CN103190432A - Bactericide composition - Google Patents
Bactericide composition Download PDFInfo
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- CN103190432A CN103190432A CN2013100889181A CN201310088918A CN103190432A CN 103190432 A CN103190432 A CN 103190432A CN 2013100889181 A CN2013100889181 A CN 2013100889181A CN 201310088918 A CN201310088918 A CN 201310088918A CN 103190432 A CN103190432 A CN 103190432A
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- metalaxyl
- prochloraz
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- hymexazo
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Abstract
The invention relates to a prepared bactericide composition. A component A is selected from hymexazol, a component B is selected from metalaxyl and a component C is selected from prochloraz. The bactericide composition has an obvious synergism effect, and can prevent and cure both bakanae disease and damping off and the like of rice in seedling stage for once use.
Description
Technical field
The invention belongs to the disinfectant use in agriculture field, relate to a kind of microbicide compositions particularly.
Background technology
In the prior art, the bactericide that China is used for control rice seedling disease mainly contains the Prochloraz of seed soaking usefulness, splash on the seedbed Yong De hymexazo, metalaxyl etc.Prochloraz is used for soaking seed before the rice growing, and using method is easy, but only can prevent and treat bakanae disease of rice, and damping off is not had effect.Hymexazo, metalaxyl generally are used for paddy seedbed sprinkling and water method or spray-on process dispenser, the rice seedling damping off is had preventive effect, but bakanae disease is not had effect.
For this reason, Chinese patent 102417386A number open name is called " bactericidal composition that contains thiazole zinc " proposition a solution.Contain thiazole zinc in this kind composition and be selected from kresoxim-methyl with any one, pyraclostrobin, Fluoxastrobin, oxime bacterium ester, Enestroburin, Difenoconazole, fluorine ring azoles, Flusilazole, Tebuconazole, azoles alcohol, nitrile bacterium azoles, propiconazole, triazolone, Boscalid, fluorine pyrrole bacterium acid amides, metalaxyl, Prochloraz, cyanogen frost azoles, procymidone, iprodione, propamocarb, thiophanate-methyl, streptomycin sulphate, jinggangmeisu, dislike mould spirit, dimethomorph, flumorph, phonetic mould amine, Carbatene, mancozeb, zineb, Propineb, tpn, the Fungicidal active compound of fenaminosulf or Kocide SD, also think simultaneously, though thiazole zinc is outstanding to the bacterial diseases of plants control efficiency, the part fungal disease also there is good effect, and the part plant there is the growth that promotes root system and leaf, improve degeneration-resistant, the effect of disease resistance, but recognize that also thiazole zinc can not satisfy Fungicidal active compound fully to plant tolerance and highly active requirement.For this reason, the purpose of this kind composition provides a kind of thiazole zinc that utilizes and is combined tolerance and the highly active problem of solving with a kind of Fungicidal active compound, and wherein, thiazole zinc can or be disliked mould spirit with metalaxyl or Prochloraz and be combined.Because thiazole zinc and Prochloraz or dislike mould spirit and combine and to remove sac fungi or pythium spp and sickle-like bacteria, for pythium spp, epidemic disease is mould and multiple sickle-like bacteria etc. does not reach desirable bactericidal effect, so also there is certain problem in the sterilization of this kind composition; In addition, though the technology that this kind composition also adopts thiazole zinc to combine with metalaxyl, and metalaxyl has good control efficiency to pythium spp, phytophthora, but the agent of metalaxyl list is very low to the bakanae disease activity of paddy rice seedling, when the 400mg/L concentration for the treatment of, bacteriostatic activity is less than 10%, so metalaxyl is not really desirable to the bactericidal action of sac fungi or pythium spp and sickle-like bacteria.
In sum, even if it contains a large amount of relatively sac fungis or pythium spp and sickle-like bacteria in the paddy rice seedling, it is produced dislike mildew or damping off, but other bacterial classification that also contains relatively small amount, as pythium spp, epidemic disease is mould and multiple sickle-like bacteria, if utilize bactericide only to prevent that it from by big the infecting of amount of bacteria, also easily making the paddy rice seedling other disease occur and ignore by poor infecting merely.
