CN103766347A - Sterilization composition containing pyraoxystrobin and boscalid - Google Patents
Sterilization composition containing pyraoxystrobin and boscalid Download PDFInfo
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- CN103766347A CN103766347A CN201210400748.1A CN201210400748A CN103766347A CN 103766347 A CN103766347 A CN 103766347A CN 201210400748 A CN201210400748 A CN 201210400748A CN 103766347 A CN103766347 A CN 103766347A
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- boscalid
- azoles bacterium
- bacterium ester
- bactericidal composition
- pyraoxystrobin
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Abstract
The present invention relates to a sterilization composition containing pyraoxystrobin and boscalid, wherein the effective component is formed by compounding pyraoxystrobin and boscalid, a mass ratio of the pyraoxystrobin to the boscalid is 1-80:80-1, the total mass of the effective components such as the pyraoxystrobin and the boscalid is 1-80% of the total mass of the whole preparation, and the balance is a pesticide acceptable auxiliary component. The sterilization composition can be made into pesticide dosage forms such as emulsifiable concentrate, a suspension, wettable powder, water dispersible granules, water emulsion and micro-emulsion, and is mainly used for preventions and controls of downy mildew, late blight, anthracnose, powdery mildew, botrytis cinerea, various rot diseases, brown rot, root rot and other crop diseases.
Description
Technical field
The present invention relates to agriculture chemical compounding technical field, be specifically related to a kind of bactericidal composition that contains azoles bacterium ester and Boscalid.
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.
Boscalid is the Novel tobacco acid amide fungicides of being developed by BASF Aktiengesellschaft, be mainly used in preventing and treating powdery mildew, gray mold, various rot, brown rot and root rot etc., Boscalid belongs to succinic acid ubiquinone reductase inhibitor in mitochondrial respiratory chain, the sprouting of spore is had to very strong inhibition ability, and with other bactericide without cross resistance.The chloro-N-of Boscalid chemical name: 2-(4 '-chlorodiphenyl-2-yl) vitamin PP, 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 problem such as residual, environmental pollution and resistance to pesticide resistance fungi development of medicament.Reasonably the composite or mixture of chemical bactericide has expansion fungicidal spectrum, improve control efficiency, extend the optimum period for applying fertilizer, reduce dosage, reduce poisoning, reduce residual, delay the positive feature such as Antifungal resistance and 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, composite and the mixture of low toxicity, low-residual has small investment, the lead time is short and be subject to domestic and international attention, and numerous and confused increasing develops dynamics.We filter out azoles bacterium ester and Boscalid and carry out compositely on the basis of lab screening and field trial, have obvious synergistic effect.And there is no at present people about the composite bactericidal composition of azoles bacterium ester and Boscalid and application 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.Be mainly used in preventing and treating the crop diseases such as downy mildew, late blight, anthracnose, powdery mildew, gray mold, various rot, brown rot and root rot.
Technical scheme of the present invention realizes by following measures:
A bactericidal composition that contains azoles bacterium ester and Boscalid, active ingredient azoles bacterium ester and two yuan of the Boscalids 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 Boscalid is 1～80: 80～1, described bactericidal composition of the present invention is through toxicity test experimental verification, the mass ratio of azoles bacterium ester and Boscalid 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 Boscalid 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:
1～80 part of azoles bacterium ester
1～80 part of Boscalid
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 first active ingredient azoles bacterium ester and Boscalid to be added in solvent to 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:
1～80 part of azoles bacterium ester
1～80 part of Boscalid
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, mix through high speed shear, add active ingredient azoles bacterium ester and Boscalid, abrading-ball 2～3 hours in ball crusher, 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:
1～80 part of azoles bacterium ester
1～80 part of Boscalid
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 Boscalid 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:
1～80 part of azoles bacterium ester
1～80 part of Boscalid
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 Boscalid and dispersant, wetting agent, disintegrant and filler, pulverize with micro jet, through mediating, then add and in fluidized bed prilling dryer, carry out after granulation, dry, screening, through 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:
1～80 part of azoles bacterium ester
1～80 part of Boscalid
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 Boscalid, 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 of composition.
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, Nekal BX, moistening bleeding agent F, alkylbenzenesulfonate polyoxyethylene triphen 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, the one 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.
Bactericidal composition of the present invention, take azoles bacterium ester and Boscalid as the composite bactericide of active ingredient has 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.Be mainly used in preventing and treating the crop diseases such as downy mildew, late blight, anthracnose, powdery mildew, gray mold, various rot, brown rot and root rot.This invention can significantly make up agricultural chemicals azoles bacterium ester and the deficiency of Boscalid aspect lasting effect, accomplishes that quick-acting and lasting effect take into account, and residual low, easily decomposes environmental protection more.
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 Boscalid.
1.1 reagent agent
The former medicine of 95.5% azoles bacterium ester, the former medicine of 96% Boscalid, above-mentioned former medicine provides by research and development centre of Hailir Pharmaceutical Group Co., Ltd..
1.2 test targets
Never executed azoles bacterium ester and Boscalid from Shouguang, Shandong and cucumber of the same type gathers and separates potted plantly, for examination 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 Boscalid is respectively 16:30; 20:26; 24:22; 28:18; 32:14.
1.3.2 chemicals treatment
By the former medicine of 95.5% azoles bacterium ester, the former medicinal acetone of 96% Boscalid 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.When 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, respectively single dose azoles bacterium ester and Boscalid are carried out to toxicity test in order to upper method, the EC of the two
50respectively 4.47mg/l and 4.14mg/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
Carry out the toxicity test of mixture according to mixed ratio by single dose toxicity test method.
