CN104663671A - Bactericidal composition containing sedaxane and tebuconazole - Google Patents
Bactericidal composition containing sedaxane and tebuconazole Download PDFInfo
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- CN104663671A CN104663671A CN201510074859.1A CN201510074859A CN104663671A CN 104663671 A CN104663671 A CN 104663671A CN 201510074859 A CN201510074859 A CN 201510074859A CN 104663671 A CN104663671 A CN 104663671A
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- China
- Prior art keywords
- tebuconazole
- bacterium amine
- azoles ring
- ring bacterium
- fluorine
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Abstract
The invention discloses a bactericidal composition containing sedaxane and tebuconazole. The bactericidal composition contains an effective component prepared from sedaxane and tebuconazole and is prepared into a common agricultural bactericide dose form by adding a proper amount of an agricultural bactericide aid. The bactericidal composition has relatively high prevention and control effects on fungal diseases of crops, and an obvious synergistic effect is achieved between two medicaments; the dosage can be reduced, the ecological damage and the environmental pollution can be effectively reduced, and the yield and the quality of the crops can be improved; sedaxane and tebuconazole have low toxicities and are safe to human and livestock, beneficial organisms and environments; the drug resistance of germs to the single medicament can be delayed.
Description
Technical field
The invention belongs to technical field of pesticide, relate to a kind of microbicide compositions.In particular, the bactericidal composition of a kind of fluorine-containing azoles ring bacterium amine and Tebuconazole is related to.
Background technology
Rhizoctonia solani Kuhn (
rhizoctonia solani) be one of the whole world most important disease fungus causing staple crops disease, Rhizoctonia solani Kuhn passes through soil-borne, 27 plants above section level can be infected, comprising many important cereal crops as paddy rice, wheat, soybean, corn etc., and the plant such as various vegetables and flowers, especially serious in the harm in seedling stage of crop, cause the disconnected ridge that is short of seedling, affect crop yield.In the incubation of Rhizoctonia solani Kuhn, same nutrient hypha under different conditions, shows very large modal difference and differentiation, and the huge complexity that its nutrient hypha shows in vegetative propagation process is described.At present, the disease that causes of Rhizoctonia solani is main still based on chemical control.But the use of long-term single medicament and irrational insecticide-applying way, make pathogen be easy to develop immunity to drugs, cause drug effect decline, disease outburst, and then strengthen medication, form vicious circle, strengthen drug cost, aggravation environmental pollution, this is also a great problem of chemical control.Have different chemical structures, the different mechanism of action agricultural chemicals rationally composite be overcome pesticide resistance the effective measures with development occur, performance can be improved, reduce the dosage of unit are, improve control efficiency.
Fluorine azoles ring bacterium amine (Sedaxane) belongs to pyrazole amide series bactericidal agent, and its chemical name is N-[2-(1,1 '-Lian cyclopropane)-2-base phenyl]-3-(difluoromethyl)-1-methyl isophthalic acid H-pyrazole-4-carboxamide.Former medicine outward appearance: white powdery solids; Fusing point: 121.4 DEG C; Boiling point: decompose before boiling point; Decomposition temperature: 270 DEG C; Vapour pressure: 1.4 × 10
-6pa (25 DEG C); Solvability (20 DEG C): the solvability in water is 0.67 g/L; Being 410 g/L in acetone, is 500 g/L in carrene, is 200 g/L in ethyl acetate, and be in 0.41 g/L methyl alcohol be 110 g/L in n-hexane, be 70 g/L in toluene, octanol is 20 g/L.Stability: stable in acidity, alkaline medium, stablizes light.Low toxicity, rat acute per os LD
50> 5000 mg/kg, acute through skin LD
50> 2 000 mg/kg.
Structural formula is as follows:
Fluorine azoles ring bacterium amine is the class novel pyrazole acid amide fungicides that development in recent years is got up, and has the effects such as protection, treatment, interior suction, transporting.This bactericide is succinate dehydrogenase (SDH) inhibitor, the tricarbonic acid cycle of Antifungi, blocks energy metabolism.Seed after treatment can absorb fluorine azoles ring bacterium amine in germination process, and is transmitted to other positions of plant corpus by xylem, thus plays the effect of cover crop.Can to prevent and treat kind pass, basidiomycetes that soil passes and sac fungi disease, the diseases such as the potato black scurf caused having rhizoctonia and ustilagin etc., wheat sharp eyespot, rice sheath blight disease, sclerotinia rot of colza, loose smut of wheat, the bunt of wheat, corn southern leaf blight have good prevention and control, result for the treatment of.
