CN103563921B - A kind of bactericidal composition and application thereof containing thifluzamide and Flutriafol - Google Patents
A kind of bactericidal composition and application thereof containing thifluzamide and Flutriafol Download PDFInfo
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- CN103563921B CN103563921B CN201210276892.9A CN201210276892A CN103563921B CN 103563921 B CN103563921 B CN 103563921B CN 201210276892 A CN201210276892 A CN 201210276892A CN 103563921 B CN103563921 B CN 103563921B
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Abstract
The invention belongs to pesticide field, disclose a kind of bactericidal composition and the application thereof that contain thifluzamide and Flutriafol.This bactericidal composition is with thifluzamide and Flutriafol for principle active component, and wherein the weight ratio of thifluzamide and Flutriafol is 1 ~ 70:1 ~ 50.This bactericidal composition can be applicable to control Cereal, fruit tree, vegetable crop disease, there is higher synergistic function, overcome and delayed the pesticide resistance of germ, sterilization speed is fast, the lasting period is long, reduce application cost, and control efficiency is obviously better than its single dose and uses.
Description
Technical field:
The invention belongs to pesticide field, relate to a kind of bactericidal composition and uses thereof, be specifically related to a kind of bactericidal composition and the application thereof that contain thifluzamide and Flutriafol.
Background technology
Thifluzamide (Thifluzamide), chemical name: the bromo-2-methyl of 2', 6'-bis--4'-trifluoromethoxy-4-Trifluoromethyl-1,3-thiadiazoles-5-hydroxyl anilide, structural formula is as follows:
Thifluzamide is micro-poisoning microbial inoculum of Dow AgroSciences's exploitation at present, rat acute per os LD
50>5000mg/kg, rat acute is through skin LD
50>5000mg/kg, rat acute sucks LC
50>50001.4mg/L.This medicine belongs to thiazole amide bactericide, the mechanism of action is succinate dehydrogenase inhibitor, namely in fungi tricarbonic acid cycle, suppress the synthesis of succinate dehydrogenase, there is very strong Uptake and translocation simultaneously, may be used for paddy rice, other cereal crops, lawn, peanut, potato etc., effective to the pathomycete such as Rhizoctonia, Puccinia, raw meat black point of Pseudomonas, corticium, Ustilago, especially to the disease that basidiomycetes Rhizoctonia causes, there is special efficacy.The disease that concrete controlling object causes as rice sheath blight disease, cotton seedling blight, peanut branch maize ear rot, rust, potato haulm canker and Tilletia caries and Ustilago.Because this medicine is fluorine-containing, therefore its competitiveness is very strong in biochemical pathway again, just not easily recover, and this medicine still has powerful protection effect in seed treatment once with Binding Capacity, to crop safety under recommended dose, it is a very outstanding bactericide kind.But this medicine cost is higher, when being used alone, resistance produces speed.
Flutriafol (Flutriafol), the triazole bactericidal agent of Syngenta Co., Ltd's exploitation.Chemical name: (RS)-2,4'-bis-chloro-a-(1H-1,2,4-triazole-1-methyl) benzohydrol, structural formula is as follows:
Flutriafol is a kind of triazole bactericidal agent; belong to sterol demethylation inhibitors; effectively can suppress the biosynthesis of ergosterol; fungal cell wall can be caused to break; to basidiomycetes and the microbial many diseases of ascus, there is good protection and therapeutic action; and have certain fumigation action concurrently, but to oomycetes and bacterium non-activity.Former medicine is clear crystal, stable in acid, alkali, heat and moist environment, and have the bactericidal activity of wide spectrum, interior absorption is strong, to top conduction in plant corpus, has protection and therapeutic action to disease.Cereal crop (mainly comprising wheat, barley, rye, corn etc.) cauline leaf, fringe portion disease and soil-borne disease and seed-borne disease can be prevented and treated, as powdery mildew, rust, moire disease, leaf spot, net blotch, smut etc.Meanwhile, also soil and seed-borne disease can be prevented and treated.Have special efficacy to cereal powdery mildew, especially have eradicant action to the sorus of powdery mildew of wheat and barley, after medication 5 ~ 10 days, the scab originally formed can disappear.Under recommended dose, to crop safety, without key phenomenon, but single use, and resistance problem must draw attention.