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.
Take the logarithm value of drug concentration (mg/L) as independent variable x, take the probability value of corrected mortality as dependent variable y, set up respectively virulence regression equation formula, adopt DPS software to calculate the LC of single dose and each proportioning mixture
50calculate co-toxicity coefficient (CTC) according to the abundant method of Sun Yun.Co-toxicity coefficient CTC, computing formula is as follows: (take azoles bacterium ester as standard medicament, its toxicity index is 100):
The LC of toxicity index (TI)=azoles bacterium ester of Boscalid
50the LC of/Boscalid
50× 100
The LC of true toxicity index (ATI)=azoles bacterium ester of M
50the LC of/M
50× 100
TI × P Boscalid of TI × P azoles bacterium ester+Boscalid of theoretical toxicity index (TTI)=azoles bacterium ester of M
TTI × 100 of the ATI/M of co-toxicity coefficient (CTC)=M of M
In formula:
M is the mixture of azoles bacterium ester and the different proportionings of Boscalid
P azoles bacterium ester is azoles bacterium ester shared ratio in mixture
P Boscalid is Boscalid shared ratio in mixture
2.1 toxicity test results
Table 1 azoles bacterium ester and the toxicity test of Boscalid to cucumber downy mildew
As can be seen from the table, in different proportionings, be 16:30 in active ingredient ratio; 20:26; 24:22; 28:18; When 32:14 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 Boscalid is 24:22 is the most obvious, and co-toxicity coefficient is 164.35.Suggestion is carried out further field control effectiveness test to suitable proportion 24:22 left and right mixture preparation, to evaluate its field practical application effect.
3 field trial control cucumber downy mildews, the experimental result of gray mold
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, record occurring degree by staging, 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 effect (table 2) of processing control cucumber downy mildew
The each effect of processing control cucumber downy mildew of table 2
The Mixed Pharmacy of different proportion as can be seen from Table 2, tests by different consumptions, 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 91.32,92.27, and 93.64.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.
4.1 field trial control gray molds of cucumber
4.1.1 test method
Test is on Shandong Pingdu City cucumber ground, and 4 points of every community investigation, investigate 2 strains at every, record occurring degree by staging, 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;
4.1.2 control time and number of times
Test is investigated 4 times altogether, and radix investigation before medicine is investigated after 3 days, 7 days and medicine after medicine for 15 days.
4.1.3 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
4.1.4 poisoning investigation method
After dispenser, whether 7d range estimation medicament has poisoning to crop continuously.
4.1.5 result of the test and analysis
Each effect (table 3) of processing control gray mold of cucumber
The each effect of processing control gray mold of cucumber of table 3
As can be seen from Table 3, the effect of 50% azoles bacterium ester Boscalid WP (20:25) control gray mold of cucumber is very remarkable.The effect of complex preparation is significantly higher than single dose, its instant effect, and the lasting period is also better, is the desirable medicament of preventing and treating gray mold, and to cucumber safety, can effectively delays the drug-fast generation of germ.
In sum, the Bactericidal composite that the present invention contains azoles bacterium ester and Boscalid, cucumber downy mildew and gray mold of cucumber 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, so this compounded combination tool in production practices is of great significance.
Claims (5)
1. a bactericidal composition that contains azoles bacterium ester and Boscalid, is characterized in that: the active ingredient of this bactericidal composition is that azoles bacterium ester and two yuan of Boscalids are composite, and wherein the mass ratio of active ingredient azoles bacterium ester and Boscalid is 1～80: 80～1.
2. bactericidal composition according to claim 1, is characterized in that: the quality optimization ratio of azoles bacterium ester and Boscalid is 1～40: 40～1.
3. bactericidal composition according to claim 1, is characterized in that: azoles bacterium ester and Boscalid account for 1%～80% of the whole quality of the pharmaceutical preparations.
4. bactericidal composition according to claim 3, is characterized in that: azoles bacterium ester and Boscalid account for 5%～50% of the whole quality of the pharmaceutical preparations.
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 this bactericidal composition can be prepared into are missible oil, suspending agent, wetting powder, water dispersible granules, aqueous emulsion, microemulsion.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080293567A1 (en) * | 2005-11-10 | 2008-11-27 | Erich Birner | Fungicidal Mixtures Comprising Boscalid and Pyrimethanil |
| CN101911946A (en) * | 2010-08-24 | 2010-12-15 | 河北省农林科学院植物保护研究所 | Complex bactericide for mainly treating grey mould disease, early blight and powdery mildew |
| CN102106355A (en) * | 2009-12-23 | 2011-06-29 | 中国中化股份有限公司 | Antifungal composition containing pyraoxystrobin |
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2012
- 2012-10-22 CN CN201210400748.1A patent/CN103766347A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080293567A1 (en) * | 2005-11-10 | 2008-11-27 | Erich Birner | Fungicidal Mixtures Comprising Boscalid and Pyrimethanil |
| CN102106355A (en) * | 2009-12-23 | 2011-06-29 | 中国中化股份有限公司 | Antifungal composition containing pyraoxystrobin |
| CN101911946A (en) * | 2010-08-24 | 2010-12-15 | 河北省农林科学院植物保护研究所 | Complex bactericide for mainly treating grey mould disease, early blight and powdery mildew |
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Application publication date: 20140507 |