CN103563922A - Bactericidal composition containing thifluzamide and chlorothalonil and application thereof - Google Patents
Bactericidal composition containing thifluzamide and chlorothalonil and application thereof Download PDFInfo
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- CN103563922A CN103563922A CN201210276970.5A CN201210276970A CN103563922A CN 103563922 A CN103563922 A CN 103563922A CN 201210276970 A CN201210276970 A CN 201210276970A CN 103563922 A CN103563922 A CN 103563922A
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Abstract
The invention belongs to the field of agriculture, and discloses a bactericidal composition containing thifluzamide and chlorothalonil and application thereof. The bactericidal composition uses thifluzamide and chlorothalonil as main effective components, wherein the weight ratio of the thifluzamide to the chlorothalonil is (1-70):(1-50), and the thifluzamide and chlorothalonil account for 2-80 wt% of the composition. The bactericidal composition can be used for preventing and treating diseases on cereals, fruit trees and vegetable crops, has higher synergic effect, overcomes and postpones the drug resistance of pathogenic bacteria, has the advantages of high bactericidal speed and long duration time, lowers the use cost, and has obviously better preventing and treating effects than a single agent.
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 application thereof containing thifluzamide and tpn.
Background technology
Thifluzamide (Thifluzamide), chemical name: 2', the bromo-2-methyl-4'-of 6'-bis-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, in fungi tricarbonic acid cycle, suppress the synthetic of succinate dehydrogenase, there is very strong interior suction conductivity simultaneously, can be for paddy rice, other cereal crops, lawn, peanut, potato etc., effective to pathomycetes such as black minute Pseudomonas of Rhizoctonia, Puccinia, raw meat, corticium, Ustilagos, the disease especially basidiomycetes Rhizoctonia being caused has 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, once be just difficult for recovering with Binding Capacity, and this medicine still has powerful protection effect aspect seed treatment, under recommended dose, to crop safety, be a very outstanding bactericide kind.But this medicine cost is higher, while using separately, resistance produces speed.
Tpn (Chlorothalonil), chemical name: 2,4,5,6-tetrachloro-1,3-benzene dinitrile, structural formula is as follows:
Tpn is wide spectrum, protectiveness nitrile bactericide.The mechanism of action be can with fungal cell in glyceraldehyde 3-phosphate dehydrogenase have an effect, tie mutually entirely with the protein that contains cysteine in this enzyme, thereby destroy this enzymic activity, make fungal cell's metabolism be damaged and lose one's life power.Tpn does not have interior suction conduction, but after being sprayed onto on plant corpus, can on body surface, have good tackness, be difficult for being fallen by rain drop erosion, so the drug effect phase is longer.Tpn is under positive common medicine, and the general drug effect phase reached about 10 days.Tpn is mainly used in preventing and treating various fungal diseases, be applicable to the tens of kinds of crops such as wheat, paddy rice, corn, wild cabbage, oranges and tangerines, tobacco, melon, peanut, controlling object comprises a lot of fungal diseases such as epidemic disease, downy mildew, brown spot, defoliation, ring spot, powdery mildew, shot hole, gray mold.
Rice sheath blight disease, rice blast, false smut, wheat sharp eyespot, loose kernel smut, bunt, glume blight, powdery mildew, rust, shot hole, gray mold, downy mildew morbidity are seriously, often cause catastrophic loss, although thifluzamide, tpn have comparatively desirable control efficiency, but in actual applications, the difficulty of prevention and cure of phytopathogen is increasing: on the one hand, change along with pattern of farming, the economic crops such as melon and fruit, vegetables cultivated area progressively expands, and 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 lasting medicament selection pressure, 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 for above-mentioned technical problem provide a kind of applied widely, cost is low, effective containing the bactericidal composition of thifluzamide and tpn.
Another object of the present invention is to provide the application of this bactericidal composition.
The object of the invention is to realize by following technical proposal:
, it take thifluzamide and tpn is main active ingredient, and wherein thifluzamide and tpn weight ratio are 1 ~ 70: 1 ~ 50, and wherein in bactericidal composition, effective ingredient is present in composition with synergy effective dose.
Described bactericidal composition, wherein thifluzamide and tpn weight ratio are preferably 5 ~ 50: 10 ~ 50, more preferably 5 ~ 40: 10 ~ 30, particularly preferably 1: 0.1 ~ 20.
In the present composition, the two gross weight percentage composition accounting in composition at composition of thifluzamide and tpn is 2 ~ 80%.Be preferably 5 ~ 50%, most preferably 10 ~ 40%.
