CN101669485B - Compound bactericidal composition containing fludioxonil - Google Patents
Compound bactericidal composition containing fludioxonil Download PDFInfo
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Abstract
The invention relates to a compound bactericidal composition containing fludioxonil and use thereof. The effective components of the composition are fludioxonil and hymexazol, the mass ratio of portions of fludioxonil and hymexazol is 20:1 to 1:50. The bactericidal composition has relatively strong synergistic action, widens disease prevention and treatment spectrum, can prevent germ from generating resistance or delay the development speed of resistance, prolongs the use life of the pesticide, and reduces the use cost and pesticide residue. The compound bactericidal composition can prevent and treat fusarium patch, rice seedling rot, pythium aphanidermatum, fusarium wilt, verticillium wilt, sclerotinia sclerotiorum, colletotrichum lagenarium, phytophthora blight, fusarium wilt, cladosporium cucumerinum, sclerotium erwinia carotovora, seedling blight, stem wilt and leaf blight, and is particularly suitable for preventing and treating crop soil diseases resulted from pathogen fungus such as fusarium graminearum schwabe, rhizoctinia, pythium aphanidermatum, seedling rot fusoma, phytophthora capsici and the like.
Description
Technical field
The present invention relates to a kind of agricultural bactericidal composition and uses thereof, be specifically related to a kind of take fludioxonil with hymexazo is bactericidal composition and the application thereof of main active.
Background technology
Crop easily is subject to infecting of various diseases, particularly fungal disease in growth and development process, it is of a great variety, and harm is serious.Silborne fungal diseases is the difficult point of control of plant disease especially, and its infringement that plant growth and output are caused is from saying.For a long time, chemical control is the main effective means of preventing and treating soil-borne disease.As continuous cropping for many years, make that in soil, germ accumulates all the year round due to unscientific tillage method, can not get effective removing, add single drug and other various unscientific application methods, cause multiple soil-borne pathogen to produce serious resistance to the agricultural chemicals of current use.Because germ accumulates the generation resistance in a large number, cause the frequent dispenser of peasant to cause drug cost to increase and increasing environmental pollution.In some vegetables and melon and fruit planting base, the independent use of conventional pesticide has been difficult to play control efficiency.
Therefore, be badly in need of efficient, low toxicity, safety, environmental protection, the bactericide that is conducive to resistance management and composition thereof and solve the problems referred to above.
Fludioxonil (fludioxonil) is the pyroles bactericide, it is the analog of the secondary metabolites pyrrolnitrin (pyrrolnitrin) that produces of (the Pseudomonas pyrrocinia) not of the same race of pseudomonas (Pseudomonas spp.), due to it than the anti-photodissociation of natural products pyrrolnitrin, mould fungus inhibition and be widely used in the fungal disease of control in agricultural production in specific manner.The antibacterial mechanism of fludioxonil is to suppress mycelial growth by suppressing the transhipment relevant with the glucose phosphorylated, finally causes the death of germ.For bacterial disease, good effect is arranged also in addition.
Fludioxonil is used for the rotten Fusariumsp of control snow, wheat net bunt bacterium, rhizoctonia solani etc. as the blade face bactericide, and gray mold is had special efficacy; As seed treatment: be mainly used in cereal and fragrant-flowered garlic cereals crop control and kind pass and soil-borne disease bacterium such as Alternaria, Ascochyta, aspergillus, Fusarium, Helminthosporium, Rhizoctonia and a Penicillium bacterium etc.But the fludioxonil cost is higher, is difficult to spread.
