Norway), phenol, naphthalene (Morwet ^® types, Akzo Nobel, USA) and dibutyl (nekal ^® types, BASF, Germany), and of fatty acids, alkyl and alkylarylsulfonates, alkyl, lauryl ether and fatty alcohol sulfates, as well as salts of sulfated hexa-, hepta- and octadecanols and of fatty alcohol glycol ethers, condensation products of sulfonated naphthalene and its derivatives with formaldehyde, condensation products of naphthalene or naphthalenesulfonic acids with phenol and Formaldehyde, polyoxyethylene noctylphenol ethers, ethoxylated isooctyl, octyl or nonylphenol, alkylphenyl, tributylphenyl polyglycol ethers, alkylarylpolyether alcohols, isotridecylalcohol, fatty alcohol ethylene oxide condensates, ethoxylated castor oil, polyoxyethylene or polyoxypropylene alkyl ethers, lauryl alcohol polyglycol ether acetate, sorbitol esters, lignin sulphite liquors and Proteins, denatured proteins, polysaccharides (eg methylc ellulose), hydrophobic state-difizierte strengths, polyvinyl alcohol (Mowiol ^® types, Clariant, Switzerland), Polycarboxyla- te (Sokalan ^® types, BASF, Germany), polyalkoxylates, polyvinylamine (Lupamin ^® - types, BASF, Germany), polyethyleneimine (Lupasol ^® types, BASF, Germany), polyvinylpyrrolidone and copolymers thereof.

Suitable surfactants are, in particular, anionic, cationic, nonionic and amphoteric surfactants, block polymers and polyelectrolytes. Suitable anionic surfactants are alkali, alkaline earth or ammonium salts of sulfonates, sulfates, phosphates or carboxylates. Examples of sulfonates are alkylarylsulfonates, diphenylsulfonates, alpha-olefinsulfonates, sulfonates of fatty acids and oils, sulfonates of ethoxylated alkylphenols, sulfonates of condensed naphthalene, sulfonates of dodecyl and tridecylbenzenes, sulfonates of naphthalenes and alkylnaphthalenes, sulfosuccinates or sulfosuccinamates. Examples of sulfates are sulfates of fatty acids and oils, of ethoxylated alkylphenols, of alcohols, of ethoxylated alcohols, or of fatty acid esters. Examples of phosphates are phosphate esters. Examples of carboxylates are alkyl carboxylates and carboxylated alcohol or alkylphenol ethoxylates.

Suitable nonionic surfactants are alkoxylates, N-alkylated fatty acid amides, amine oxides, esters or sugar-based surfactants. Examples of alkoxylates are compounds such as alcohols, alkylphenols, amines, amides, arylphenols, fatty acids or fatty acid esters which have been alkoxylated. For the alkoxylation, ethylene oxide and / or propylene oxide can be used, preferably ethylene oxide. Examples of N-alkylated fatty acid amides are fatty acid glucamides or fatty acid alkanolamides. Examples of esters are fatty acid esters, glycerol esters or monoglycerides. Examples of sugar-based surfactants are sorbitans, ethoxylated sorbitans, sucrose and glucose esters or alkyl polyglucosides. Suitable cationic surfactants are quaternary surfactants, for example quaternary ammonium compounds with one or two hydrophobic

Groups, or salts of long-chain primary amines. Suitable amphoteric surfactants are alkyl betaines and imidazolines. Suitable block polymers are block polymers of A-B or A-B-A type comprising blocks of polyethylene oxide and polypropylene oxide or of the A-B-C type comprising alkanol, polyethylene oxide and polypropylene oxide. Suitable polyelectrolytes are polyacids or polybases. Examples of polyacids are alkali metal salts of polyacrylic acid. Examples of polybases are polyvinylamines or polyethylene amines.

The composition of the invention may comprise various amounts of surfactants and surfactants. It can comprise from 0.1 to 40% by weight, preferably from 1 to 30 and in particular from 2 to 20% by weight, of the total amount of surface-active substances and surfactants, based on the total amount of the composition.