Described bactericidal composition, wherein thifluzamide and tpn and known auxiliary agent, excipient are re-dubbed any one formulation allowing on agricultural chemicals.These known auxiliary agents have dispersant, diffusant, defoamer, wetting agent, disintegrant, excipients etc., can adopt calcium dodecyl benzene sulfonate, alkylphenol polyoxyethylene, the rare block compound of polyoxyethylene polyoxy third (as agriculture breast 33
#), the one or more combinations in castor oil polyoxyethylene ether, polyoxyethylene nonylphenol ether, tween series, fatty alcohol-polyoxyethylene ether, polyethylene glycol series etc., excipient comprises cyclohexanone, dimethylbenzene, solvent naphtha, water, antifreezing agent (as propane diols), deionized water etc.Above auxiliary agent and other auxiliary material can 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 the fungal disease of preparation control Cereal, fruit tree or vegetables.
Described bactericidal composition is is preferably prevented and treated rice sheath blight disease, rice blast, false smut in preparation, wheat sharp eyespot, loose kernel smut, bunt, glume blight, powdery mildew, the application in the medicine of rust, shot hole, gray mold, downy mildew.
Beneficial effect of the present invention:
1, the present invention's thifluzamide used is thiazole amide bactericide, tpn is a kind of inhibitor of energy, the mechanism of action is different, mutually be mixed and can not produce low touching, compare with single dose, the two combines use, has obvious synergistic function, reduce dosage, reduce production cost and control recruitment, drug cost; Being used in conjunction of thifluzamide and tpn also overcomes and delayed pesticide resistance simultaneously, and expanding prevention spectrum, has obviously improved control efficiency.
2, the present composition scope of application increases, be applicable to prevent and treat the crop pest of Cereal, fruit tree, vegetables, particularly prevent and treat the crop pests such as paddy rice, wheat, potato, fruit tree, as rice sheath blight disease, rice blast, false smut, wheat sharp eyespot, loose kernel smut, bunt, glume blight, powdery mildew, rust, shot hole, gray mold, downy mildew.
Bactericidal composition of the present invention has good control efficiency to sac fungi, basidiomycetes, imperfect fungus and Oomycete fungal disease; Its successful is used higher than its single dose.
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.
Embodiment 1:
By thifluzamide 5g, tpn 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, makes the wetting powder that main active ingredient weight percentage is 30%.
Embodiment 2:
By thifluzamide 3g, tpn 10g, detergent LS3g, dispersing agent NNO 4g, white carbon 5g, kaolin adds to 100g mixture and carries out air-flow crushing, and making main active ingredient weight percentage is 13% wetting powder.
Embodiment 3:
By thifluzamide 4g, tpn 30g, detergent LS3g, dispersing agent NNO 4g, white carbon 5g, kaolin adds to 100g mixture and carries out air-flow crushing, and making main active ingredient weight percentage is 34% wetting powder.
Embodiment 4:
Take 5g thifluzamide, 50g tpn, phenethyl phenol polyethenoxy ether phosphate 3g, agriculture breast 33#2g, alkylphenol polyoxyethylene 1g, solvent naphtha 13g, adds water to 100g.The method of above raw material being prepared routinely to aqueous emulsion drops into the mixing of mixing kettle high speed, and making main active ingredient weight percentage is 55% thifluzamide-tpn aqueous emulsion.
Embodiment 5:
Take 2g thifluzamide, 30g tpn, 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 that above raw material is prepared to microemulsion routinely drops in mixing kettle mixes, and making main active ingredient weight percentage is 32% thifluzamide-chlorothalonil microemulsion.
Embodiment 6:
Take 1g thifluzamide, 5g tpn, phenethyl phenol polyethenoxy ether phosphate 3g, agriculture breast 33#2g, alkylphenol polyoxyethylene 1g, solvent naphtha 13g, adds water to 100g.The method of above raw material being prepared routinely to aqueous emulsion drops into the mixing of mixing kettle high speed, and making main active ingredient weight percentage is 6% thifluzamide-tpn aqueous emulsion.
Embodiment 7:
Take 50g thifluzamide, 20g tpn, calcium dodecyl benzene sulfonate 5g, phenethyl phenol polyethenoxy ether 2g, solubilizer oil are to 100g.The method that above raw material is prepared to missible oil routinely drops in mixing kettle mixes, and making main active ingredient weight percentage is 70% thifluzamide-tpn missible oil.
Embodiment 8:
Take 2g thifluzamide, 40g tpn, calcium dodecyl benzene sulfonate 8g, phenethyl phenol polyethenoxy ether 5g, solubilizer oil are to 100g.The method that above raw material is prepared to missible oil routinely drops in mixing kettle mixes, and making main active ingredient weight percentage is 42% thifluzamide-tpn missible oil.