Tebuconazole (Tebuconazole) belongs to triazole bactericidal agent, and its chemical name is (RS)-1-(4-chlorphenyl)-4,4-dimethyl-3-(1H-1,2,4 triazol-1-yl methyl) penta-3-alcohol.Former medicine sterling is clear crystal, and fusing point is 102.4 DEG C, vapour pressure 0.0133mPa(20 DEG C): solvability (20 DEG C): water 32mg/L, toluene 50-100g/L.Low toxicity, rat acute per os LD
50> 4000 mg/kg, rat acute is through skin LD
50> 5000 mg/kg.
Structural formula is as follows:
tebuconazole is high-efficiency broad spectrum systemic fungicide, has protection, treats, roots out three zones, and fungicidal spectrum is wide, the lasting period is long.Mainly inhibitory action is played to the biosynthesis of the ergosterol of pathogen, make pathogen to form cell membrane, thus kill pathogen.Multiple rust, powdery mildew, net blotch, root rot, wheat scab, gray mold, sigatoka etc. can be prevented and treated.
Summary of the invention
The invention provides the bactericidal composition of a kind of fluorine-containing azoles ring bacterium amine and Tebuconazole, there is bactericidal activity high, expand fungicidal spectrum, delay the drug-fast emergence and development of pathogen, and dosage total in unit are is declined, economic, efficient, environmental protection.
Two classes are possessed the bactericide of different types of structure and variant mechanism of action by the present invention, namely pyrazole amide series bactericidal agent fluorine azoles ring bacterium amine and triazole bactericidal agent Tebuconazole combined, and be processed into the upper easy-to-use preparation of production, biologically active is high, and dosage total in unit are declines, and reduces dispenser cost, delay pathogen pesticide resistance emergence and development, extend the service life of each component in bactericidal composition, expand fungicidal spectrum, thus realize goal of the invention that is economic, efficient, environmental protection.
For realizing object of the present invention, its technical solution adopted is:
A bactericidal composition for fluorine-containing azoles ring bacterium amine and Tebuconazole, is characterized in that: described composition contains fluorine azoles ring bacterium amine and Tebuconazole two kinds of active ingredients, and the mass ratio of described fluorine azoles ring bacterium amine and Tebuconazole is 1:40 ~ 40:1.
Described fluorine-containing azoles ring bacterium amine and the bactericidal composition of Tebuconazole, is characterized in that: the mass ratio of described fluorine azoles ring bacterium amine and Tebuconazole is 1:20 ~ 20:1.
Described fluorine-containing azoles ring bacterium amine and the bactericidal composition of Tebuconazole, is characterized in that: described composition adds appropriate agricultural bactericidal agent aid, make any one formulation that agricultural chemicals allows.
Described fluorine-containing azoles ring bacterium amine and the bactericidal composition of Tebuconazole, is characterized in that: making formulation is suspension seed-coating agent, aqueous suspension agent, wetting powder, microcapsule formulations or water-dispersible granules.
Described fluorine-containing azoles ring bacterium amine and the bactericidal composition of Tebuconazole, is characterized in that: the active ingredient of described fluorine azoles ring bacterium amine and Tebuconazole composition accounts for 10% ~ 90% of bactericidal composition gross mass.
Described fluorine-containing azoles ring bacterium amine and the bactericidal composition of Tebuconazole, is characterized in that: the active ingredient of described fluorine azoles ring bacterium amine and Tebuconazole composition accounts for 20% ~ 60% of bactericidal composition gross mass.
Described fluorine-containing azoles ring bacterium amine and the application of the bactericidal composition of Tebuconazole in control crop fungal disease.
Beneficial effect of the present invention: (1), compared with single dose, this microbicide compositions has higher control efficiency to crop fungal disease, there is notable synergistic effect between two components; (2) can dosage be reduced, effectively reduce environmental pollution and residue of pesticide, reduce use cost, and crop yield and quality can be improved; (3) in the present invention, fluorine azoles ring bacterium amine and Tebuconazole all belong to the toxicity such as low, and to people and animals, beneficial organism, Environmental security; (4) in the present invention, fluorine azoles ring bacterium amine and Tebuconazole possess the bactericide of different types of structure and variant mechanism of action, delay pathogen pesticide resistance emergence and development, extend the service life of each component in bactericidal composition.
Careful analysis is done to the sterilization idiocratic of fluorine azoles ring bacterium amine and Tebuconazole.
