CN103563942A - Bactericidal composition containing pyraclostrobin and epoxiconazole and application thereof - Google Patents
Bactericidal composition containing pyraclostrobin and epoxiconazole and application thereof Download PDFInfo
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- CN103563942A CN103563942A CN201210276966.9A CN201210276966A CN103563942A CN 103563942 A CN103563942 A CN 103563942A CN 201210276966 A CN201210276966 A CN 201210276966A CN 103563942 A CN103563942 A CN 103563942A
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- epoxiconazole
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Abstract
The invention discloses a bactericidal composition containing pyraclostrobin and epoxiconazole and application thereof. The bactericidal composition uses the pyraclostrobin and epoxiconazole as main effective components, wherein the weight ratio of the pyraclostrobin to the epoxiconazole is (1-70):(1-50). The bactericidal composition can be used for preventing and treating diseases on cereals, melons and fruits, or 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. The bactericidal composition be used for preventing and treating fungus diseases on the crops, especially can be used for preventing and treating leaf blight, rust disease, powdery mildew, downy mildew, epidemic disease, anthracnose, white rot, scab, brown spot, seedling blight, gray mold, clubroot, late blight and other fungus diseases on cereals, melons and fruits or vegetable crops, and has better effect than a single agent.
Description
Technical field:
The present invention relates to a kind of bactericidal composition and uses thereof, especially a kind ofly take bactericidal composition and the application thereof that pyraclostrobin and epoxiconazole be main active.
Background technology
Pyraclostrobin (Pyraclostrobin), has another name called: pyraclostrobin, chemical name is N-methoxyl group-N-2-[(N-rubigan)-3-pyrazoles oxygen ylmethyl] carbanilate.Structural formula is as follows:
Pyraclostrobin toxicity is low: rat oral >5000, and through skin >2000, to lagophthalmos eyeball nonirritant, without potential mutagenicity, without teratogenesis carcinogenicity, harmless to honeybee, hydrolysising half-life DT in water
50>30d, stable during pH5-7, Photolysis Half DT in water
50<2h, large Tanaka's soil half life period DT
502-37d.This compound not only toxicity is low, to non-target organism safety, and also all friendly safely to user and environment, by U.S. EPA, classified as " the candidate's medicament that reduces risk ".Pyraclostrobin is a kind of mitochondrial respiratory inhibitor, and it,, by suppressing electron transport system in mitochondria, present antibacterial activity, and pyraclostrobin has significant volume increase with protein complex III effect.This medicament can hinder spore-germination, gemma growth, mycelia intrusion, hapteron formation and the sporulation in pathogen living chain and cause effect, especially spore-germination is had to extremely strong inhibitory action, therefore there is distinguished preventive effect.Simultaneously, it has osmotic effect in very strong leaf and has very high rain fastness, can be used for the various crops such as wheat, peanut, paddy rice, vegetables, fruit tree, tobacco, tea tree, ornamental plants, lawn, the multiple diseases such as control sac fungi, basidiomycetes, imperfect fungus and the fungus-caused leaf blight of Oomycete, rust, powdery mildew, downy mildew, epidemic disease, anthracnose, S.scabies, brown spot, damping off.Pyraclostrobin is mainly applicable to protection and morbidity is used early stage.
Epoxiconazole (Epoxiconazol), chemical name: (2RS, 3SR)-1-[3-(2-chlorphenyl)-2,3-oxo bridge-2-(4-fluorophenyl) propyl group]-1H-1,2,4-triazole, structural formula is as follows:
Epoxiconazole belongs to interior absorption triazole bactericidal agent, its active component epoxiconazole suppresses the synthetic of germ ergosterol, hinder the formation of germ cell wall, and epoxiconazole molecule has powerful compatibility to a kind of fungal enzyme (14-dencthylase), compare with at present known bactericide, can more effectively suppress germ fungal pathogens.Epoxiconazole can improve all fourth matter enzymic activitys of crop, causes the contraction of fungi haustorium, suppresses germ and invades, and this is epoxiconazole unique characteristic in all triazole type products.The diseases such as the anthracnose on leaf spot, powdery mildew, rust and grape on the crops such as banana, green onion garlic, celery, Kidney bean, melon, asparagus, peanut, beet, white rot are had to good preventive effect.In this product, absorption is strong, can by plant, be absorbed rapidly and conduct to susceptible position, disease is infected immediately and stop, and local dispenser control thoroughly.Lasting period is splendid, and as the bacteriostasis on cereal can reach more than 40 days, effect is stayed in remarkable holding, and has reduced medication number of times and labour costs.Can effectively control disease, can improve the biochemical disease resistance of crop self by the activity of regulatory enzyme again, the disease resistance of crop itself is strengthened greatly.Make leaf look greener, thereby guarantee that crop photosynthesis maximizes, and improves output and improves quality.Using dosage is generally 75～125 grams of active ingredient/hectares, and spraying is processed.