Hymexazo (hymexazol) is heterocycle compound, is a kind of systemic fungicide, soil disinfectant, is also a plant growth regulators simultaneously.Can directly be absorbed by plant root, enter in plant corpus, mobile very rapid.The mobile stem that only just moved in 3 hours in root system moved to the plant whole body in 24 hours.The mechanism of action is unique, and efficient, low toxicity, nuisanceless can suppress the mycelial normal growth of disease fungus or direct killing pathogenic bacteria, again can Promoting plant growth.Soil fungi there is significant fungistatic effect as: sickle-like bacteria, root shell bacterium, rhizoctonia, pythium spp, the rotten bacterium of seedling, photovoltaicing leather bacteria etc., can be applicable to prevent and treat the diseases such as damping off, seedling rot, damping off, fusarium wilt, verticillium wilt, stalk break, anthracnose, epidemic disease, dry rot, scab, sclerotium soft rot, seedling blight, stem wilt, leaf blight, to macerate root, continuous cropping continuous cropping obstacle has better effects.Hymexazo to the preventive effect of bacterial disease relatively a little less than, and because the medicament kind of preventing and treating soil-borne disease is less, in practical operation, using method is improper, the single use preventive effect of ， hymexazo obviously descends at present, the pesticide resistance problem occurs.
Summary of the invention
In order to solve the difficulty that in agricultural production, the crop soil-transmitted disease is difficult to prevent and treat, the present invention aims to provide a kind of efficient, low toxicity, environmental protection and is conducive to the Fungicidal composition of germ resistance management, the synergistic effect that two kinds of active components are mixed and produce be can take full advantage of, soil-borne fungus and bacteriosis in grain, vegetables, fruit, horticultural crop and industrial crop production process can be used for preventing and treating.
In order to address the above problem, the inventor has carried out a large amount of biologicall test screening tests, and unexpected discovery fludioxonil has significant synergies to pathogenic soil bacterium such as sickle-like bacteria Yu hymexazo is composite with certain proportion.
The present composition is characterised in that take fludioxonil with hymexazo is active ingredient, and fludioxonil is Yu the mass ratio of hymexazo is 20: 1～1: 50, and ratio is 10: 1～1: 20 preferably.
-Fungicidal composition of the present invention is prepared into any one formulation that is fit to agricultural use with known method, reasonable formulation is wetting powder, water dispersible granules, suspending agent, aqueous emulsion and microemulsion; In preparation, the total content of active ingredient is 1%-80%, and all the other are to allow in agricultural chemicals to use and the acceptable auxiliary element.
The auxiliary agent that uses in composition of the present invention comprises that solvent, dispersant, emulsifier, stabilizing agent, antifreezing agent, thickener etc. reach other and be of value to the known substance that active ingredient is stablized and drug effect is brought into play in preparation, all various compositions commonly used in pesticidal preparations or that permission is used, be not particularly limited, concrete composition and consumption require to determine by simple experiment according to formula.
Product described in the invention can the finished product preparation form provide, be that in composition, each material mixes, the composition of composition also can provide with the single dose form, directly mix in the ratio of two kinds of active ingredients of the present invention in bucket or tank before using, then be diluted to required concentration.The frequency of administration of the present composition and amount of application change with weather condition and crop state, can reach the purpose of control by using suitable formulation.
Bactericidal composition of the present invention can be used for preventing and treating the various agricultural disease, be mainly used in preventing and treating soil-borne fungus and the bacteriosis of grain, vegetables, fruit, horticultural crop and industrial crop, especially to remarkable by the microbial plant soil-borne fungus and bacterium of cause of disease diseases controls such as sickle-like bacteria, rhizoctonia, pythium spp and botrytis cinereas.
Compared with prior art, beneficial effect of the present invention is: 1. being mixed has obvious synergistic effect, has improved control efficiency; 2. composition is comprised of two kinds of different active ingredients, and mechanism of action is different, has reduced selection pressure, is conducive to overcome and delay the pesticide resistance of germ; 3. enlarged the control spectrum; 4. two kinds of active ingredients are mixed, and have reduced dosage, greatly reduce production and use cost and have alleviated pollution to environment.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, the present invention describes with following specific embodiment, but the present invention is limited to absolutely not these examples.The following stated is only the present invention embodiment preferably, only in order to explain the present invention, can not therefore be interpreted as the restriction to the scope of the claims of the present invention.Should be pointed out that all any modifications of making within the spirit and principles in the present invention, be equal to replacement and improvement etc., within all should being included in protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Different pesticide active ingredients is carried out Combination application, is a kind of effectively and efficiently mode that solves at present agricultural chemicals pesticide resistance problem.Different pesticide active ingredients shows three kinds of type of action after mixing usually, and namely summation action, synergistic effect and antagonism, act on but which kind of is specially, and be unpredictable, only has by lot of experiments and just can know.Compound synergic is well filled a prescription, and owing to obviously having improved actual control efficiency, has reduced the usage amount of agricultural chemicals, has alleviated selection pressure, thereby can delay the drug-fast generation speed of germ, is scientific and reasonable important means of preventing and treating disease.