First the EC of fluorine azoles ring bacterium amine and Tebuconazole two single compound (hereinafter referred to as medicament) is measured
50(drug safety index), according to the EC of two single medicaments
50the portfolio ratio of two medicaments is set by Wadley method, and according to Wadley coefficient of synergism SR value.
Test objective thing is soybean miliary damping-off germ and rhizoctonia cerealis, but is not limited thereto.Get fluorine azoles ring bacterium amine and Tebuconazole, be configured to variable concentrations liquid dull and stereotyped, every ware is about 15ml.After pathogen is cultivated 3 days on PDA medium, cut mycelia block with 5mm diameter card punch at colony edge, be transferred to respectively on the culture medium flat plate containing variable concentrations liquid and cultivate.Test adopts mycelial growth determination method, adopts right-angled intersection method to measure colony diameter, measures colony diameter (mm), by following formulae discovery growth inhibition ratio:
Mycelial growth inhibition rate %=(1-chemicals treatment colony diameter-5/ contrast colony diameter-5) × 100%
Mycelial growth inhibition rate is converted into and suppresses probit value (Y), drug concentration is converted into log concentration (X), by log concentration be abscissa, probit value is that ordinate makes toxicity regression straight line, try to achieve fluorine azoles ring bacterium amine and Tebuconazole single dose and mixture thereof to the virulence regression equation of germ, and calculate EC
50value and correlation coefficient r value.
According to the interaction of Wadley method evaluation mixture, computing formula is as follows:
EC
50(theoretical value)=(a+b)/(a/EC
50a+ b/EC
50b),
SR=EC
50(theoretical value)/EC
50(real value).
Wherein a, b are each component content ratio in mixture, analyze the effect of mixture with SR value.SR≤0.5, then two kinds of medicament mixtures have antagonism; SR=0.5 ~ 1.5, then two kinds of medicament mixtures have addition; SR >=1.5, then two kinds of medicament mixtures have synergistic effect.
Table 1 fluorine azoles ring bacterium amine and Tebuconazole single dose and mixture thereof are to soybean Rhizoctonia solani Kuhn toxicity test result
As can be seen from the above table, the fluorine azoles ring bacterium amine of different proportion and the fungistatic effect of Tebuconazole composition to soybean Rhizoctonia solani Kuhn different, experimental result shows that it all has addition than being listed in 15:1 to 1:15, and it has synergistic effect than when being listed in 5:1,1:10 and 1:15.
Table 2 fluorine azoles ring bacterium amine and Tebuconazole single dose and mixture thereof are to rhizoctonia cerealis toxicity test result
As can be seen from the above table, the fluorine azoles ring bacterium amine of different proportion and the fungistatic effect of Tebuconazole composition to rhizoctonia cerealis different, experimental result shows that it all has addition than being listed in 15:1 to 1:15, and it has synergistic effect than being listed in 10:1,1:1 and 1:5.
The present invention has higher control efficiency to crop fungal disease, there is notable synergistic effect between two components; Can dosage be reduced, expand fungicidal spectrum, effectively reduce ecological disruption and environmental pollution, and crop yield and quality can be improved; In the present invention, fluorine azoles ring bacterium amine and Tebuconazole all belong to the toxicity such as low, and to people and animals, beneficial organism, Environmental security; The pesticide resistance of germ to single medicament can be delayed.
Embodiment
Below in conjunction with embodiment, the invention will be further described, but content of the present invention is not limited to following embodiment.
embodiment 1
The preparation method of 33% fluorine azoles ring bacterium amine tebuconazole suspension concentrates seed coat agent: by mass percentage.
Active component, fluorine azoles ring bacterium amine 30%;
Active component, Tebuconazole 3%;
Fulvic acid 2%;
Ricinate, aliphatic acid polyethenoxy ether phosphate 3%;
Film forming agent, polyvinyl acetate 3%;
Pigment, acid scarlet 0.01%;
Thickener, xanthans 0.2%
Preservative, Kathon CG 0.3%
Antifreezing agent, ethylene glycol 5%
Water surplus.
Preparation method: according to formula, above component is weighed in proportion, add ball mill ball milling 60 minutes, filter, suction dispersion tank high speed shear was fully ground through sand mill after 3 minutes, control solid constituent particle diameter within 2 microns, stir after grinding terminates, obtain suspension seed-coating agent agent product.Carry out dressing seed according to every 100kg seed 200ml suspension seed-coating agent, for preventing and treating soybean miliary damping-off and wheat sharp eyespot, preventive effect reaches 89.6% and 90.2% respectively.
embodiment 2
The preparation method of 24% fluorine azoles ring bacterium amine tebuconazole suspension concentrates seed coat agent: by mass percentage.
