CN103719097A - Sterilization composition containing pyraoxystrobin and azoxystrobin - Google Patents
Sterilization composition containing pyraoxystrobin and azoxystrobin Download PDFInfo
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- CN103719097A CN103719097A CN201210389709.6A CN201210389709A CN103719097A CN 103719097 A CN103719097 A CN 103719097A CN 201210389709 A CN201210389709 A CN 201210389709A CN 103719097 A CN103719097 A CN 103719097A
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- fluoxastrobin
- azoles bacterium
- bacterium ester
- azoxystrobin
- pyraoxystrobin
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Abstract
The invention relates to a sterilization composition containing pyraoxystrobin and azoxystrobin, which comprises an effective component of a binary compound of pyraoxystrobin and azoxystrobin, and others of auxiliary components. The mass ratio of pyraoxystrobin and azoxystrobin in the effective component is 1-75:75-1. The total mass of the effective component of pyraoxystrobin and azoxystrobin in the preparation accounts for 1%-80% of the total mass of the whole preparation. The sterilization composition of the invention can be prepared into pesticides in dosage forms of missible oil, suspending agents, wettable powder, water dispersible granules, emulsion in water, and microemulsion. The sterilization composition of the invention has good activity on almost all fungal diseases such as powdery mildew, rust disease, glume blight, net blotch, downy mildew, rice blast and the like, and especially has excellent controlling effects on cucumber downy mildew, grape downy mildew, tomato late blight, cucumber anthracnose, and cucumber powdery mildew.
Description
Technical field
The present invention relates to agriculture chemical compounding technical field, particularly relate to a kind of bactericidal composition that contains azoles bacterium ester and Fluoxastrobin.
Background technology
The strobilurin fungicide that Zuo Junzhishi Shenyang Chemical Engineering Inst develops.Azoles bacterium ester fungicidal spectrum is wide, bactericidal activity is high, has relatively more outstanding in vitro bactericidal activity, and cucumber downy mildew, downy mildew of garpe, tomato late blight, cucumber anthracnose, powdery mildew of cucumber are had to excellent control efficiency.Azoles bacterium esterification formal name used at school is called (E)-2-(2-((3-(4-chlorphenyl)-1-methyl isophthalic acid H-pyrazoles-5-oxygen base) methyl) phenyl)-3-methoxy-methyl acrylate.
Fluoxastrobin is first commercial methoxy acrylate (Strobilurin) series bactericidal agent that Switzerland Syngenta Co.,Ltd succeeds in developing, efficiently, wide spectrum, nearly all mycota (Ascomycotina, Basidiomycotina, Mastigomycotina and Deuteromycotina) disease is all had to good activity as powdery mildew, rust, glume blight, net blotch, downy mildew, rice blast etc.Fluoxastrobin Chinese is: (E) 2-[2-[6-(2-cyano-benzene oxygen) pyrimidine-4-yl oxygen] phenyl]-3-methoxy-methyl acrylate, its chemical structural formula is
Using chemical agent is the most effectively means of controlling plant diseases.But long-term use single chemical bactericide continuously high dose, easily cause the problems such as residual, the environmental pollution of medicament and resistance to pesticide resistance fungi development.Reasonably chemical bactericide is composite or be mixed and have expansion fungicidal spectrum, improve control efficiency, extend the optimum period for applying fertilizer, reduce dosage, reduce poisoning, reduce residual, delay Antifungal resistance and the positive feature such as drug-fast generation and development, bactericide compounded is one of the effective method the most addressing the above problem.Exploitation new product bactericide price is constantly soaring, and by contrast, exploitation is efficient with research, low toxicity, low-residual composite be mixed there is small investment, the lead time is short and be subject to domestic and international attention, the numerous and confused dynamics that develops that strengthens.We filter out azoles bacterium ester and Fluoxastrobin and carry out compositely on the basis of lab screening and field trial, have obvious synergistic effect.And about the composite bactericidal composition of azoles bacterium ester and Fluoxastrobin and application, there is no at present people reported.