The inventor is by a large amount of biologicall test screening tests, use the abundant method of Sun Yun to carry out the synergistic effect analysis of different proportionings to fludioxonil and hymexazo composition, find in certain ratio range unexpectedly, fludioxonil has obvious synergistic function Yu hymexazo makes up to disease funguses such as sickle-like bacteria, and is not only the simple addition of two kinds of medicaments.Specifically be illustrated with following biologicall test example.
Biologicall test example 1: the composite Toxicity Determination to capsicum root-rot sickle-like bacteria of fludioxonil and hymexazo
Subjects: the capsicum root-rot sickle-like bacteria (Fusarium solani) of picking up from the field
Test method: use the mycelial growth rate method.With capsicum root-rot sickle-like bacteria PDA medium culture, when bacterium colony just covered with culture dish, the card punch that is 7mm with internal diameter punched from the edge, and the mycelia piece that breaks into is as inoculum.Get respectively the liquid 5mL for preparing and quantitative 75mL sterilising medium (45 ℃) and mix, make 4 pastille flat boards, be mixed into contrast with equivalent sterile water and medium.The mycelia piece is placed in flat board in 28 ℃ of incubators and cultivates after being inverted and being connected to dull and stereotyped central authorities.After 7d, measure colony diameter with the right-angled intersection method, calculate and respectively process mycelia net growth, mycelial growth inhibition rate.
Net growth (mm)=measurement colony diameter-7
Mycelial growth inhibition rate (%)=[(control group net growth-processed group net growth)/control group net growth] * 100
Mycelial growth inhibition rate is converted into probability value (y), and liquor strength (mg/L) converts logarithm value (x) to, calculates concentration EC in virulence equation and inhibition with method of least squares
50, according to toxicity index and the co-toxicity coefficient (CTC) of the abundant method calculating of Sun Yun medicament.Toxicity test the results are shown in Table 1.
The co-toxicity coefficient of built agent (CTC) 〉=120 shows as synergistic effect; CTC≤80 show as antagonism; 80＜CTC＜120 show as summation action.
The results are shown in Table 1.
The composite Toxicity Determination result to capsicum root-rot sickle-like bacteria of table 1 fludioxonil and hymexazo
| Process | EC 50(mg/L) | ATI | TTI | Co-toxicity coefficient CTC |
| Fludioxonil | 2.37 | 100.00 | / | / |
| Hymexazo | 12.82 | 18.49 | / | / |
| Fludioxonil 20 ∶ hymexazos 1 | 1.68 | 141.07 | 96.12 | 146.77 |
| Fludioxonil 10 ∶ hymexazos 1 | 1.39 | 170.50 | 92.59 | 184.15 |
| Fludioxonil 5 ∶ hymexazos 1 | 1.47 | 161.22 | 86.41 | 186.57 |
| Fludioxonil 1 ∶ hymexazo 1 | 2.19 | 108.22 | 59.24 | 182.67 |
| Fludioxonil 1 ∶ hymexazo 10 | 4.24 | 55.90 | 25.90 | 215.84 |
| Fludioxonil 1 ∶ hymexazo 20 | 5.35 | 44.30 | 22.37 | 198.04 |
| Fludioxonil 1 ∶ hymexazo 50 | 6.57 | 36.07 | 20.09 | 179.60 |
Measurement result shows, fludioxonil and hymexazo have obvious synergistic effect to capsicum root-rot sickle-like bacteria between proportioning 20: 1～1: 50, and especially between 10: 1～1: 50, synergistic effect is more obvious, and co-toxicity coefficient is more than 170.