The difficulty of prevention and cure of phytopathogen is increasing at present, and on the one hand, along with the change of pattern of farming, the economic crops cultivated areas such as melon and fruit, vegetables progressively expand, 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, the plant bactericidal composition of effective pyraclostrobin-containing and epoxiconazole.
A further object of the invention is to provide the application of this bactericidal composition on preparation control resistance plant fungal disease germ killing drugs.
The object of the invention is to realize by following measures:
, it contains pyraclostrobin and epoxiconazole, and wherein pyraclostrobin and epoxiconazole 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 pyraclostrobin and epoxiconazole weight ratio are preferably 5 ~ 50:10 ~ 50, more preferably 5 ~ 40:10 ~ 30.
In the present composition, the two percentage by weight that accounts for composition of pyraclostrobin and epoxiconazole is 2% ~ 80%.Be preferably 5% ~ 50%, most preferably 8% ~ 40%.
Described bactericidal composition, wherein take pyraclostrobin and epoxiconazole to be re-dubbed any one formulation allowing on agricultural chemicals as main active ingredient and known auxiliary agent and excipient.These known auxiliary agents, excipient have dispersant, diffusant, defoamer, wetting agent, disintegrant etc.Auxiliary agent 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 polyoxyethylene nonylphenol ether etc., excipient comprises cyclohexanone, dimethylbenzene, solvent naphtha, water, antifreezing agent (as propane diols), deionized water etc.Above auxiliary agent, excipient and other auxiliary material can alone or and use.
Described bactericidal composition, its formulation is missible oil, suspending agent, aqueous emulsion, wetting powder, microemulsion or water dispersible granules.
The application of described bactericidal composition on preparation control resistance plant fungal disease germ killing drugs.
Above-mentioned this bactericidal composition that is applied as occurs in the application on the fungal disease germ killing drugs such as leaf blight on Cereal, melon and fruit or vegetable crop, rust, powdery mildew, downy mildew, epidemic disease, anthracnose, white rot, S.scabies, brown spot, damping off, gray mold, club root, late blight in preparation control.
Beneficial effect of the present invention:
1, the present invention's pyraclostrobin used is methoxy acrylate bactericide, and epoxiconazole is triazole bactericidal agent, and the mechanism of action is different, be mutually mixed and can not produce conflict, but can Synergistic, reduce dosage, reduce costs.
2, the present composition scope of application increases, be applicable to prevent and treat the crop pest of Cereal, various melon and fruit, vegetables, particularly prevent and treat the crop pests such as paddy rice, wheat, beet, peanut, rape, lawn, coffee, banana, green onion garlic, celery, Kidney bean, melon, asparagus, as the anthracnose on leaf spot, powdery mildew, rust and grape, white rot etc.
Bactericidal composition of the present invention has good control efficiency to sac fungi, basidiomycetes, imperfect fungus and Oomycete fungal disease; And suppress insect or the drug-fast generation of fungi to unitary agent (pyraclostrobin and epoxiconazole are arbitrary).
Bactericidal composition of the present invention is prevented and treated the application on resistance fungi in preparation, especially in the application that prevents and treats leaf spot, rust, powdery mildew, downy mildew, epidemic disease, anthracnose, brown spot etc., all has significant effect.Above-mentioned bactericidal composition can produce higher synergistic function, and the consumption of the independent reactive compound of amount ratio of this mixture reduces greatly, and the activity of mixture is greater than the activity of independent component.
Beneficial effect of the present invention compared with prior art: (1) is compared with single dose, said composition antagonism fungal disease has obvious synergistic function as fungal diseases such as leaf spot, rust, powdery mildew, downy mildew, epidemic disease, anthracnose, brown spots, overcome and delayed pesticide resistance, expanding prevention spectrum, has obviously improved control efficiency; (2) reduce control recruitment, drug cost; (3) alternative routine and the easily agricultural chemicals of generation resistance; (4) compare with single dose, produce and use cost reduction; (5) the drug-fast generation of Antifungi, 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.Two kinds of reactive compounds can be processed into any one formulation of permission, and below with two kinds of preparations that active ingredient is processed into of specific embodiment explanation, but the preparation that these two kinds of active components can be processed is not limited only to following listed.