In recent years, rice sheath blight disease, rice blast, false smut, wheat sharp eyespot, moire disease, leaf spot, net blotch, smut, bunt, powdery mildew, the morbidity of rust, downy mildew is serious, often cause catastrophic loss, although thifluzamide, Flutriafol all have ideal control efficiency, but in actual applications, the difficulty of prevention and cure of phytopathogen is increasing: on the one hand, and along with the change of pattern of farming, the economic crops such as melon and fruit, vegetables cultivated area progressively expands, disease occurrence degree, generation quantity all increase, and in control, difficulty strengthens; On the other hand, the resistance of pathogen rises year by year under the medicament selection pressure continued, and the control efficiency of single dose is had a greatly reduced quality, and control of plant disease is faced with significant challenge.
Summary of the invention:
The object of the invention is the plant bactericidal composition containing thifluzamide and Flutriafol providing a kind of applied widely, cost low, effective for above-mentioned technical problem.
Another object of the present invention is to provide this bactericidal composition and causes application on fungal disease at control plant epiphyte.
The object of the invention is to realize by following technical solution:
A kind of bactericidal composition, it is with thifluzamide and Flutriafol for principle active component, and wherein thifluzamide and Flutriafol weight ratio are 1 ~ 70:1 ~ 50, and wherein in bactericidal composition, effective ingredient is present in composition with enhancing effective amount.
Described bactericidal composition, wherein thifluzamide and Flutriafol weight ratio are preferably 5 ~ 50:10 ~ 50, more preferably 5 ~ 40:10 ~ 30, particularly preferably 1:0.1 ~ 20.
In the compositions of the present invention, both thifluzamide and Flutriafol gross weight percentage composition is in the composition 2 ~ 80%, is preferably 5 ~ 50%, most preferably 8 ~ 40%.
Described bactericidal composition, wherein thifluzamide and Flutriafol and known auxiliary agent and excipient are re-dubbed any one formulation that agricultural chemicals allows.These known auxiliary agents, excipients have dispersant, diffusant, defoamer, wetting agent, disintegrant etc., and calcium dodecyl benzene sulfonate, alkylphenol polyoxyethylene, the rare block compound of polyoxyethylene polyoxy third can be adopted (as agriculture breast 33
#), castor oil polyoxyethylene ether, polyoxyethylene nonylphenol ether, TWEEN Series, fatty alcohol-polyoxyethylene ether, polyethylene glycol series etc. in one or more combinations, excipient comprises cyclohexanone, dimethylbenzene, solvent naphtha, water, antifreezing agent (as propane diols), deionized water etc.Above auxiliary agent, excipient and other auxiliary material can be alone or and use.
Described bactericidal composition, its formulation is missible oil, wetting powder, suspending agent, aqueous emulsion, microemulsion or water dispersion granule.
The application of described bactericidal composition in the medicine of preparation control Cereal, fruit tree, vegetable crop fungal disease.
Preferably described bactericidal composition is preparing the water prevention rice sheath blight, rice blast, false smut, wheat sharp eyespot, moire disease, leaf spot, net blotch, smut, bunt, powdery mildew, the application in the medicine of rust, downy mildew.
Beneficial effect of the present invention:
1, the thifluzamide that the present invention is used is thiazole amide bactericide, and Flutriafol is triazole bactericidal agent, and both mechanisms of action are different, and mutual mixture can not produce low touching, can Synergistic, reduces dosage, reduces costs.
2, the present composition scope of application increases, be applicable to the crop pest of preventing and treating Cereal, fruit tree, vegetables, particularly prevent and treat the gramineous crop such as paddy rice, wheat disease, as rice sheath blight disease, rice blast, false smut, wheat sharp eyespot, moire disease, leaf spot, net blotch, smut, bunt, powdery mildew, rust, downy mildew.
Bactericidal composition of the present invention has good control efficiency to sac fungi, basidiomycetes, imperfect fungus and Oomycete fungal disease; And suppress insect or fungi to the drug-fast generation of unitary agent (thifluzamide and Flutriafol arbitrary).