Active component, fluorine azoles ring bacterium amine 20%;
Active component, Tebuconazole 4%;
Fulvic acid 2%;
Ricinate, aliphatic acid polyethenoxy ether phosphate 3%;
Film forming agent, polyvinyl acetate 3%;
Pigment, acid scarlet 0.01%;
Thickener, xanthans 0.2%
Preservative, Kathon CG 0.3%
Antifreezing agent, ethylene glycol 5%
Water surplus.
Preparation method, with embodiment 1.100kg seed 200ml suspension seed-coating agent carries out dressing seed, and for preventing and treating soybean miliary damping-off and wheat sharp eyespot, preventive effect reaches 91.2% and 88.3% respectively.
embodiment 3
The preparation method of 40% fluorine azoles ring bacterium amine tebuconazole suspension concentrates seed coat agent: by mass percentage.
Active component, fluorine azoles ring bacterium amine 20%;
Active component, Tebuconazole 20%;
Fulvic acid 2%;
Ricinate, aliphatic acid polyethenoxy ether phosphate 3%;
Film forming agent, polyvinyl acetate 3%;
Pigment, acid scarlet 0.01%;
Thickener, xanthans 0.2%
Preservative, Kathon CG 0.3%
Antifreezing agent, ethylene glycol 5%
Water surplus.
Preparation method, with embodiment 1.100kg wheat 150ml suspension seed-coating agent carries out dressing seed, and for preventing and treating soybean miliary damping-off and wheat sharp eyespot, preventive effect reaches 87.8% and 89.4% respectively.
embodiment 4
The preparation method of 44% fluorine azoles ring bacterium amine tebuconazole suspension concentrates: by mass percentage.
Active component, fluorine azoles ring bacterium amine 40%;
Active component, Tebuconazole 4%;
Calcium lignosulfonate 6%;
Alkylphenol-polyethenoxy base phosphate 4%;
Xanthans 0.1%;
Silicone defoaming agent 0.3%;
Water surplus.
Preparation method: according to formula, weighs in proportion by above component, adds ball mill ball milling 30 minutes, filter, suction dispersion tank high speed shear was fully ground through sand mill after 3 minutes, controlled solid constituent particle diameter within 2 microns, stir after grinding terminates, obtain suspending agent product.Every mu of consumption 30g prevents and treats soybean miliary damping-off and wheat sharp eyespot, and preventive effect reaches 88.7% and 90.4% respectively.
embodiment 5
The preparation method of 33% fluorine azoles ring bacterium amine tebuconazole suspension concentrates: by mass percentage.
Active component fluorine azoles ring bacterium amine 3%;
Active component Tebuconazole 30%;
Calcium lignosulfonate 6%;
Castor oil polyoxyethylene ether 4%;
Polyvinyl alcohol 0.1%;
Phosphate defoamer 0.3%;
Water surplus.
Preparation method, with embodiment 4.Every mu of consumption 40g prevents and treats soybean miliary damping-off and wheat sharp eyespot, and preventive effect reaches 84.9% and 85.1% respectively.
embodiment 6
The preparation method of 42% fluorine azoles ring bacterium amine Tebuconazole wetting powder: by mass percentage.
Active component fluorine azoles ring bacterium amine 35%;
Active component Tebuconazole 7%;
Sodium dodecyl benzenylsulfonate 2%;
Sodium lignin sulfonate 4%;
White carbon 7%;
Kaolin surplus/2;
Attapulgite surplus/2.
Preparation method: above component is added mixer by formula rate and mixes laggard row air-flow crushing, add a small amount of purified water after having pulverized and stir, after oven dry wetting powder product.Every mu of consumption 35g prevents and treats soybean miliary damping-off and wheat sharp eyespot, and preventive effect reaches 89.3% and 87.9% respectively.
embodiment 7
The preparation method of 40% fluorine azoles ring bacterium amine Tebuconazole wetting powder: by mass percentage.
Active component fluorine azoles ring bacterium amine 20%;
Active component Tebuconazole 20%;
Sodium dodecyl benzenylsulfonate 3%;
Sodium lignin sulfonate 4%;
White carbon 10%;
Kaolin surplus;
Preparation method: with embodiment 6.Every mu of consumption 40g prevents and treats soybean miliary damping-off and wheat sharp eyespot, and preventive effect reaches 90.5% and 92.2% respectively.
embodiment 8
The preparation method of 55% fluorine azoles ring bacterium amine tebuconazole water dispersible granule: by mass percentage.