Embodiment 9:
Take 5g thifluzamide, 20g tpn, 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 that above raw material is prepared to microemulsion routinely drops in mixing kettle mixes, and making main active ingredient weight percentage is 25% thifluzamide-chlorothalonil microemulsion.
Embodiment 10:
Take 5g thifluzamide, 0.5g tpn, calcium dodecyl benzene sulfonate 6g, phenethyl phenol polyethenoxy ether 7g, solubilizer oil are to 100g.The method that above raw material is prepared to missible oil routinely drops in mixing kettle mixes, and making main active ingredient weight percentage is 5.5% thifluzamide-tpn missible oil.
Embodiment 11:
Take 5g thifluzamide, 30g tpn, calcium dodecyl benzene sulfonate 4g, phenethyl phenol polyethenoxy ether 4g, solubilizer oil are to 100g.The method that above raw material is prepared to missible oil routinely drops in mixing kettle mixes, and making main active ingredient weight percentage is 35% thifluzamide-tpn missible oil.
Embodiment 12:
Take 10g thifluzamide, 10g tpn, 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, water complements to 100g, and under the effect of sand mill, making main active ingredient weight percentage is 20% thifluzamide-tpn suspending agent.
Embodiment 13:
Take 30g thifluzamide, 12g tpn, 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, water complements to 100g, and under the effect of sand mill, making main active ingredient weight percentage is 42% thifluzamide-tpn suspending agent.
Embodiment 13:
Take 2g thifluzamide, 5g tpn, the 8g of wooden sodium sulfonate, lauryl sodium sulfate 2g, ammonium sulfate 5g, polyvinyl alcohol 5g, borax 2g, diatomite 28g complements to 100g, and it is 7% thifluzamide-tpn water dispersion granule that above raw material is made to main active ingredient weight percentage by water dispersible granular agent method.
Embodiment 14:
Take 4g thifluzamide, 13g tpn, the 8g of wooden sodium sulfonate, lauryl sodium sulfate 2g, ammonium sulfate 5g, polyvinyl alcohol 5g, borax 2g, diatomite 28g complements to 100g, and it is 17% thifluzamide-tpn water dispersion granule that above raw material is made to main active ingredient weight percentage by water dispersible granular agent method.
Embodiment 15:
Take 5g thifluzamide, 15g tpn, 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, water complements to 100g, and under the effect of sand mill, making main active ingredient weight percentage is 20% thifluzamide-tpn suspending agent.
Embodiment 16:
By thifluzamide 5g, tpn 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, makes the wetting powder that main active ingredient weight percentage is 15%.
Embodiment 17:
By thifluzamide 10g, tpn 40g, detergent LS3g, dispersing agent NNO 4g, white carbon 5g, kaolin adds to 100g mixture and carries out air-flow crushing, and making main active ingredient weight percentage is 50% wetting powder.
Embodiment 18:
Indoor biometrics test:
In indoor employing mycelial growth rate method, measure the EC of different medicaments to bacterial strain
50value, adopts co-toxicity coefficient computational methods, calculates the co-toxicity coefficient (CTC) of mixture, determines the synergy of mixture, and circular is as follows:
The a certain single dose of take in mixture (is selected EC conventionally as standard medicament
50junior), calculate:
Single dose toxicity index=standard medicament 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
The classification of co-toxicity coefficient: CTC is greater than 120 o'clock mixtures and has synergetic, and it is antagonism that CTC is less than at 80 o'clock, and CTC is summation action between 80-120.
Table 1: the indoor biometrics result of the different proportionings of thifluzamide+tpn to wheat powdery mildew (Erysiphe graminisDC.f.sp.triticlE.Marchal)
| Medicament | Virulence regression equation | EC50（mg/L） | Co-toxicity coefficient |
| 240g/L thifluzamide SC | Y=2.7957X+1.4742 | 18.2465 | - |
| 25% tpn WDG | Y=2.3409X+1.5085 | 31.0124 | - |
| Embodiment 1 | Y=2.0257X+2.5313 | 16.5454 | 167 |
| Embodiment 2 | Y=2.5415X+2.2585 | 11.9871 | 224 |
| Embodiment 3 | Y=1.3253X+3.4574 | 14.5870 | 196 |
Field control effectiveness test:
The pesticidal preparations control wheat powdery mildew test making with above-described embodiment.
1, test is processed: this test medicine consumption is established respectively three concentration for the treatment of according to the difference of each composition, and contrast medicament is respectively agricultural chemicals 25% tpn WDG and 240g/L thifluzamide SC and the test of blank clear water.