Biologicall test example 2: fludioxonil is Yu the composite Toxicity Determination to the watermelon Fusarium wilt of hymexazo
Subjects: the watermelon Fusarium wilt (Fusarium oxysporum) that picks up from the field
Test method: use the mycelial growth rate method.With watermelon Fusarium wilt PDA medium culture, when bacterium colony just covered with culture dish, the card punch that is 7mm with internal diameter punched from the edge, and the mycelia piece that breaks into is as inoculum.Get respectively the liquid 5mL for preparing and quantitative 75mL sterilising medium (45 ℃) and mix, make 4 pastille flat boards, be mixed into contrast with equivalent sterile water and medium.The mycelia piece is placed in flat board in 28 ℃ of incubators and cultivates after being inverted and being connected to dull and stereotyped central authorities.After 7d, measure colony diameter with the right-angled intersection method, calculate and respectively process mycelia net growth, mycelial growth inhibition rate.
Net growth (mm)=measurement colony diameter-7
Mycelial growth inhibition rate (%)=[(control group net growth-processed group net growth)/control group net growth] * 100
The mycelial growth rate conversion is become probability value (y), and liquor strength (μ g/mL) converts logarithm value (x) to, calculates concentration EC in virulence equation and inhibition with method of least squares
50, according to toxicity index and the co-toxicity coefficient (CTC) of the abundant method calculating of Sun Yun medicament.Toxicity test the results are shown in Table 2.
The co-toxicity coefficient of built agent (CTC) 〉=120 shows as synergistic effect; CTC≤80 show as antagonism; 80＜CTC＜120 show as summation action.
Table 2 fludioxonil is Yu the composite Toxicity Determination result to the watermelon Fusarium wilt of hymexazo
| Process | EC 50(μg/mL) | ATI | TTI | Co-toxicity coefficient CTC |
| Fludioxonil | 0.55 | 100.00 | / | / |
| Hymexazo | 4.31 | 1.16 | / | / |
| Fludioxonil 20 ∶ hymexazos 1 | 0.54 | 101.85 | 95.85 | 106.27 |
| Fludioxonil 10 ∶ hymexazos 1 | 0.33 | 166.67 | 92.07 | 181.02 |
| Fludioxonil 5 ∶ hymexazos 1 | 0.37 | 148.65 | 85.46 | 173.94 |
| Fludioxonil 1 ∶ hymexazo 1 | 0.52 | 105.77 | 56.38 | 187.60 |
| Fludioxonil 1 ∶ hymexazo 10 | 1.29 | 42.64 | 20.69 | 206.05 |
| Fludioxonil 1 ∶ hymexazo 20 | 1.68 | 32.74 | 16.92 | 193.54 |
| Fludioxonil 1 ∶ hymexazo 50 | 2.45 | 22.45 | 14.47 | 155.12 |
Measurement result shows, fludioxonil is Yu hymexazo between proportioning 20: 1～1: 50, has obvious synergistic effect to the watermelon Fusarium wilt, and especially between 10: 1～1: 20, synergistic effect is more obvious, and co-toxicity coefficient is more than 170.
Fungicidal composition of the present invention can be prepared into known method and be fit to upper any one formulation used of agricultural, and reasonable formulation is wetting powder, water dispersible granules, suspending agent, aqueous emulsion and microemulsion.Below describe with specific embodiment.In all formulas, percentage all is weight percentage.The processing technology of the various preparations of the present composition is prior art, can change to some extent according to different situations.
Embodiment 1:10.5% coughs up Jun Jing hymexazo wetting powder
Fludioxonil 10%
Hymexazo 0.5%
Lauryl sodium sulfate 2%
Sodium lignin sulfonate 5%
White Carbon black 10%
Kaolin complements to 100%.
Active component, various auxiliary agent and filler etc. are fully mixed in the ratio of formula, after ultra-fine pulverizer disintegrating, namely get 10.5% and cough up Jun Jing hymexazo wetting powder.
This embodiment is used for the control watermelon blight.With 10.5% cough up Jun Jing hymexazo wetting powder by 5000 extraordinarily water dilution fill with root, after medicine, the control efficiency of 7 days is 91.3%.By 1000 times, with the same method use, after medicine, the preventive effect of 7 days is respectively 82.3% and 75.8% to 2.5% fludioxonil suspending agent by 1000 times and 30% hymexazo aqua.Fludioxonil is Yu the composite rear synergistic effect of hymexazo is obvious, to the preventive effect of watermelon blight significantly better than single dose; Because pharmacy control efficacy improves, the amount ratio of compound drug active ingredient uses obviously separately and reduces, thereby has also alleviated the pollution to environment.