Active component fluorine azoles ring bacterium amine 5%;
Active component Tebuconazole 50%;
Sodium lignin sulfonate 6%;
Polyvinyl alcohol 4%;
Ammonium sulfate 8%;
White carbon 10%;
Kaolin surplus;
Preparation method: above component is added mixer by formula rate and mixes laggard row air-flow crushing, add a small amount of purified water after having pulverized and stir, extruder grain, after oven dry water dispersible granules product.Every mu of consumption 40g prevents and treats soybean miliary damping-off and wheat sharp eyespot, and preventive effect reaches 92.6% and 90.6% respectively.
What more than enumerate is only several specific embodiments of the present invention.Obviously, the invention is not restricted to above embodiment, a lot of distortion can also be had.Those of ordinary skill in the art from interior all distortion with directly deriving or associating disclosed by the invention, all can think protection scope of the present invention.
Claims (7)
1. a bactericidal composition for fluorine-containing azoles ring bacterium amine and Tebuconazole, is characterized in that: described composition contains fluorine azoles ring bacterium amine and Tebuconazole two kinds of active ingredients, and the mass ratio of described fluorine azoles ring bacterium amine and Tebuconazole is 1:40 ~ 40:1.
2. the bactericidal composition of fluorine-containing azoles ring bacterium amine according to claim 1 and Tebuconazole, is characterized in that: the mass ratio of described fluorine azoles ring bacterium amine and Tebuconazole is 1:20 ~ 20:1.
3. the bactericidal composition of fluorine-containing azoles ring bacterium amine according to claim 1 and Tebuconazole, is characterized in that: be added with appropriate agricultural bactericidal agent aid, makes conventional disinfectant use in agriculture formulation.
4. the bactericidal composition of fluorine-containing azoles ring bacterium amine according to claim 3 and Tebuconazole, is characterized in that: making formulation is suspension seed-coating agent, aqueous suspension agent, wetting powder, microcapsule formulations or water-dispersible granules.
5. the fluorine-containing azoles ring bacterium amine according to claim 1-4 and the bactericidal composition of Tebuconazole, is characterized in that: the active ingredient of described fluorine azoles ring bacterium amine and Tebuconazole composition accounts for 10% ~ 90% of bactericidal composition gross mass.
6. the bactericidal composition of fluorine-containing azoles ring bacterium amine according to claim 5 and Tebuconazole, is characterized in that: the active ingredient of described fluorine azoles ring bacterium amine and Tebuconazole composition accounts for 20% ~ 60% of bactericidal composition gross mass.
7. the fluorine-containing azoles ring bacterium amine described in any one of claim 1-6 and the application of the bactericidal composition of Tebuconazole in control crop fungal disease.
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|---|---|---|---|
| CN201510074859.1A CN104663671A (en) | 2015-02-13 | 2015-02-13 | Bactericidal composition containing sedaxane and tebuconazole |
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|---|---|---|---|
| CN201510074859.1A CN104663671A (en) | 2015-02-13 | 2015-02-13 | Bactericidal composition containing sedaxane and tebuconazole |
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|---|---|---|---|
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101001527A (en) * | 2004-08-12 | 2007-07-18 | 辛根塔参与股份公司 | Fungicidal compositions |
| WO2012004293A2 (en) * | 2010-07-08 | 2012-01-12 | Bayer Cropscience Ag | Insecticide and fungicide active ingredient combinations |
| CN104719304A (en) * | 2013-12-20 | 2015-06-24 | 陕西美邦农药有限公司 | Sedaxane-containing bactericidal composition |
-
2015
- 2015-02-13 CN CN201510074859.1A patent/CN104663671A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101001527A (en) * | 2004-08-12 | 2007-07-18 | 辛根塔参与股份公司 | Fungicidal compositions |
| WO2012004293A2 (en) * | 2010-07-08 | 2012-01-12 | Bayer Cropscience Ag | Insecticide and fungicide active ingredient combinations |
| CN104719304A (en) * | 2013-12-20 | 2015-06-24 | 陕西美邦农药有限公司 | Sedaxane-containing bactericidal composition |
Non-Patent Citations (1)
| Title |
|---|
| ANON: "Method for protecting useful plants or plant", 《RESEARCH DISCLOSURE 》 * |
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Application publication date: 20150603 |