Summary of the invention
Based on above situation, the object of the invention is to provide a kind of new and effective pesticide sterilizing composite.Nearly all mycota disease is all had to good activity as powdery mildew, rust, glume blight, net blotch, downy mildew, rice blast etc.Especially cucumber downy mildew, downy mildew of garpe, tomato late blight, cucumber anthracnose, powdery mildew of cucumber are had to excellent control efficiency.
Technical scheme of the present invention realizes by following measures:
A bactericidal composition that contains azoles bacterium ester and Fluoxastrobin, active ingredient azoles bacterium ester and two yuan of the Fluoxastrobins of this bactericidal composition are composite, and all the other are auxiliary element.In wherein said Pesticidal combination, the mass ratio of active ingredient azoles bacterium ester and Fluoxastrobin is 1～75: 75～1, and described bactericidal composition of the present invention is through toxicity test experimental verification, and the mass ratio of azoles bacterium ester and Fluoxastrobin is 1～40: 40～1 o'clock, and synergistic effect is better.
The formulations of pesticide that described bactericidal composition of the present invention can be prepared are missible oil, suspending agent, wetting powder, water dispersible granules, aqueous emulsion, microemulsion.Wherein active ingredient azoles bacterium ester and the Fluoxastrobin gross mass in preparation accounts for 1%～80% of the whole quality of the pharmaceutical preparations, while wherein accounting for 5%-50%, and toxicity and residually reach good balance, cost is also lower.
The specific embodiments of the formulations of pesticide that bactericidal composition of the present invention is mixed with is as follows:
Described bactericidal composition is cream preparation, and the mass fraction of component is:
1～75 part of azoles bacterium ester
1～75 part of Fluoxastrobin
10～30 parts of conventional emulsifiers
20～50 parts of conventional solvents
1～5 part of conventional synergist.
The concrete production stage of this cream preparation is for first adding active ingredient azoles bacterium ester and Fluoxastrobin in solvent the oily liquids that becomes transparent and homogeneous after adding again emulsifier, synergist to stir after dissolving completely, filling, can be made into the cream preparation of the present composition.
Described bactericidal composition is suspending agent, and the mass fraction of component is:
1～75 part of azoles bacterium ester
1～75 part of Fluoxastrobin
5～20 parts of dispersants
1～5 part of antifreezing agent
0.1～2 part of thickener
0.1～0.8 part of defoamer
0～10 part of penetrating agent
0.1～5 part of pH value conditioning agent
Water surplus.
The concrete production stage of this suspending agent is for first mixing other auxiliary agents, through high speed shear, mix, add active ingredient azoles bacterium ester and Fluoxastrobin, in ball crusher, abrading-ball is 2～3 hours, make a diameter all below 5mm, can be made into the suspending agent preparation of the present composition.
Described bactericidal composition is wetting powder, and the mass fraction of component is:
1～75 part of azoles bacterium ester
1～75 part of Fluoxastrobin
3～10 parts of dispersants
1～5 part of wetting agent
Filler surplus.
The concrete production stage of this wetting powder is: by above-mentioned formula, active ingredient azoles bacterium ester is mixed with Fluoxastrobin and dispersant, wetting agent and filler, uniform stirring in stirred tank, after airslide disintegrating mill, mixing, can be made into the wetting powder of the present composition.
Described bactericidal composition is water dispersible granules, and the mass fraction of component is:
1～75 part of azoles bacterium ester
1～75 part of Fluoxastrobin
3～10 parts of dispersants
1～10 part of wetting agent
1～5 part of disintegrant
Filler surplus.
The concrete production stage of this water dispersible granules is: by above-mentioned formula, active ingredient azoles bacterium ester is mixed with Fluoxastrobin and dispersant, wetting agent, disintegrant and filler, with micro jet, pulverize, through mediating, then add and in fluidized bed prilling dryer, carry out granulation, dry, screening by sample analysis, can be made into the water dispersible granules of the present composition.