Examples of adjuvants are organically modified polysiloxanes such as BreakThruS 240 ^®; Alcohol alkoxylates such as Atplus ^® 245 ^® Atplus MBA 1303 ^®, Plurafac LF and Lutensol ^® ON; EO-PO block polymers, eg. B. Pluronic RPE 2035 ^® and Genapol B ^®; Alcohol ethoxylates, eg. B. Lutensol ^® XP 80; and sodium dioctylsulfosuccinate, e.g. B. Leophen ^® RA.

Examples of thickeners (ie, compounds that give the composition a modifiable tes flow behavior, ie high viscosity at rest and low viscosity in motion) are polysaccharides and organic and inorganic sheet minerals, such as xanthan gum (Kelzan ^®, CP Kelco), Rhodopol ^® 23 (Rhodia) or Veegum ^® (RT Vanderbilt) or attaclay ^® (Engelhard Corp.).

Examples of suitable antifreeze agents are ethylene glycol, propylene glycol, urea and glycerin.

Examples of defoamers are silicone emulsions (such as, for example, silicone ^® SRE, Wacker, Germany or Rhodorsil ^®, Rhodia, France), long chain alcohols, fatty acids, salts of fatty acids, organofluorine compounds and mixtures thereof.

Examples of colorants are both water-insoluble pigments and water-soluble dyes. Examples which may be mentioned are those under the names Rhodamine B, CI Pigment Red 112 and CI Solvent Red 1, Pigment blue 15: 4, Pigment blue 15: 3, Pigment blue 15: 2, Pigment blue 15: 1, Pigment blue 80 , Pigment yellow 1, Pigment yellow 13, Pigment red 48: 2, Pigment red 48: 1, Pigment red 57: 1, Pigment red 53: 1, Pigment orange 43, Pigment orange 34, Pigment orange 5, Pigment green 36, Pigment green 7, Pigment white 6, Pigment brown 25, Basic violet 10, Basic violet 49, Acid red 51, Acid red 52, Acid red 14, Acid blue 9, Acid yellow 23, Basic red 10, Basic red 108 known dyes and pigments.

Examples of adhesives are polyvinylpyrrolidone, polyvinyl acetate, polyvinyl alcohol and CEI luloseether (Tylose ^®, Shin-Etsu, Japan).

As bait materials, vegetable or animal food and feed are generally used. Suitable are, for example, cereal, grains, flakes or flours (for example, oats, wheat, barley, corn, soy, rice), coconut flakes u. flour, sugar syrups (obtained, for example, by hydrolysis of starch (glucose syrup), invert sugar syrup, beet sugar syrup, maple syrup), sugars (for example sucrose, lactose, fructose, glucose), nutcracker and the like. flour (for example hazelnut, walnut, almond), vegetable fat / oils (for example rapeseed oil, soy butter, sunflower oil, cocoa butter, peanut oil, peanut butter, corn oil), animal fats (oils, butter,

Lard, fish oil), proteins (for example skimmed milk powder, egg powder, protein hydrolysates) and minerals (for example table salt).

Examples of attractants are pheromones, yeast, ground crustaceans, feces, berries, chocolate, fish meal, meat, black pepper and flavor enhancers such as glutamates, especially sodium glutamate and disodium glutamate.

The compositions according to the invention are usually present in compositions customary for agrochemical application: 1. Compositions for dilution in water i) Water-soluble concentrates (SL, LS): 10 parts by weight of the active compounds are dissolved with 90 parts by weight of water or a water-soluble solvent , Alternatively, wetting agents or other adjuvants are added. When diluted in water, the active ingredient dissolves. This gives a composition with 10 wt .-% active ingredient content. ii) Dispersible Concentrates (DC): 20 parts by weight of the active compounds are dissolved in 70 parts by weight of cyclohexanone with the addition of 10 parts by weight of a dispersant, for. B. dissolved polyvinylpyrrolidone. Dilution in water gives a dispersion. The active ingredient content is 20% by weight iii) Emulsifiable Concentrates (EC): 15 parts by weight of the active compounds are dissolved in 75 parts by weight of xylene with the addition of calcium dodecylbenzenesulfonate and castor oil ethoxylate (in each case 5 parts by weight). Dilution in water results in an emulsion. The composition has 15% by weight of active ingredient content, iv) emulsions (EW, EO, ES): 25 parts by weight of the active compounds are dissolved in 35 parts by weight of xylene with addition of calcium dodecylbenzenesulfonate and castor oil ethoxylate (in each case 5