Summary of the invention
The objective of the invention is to be to invent a kind of efficient, low toxicity, low-residual, easy to use and can effectively prevent and treat a kind of microbicide compositions of rice seedling bakanae disease, damping off simultaneously.
Known from institute, the rice seedling damping off is topmost disease, and the germ that causes rice seedling blight is pythium spp and sickle-like bacteria etc., after these kinds germ is infected the paddy rice seedling, can cause in a large number upright withered the dying of rice shoot; And bakanae disease of rice also can produce very big harm to paddy rice, and the germ that causes paddy rice seedling bakanae disease is sac fungi, can make the sick seedling of morbidity of rice seedling thinner and taller than strong seedling during morbidity, and the leaf look yellowish, and root system development is bad, and has the sick seedling of part dead before transplanting.Hymexazo belongs to heterocyclic compound, and systemic fungicide is again a kind of soil disinfectant simultaneously, and the damping off that rotten mildew, sickle-like bacteria etc. are caused has preventive effect preferably.Iron, the aluminium ion of this medicine in soil is combined, and suppresses the germination of spore.Hymexazo can be by the root absorption of plant and mobile in root system, produce two kinds of glucosides at the plant intracellular metabolite, crop is had the effect that improves physiologically active, thereby can promote plant strain growth, the activity of the branch evil of root, the increase of root hair and root improves, but invalid substantially to the microbial disease of ascus.Metalaxyl belongs to the anilide bactericide; the systemic fungicide of tool protection and therapeutic action; can be absorbed by the root of plant, stem, leaf; and transfer to each organ of plant with moisture content in the plant corpus; can make cauline leaf handles; seed treatment and soil treatment, effective to downy mildew, phytophthora, the caused disease of pythium spp, but invalid substantially to the microbial disease of ascus.Prochloraz belongs to the imidazoles broad-spectrum germicide, and the various crop disease that causes for sac fungi and imperfect fungus has special efficacy.Cause effect by the biosynthesis that suppresses sterol.Though do not have a systemic action, it has certain conductive performance, but the disease that phytophthora, pythium spp are caused is invalid substantially.And with using with in twos between hymexazo, metalaxyl and Prochloraz preventing and kill off of rice seedling disease all had certain limitation, can not reach the effect that the rice seedling disease is all thoroughly prevented and kill off in a dispenser.In order to satisfy the needs of agricultural production, primary study of the present invention has been developed the microbicide compositions of a kind of Han You hymexazo, metalaxyl and three kinds of active components of Prochloraz.
Technical scheme of the present invention is as follows:
A kind of microbicide compositions that contains A, B, three kinds of active components of C, A component Xuan Zi hymexazo, the B component is selected from metalaxyl, and the C component is selected from Prochloraz, and the weight fraction ratio between three kinds of active components is: 1:1-50:1-50.
Three kinds of active components are product in the microbicide compositions of the present invention, can be from many pieces of disclosed publications " finding the external pesticide species handbook new edition bound volume of writing of " agricultural chemicals commodity hand " 99 years versions of Shenyang publishing house or the Ministry of Chemical Industry's agricultural chemicals central information facility for example.The bactericide that is specifically related to is:
A component: hymexazo, English common name: hymexazol, chemical name: 3-hydroxy-5-methyl base isoxazole.
B component: English common name: the metalaxyl of metalaxyl, chemical name: D, L-N-(2,6-3,5-dimethylphenyl)-N-(2'-methoxyl group acetyl) methyl lactamine.
C component: English common name: the prochloraz of Prochloraz, chemical name: N-propyl group-N-[α-(2,4,6-Trichlorophenoxy)-1H-imidazoles-1-formamide.
Have now found that ， Jiang the use that is mixed of hymexazo, metalaxyl and the bright aforementioned proportion of miaow, has stronger synergistic effect, and each medicament is had complementary advantages, and a drug can be prevented and treated the rice seedling multiple diseases substantially, reduces drug cost, reduce spraying times, saved the labour.Be embodied in the advantage of following three aspects: have stronger synergistic effect after 1, using with, thereby reduce dosage separately, reduced the diseases prevention cost, improved the safety to crop.2, enlarge fungicidal spectrum, improved whole protection effect, reached the purpose of once preventing and treating the rice seedling disease.3, using each component of back with can have complementary advantages, and can prevent and treat seed simultaneously and carry germ in germ, the soil.