Described bactericidal composition is aqueous emulsion, and the mass fraction of component is:
1～75 part of azoles bacterium ester
1～75 part of Fluoxastrobin
3～30 parts of emulsifier
5～15 parts of solvents
2～15 parts of stabilizing agents
1～5 part of antifreezing agent
0.1～8 part of defoamer
0.2～2 part of thickener
Water surplus
The concrete production stage of this aqueous emulsion is: first azoles bacterium ester and Fluoxastrobin, solvent and emulsifier, cosolvent are added together, make to be dissolved into uniform oil phase; By part water, antifreeze, other the insecticides adjuvant such as antimicrobial mixes into uniform water; When reactor high speed stirs, oil phase is added to water, slowly add water until reach phase inversion point, open clipper and carry out high speed shear, and add remaining water, shear about half an hour, form the aqueous emulsion of oil-in-water type, can be made into the aqueous emulsion of the present composition.
Wherein above-described emulsifier is selected from calcium dodecyl benzene sulfonate and aliphatic acid polyethenoxy ether, alkylphenol polyoxyethylene sulfosuccinate, styrylphenol polyoxyethylene ether, polyoxyethylene nonylphenol ether, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy base ester, any or more than one any mixtures than forming in polyoxyethylene aliphatic alcohol ether.
Described solvent is dimethylbenzene or biodiesel, toluene, and diesel oil, methyl alcohol, ethanol, n-butanol, isopropyl alcohol, turpentine oil, solvent naphtha, dimethyl formamide, dimethyl sulfoxide (DMSO), one or more in water equal solvent are arbitrarily than the mixture forming.
Described dispersant is selected from polycarboxylate, lignosulfonates, alkylphenol polyoxyethylene methyl ether condensate sulfate, alkylsulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, polyoxyethylene carboxylate, aliphatic amine polyoxyethylene ether, one or more in fatty acid glyceride APEO.
Described wetting agent is selected from lauryl sodium sulfate, calcium dodecyl benzene sulfonate, and Nekal BX, moistening bleeding agent F, alkylbenzenesulfonate polyoxyethylene triphen is phosphenylic acid salt dimly, spaonin powder, silkworm excrement, one or more in soapberry powder.
Described disintegrant is selected from bentonite, urea, ammonium sulfate, aluminium chloride, citric acid, succinic acid, one or more in sodium bicarbonate.
Described thickener is selected from xanthans, carboxymethyl cellulose, carboxyethyl cellulose, methylcellulose, Magnesiumaluminumsilicate, in polyvinyl alcohol one or more.
Described stabilizing agent is selected from sodium citrate, a kind of in resorcinol.
Described antifreezing agent is selected from ethylene glycol, propane diols, one or more in glycerine.
Described defoamer is selected from silicone oil, silicone compound, C
10-20saturated fat acid compounds, C
8-10one or more of fatty alcohol.
Described filler is selected from kaolin, diatomite, bentonite, attapulgite, white carbon, starch, one or more in precipitated calcium carbonate.
The present invention be take the composite bactericide that azoles bacterium ester and Fluoxastrobin be active ingredient and is had obvious synergistic effect, delays the drug-fast generation in key, and has reduced to become to produce cost and use cost, can be used for the improvement of resistance disease.Mycota disease is all had to good activity as powdery mildew, rust, glume blight, net blotch, downy mildew, rice blast etc.Especially cucumber downy mildew, downy mildew of garpe, tomato late blight, cucumber anthracnose, powdery mildew of cucumber are had to excellent control efficiency.
Embodiment
For making technical scheme of the present invention, object and advantage are clearer, and the present invention describes with following specific embodiment, but the present invention is not limited to these examples.The mode that effect experiment of the present invention adopts indoor biometrics and field trial to combine, if no special instructions, the ratio of below mentioning is all ratio of quality and the number of copies.
Embodiment: azoles bacterium ester proportioning co-toxicity experiments different from Fluoxastrobin.
1.1 reagent agent
The former medicine of 95.5% azoles bacterium ester, the former medicine of 95% Fluoxastrobin, above-mentioned former medicine provides by research and development department of Qingdao Hailir Pesticides and Chemical Co., Ltd..