Parts by weight). This mixture is added by means of an emulsifying machine (eg UITERRA-Turrax) in 30 parts by weight of water and to a homogeneous emulsion brought. Dilution in water results in an emulsion. The composition has an active ingredient content of 25 wt .-%. v) Suspensions (SC, OD, FS): 20 parts by weight of the active ingredients are mixed with the addition of 10 parts by weight of dispersants and wetting agents and 70 parts by weight of water or an organic solvent in a stirred ball mill to a fine

Crushed active ingredient suspension. Dilution in water results in a stable suspension of the active ingredient. The active ingredient content in the composition is 20% by weight. vi) Water-dispersible and water-soluble granules (WG, SG): 50 parts by weight of the active ingredients are finely ground with the addition of 50 parts by weight of dispersants and wetting agents and by means of technical equipment (eg., Extrusion, spray tower, fluidized bed) water-dispersible or water-soluble granules produced. Dilution in water results in a stable dispersion or solution of the active ingredient. The composition has an active substance content of 50% by weight. vii) Water-dispersible and water-soluble powders (WP, SP, SS, WS): 75 parts by weight of the active compounds are ground in a rotor-stator mill with the addition of 25 parts by weight of dispersing and wetting agents and silica gel. Dilution in water results in a stable dispersion or solution of the active ingredient. The active ingredient content of the composition is 75% by weight. viii) Gels (GF): In a ball mill, 20 parts by weight of the active ingredients, 10 parts by weight of dispersant, 1 part by weight of swelling agent ("gelling agent") and 70 parts by weight of water or an organic solvent are added Dilution with water results in a stable suspension with 20% by weight of active ingredient content 2. Compositions for direct application ix) Dusts (DP, DS): 5 parts by weight of the active ingredients are finely ground and mixed with This gives a dust with 5 wt .-% active ingredient, x) granules (GR, FG, GG, MG): 0.5 parts by weight of the active ingredients are finely ground and with Common processes are extrusion, spray-drying or fluidized bed, resulting in a granulate for direct application with 0.5% by weight active ingredient, xi) ULV solutions (UL): 10% by weight. Parts of the active ingredients are in 90 parts by weight of a organic solvents z. B. XyIoI solved. This gives a composition for the direct application with 10 wt .-% active ingredient content.

Preference is given to liquid compositions, such as water-soluble concentrates, emulsions or suspensions, which comprise at least 10% by weight, preferably 20% by weight, particularly preferably at least 40% by weight, of water. In a further preferred embodiment, solid compositions, such as baits, granules or gels, which comprise at least 1% by weight, preferably at least 3% by weight, particularly preferably at least 5% by weight of water, are preferred. The composition of the invention is usually diluted before use to produce the so-called tank mix. For dilution come mineral oil fractions of medium to high boiling point, such as kerosene or diesel oil, coal tar oils and oils of vegetable or animal origin, aliphatic, cyclic and aromatic hydrocarbons, eg toluene, xylene, paraffin, tetrahydronaphthalene, alkylated naphthalene or its derivatives, methanol, Ethanol, propanol, butanol, cyclohexanol, cyclohexanone, isophorone, strongly polar solvents, for example dimethyl sulfoxide, N-methylpyrrolidone or water into consideration. Preferably, water is used. The diluted composition is usually applied by spraying or atomizing. To the tank mix oils of various types, wetting agents, adjuvants, herbicides, bactericides, fungicides can be added immediately before use (tank mix). These agents can be added to the compositions according to the invention in a weight ratio of 1: 100 to 100: 1, preferably 1:10 to 10: 1. The pesticide concentration in the tank mix can be varied in larger areas. In general, they are between 0.0001 and 10%, preferably between 0.01 and 1%. The application rates in the application in crop protection, depending on the nature of the desired effect between 0.01 and 2.0 kg of active ingredient per ha.