In the microbicide compositions of the present invention between three kinds of active components further preferred weight fraction than being 1:1-30:1-30.
Amount of application when the content of active component depends on independent use in the composition, but also depend on the mixed ratio of three kinds of components.Usually the weight percentage of active component is the 1-99% of gross weight in the composition.Preferable is 10% to 80%.The optimum range of active component content is different according to the preparation type of composition.Usually, active component content is 10-80% by weight in the solid pharmaceutical preparation; Active component content is 2-80% by weight in the liquid preparation; Active component content is 2-60% by weight in the suspension preparation.
Composition of the present invention by the user before use through thin up or directly by the pesticide-seeds ratio use of dressing seed.Basigamy system can after being about to active substance and liquid-carrier or solid carrier mixing, add a kind of or a few place surfactant such as emulsifier, dispersant, stabilizing agent, wetting agent, adhesive or defoamer etc. by common processing method preparation.According to the difference of composition processing formulation, can also add film forming agent, antifreezing agent, colouring agent etc. one or more.
The liquid-carrier that is fit to preparation microbicide compositions of the present invention comprises water, aromatic hydrocarbons, aliphatic hydrocarbon etc., particularly suitable be water.Also have oils and the molten fiber of methyl in addition, simultaneously, mixtures of different liquids also is suitable for.
Be fit to preparation bactericide of the present invention solid carrier be any carrier that is generally used for preparing bactericide.For example diatomite, aluminium-magnesium silicate, atlapulgite, kaolin, clay, gypsum, bentonite, White Carbon black, precipitated calcium carbonate, lime stone, styrene polymer and copolymer, corn starch and soluble starch etc.
The emulsifier that is fit to preparation microbicide compositions of the present invention can be anionic or nonionic emulsifier, for example alkylphenol-polyethenoxy base ether, alkylaryl polyoxyethylene polyoxypropylene base ether, alkylphenol-polyethenoxy oxypropylene group ether, benzylphenol polyoxyethylene groups ether, polyoxyethylene fatty acid fat, polyoxyethylene aliphatic alcohol ether, polyoxyethylene fatty amine etc.For example agricultural newborn 500#, agricultural newborn 600#, Nongru-700 #, agricultural newborn OX-635, agricultural newborn OX-662, agricultural newborn OX-690, agricultural newborn OX-2511, agricultural newborn OX-8653C, agricultural newborn MOA-3, agricultural newborn OP-10, farming breast 2201, agricultural newborn CS-7, agricultural newborn 507#, agricultural newborn 0201B, agricultural newborn 0203B, agricultural newborn 0203C etc.
The dispersant that is fit to preparation microbicide compositions of the present invention can be alkylsulfonate, alkyl amide taurate, two (alkyl) naphthalene sulphonate formaldehyde synthesis sulphate, alkylphenol polyoxyethylene formaldehyde condensation products, alkylphenol-polyethenoxy polyethenoxy ether and methylcellulose etc.For example sodium lignin sulfonate, calcium lignosulfonate, alkyl naphthalene sulfonic acid formaldehyde condensation products, methyl naphthalene sulfonate formaldehyde condensate, naphthalene sulfonic acid-formaldehyde condensation product, methanonaphthalene sodium sulfonate, oleic acid methylamino ethylsulfonic acid sodium, alkyl-diethylene glycol ether-sodium sulfonate, N-methyl-oleoyl-sodium taurocholate, epoxidized polyether, to tertbutyl ether, dibutyl naphthalene sulfonic acid-formaldehyde condensation product and calgon etc.
The wetting agent that is fit to preparation microbicide compositions of the present invention can be sldium lauryl sulfate, lauryl sodium sulfate, dodecyl sodium sulfate, sodium alkyl benzene sulfonate, Negel etc.