Embodiment 2:22% coughs up Jun Jing hymexazo suspending agent
Fludioxonil 20%
Hymexazo 2%
Methyl naphthalene sulfonate formaldehyde condensate 10%
Xanthans 1%
Bentonite 1%
Glycerine 5%
Water complements to 100%.
The ratio of each components such as active component, dispersant, wetting agent and water in formula mixed, obtain 22% and cough up Jun Jing hymexazo suspending agent after grinding and/or high speed shear.
This embodiment is used for the control pepper ralstonia solanacearum.Cough up Jun Jing hymexazo suspending agent by 10000 extraordinarily water dilution sprayings with 22%, after medicine, the control efficiency of 7 days is 91.2%.By 1000 times, with the same method use, after medicine, the preventive effect of 7 days is respectively 84.4% and 48.5% to 2.5% fludioxonil suspending agent by 1000 times and 30% hymexazo aqua.Fludioxonil is Yu the composite rear synergistic effect of hymexazo is obvious, and significantly better than single dose, and the consumption of active ingredient obviously reduces to the preventive effect of pepper ralstonia solanacearum.
Embodiment 3:25% coughs up Jun Jing hymexazo aqueous emulsion
Fludioxonil 12.5%
Hymexazo 12.5%
1-METHYLPYRROLIDONE 10%
Calcium dodecyl benzene sulfonate 5%
Agriculture breast 600# 5%
Water complements to 100%.
Former medicine, solvent, emulsifier are added together, make to be dissolved into even oil phase; Water-soluble component and water mixing are made water; Under high-speed stirred, oil phase is mixed with water, make 25% and cough up Jun Jing hymexazo aqueous emulsion.
This embodiment is used for control fresh kidney beans root rot.Cough up Jun Jing hymexazo aqueous emulsion by 12000 extraordinarily water dilution sprayings with 25%, after medicine, the control efficiency of 7 days is 91.7%.By 1000 times, with the same method use, after medicine, the preventive effect of 7 days is respectively 85.9% and 86.8% to 2.5% fludioxonil suspending agent by 1000 times and 30% hymexazo aqua.Fludioxonil is Yu the composite rear synergistic effect of hymexazo is obvious, to the preventive effect of fresh kidney beans root rot significantly better than single dose; Because pharmacy control efficacy improves, the amount ratio of compound drug active ingredient uses obviously separately and reduces, thereby has also alleviated the pollution to environment.
Embodiment 4:2% coughs up Jun Jing hymexazo microemulsion
Fludioxonil 0.5%
Hymexazo 1.5%
1-METHYLPYRROLIDONE 10%
Isopropyl alcohol 15%
Agriculture breast 500# 5%
Agriculture breast 1601# 5%
Water complements to 100%.
Former medicine, solvent, emulsifier are added together, make to be dissolved into even oil phase, slowly be added to the water under stirring, then through the rapid phase inversion of agitating heating, be chilled to room temperature and make 2% and cough up Jun Jing hymexazo microemulsion.
This embodiment is used for the control eggplant verticillium wilt.With 2% cough up Jun Jing hymexazo microemulsion by 500 extraordinarily water dilution fill with root, after medicine, the control efficiency of 7 days is 88.6%.By 1000 times, with the same method use, after medicine, the preventive effect of 7 days is respectively 79.4% and 84.5% to 2.5% fludioxonil suspending agent by 1000 times and 30% hymexazo aqua.Fludioxonil is Yu the composite rear synergistic effect of hymexazo is obvious, and significantly better than single dose, and the consumption of active ingredient obviously reduces to the preventive effect of eggplant verticillium wilt.
Embodiment 5:44% coughs up Jun Jing hymexazo wetting powder
Fludioxonil 4%
Hymexazo 40%
Lauryl sodium sulfate 2%
Sodium lignin sulfonate 5%
White Carbon black 10%
Kaolin complements to 100%.