The present invention also relates to the use of a composition of the invention for controlling phytopathogenic fungi and / or undesired plant growth and / or undesired insect or mite infestation and / or for regulating the growth of plants, wherein the composition of the respective pests, their habitat or the plants to be protected from the respective pest, the soil and / or undesirable plants and / or the crops and / or their habitat. Furthermore, the invention relates to the use of a composition according to the invention for controlling unwanted insect or mite infestation on plants and / or for controlling phytopathogenic fungi and / or for controlling unwanted plant growth, treating crop seeds with the composition.

Furthermore, the invention relates to seed treated with a composition according to the invention, preferably pickled. The skilled person understands by the treatment of seeds the dressing of seeds, wherein the composition remains on the seed. The seed particularly preferably contains the composition according to the invention. This composition can be applied to the seed undiluted or, preferably, diluted. In this case, the corresponding composition can be diluted 2 to 10 times, so that 0.01 to 60% by weight, preferably 0.1 to 40% by weight of pesticide is present in the compositions to be used for the stain. The application can be done before sowing. The treatment of plant propagation material, in particular the treatment of seed, are known to the person skilled in the art and are carried out by dusting, coating, Pelleting, dipping or soaking the plant propagating material, wherein the treatment is preferably carried out by pelleting, coating and dusting, so that z. B. premature germination of the seed is prevented. In the treatment of state goods, pesticide quantities of 1 to 1000 g / 100 kg, preferably 5 to 100 g / 100 kg of propagating material or seed are generally used.

The invention further relates to a process for the preparation of a composition according to the invention by mixing pesticide, preservative and unbranched 1, 2-alkanediol having 5 to 10 carbon atoms. Preferred pesticides, preservatives and 1,2-alkanediols are as described above. The components are blended by methods known to those skilled in the art and commonly used to prepare the desired composition.

The invention further relates to a use of unbranched 1, 2-alkanediol having 5 to 10 carbon atoms for use in compositions comprising pesticide and preservative. The alkanediol is preferably used to increase the bactericidal effect of the preservative. Preferably, the composition additionally contains a formulation aid. Preferably, the pesticide is a herbicide, insecticide or rodenticide, more preferably a herbicide or rodenticide. Preferably, the alkanediol is used in the composition to increase the preservative's preservative effect. More preferably, the alkanediol is used in the composition to enhance the preservative effect of isothiazolone derivatives and mixtures thereof, such as alkylisothiazolones (e.g., MIT, CIT), benzisothiazolones (e.g., BIT), MTIT, mixtures of MIT and CIT, or MIT and BIT. Most preferred are mixtures of isothiazolone derivatives, such as mixtures of MIT and CIT or MIT and BIT, especially MIT and BIT.

Advantages of the present invention are that the agrochemical composition has a reduced concentration of preservative; that the antimicrobial effect of the preservative in the agrochemical composition is very high even at a reduced concentration; that the agrochemical composition continues to be easily formulated; that the usual agrochemical formulation adjuvants can be used; that the usual agrochemical application techniques such as spraying or pickling can be used; and that the insecticidal or rodenticidal effect is not impaired by undesirable odor or taste.

Examples

Preservative: An aqueous formulation of 2.35-2.65 weight percent 2-methyl-4-isothiazolin-3-one (MIT) and 2.35-2.65 weight percent 1,2-benzisothiazolin-3-one (BIT), commercially available from Thor as Acticide® MBS. The manufacturer recommends using a concentration of 0.2-0.4% by weight in aqueous products. Example 1 - Preparation of agrochemical formulations

First, 2.0 L each of the following aqueous suspension concentrates were prepared:

A) suspension concentrate A ("SC A") 400 g / l pyrimethanil (fungicide)

50 g / l sulphonate-containing dispersant 2 g / l thickener (xanthan gum) 1, 0 g / l Silicone defoamer filled up with water to 1000 ml

B) Suspension Concentrate B ("SC B") 50 g / l fluquinconazole (fungicide) 150 g / l pyrimethanil

50 g / l Sulfonate-containing dispersant 4 g / l thickener (xanthan gum) 1, 0 g / l Silicone defoamer filled up with water to 1000 ml

Example 2 - Germ count investigation on SC A

Fifteen samples were prepared by adding 100 g suspension concentrate A with the amounts of preservative (0.125 g / l, 0.25 g / l, 0.5 g / l, 1 g / l and 2 g / l) given in Table 1. and PDO (10, 20, and 30 g / L) mixed. As a control, a sample was tested only with suspension concentrate A.