Embodiment 1:
By pyraclostrobin 7.5g, epoxiconazole 7.5g, detergent LS(to methoxyl group fatty acyl 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 making main active ingredient weight percentage is 15% wetting powder.
Embodiment 2:
By pyraclostrobin 3g, epoxiconazole 12g, detergent LS 3g, 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 15% wetting powder.
Embodiment 3:
By pyraclostrobin 2g, epoxiconazole 13g, detergent LS 3g, 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 15% wetting powder.
Embodiment 4:
Take 5g pyraclostrobin, 50g epoxiconazole, 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% pyraclostrobin epoxiconazole aqueous emulsion.
Embodiment 5:
Take 10g pyraclostrobin, 30g epoxiconazole, 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 40% pyraclostrobin-epoxiconazole microemulsion.
Embodiment 6:
Take 1g pyraclostrobin, 5g epoxiconazole, 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% pyraclostrobin epoxiconazole aqueous emulsion.
Embodiment 7:
Take 50g pyraclostrobin, 20g epoxiconazole, calcium dodecyl benzene sulfonate 5g, phenethyl phenol polyethenoxy ether 2g, solvent naphtha 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% pyraclostrobin epoxiconazole missible oil.
Embodiment 8:
Take 2g pyraclostrobin, 40g epoxiconazole, calcium dodecyl benzene sulfonate 8g, phenethyl phenol polyethenoxy ether 5g, solvent naphtha 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% pyraclostrobin epoxiconazole missible oil.
Embodiment 9:
Take 5g pyraclostrobin, 20g epoxiconazole, 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% pyraclostrobin epoxiconazole microemulsion.
Embodiment 10:
Take 20g pyraclostrobin, 10g epoxiconazole, calcium dodecyl benzene sulfonate 6g, phenethyl phenol polyethenoxy ether 7g, solvent naphtha 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 30% pyraclostrobin epoxiconazole missible oil.
Embodiment 11:
Take 5g pyraclostrobin, 30g epoxiconazole, calcium dodecyl benzene sulfonate 4g, phenethyl phenol polyethenoxy ether 4g, solvent naphtha 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% pyraclostrobin epoxiconazole missible oil.
Embodiment 12:
Take 10g pyraclostrobin, 10g epoxiconazole, lignin 2g, alkyl phenol (or fatty alcohol) 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% pyraclostrobin epoxiconazole suspension concentrate.
Embodiment 13:
Take 30g pyraclostrobin, 12g epoxiconazole, lignin 2g, alkyl phenol (or fatty alcohol) 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% pyraclostrobin epoxiconazole suspension concentrate.
Embodiment 14:
Take 2g pyraclostrobin, 5g epoxiconazole, sodium lignin sulfonate 8g, lauryl sodium sulfate 2g, ammonium sulfate 5g, polyvinyl alcohol 5g, borax 2g, diatomite complements to 100g, and it is 7% pyraclostrobin epoxiconazole water dispersant that above raw material is made to main active ingredient weight percentage by water-dispersible grain agent method.
Embodiment 15:
Take 4g pyraclostrobin, 13g epoxiconazole, sodium lignin sulfonate 8g, lauryl sodium sulfate 2g, ammonium sulfate 5g, polyvinyl alcohol 5g, borax 2g, diatomite complements to 100g, and it is 17% pyraclostrobin epoxiconazole water dispersant that above raw material is made to main active ingredient weight percentage by water-dispersible grain agent method.
Embodiment 16:
Take 70g pyraclostrobin, 2g epoxiconazole, lignin 2g, alkyl phenol (or fatty alcohol) 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 72% pyraclostrobin epoxiconazole suspension concentrate.
Indoor biometrics test:
In indoor employing mycelial growth rate method, measure the EC of different medicaments to bacterial strain
50be worth, adopt the co-toxicity coefficient computational methods of the abundant introduction of Sun Yun, calculate the co-toxicity coefficient (CTC) of mixture, determine the synergy of mixture.
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
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 pyraclostrobin+epoxiconazole to tomato rhizoctonia solani
| Medicament | Virulence regression equation | EC50（mg/L） | Co-toxicity coefficient |
| 24% pyraclostrobin EC | Y=?4.1947X+?2.1235 | 4.8500 | — |
| 12.5% epoxiconazole SC | Y=?1.7764X+?1.4429 | 100.56 | — |
| Embodiment 1 | Y=?1.9819X+?3.4939 | 5.7534 | 162.1 |
| Embodiment 2 | Y=?2.0787X+?2.9021 | 10.2142 | 197.9 |
| Embodiment 3 | Y=?1.1313X+?3.5224 | 20.2342 | 140.9 |
Field control effectiveness test:
The pesticidal preparations making with above-described embodiment is prevented and treated powdery mildew of cucumber test.