The adhesive that is fit to preparation bactericidal composition of the present invention can be natural or synthetic, for example xanthans, gelatin, gum Arabic, polyvinylpyrrolidone, aluminium-magnesium silicate, polyvinyl alcohol, phenolic resins, carboxymethyl cellulose, methylcellulose and sodium alginate etc.Defoamer can steep enemy, silicone based, silicone, C
8-10Fatty alcohol, C
10-20Saturated fat acids and acid amides etc.
The film forming agent that is fit to microbicide compositions of the present invention can be monomer or complexs such as polyvinyl alcohol, acrylic acid, Organosiliconcopolymere, butyl acrylate, acrylamide and acrylic acid.
In addition, can also contain warning colouration in of the present invention, for example basic rhodamine, sun-proof bright red, rose-red etc.
Composition of the present invention can be processed into multiple formulation, but for example wetting powder, suspending agent, seed treatment dispersion powder etc.The preparation method of these formulations is as well known to those skilled in the art.For example, preparation is during wetting powder, after various components are mixed, is crushed to below the 44um; During the preparation suspending agent, various components are mixed, in sand mill, be ground to the active ingredient particle diameter and can obtain required product less than 3um.
Composition of the present invention is specially adapted to prevent and treat the disease in seedling stages such as bakanae disease of rice, damping off.Using optimum period and be before the crop seed soaking soaks seed before (seed dressing or dressing) or the sowing handle or, formulation rate and rice varieties change with the local sprout term disease order of severity over the years, cultivars to disease susceptible or the heavy bigger dosage of application of morbidity over the years, otherwise with lower dosage.Usually application dose can restrain at 15-300 in (active ingredient)/hectare scope.
Co-toxicity coefficient for the composition of three kinds of active components of the present invention adopts Sun-Johnson toxicity index computing method, uses following formula and calculates:
The theoretical toxicity index of the actual toxicity index of co-toxicity coefficient CTC=(intermixture/intermixture) * 100
The actual toxicity index of the mixture=(EC of medicament
50The EC of/mixture (A+B+C)
50) * 100
The active ingredient percentage of toxicity index * A medicine in mixture of the theoretical toxicity index of mixture=A medicine
The active ingredient percentage of the toxicity index of+B medicine * B medicine in mixture
The active ingredient percentage of the toxicity index of+C medicine * C medicine in mixture
If co-toxicity coefficient, represents then that composition has synergistic effect more than 120, co-toxicity coefficient represents that then composition is summation action between 80-120, and co-toxicity coefficient represents then that less than 80 composition is antagonism.
Embodiment
The present invention that is elaborated of following instantiation, but the present invention only limits to these examples absolutely not.Percentage all is weight percentage in the proportioning of all preparations.
Formulation examples
Embodiment 1 14% wetting powder
Hymexazo 4%
Metalaxyl 8%
Prochloraz 2%
Sodium lignin sulfonate 10%
Alkyl sulfonic acid first 1%
Heptadecanol 1%
Precipitated calcium carbonate complements to 100%.
Embodiment 2 7% wetting powders
Hymexazo 4%
Metalaxyl 2%
Prochloraz 1%
Sodium lignin sulfonate 10%
Alkyl sulfonic acid first 1%
Heptadecanol 1%
Diatomite complements to 100%.
Embodiment 3 7% suspension seed-coating agents
Hymexazo 2%
Metalaxyl 4%
Prochloraz 1%
Alkylnaphthalene sulfonate 3%
Polyvinyl alcohol 5%
Triphenylethylene phenyl polyoxyethylene ether phosphate amine salt 8%
White carbon 1%
Ethylene glycol 1%
Sun-proof bright red 6%
Water complements to 100%.
Embodiment 4 16% suspension seed-coating agents
Hymexazo 6%
Metalaxyl 6%
Prochloraz 4%
Methanonaphthalene sodium sulfonate 4%
Polyvinyl alcohol 5%
Sodium sulfate of polyethenoxy ether of fatty alcohol 6%
Clay 1%
Ethylene glycol 1%
Sun-proof bright red 6%
Water complements to 100%.