10 ml each of the samples 1 to 16 was inoculated with a germ mixture consisting of various bacterial species (such as Bacillus subtilis, Escherchia coli, Pseudomonas aeruginosa, Staphylococcus aureus), homogenized and incubated at 23 ° C. The number of bacteria per gram of sample (cfu / g) was determined immediately and after 24, 48 and 72 hours. In each case, about 1 g of the loaded sample was weighed exactly and spiked out in appropriate dilutions on 2% malt extract agar. The dilution of the loaded sample was carried out by homogenization with sterile water. To detect the bacteria, the malt plates were incubated for 3 days at 23 ° C. The control without preservative and without PDO showed a very high bacterial count of well over 50,000 cfu / g. The results are summarized in Table 1.

It has been shown that the addition of 1, 2-pentanediol to the agrochemical formulation, the effect of the preservative could be increased.

Table 1: Germ numbers [cfu / g]

Example 3 - Germ count investigation on SC B

The investigation was carried out as in Example 2, wherein instead of suspension concentrate A now suspension concentrate B was used. The results are summarized in Table 2. It has been shown that the addition of 1, 2-pentanediol to the agrochemical formulation, the effect of the preservative could be increased.

Table 2: Germ numbers [cfu / g]

Claims

claims

1. Agrochemical composition containing pesticide, preservative and unbranched 1, 2-alkanediol having 5 to 10 carbon atoms.

2. The composition of claim 1, wherein the alkanediol is 1, 2-pentanediol, 1, 2-hexanediol, 1, 2-octanediol or 1, 2-decanediol.

3. The composition of claim 1 or 2, wherein the alkanediol is 1, 2-pentanediol.

A composition according to any one of claims 1 to 3, wherein the composition is liquid and comprises at least 10% by weight of water.

A composition according to any one of claims 1 to 4, wherein the composition comprises from 0.01 to 10% by weight of alkanediol.

A composition according to any one of claims 1 to 5, wherein the composition comprises less than 0.5% by weight of preservative.

A composition according to any one of claims 1 to 6, wherein the preservative is propionic acid and its salts, sorbic acid and its salts, benzoic acid, its esters and salts, para-hydroxybenzoic acid and its salts, C 1 -C ₄ -alkyl para-hydroxybenzoate, isothiazolone Derivatives and mixtures thereof, 2-phenoxyethanol, cetyltrimethylammonium bromide, cetylpyridinium chloride, benzyl hemiformal or dichlorophen.

A composition according to any one of claims 1 to 7, wherein the preservative is an isothiazolone derivative or mixture thereof.

9. A process for the preparation of a composition according to claims 1 to 8, by mixing pesticide, preservative and unbranched 1, 2-alkanediol having 5 to 10 carbon atoms.

10. Use of unbranched 1, 2-alkanediol having 5 to 10 carbon atoms for use in agrochemical composition comprising pesticide and preservative.

1 1. Use of the composition according to any one of claims 1 to 8 for combating phytopathogenic fungi and / or undesired plant growth and / or undesired insect or mite infestation and / or for regulating the growth of plants, wherein the composition of the respective Pests whose habitat or plants to be protected from the respective pest, the soil and / or act on undesirable plants and / or crops and / or their habitat.

12. Use of the composition according to any one of claims 1 to 8 for controlling unwanted insect or mite infestation on plants and / or for controlling phytopathogenic fungi and / or for controlling undesired plant growth, treating seeds of crops with the composition.

13. Seed containing the composition according to any one of claims 1 to 8.