Embodiment
Below in conjunction with embodiment, the invention will be further described, and in embodiment, the preparation method of formulation is conventional method, and " % " of the present invention is mass percent.
Indoor biometrics is tested:
In indoor employing mycelial growth rate method, measure different agents to the EC of bacterial strain
50value, adopt co-toxicity coefficient computational methods, calculate the co-toxicity coefficient (CTC) of mixture, determine the building performance of mixture, circular is as follows:
With single dose a certain in mixture for standard agent (selects EC usually
50junior), calculate:
Single dose toxicity index=standard agent EC
50/ certain single dose EC
50× 100
Toxicity index × B single dose proportion in mixture of toxicity index × A single dose proportion+B single dose in mixture of theoretical toxicity index=A single dose
The EC of actual measurement toxicity index=standard single dose
50the EC of value/mixture
50value × 100
Co-toxicity coefficient=actual measurement toxicity index/theoretical toxicity index × 100
When the classification of co-toxicity coefficient: CTC is greater than 120, mixture has synergetic, and be antagonism when CTC is less than 80, CTC is summation action between 80-120.
Table 1: thifluzamide+Flutriafol different ratio is to the indoor biometrics result of wheat rust bacterium (Pucciniareconditavar.triticiErikss.etHenn)
| Medicament | Virulence regression equation | EC 50（mg/L） | Co-toxicity coefficient |
| 240g/L thifluzamide SC | Y=2.221X+2.9638 | 8.2564 | - |
| 15% Flutriafol WP | Y=1.8669X+2.0453 | 38.2545 | - |
| Embodiment 1 | Y=1.4866X+3.3315 | 13.2541 | 178 |
| Embodiment 2 | Y=2.4643X+2.5084 | 10.2588 | 201 |
| Embodiment 3 | Y=2.1054X+2.5163 | 15.1241 | 176 |
Field control effectiveness test:
Wheat rust test is prevented and treated with the pesticidal preparations that above-described embodiment is obtained.
1, test process: this test medicine consumption establishes three concentration for the treatment of respectively according to the difference of each composition, contrast medicament is agricultural chemicals 15% Flutriafol WP and 240g/L thifluzamide SC and blank clean water experiment respectively.
2, each plot area of test method is 66.7m
2, repeat 3 times; Inspection drug effect method before dispenser after Investigation and Prevention is: random sampling 5 point in test treatment region, checks wheat rust occurrence degree.
3, result of the test is in table 2:
Table 2
Note: a represents remarkable in the level of α=0.05, and b represents variant in the level of α=0.05, and c represents not remarkable in the level of α=0.05.
Shown by indoor biometrics and field efficacy result, thifluzamide and Flutriafol composition have obvious synergistic function, and the control efficiency of composition is excellent, and control efficiency is all better than single dose kind, in agricultural application, have using value.
Embodiment 1:
By thifluzamide 5g, Flutriafol 25g, detergent LS(to methoxyl group fatty acid amido benzene sulfonic acid sodium salt) 2g, dispersing agent NNO (sodium methylene bis-naphthalene sulfonate) 4g, white carbon 5g, kaolin adds to 100g mixture and carries out air-flow crushing, and obtained principle active component weight percentage is 30% wetting powder.
Embodiment 2:
By thifluzamide 6g, Flutriafol 20g, detergent LS3g, dispersing agent NNO 4g, white carbon 5g, kaolin adds to 100g mixture and carries out air-flow crushing, and obtained principle active component weight percentage is 26% wetting powder.
Embodiment 3:
By thifluzamide 4g, Flutriafol 30g, detergent LS3g, dispersing agent NNO 4g, white carbon 5g, kaolin adds to 100g mixture and carries out air-flow crushing, and obtained principle active component weight percentage is 34% wetting powder.
Embodiment 4:
Take 5g thifluzamide, 50g Flutriafol, phenethyl phenol polyethenoxy ether phosphate 3g, agriculture breast 33#2g, alkylphenol polyoxyethylene 1g, solvent naphtha 13g, adds water to 100g.The method above raw material being prepared routinely aqueous emulsion drops into the mixing of mixing kettle high speed, and making principle active component weight percentage is 55% thifluzamide-Flutriafol aqueous emulsion.