Active component, various auxiliary agent and filler etc. are fully mixed in the ratio of formula, after ultra-fine pulverizer disintegrating, namely get 44% and cough up Jun Jing hymexazo wetting powder.
This embodiment is used for control soybean damping off.Cough up Jun Jing hymexazo wetting powder by 2000 extraordinarily water dilution sprayings with 44%, after medicine, the control efficiency of 10 days is 92.6%.By 1000 times, with the same method use, after medicine, the preventive effect of 10 days is respectively 81.3% and 87.4% to 2.5% fludioxonil suspending agent by 1000 times and 30% hymexazo aqua.Fludioxonil is Yu the composite rear synergistic effect of hymexazo is obvious, and significantly better than single dose, and the consumption of active ingredient obviously reduces to the preventive effect of soybean damping off.
Embodiment 6:42% coughs up Jun Jing hymexazo suspending agent
Fludioxonil 2%
Hymexazo 40%
Methyl naphthalene sulfonate formaldehyde condensate 10%
Xanthans 1%
Bentonite 1%
Glycerine 5%
Water complements to 100%.
The ratio of each components such as active component, dispersant, wetting agent and water in formula mixed, obtain 42% and cough up Jun Jing hymexazo suspending agent after grinding and/or high speed shear.
This embodiment is used for control cucumber damping off.Cough up Jun Jing hymexazo suspending agent by 1500 extraordinarily water dilution sprayings with 42%, after medicine, the control efficiency of 10 days is 89.7%.By 1000 times, with the same method use, after medicine, the preventive effect of 10 days is respectively 71.2% and 84.1% to 2.5% fludioxonil suspending agent by 1000 times and 30% hymexazo aqua.Fludioxonil is Yu the composite rear synergistic effect of hymexazo is obvious, to the preventive effect of cucumber damping off significantly better than single dose; Because pharmacy control efficacy improves, the amount ratio of compound drug active ingredient uses obviously separately and reduces, thereby has also alleviated the pollution to environment.
Embodiment 7:51% coughs up Jun Jing hymexazo water dispersible granules
Fludioxonil 1%
Hymexazo 50%
Negel 5%
Sodium lignin sulfonate 7%
Lauryl sodium sulfate 2%
Ammonium sulfate 5%
Precipitated calcium carbonate complements to 100%.
Active component, dispersant, wetting agent, disintegrant and the filler ratio in formula is mixed, become wetting powder through air-flow crushing, then add a certain amount of water mixing extruding to make material, obtain 51% after the drying screening and cough up Jun Jing hymexazo water-dispersible granules.
This embodiment is used for the control gray mold of cucumber.Cough up Jun Jing hymexazo water-dispersible granules by 2000 extraordinarily water dilution sprayings with 51%, after medicine, the control efficiency of 7 days is 95.8%.By 1000 times, with the same method use, after medicine, the preventive effect of 7 days is respectively 85.9% and 89.6% to 2.5% fludioxonil suspending agent by 1000 times and 30% hymexazo aqua.Fludioxonil is Yu the composite rear synergistic effect of hymexazo is obvious, and significantly better than single dose, and the consumption of active ingredient reduces to the preventive effect of gray mold of cucumber.
Embodiment 8:24% coughs up Jun Jing hymexazo suspending agent
Fludioxonil 20%
Hymexazo 4%
Methyl naphthalene sulfonate formaldehyde condensate 10%
Xanthans 1%
Bentonite 1%
Glycerine 5%
Water complements to 100%.
The ratio of each components such as active component, dispersant, wetting agent and water in formula mixed, obtain 24% and cough up Jun Jing hymexazo suspending agent after grinding and/or high speed shear.
This embodiment is used for preventing and treating root rotof flax.Cough up Jun Jing hymexazo suspending agent by 10000 extraordinarily water dilution sprayings with 24%, after medicine, the control efficiency of 10 days is 76.4%.By 1000 times, with the same method use, after medicine, the preventive effect of 10 days is respectively 71.3% and 74.8% to 2.5% fludioxonil suspending agent by 1000 times and 30% hymexazo aqua.Fludioxonil is Yu the composite rear synergistic effect of hymexazo is obvious, to the preventive effect of root rotof flax significantly better than single dose; Because pharmacy control efficacy improves, the amount ratio of compound drug active ingredient uses obviously separately and reduces, thereby has also alleviated the pollution to environment.