But embodiment 5 20% seed treatment dispersion powders
Hymexazo 8%
Metalaxyl 8%
Prochloraz 4%
NNO 7%
Dodecyl thiosulfonic acid sodium 1%
Polyvinyl acetate 2.5%
Basic rhodamine 0.5%
Diatomite complements to 100%.
But embodiment 6 15% seed treatment dispersion powders
Hymexazo 5%
Metalaxyl 5%
Prochloraz 5%
Sodium lignin sulfonate 10%
Alkyl sulfonic acid potassium 1%
Bentonite 8%
Diatomite complements to 100%.
Embodiment 7 16% seed treatment suspending agents
Hymexazo 5%
Metalaxyl 8%
Prochloraz 3%
Methanonaphthalene sodium sulfonate 4%
Sodium sulfate of polyethenoxy ether of fatty alcohol 6%
White carbon 8%
Ethylene glycol 1%
Sun-proof bright red 8%
Water complements to 100%.
Embodiment 8 6% seed treatment suspending agents
Hymexazo 1%
Metalaxyl 4%
Prochloraz 1%
Negel 8%
Sodium sulfate of polyethenoxy ether of fatty alcohol 6%
Precipitated calcium carbonate 1%
Ethylene glycol 1%
Sun-proof bright red 6%
Water complements to 100%.
The biologically active example
Example 9 greenhouses are given birth to test and are tested example
Test method: will melt good medium and be cooled to 60-70 ℃, add quantitative pharmacy by set concentration, make the toxic medium that contains different doses, treat base fully cooling back inoculation diameter 0.5cm for examination pathogen bacterium sheet, other establishes blank, cultivates in the rotating and culturing case (25 ℃ ± 1 ℃).Rhizoctonia is cultivated in medium after 48 hours and is investigated, bakanae disease is cultivated in incubator after 72 hours and is investigated, measure the confession examination pathogen colony growth diameter of each processing during investigation respectively, and calculating bacteriostasis rate, calculate composite dose co-toxicity coefficient with Sun-Johnson toxicity index computing method, result of the test sees Table 1.Co-toxicity coefficient to rice seedling blight after hymexazo, metalaxyl, Prochloraz are used with as can be seen from the test results all (is seeing Table 1) more than 120, show as synergistic effect, the co-toxicity coefficient of bakanae disease of rice (is seen Table 2) between 80-120, show as summation action.
Table 1 hymexazo, metalaxyl, Prochloraz are to rice seedling blight joint toxicity measuring result
Table 2 hymexazo, metalaxyl, Prochloraz are to rice seedling blight joint toxicity measuring result
Claims (5)
1. microbicide compositions, it is characterized in that: containing has hymexazo, metalaxyl, the ratio of weight and number between three kinds of active components of Prochloraz, three kinds of active components is: 1-50:1-50:1-50.
2. microbicide compositions according to claim 1 is characterized in that: the ratio of weight and number between three kinds of active components is: 1-30:1-30:1-30.
3. according to the described microbicide compositions of claim 2, it is characterized in that: the active component weight percentage is 1-99% in the said composition.
4. composition according to claim 1 is characterized in that: contain at least a carrier and at least a surfactant in the said composition.
5. a microbicide compositions according to claim 1 is for the purposes of preventing and kill off rice seedling bakanae disease and damping off.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115362857A (en) * | 2022-09-22 | 2022-11-22 | 浙江石原金牛化工有限公司 | Method for preventing and treating rice bacterial wilt |
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| CN115362857A (en) * | 2022-09-22 | 2022-11-22 | 浙江石原金牛化工有限公司 | Method for preventing and treating rice bacterial wilt |
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Address after: 117000 28 West Road, Shiqiaozi Town Park, Xihu District, Benxi City, Liaoning Province Patentee after: Liaoning seedling biochemical Polytron Technologies Inc Address before: 117000 28 West Road, Shiqiaozi Town Park, Xihu District, Benxi City, Liaoning Province Patentee before: Benxi Zhuangmiao Agrochemicals Technology & Development Co., Ltd. |
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