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 commercially available agricultural chemicals 12.5% epoxiconazole SC(suspending agent) and 24% pyraclostrobin EC(missible oil) 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 powdery mildew of cucumber occurrence degree.
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, pyraclostrobin and epoxiconazole 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, is characterized in that containing pyraclostrobin and epoxiconazole, and wherein the weight ratio of pyraclostrobin and epoxiconazole is 1 ~ 70:1 ~ 50.
2. bactericidal composition according to claim 1, the weight ratio that it is characterized in that pyraclostrobin and epoxiconazole is 5 ~ 50:10 ~ 50.
3. bactericidal composition according to claim 2, is characterized in that described pyraclostrobin and the weight ratio of epoxiconazole are 5 ~ 40:10 ~ 30.
4. bactericidal composition according to claim 1, is characterized in that the two weight percentage that accounts for composition of pyraclostrobin and epoxiconazole is 2% ~ 80%.
5. bactericidal composition according to claim 4, is characterized in that the two weight percentage that accounts for composition of pyraclostrobin and epoxiconazole is 5% ~ 50%.
6. bactericidal composition according to claim 5, is characterized in that the two weight percentage that accounts for composition of pyraclostrobin and epoxiconazole is 8% ~ 40%.
7. bactericidal composition according to claim 1, is characterized in that take that pyraclostrobin and epoxiconazole are 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 dispersible granules.
9. the application of bactericidal composition claimed in claim 1 on preparation control resistance plant fungal disease germ killing drugs.
10. this bactericidal composition that is applied as according to claim 9 occurs in the application on the fungal disease germ killing drugs such as leaf blight on Cereal, melon and fruit or vegetable crop, rust, powdery mildew, downy mildew, epidemic disease, anthracnose, white rot, S.scabies, brown spot, damping off, gray mold, club root, late blight in preparation control.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105076171A (en) * | 2015-09-25 | 2015-11-25 | 安徽美兰农业发展股份有限公司 | Pyraclostrobin and epoxiconazole compound suspending agent and preparation method thereof |
| CN108260596A (en) * | 2016-12-30 | 2018-07-10 | 山东潍坊润丰化工股份有限公司 | A kind of bactericidal composition containing pyraclostrobin and epoxiconazole, fungicide and its application |
| CN110074117A (en) * | 2018-12-07 | 2019-08-02 | 河南豫之星作物保护有限公司 | It a kind of sigatoka bactericidal composition and its is applied in sigatoka prevention and treatment |
| CN113575604A (en) * | 2021-08-09 | 2021-11-02 | 惠州市银农科技股份有限公司 | Water suspending agent containing pyraclostrobin and epoxiconazole and preparation method thereof |
| CN114651822A (en) * | 2022-03-24 | 2022-06-24 | 赣南师范大学 | Composition, medicine and application of composition and medicine in prevention and treatment of citrus anthracnose |
| CN114916553A (en) * | 2022-03-14 | 2022-08-19 | 河南豫之星作物保护有限公司 | Bactericidal composition for wheat scab and corn northern leaf blight |
| CN115885984A (en) * | 2022-12-09 | 2023-04-04 | 上海悦联生物科技有限公司 | Pyraclostrobin and epoxiconazole microemulsion as well as preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110074117A (en) * | 2018-12-07 | 2019-08-02 | 河南豫之星作物保护有限公司 | It a kind of sigatoka bactericidal composition and its is applied in sigatoka prevention and treatment |
| CN113575604A (en) * | 2021-08-09 | 2021-11-02 | 惠州市银农科技股份有限公司 | Water suspending agent containing pyraclostrobin and epoxiconazole and preparation method thereof |
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| CN114916553B (en) * | 2022-03-14 | 2023-09-08 | 河南豫之星作物保护有限公司 | Sterilization composition for wheat scab and corn northern leaf blight |
| CN114651822A (en) * | 2022-03-24 | 2022-06-24 | 赣南师范大学 | Composition, medicine and application of composition and medicine in prevention and treatment of citrus anthracnose |
| CN114651822B (en) * | 2022-03-24 | 2024-02-13 | 赣南师范大学 | Composition, medicine and application thereof in preventing and controlling citrus anthracnose |
| CN115885984A (en) * | 2022-12-09 | 2023-04-04 | 上海悦联生物科技有限公司 | Pyraclostrobin and epoxiconazole microemulsion as well as preparation method and application thereof |
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Application publication date: 20140212 |