CN103563976A - Bactericidal composition containing pyraclostrobin and iprobenfos and application thereof - Google Patents
Bactericidal composition containing pyraclostrobin and iprobenfos and application thereof Download PDFInfo
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- CN103563976A CN103563976A CN201210281826.0A CN201210281826A CN103563976A CN 103563976 A CN103563976 A CN 103563976A CN 201210281826 A CN201210281826 A CN 201210281826A CN 103563976 A CN103563976 A CN 103563976A
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Abstract
The invention discloses a bactericidal composition containing pyraclostrobin and iprobenfos and application thereof. The bactericidal composition uses the pyraclostrobin and iprobenfos as main effective components, wherein the weight ratio of the pyraclostrobin to the iprobenfos 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, rice blast, rust disease, powdery mildew, banana freckle, downy mildew, epidemic disease, anthracnose, brown spot, seedling blight, gray mold 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 iprobenfos 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.
Iprobenfos (Iprobenfos), chemical name: O, O-diisopropyl-S-benzyl sulfuration phosphate, structural formula is as follows:
Absorption organophosphorus fungicide in iprobenfos belongs to, is mainly used in preventing and treating rice blast, and drug effect is higher than kitazine, and the lasting period is longer.Plant is had to interior suction conduction, can stop mycelial growth and sporulation, have preventive and therapeutic action concurrently.Iprobenfos also has control efficiency to rice sheath blight disease, culm rot and rice fulgorid, has synergistic effect with some mixed pesticide.
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 iprobenfos.
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 iprobenfos, and wherein pyraclostrobin and iprobenfos 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 iprobenfos 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 iprobenfos is 2% ~ 80%.Be preferably 5% ~ 50%, most preferably 8% ~ 40%.
Described bactericidal composition, wherein take pyraclostrobin and iprobenfos 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, rice blast, rust, powdery mildew, scab, downy mildew, epidemic disease, anthracnose, brown spot, damping off, gray mold in preparation control.
Beneficial effect of the present invention:
1, the present invention's pyraclostrobin used is methoxy acrylate bactericide, and iprobenfos is organophosphorus fungicide, is mutually mixed and can produce conflict, can Synergistic, reduce dosage, and 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, capsicum, banana, mango, pineapple, cucumber, tomato, as rice sheath blight disease, rice blast, pepper anthracnose, apple scab, scutellum rot of orange, powdery mildew of cucumber, early blight of tomato and late blight 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 iprobenfos 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 blight, rice blast, rust, powdery mildew, scab, downy mildew, epidemic disease, anthracnose, brown spot, damping off, gray mold, 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 blight, banded sclerotial blight, rust, powdery mildew, scab, downy mildew, epidemic disease, anthracnose, S.scabies, brown spot, damping off, gray molds, 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 5g, iprobenfos 10g, 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, iprobenfos 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, iprobenfos 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 iprobenfos, 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 Iprobenfos aqueous emulsion.
Embodiment 5:
Take 10g pyraclostrobin, 30g iprobenfos, 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 iprobenfos microemulsion.
Embodiment 6:
Take 1g pyraclostrobin, 5g iprobenfos, 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 Iprobenfos aqueous emulsion.
Embodiment 7:
Take 50g pyraclostrobin, 20g iprobenfos, 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 iprobenfos missible oil.
Embodiment 8:
Take 2g pyraclostrobin, 40g iprobenfos, 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 iprobenfos missible oil.
Embodiment 9:
Take 5g pyraclostrobin, 20g iprobenfos, 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 iprobenfos microemulsion.
Embodiment 10:
Take 20g pyraclostrobin, 10g iprobenfos, 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 iprobenfos missible oil.
Embodiment 11:
Take 5g pyraclostrobin, 30g iprobenfos, 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 iprobenfos missible oil.
Embodiment 12:
Take 10g pyraclostrobin, 10g iprobenfos, 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 iprobenfos suspending agent.
Embodiment 13:
Take 30g pyraclostrobin, 12g iprobenfos, 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 iprobenfos suspending agent.
Embodiment 14:
Take 2g pyraclostrobin, 5g iprobenfos, 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 iprobenfos water dispersible granules that above raw material is made to main active ingredient weight percentage by water-dispersible grain agent method.
Embodiment 15:
Take 4g pyraclostrobin, 13g iprobenfos, 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 iprobenfos water dispersible granules that above raw material is made to main active ingredient weight percentage by water-dispersible grain agent method.
Embodiment 16:
Take 70g pyraclostrobin, 2g iprobenfos, 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 iprobenfos suspending agent.
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+iprobenfos to rice blast
| Medicament | Virulence regression equation | EC 50（mg/L） | Co-toxicity coefficient |
| 24% pyraclostrobin EC | Y=?2.1617X+?3.8655 | 3.3484 | — |
| 40% iprobenfos EC | Y=?2.9287X+?2.5534 | 6.8454 | — |
| Embodiment 1 | Y=?2.9405X+?3.4931 | 3.2544 | 156 |
| Embodiment 2 | Y=?2.8671X+?3.6306 | 3.0035 | 189 |
| Embodiment 3 | Y=?3.9239X+?2.7777 | 3.6842 | 165 |
Field control effectiveness test:
The pesticidal preparations control rice blast 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 commercially available agricultural chemicals 40% iprobenfos EC(missible oil) and 24% pyraclostrobin EC 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 Rice Blast.
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 iprobenfos 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 iprobenfos, and wherein the weight ratio of pyraclostrobin and iprobenfos is 1 ~ 70:1 ~ 50.
2. bactericidal composition according to claim 1, the weight ratio that it is characterized in that pyraclostrobin and iprobenfos is 5 ~ 50:10 ~ 50.
3. bactericidal composition according to claim 2, is characterized in that described pyraclostrobin and the weight ratio of iprobenfos 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 iprobenfos 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 iprobenfos 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 iprobenfos is 8% ~ 40%.
7. bactericidal composition according to claim 1, is characterized in that take that pyraclostrobin and iprobenfos are mixed with any one formulation allowing on agricultural chemicals as main active ingredient and insecticides adjuvant, excipients.
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, rice blast, rust, powdery mildew, scab, downy mildew, epidemic disease, anthracnose, brown spot, damping off, gray mold in preparation control.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102308823A (en) * | 2011-03-17 | 2012-01-11 | 陕西汤普森生物科技有限公司 | Bactericide composition containing pyraclostrobin |
| WO2012077077A1 (en) * | 2010-12-08 | 2012-06-14 | Basf Se | Fungicidal mixtures |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012077077A1 (en) * | 2010-12-08 | 2012-06-14 | Basf Se | Fungicidal mixtures |
| CN102308823A (en) * | 2011-03-17 | 2012-01-11 | 陕西汤普森生物科技有限公司 | Bactericide composition containing pyraclostrobin |
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Application publication date: 20140212 |