Embodiment 5:80% coughs up Jun Jing hymexazo wetting powder
Fludioxonil 8%
Hymexazo 72%
Lauryl sodium sulfate 2%
Sodium lignin sulfonate 5%
White Carbon black 10%
Kaolin complements to 100%.
Active component, various auxiliary agent and filler etc. are fully mixed in the ratio of formula, after ultra-fine pulverizer disintegrating, namely get 80% and cough up Jun Jing hymexazo wetting powder.
This embodiment is used for control fresh kidney beans root rot.Cough up Jun Jing hymexazo wetting powder by 4000 extraordinarily water dilution sprayings with 80%, after medicine, the control efficiency of 10 days is 82.6%.By 1000 times, with the same method use, after medicine, the preventive effect of 10 days is respectively 77.3% and 84.4% to 2.5% fludioxonil suspending agent by 1000 times and 30% hymexazo aqua.Fludioxonil is Yu the composite rear synergistic effect of hymexazo is obvious, and significantly better than single dose, and the consumption of active ingredient obviously reduces to the preventive effect of fresh kidney beans root rot.
Claims (8)
1. bactericidal composition, it is characterized in that: contain active component fludioxonil and hymexazo, wherein the ratio of quality and the number of copies of fludioxonil and hymexazo is 20: 1～1: 50.
2. bactericidal composition according to claim 1, it is characterized in that: fludioxonil in composition is with the ratio of quality and the number of copies of hymexazo is 10: 1～1: 20.
3. bactericidal composition according to claim 1, it is characterized in that: fludioxonil is with the gross mass percentage composition of hymexazo in bactericidal composition is 1%-80%.
4. bactericidal composition according to claim 1, is characterized in that: also contain the pesticidal preparations auxiliary element in described bactericidal composition, be fit to the upper formulation of using of agricultural in order to bactericidal composition is made.
5. bactericidal composition according to claim 4, it is characterized in that: the formulation of described bactericidal composition is suspending agent, wetting powder, water-dispersible granules, aqueous emulsion or microemulsion.
6. the described bactericidal composition of according to claim 1 to 2 any one, is characterized in that two kinds of active ingredients in composition provide with independent dosage form, during use in described ratio make up a prescription or spraying equipment in mixed-shaped become composition.
7. the application of bactericidal composition according to claim 1 on control of crop disease.
8. the application of bactericidal composition according to claim 7 is characterized in that: described crop is one or more in grain, vegetables, fruit, horticultural crop and industrial crop.
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| CL2009000908A1 (en) * | 2009-04-16 | 2009-08-14 | Univ Santiago Chile | Bacterial strain of the serratia plymuthica ccgg2742 species; biofungicidal composition that comprises it; method to prevent fruit rot; and its use to control fungal infections caused by phytopathogenic fungi. |
| CN102258042A (en) * | 2010-05-27 | 2011-11-30 | 青岛奥迪斯生物科技有限公司 | Germicide composition containing fludioxonil and thiophanate-methyl |
| CN103858894A (en) * | 2014-03-14 | 2014-06-18 | 曹荣成 | Fludioxonil and hymexazol compounded fungicidal composition |
| CN105104386A (en) * | 2015-07-25 | 2015-12-02 | 海利尔药业集团股份有限公司 | Sterilization composition containing hymexazol and fludioxonil |
| CN114831123A (en) * | 2022-06-08 | 2022-08-02 | 安徽丰乐农化有限责任公司 | Pesticide fertilizer composition and application thereof |
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| CN1444449A (en) * | 2000-07-04 | 2003-09-24 | 辛根塔参与股份公司 | Fungicidal compositions based on fludioxonil |
| CN1729773A (en) * | 2005-08-25 | 2006-02-08 | 齐军山 | Agricultural disinfecting composition aimed at mold |
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