Embodiment 5:
Take 2g thifluzamide, 30g Flutriafol, calcium dodecyl benzene sulfonate 6g, phenethyl phenol polyethenoxy ether phosphate 3g, agriculture breast 33#2g, alkylphenol polyoxyethylene 1g, isopropyl alcohol 10g, adds water to 100g.The method above raw material being prepared routinely microemulsion drops in mixing kettle and mixes, and making principle active component weight percentage is 32% thifluzamide-Flutriafol microemulsion.
Embodiment 6:
Take 1g thifluzamide, 5g Flutriafol, phenethyl phenol polyethenoxy ether phosphate 3g, agriculture breast 33#2g, alkylphenol polyoxyethylene 1g, solvent naphtha 13g, adds water to 100g.The method above raw material being prepared routinely aqueous emulsion drops into the mixing of mixing kettle high speed, and making principle active component weight percentage is 6% thifluzamide-Flutriafol aqueous emulsion.
Embodiment 7:
Take 50g thifluzamide, 20g Flutriafol, calcium dodecyl benzene sulfonate 5g, phenethyl phenol polyethenoxy ether 2g, solvent naphtha are to 100g.The method above raw material being prepared routinely missible oil drops in mixing kettle and mixes, and making principle active component weight percentage is 70% thifluzamide-Flutriafol missible oil.
Embodiment 8:
Take 2g thifluzamide, 40g Flutriafol, calcium dodecyl benzene sulfonate 8g, phenethyl phenol polyethenoxy ether 5g, solvent naphtha are to 100g.The method above raw material being prepared routinely missible oil drops in mixing kettle and mixes, and making principle active component weight percentage is 42% thifluzamide-Flutriafol missible oil.
Embodiment 9:
Take 5g thifluzamide, 20g Flutriafol, calcium dodecyl benzene sulfonate 6g, phenethyl phenol polyethenoxy ether phosphate 3g, agriculture breast 33#2g, alkylphenol polyoxyethylene 1g, isopropyl alcohol 10g, adds water to 100g.The method above raw material being prepared routinely microemulsion drops in mixing kettle and mixes, and making principle active component weight percentage is 25% thifluzamide-Flutriafol microemulsion.
Embodiment 10:
Take 5g thifluzamide, 0.5g Flutriafol, calcium dodecyl benzene sulfonate 6g, phenethyl phenol polyethenoxy ether 7g, solvent naphtha are to 100g.The method above raw material being prepared routinely missible oil drops in mixing kettle and mixes, and making principle active component weight percentage is 5.5% thifluzamide-Flutriafol missible oil.
Embodiment 11:
Take 5g thifluzamide, 30g Flutriafol, calcium dodecyl benzene sulfonate 4g, phenethyl phenol polyethenoxy ether 4g, solvent naphtha are to 100g.The method above raw material being prepared routinely missible oil drops in mixing kettle and mixes, and making principle active component weight percentage is 35% thifluzamide-Flutriafol missible oil.
Embodiment 12:
Take 10g thifluzamide, 10g Flutriafol, lignin 2g, polyoxyethylene poly-oxygen propylene aether and sulphate 4g thereof, xanthans 0.15g, ethylene glycol 5g, silica ethane 0.10g, aluminium-magnesium silicate 0.5g, complement to 100g with water, under the effect of sand mill, make principle active component weight percentage is 20% thifluzamide-Flutriafol suspending agent.
Embodiment 13:
Take 30g thifluzamide, 12g Flutriafol, lignin 2g, polyoxyethylene poly-oxygen propylene aether and sulphate 4g thereof, xanthans 0.15g, ethylene glycol 5g, silica ethane 0.10g, aluminium-magnesium silicate 0.5g, complement to 100g with water, under the effect of sand mill, make principle active component weight percentage is 42% thifluzamide-Flutriafol suspending agent.
Embodiment 13:
Take 2g thifluzamide, 5g Flutriafol, wooden sodium sulfonate 8g, lauryl sodium sulfate 2g, ammonium sulfate 5g, polyvinyl alcohol 5g, borax 2g, diatomite 28g complements to 100g, and it is 7% thifluzamide-Flutriafol water dispersion granule that above raw material is made principle active component weight percentage by water dispersible granular agent method.