1.2 test targets
From Shandong Pingdu never executed azoles bacterium ester and Fluoxastrobin and cucumber of the same type potted plant gather separated.Cucumber variety: Chang Chun Mi Ci.
1.3 test method
1.3.1 medicament preparation
First use the former medicine of acetone solution, according to the result of preliminary experiment, two appropriate former medicines are made into 5 different proportionings, then it is stand-by with acetone, each processing to be diluted to respectively to 5 concentration gradients, the ratio of 5 azoles bacterium ester proportioning active ingredients different from Fluoxastrobin is respectively 9:21; 12:18; 15:15; 18:12; 21:9.
1.3.2 chemicals treatment
By the former medicine of 95.5% azoles bacterium ester, the former medicinal acetone of 95% Fluoxastrobin is solvent dilution, is made into 10000ug/ml mother liquor, under 4 ℃ of conditions, saves backup.
No. 13 residences of infection cucumber variety middle peasant are fitted in seedling-growing container, be placed in greenhouse and cultivate, plant grows to three to four leaf after dates, gathers the blade of identical leaf age, for mensuration and the cultivation of cucumber downy mildew.
Cucumber downy mildew adopts plants method at 20 ℃, under the condition of 12h alternation of light and darkness, cultivates, and within every 30 days, turns culture once.During inoculation, with the conidium on sterile water wash-out incidence of leaf, being configured to concentration is 1 * 10
6the spore suspension of individual/ml.
1.3.3 for examination strain sensitivity testing
Adopt leaf dish moisturizing method to carry out toxicity test.First the blade of collection is prepared into the leaf dish that diameter is 1.5cm, test is with the blank that is treated to of adding medicine not, after immersion finishes, leaf faces up and puts on the wetting blotting paper of same concentrations liquid, and the liquid on leaf dish is blotted, and the spore suspension 10L configuring is inoculated in to leaf dish central authorities, room temperature is placed after 5min, be placed under 20 ℃, the condition of 12h alternation of light and darkness and cultivate, after 10d, measure the onset area on leaf dish, calculate EC
50.
On the basis of preliminary experiment, in order to upper method, respectively single dose azoles bacterium ester and Fluoxastrobin are carried out to toxicity test, the EC of the two
50respectively 5.21mg/l and 6.72mg/l.
The percentage that accounts for leaf disc area according to lesion area is divided sick level
0 grade: anosis;
1 grade: sorus area accounts for below 5% of whole leaf area;
3 grades: sorus area accounts for below the 6%-10% of whole leaf area;
5 grades: sorus area accounts for below the 11%-20% of whole leaf area;
7 grades: sorus area accounts for below the 21%-50% of whole leaf area;
9 grades: sorus area accounts for the more than 50% of whole leaf area;
1.3.4 mixture toxicity test and interpretation of result
By single dose toxicity test method, according to mixed ratio, carry out the toxicity test of mixture.
If contrast lethality <5%, does not proofread and correct, contrast lethality, between 5%-20%, is proofreaied and correct by formula 2, contrast lethality >20%, and test need be reformed.
The logarithm value of drug concentration (mg/L) of take is independent variable x, and the probability value of corrected mortality of take is dependent variable y, sets up respectively virulence regression equation formula, adopts DPS software to calculate the LC of single dose and each proportioning mixture
50according to the abundant method of Sun Yun, calculate co-toxicity coefficient (CTC).Co-toxicity coefficient CTC, computing formula is as follows: (take azoles bacterium ester as standard medicament, its toxicity index is 100):
The LC of the toxicity index of Fluoxastrobin (TI)=azoles bacterium ester
50the LC of/Fluoxastrobin
50* 100
The LC of true toxicity index (ATI)=azoles bacterium ester of M
50the LC of/M
50* 100
TI * P Fluoxastrobin of TI * P azoles bacterium ester+Fluoxastrobin of theoretical toxicity index (TTI)=azoles bacterium ester of M
TTI * 100 of the ATI/M of the co-toxicity coefficient of M (CTC)=M
In formula:
M is the mixture of azoles bacterium ester and the different proportionings of Fluoxastrobin
P azoles bacterium ester is azoles bacterium ester shared ratio in mixture
P Fluoxastrobin is Fluoxastrobin shared ratio in mixture
2.1 toxicity test results
Table 1 azoles bacterium ester and the toxicity test of Fluoxastrobin to cucumber downy mildew
As can be seen from the table, in different proportionings, in active ingredient ratio, be 9:21; 12:18; 15:15; 18:12; When 21:9 dilutes respectively, all show stronger synergistic effect, its co-toxicity coefficient is all greater than 120, shows certain synergistic effect, and the synergistic effect that wherein mass ratio of azoles bacterium ester and Fluoxastrobin is 15:15 is the most obvious, and co-toxicity coefficient is 158.39.Suggestion is carried out further field control effectiveness test to suitable proportion 15:15 left and right mixture preparation, to evaluate its field practical application effect.