2, each community 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 points in test treatment region, check Occurrence Degree of Wheat Powdery Mildew.
3, result of the test sees the following form:
Note: a is illustrated in the level of α=0.05 remarkable, and b is illustrated in the level of α=0.05 variant, and c is illustrated in the level of α=0.05 not remarkable.
By indoor biometrics and field efficacy result, show, thifluzamide and tpn composition have obvious synergistic function, and the control efficiency of composition is good, and control efficiency is all better than single dose kind, in agricultural application, have using value.
Claims (10)
1. a bactericidal composition that contains thifluzamide and tpn, is characterized in that take that thifluzamide and tpn are as main active ingredient, and wherein the weight ratio of thifluzamide and tpn is 1～70: 1～50.
2. bactericidal composition according to claim 1, the weight ratio that it is characterized in that thifluzamide and tpn is 5～50:10～50.
3. bactericidal composition according to claim 2, is characterized in that described thifluzamide and the weight ratio of tpn are 5～40: 10～30; Preferably 1: 0.1～20.
4. bactericidal composition according to claim 1, is characterized in that main active ingredient thifluzamide and the tpn gross weight percentage composition in described composition is 2-80%.
5. bactericidal composition according to claim 4, is characterized in that main active ingredient thifluzamide and the tpn gross weight percentage composition in described composition is 5-50%.
6. bactericidal composition according to claim 5, is characterized in that main active ingredient thifluzamide and the tpn gross weight percentage composition in described composition is 10-40%.
7. bactericidal composition according to claim 1, is characterized in that this bactericidal composition take thifluzamide and tpn and be mixed with any one formulation allowing on agricultural chemicals as main active ingredient and insecticides adjuvant, excipient.
8. bactericidal composition according to claim 7, is characterized in that described formulation is missible oil, suspending agent, aqueous emulsion, wetting powder, microemulsion or water dispersion granule.
9. the application of the bactericidal composition containing thifluzamide and tpn claimed in claim 1 in the medicine of the fungal disease of preparation control Cereal, fruit tree or vegetables.
10. application according to claim 9, bactericidal composition described in it is characterized in that is prevented and treated rice sheath blight disease, rice blast, false smut in preparation, wheat sharp eyespot, loose kernel smut, bunt, glume blight, powdery mildew, the application in the medicine of rust, shot hole, gray mold, downy mildew.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106889086A (en) * | 2017-03-08 | 2017-06-27 | 南京华洲药业有限公司 | A kind of bactericidal composition and its application containing Hexanaphthene flusulfamide and thifluzamide |
| CN108935495A (en) * | 2017-05-22 | 2018-12-07 | 广东广康生化科技股份有限公司 | A kind of effective component includes the Bactericidal composite of folpet and thifluzamide |
| CN111066818A (en) * | 2019-12-20 | 2020-04-28 | 利民化学有限责任公司 | Composition containing copper calcium sulfate and chlorothalonil and application thereof |
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| WO2012031061A2 (en) * | 2010-09-01 | 2012-03-08 | E. I. Du Pont De Nemours And Company | Fungicidal pyrazoles and their mixtures |
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2012
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012031061A2 (en) * | 2010-09-01 | 2012-03-08 | E. I. Du Pont De Nemours And Company | Fungicidal pyrazoles and their mixtures |
Non-Patent Citations (2)
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| 孙攀，孙俊清: "3种杀菌剂防治水稻纹枯病药效试验", 《现代农业科技》 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106889086A (en) * | 2017-03-08 | 2017-06-27 | 南京华洲药业有限公司 | A kind of bactericidal composition and its application containing Hexanaphthene flusulfamide and thifluzamide |
| CN108935495A (en) * | 2017-05-22 | 2018-12-07 | 广东广康生化科技股份有限公司 | A kind of effective component includes the Bactericidal composite of folpet and thifluzamide |
| CN111066818A (en) * | 2019-12-20 | 2020-04-28 | 利民化学有限责任公司 | Composition containing copper calcium sulfate and chlorothalonil and application thereof |
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| CN103563922B (en) | 2015-09-30 |
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Effective date of registration: 20180516 Address after: 211318 Dongfeng Road 8, Yalong Town, Gaochun, Nanjing, Jiangsu Co-patentee after: Nanjing Redsun Co., Ltd. Patentee after: Nanjing Huazhou Pharmaceutical Co., Ltd. Address before: 211318 Dongfeng Road 8, Yalong Town, Gaochun, Nanjing, Jiangsu Patentee before: Nanjing Huazhou Pharmaceutical Co., Ltd. |
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