Embodiment 14:
Take 4g thifluzamide, 13g Flutriafol, wooden sodium sulfonate 8g, lauryl sodium sulfate 2g, ammonium sulfate 5g, polyvinyl alcohol 5g, borax 2g, diatomite 28g complements to 100g, and it is 17% thifluzamide-Flutriafol water dispersion granule that above raw material is made principle active component weight percentage by water dispersible granular agent method.
Embodiment 15:
Take 5g thifluzamide, 15g Flutriafol, lignin 2g, polyoxyethylene poly-oxygen propylene aether and sulphate 4g thereof, xanthans 0.15g, ethylene glycol 5g, silica ethane 0.10g, aluminium-magnesium silicate 0.5g, complement to 100g with water, under the effect of sand mill, make principle active component weight percentage is 20% thifluzamide-Flutriafol suspending agent.
Embodiment 16:
By thifluzamide 5g, Flutriafol 10g, detergent LS(to methoxyl group fatty acid amido benzene sulfonic acid sodium salt) 2g, dispersing agent NNO (sodium methylene bis-naphthalene sulfonate) 4g, white carbon 5g, kaolin adds to 100g mixture and carries out air-flow crushing, and obtained principle active component weight percentage is 15% wetting powder.
Embodiment 17:
By thifluzamide 10g, Flutriafol 40g, detergent LS3g, dispersing agent NNO 4g, white carbon 5g, kaolin adds to 100g mixture and carries out air-flow crushing, and obtained principle active component weight percentage is 50% wetting powder.
Claims (1)
1. a bactericidal composition, is characterized in that wherein the weight ratio of thifluzamide and Flutriafol is 1:5 ~ 20 with thifluzamide and Flutriafol for active ingredient.
2. bactericidal composition according to claim 1, is characterized in that both thifluzamide and Flutriafol gross weight percentage composition is in the composition 2-80%.
3. bactericidal composition according to claim 2, is characterized in that both thifluzamide and Flutriafol gross weight percentage composition is in the composition 5-50%.
4. bactericidal composition according to claim 3, is characterized in that both thifluzamide and Flutriafol gross weight percentage composition is in the composition 10-40%.
5. bactericidal composition according to claim 1, is characterized in that any one formulation for active ingredient and insecticides adjuvant are mixed with, agricultural chemicals allowed with thifluzamide and Flutriafol.
6. bactericidal composition according to claim 5, is characterized in that described formulation is missible oil, suspending agent, aqueous emulsion, wetting powder, microemulsion or water dispersion granule.
7. the application of bactericidal composition according to claim 1 in the medicine of preparation control Cereal, fruit tree, vegetable crop fungal disease.
8. application according to claim 7, is characterized in that the application of described bactericidal composition in the medicine preparing the water prevention rice sheath blight, rice blast, false smut, wheat sharp eyespot, moire disease, leaf spot, net blotch, smut, powdery mildew, rust, downy mildew.
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| CN101828559A (en) * | 2010-06-02 | 2010-09-15 | 陕西上格之路生物科学有限公司 | Agricultural sterilizing composite containing thifluzamide |
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| CN102657183A (en) * | 2012-04-12 | 2012-09-12 | 广西田园生化股份有限公司 | Thifluzamide-containing ultra low volume liquid formulation |
-
2012
- 2012-08-04 CN CN201210276892.9A patent/CN103563921B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043127A (en) * | 1988-11-29 | 1990-06-20 | 孟山都公司 | Substituted thiazole and mycocide purposes thereof |
| WO2006069716A1 (en) * | 2004-12-23 | 2006-07-06 | Basf Aktiengesellschaft | Fungicidal mixtures |
| CN101267735A (en) * | 2005-08-05 | 2008-09-17 | 巴斯夫欧洲公司 | Fungicidal mixtures comprising N-[2-(haloalk(enyl)oxy)phenyl]carboxamides |
| CN101828559A (en) * | 2010-06-02 | 2010-09-15 | 陕西上格之路生物科学有限公司 | Agricultural sterilizing composite containing thifluzamide |
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