3 field trial control cucumber downy mildews, the experimental result of capsicum epidemic disease
3.1 field trial control cucumber downy mildews
3.1.1 test method
Test is on Shandong Pingdu City cucumber ground, and 4 points of every community investigation, investigate 2 strains at every, by staging, record occurring degree, and grade scale is as follows:
0 grade: anosis;
1 grade: sorus area accounts for below 5% of whole leaf area;
3 grades: sorus area accounts for below the 6%-10% of whole leaf area;
5 grades: sorus area accounts for below the 11%-20% of whole leaf area;
7 grades: sorus area accounts for below the 21%-50% of whole leaf area;
9 grades: sorus area accounts for the more than 50% of whole leaf area;
3.1.2 control time and number of times
Test is investigated 4 times altogether, within 15 days, investigates before medicine after radix investigation, medicine after 3 days, 7 days and medicine.
3.1.3 drug effect computational methods
The total number of sheets * 100 of sick leaf rate (%)=sick number of sheets/investigate
Disease index=∑ (the sick number of sheets * relative level numerical value at different levels)/(investigating the total number of sheets * 9) * 100
Control efficiency (%)=(disease index after the front disease index * treatment region medicine of 1-(blank district medicine)/(the front disease index of disease index * treatment region medicine after blank district medicine)) * 100
3.1.4 poisoning investigation method
After dispenser, whether 7d range estimation medicament has poisoning to crop continuously.
3.1.5 result of the test and analysis
Each processes the effect (table 2) of control cucumber downy mildew
Each processes the effect of control cucumber downy mildew table 2
The Mixed Pharmacy of different proportion, tests by different consumptions as can be seen from Table 2, and after medicine, it is all better than contrasting medicament to the control of cucumber downy mildew, and after medicine, the bactericidal effect of 15 days is respectively 91.23,92.74, and 93.68.Bactericidal effect increases progressively with the increase of dosage.According to field range estimation, within the scope of test dose, plant growth is normal, and the poisoning phenomenon to cucumber does not all appear in each treatment agent, illustrates that it is safe to cucumber.Advise that the bactericide different from the mechanism of action mixes use to delay the drug-fast generation of germ.
3.2 field trial control capsicum epidemic diseases
Test is located at pepper planting district, Hunan Province, and experimental field is piece in winter slack, and capsicum epidemic disease is over the years to be occurred seriously.Field soil is fertile, and other conditions are moderate, for examination capsicum sensitive varieties Hunan, grinds No. 15.
Kind is that every processing repeats 4 times, Gong20Ge community, every community area 30m
2, random district group is arranged.5 points of every community random searching, look into 5 strains at every, record diseased plant number, dead strain number or obvious withered plant number.
Stage division: (pressing symptom type classification) 0 grade: healthy without disease;
1 grade: overground part only leaf, fruit has scab;
3 grades: terrestrial stem, branch have brown rot spot;
5 grades: basal part of stem has brown rot spot;
7 grades: terrestrial stem, branch and basal part of stem all have brown rot spot, and part branch is withered;
9 grades: complete stool is withered.Control time and number of times
Duration of test is investigated 4 times altogether, i.e. disease index investigation before medicine, preventive effect investigation in 3 days after medicine, 7 days and preventive effect investigation in 15 days.
Drug effect computational methods
Diseased plant rate (%)=diseased plant number/investigate total strain number * 100
Disease index=∑ (diseased plant number * relative level numerical value at different levels)/(investigating total strain number * 9) * 100
Control efficiency (%)=(disease index after the front disease index * treatment region medicine of 1-(blank district medicine)/(the front disease index of disease index * treatment region medicine after blank district medicine)) * 100
Poisoning investigation method
After dispenser, whether 7d range estimation medicament has poisoning to crop continuously.
Each processes the effect (table 3) of control capsicum epidemic disease
Each processes the effect of control capsicum epidemic disease table 3
As shown in Table 3 the composite bactericide (15:15) of 30% azoles bacterium ester Fluoxastrobin for the control efficiency of capsicum epidemic disease the effect apparently higher than azoles bacterium ester and Fluoxastrobin single dose complex preparation, its instant effect, lasting period is also better, for the desirable medicament of preventing and treating epidemic disease, and to capsicum safety, can effectively delay the drug-fast generation of germ.
In sum, the Bactericidal composite that the present invention contains azoles bacterium ester and Fluoxastrobin, cucumber downy mildew and capsicum epidemic disease are had to good control efficiency, and it is to target crop safety.Complex preparation has not only improved preventive effect, and has expanded fungicidal spectrum, widens the scope of application, reduces costs, and multiple diseases is played to the double effect of controlling of a medicine, alleviates manpower and materials, improves productivity effect.So the invention of this complex preparation is of great significance social tool with popularization.
Claims (5)
1. a bactericidal composition that contains azoles bacterium ester and Fluoxastrobin, is characterized in that: the active ingredient of this bactericidal composition is azoles bacterium ester and Fluoxastrobin binary built, and all the other are auxiliary element, and wherein the mass ratio of azoles bacterium ester and Fluoxastrobin is 1～75: 75～1.
2. bactericidal composition according to claim 1, is characterized in that: the quality optimization ratio of azoles bacterium ester and Fluoxastrobin is preferably 1～40: 40～1.
3. bactericidal composition according to claim 1, is characterized in that: azoles bacterium ester and the Fluoxastrobin gross mass in preparation accounts for 1%～80% of whole preparation gross mass.
4. bactericidal composition according to claim 3, is characterized in that: azoles bacterium ester and the Fluoxastrobin gross mass in preparation accounts for 5%～50% of whole preparation gross mass.
5. according to the bactericidal composition described in claim 1 or 2 or 3 or 4, it is characterized in that: the formulations of pesticide that bactericidal composition of the present invention can be made are missible oil, suspending agent, wetting powder, water dispersible granules, aqueous emulsion, microemulsion.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108849936A (en) * | 2018-07-10 | 2018-11-23 | 江西正邦作物保护有限公司 | A kind of bactericidal composition and its application containing tetramycin and pyraoxystrobin |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005080344A1 (en) * | 2004-02-20 | 2005-09-01 | Shenyang Research Institute Of Chemical Industry | Substituted azole compounds and thereof preparation and application |
| CN101406191A (en) * | 2007-10-09 | 2009-04-15 | 中国中化集团公司 | Fungicidal compositions |
| CN101779674A (en) * | 2009-12-16 | 2010-07-21 | 陈章艳 | Sterilization composition containing tetraconazole |
-
2012
- 2012-10-16 CN CN201210389709.6A patent/CN103719097A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005080344A1 (en) * | 2004-02-20 | 2005-09-01 | Shenyang Research Institute Of Chemical Industry | Substituted azole compounds and thereof preparation and application |
| CN101406191A (en) * | 2007-10-09 | 2009-04-15 | 中国中化集团公司 | Fungicidal compositions |
| CN101779674A (en) * | 2009-12-16 | 2010-07-21 | 陈章艳 | Sterilization composition containing tetraconazole |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108849936A (en) * | 2018-07-10 | 2018-11-23 | 江西正邦作物保护有限公司 | A kind of bactericidal composition and its application containing tetramycin and pyraoxystrobin |
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Application publication date: 20140416 |