CN103081933A - Bactericidal composition containing pyraclostrobin and fluxapyroxad - Google Patents
Bactericidal composition containing pyraclostrobin and fluxapyroxad Download PDFInfo
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- CN103081933A CN103081933A CN2012105735842A CN201210573584A CN103081933A CN 103081933 A CN103081933 A CN 103081933A CN 2012105735842 A CN2012105735842 A CN 2012105735842A CN 201210573584 A CN201210573584 A CN 201210573584A CN 103081933 A CN103081933 A CN 103081933A
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- pyraclostrobin
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Abstract
The invention relates to a bactericidal composition containing pyraclostrobin and fluxapyroxad. The bactericidal composition comprises the effective components of the pyraclostrobin and the fluxapyroxad in a compounding manner, wherein the mass ratio of the pyraclostrobin to the fluxapyroxad is (5-35): (35-5), the total mass of the pyraclostrobin and the fluxapyroxad as the effective components in a preparation takes up to 1-80% of the total mass of the entire preparation, and the rest is allowed and accepted auxiliary components in a pesticide. The bactericidal composition disclosed by the invention can be used for preparing pesticide formulations such as emulsifiable concentrate, a suspending agent, wettable powder, a water dispersible granule, an emulsion in water and a micro-emulsion. The bactericidal composition containing the pyraclostrobin and the fluxapyroxad is mainly used for preventing and treating powdery mildew and downy mildew of cucumbers, macrophoma musae, black sigatoka, grape powdery mildew, tomato botrytis cinerea and colletotrichum gloeosporioides penz.
Description
Technical field
The present invention relates to the agriculture chemical compounding technical field, be specifically related to a kind of bactericidal composition that contains pyraclostrobin and fluorine azoles bacterium acid amides.
Background technology
Pyraclostrobin (pyraclostrobin) is the bactericide of BASF AG's latest model methoxy acrylic.Pyraclostrobin is the New-type wide-spectrum bactericide.The mechanism of action: be the mitochondrial respiratory inhibitor. namely by stoping electronics to shift in cytochrome b cl is synthetic.Have protection, treatment, blade infiltration conduction.Pyraclostrobin missible oil shows that through the field control effectiveness test result powdery mildew of cucumber, downy mildew and banana freckle, leaf spot are had control efficiency preferably.Chemical name: N-f2 one " 1 one (4 a monochloro-benzene) 1H-pyrazoles-3-yloxymethyl " benzene is foretold N one methoxy methyl carbamate.Its chemical structural formula is
Fluorine azoles bacterium acid amides belongs to methoxy acrylic bactericide, is succinate dehydrogenase inhibitors, and control is had both.The respiration of its energy Antifungi suppresses spore-germination, germ tube elongation, mycelial growth and sporulation.Its chemistry is called 3-(difluoromethyl)-1-methyl-N-(3,4,5-trifluoro [1,1-two benzene]-2-yl))-1H-pyrazoles-4-formamide is to cereal, soybean, corn, oil crop and banana, tomato, grape has potent selectivity bactericidal action, is mainly used in preventing and treating sigatoka, grape powdery mildew, graw mold of tomato, mango anthracnose etc.
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 anti-pesticide resistance fungi development.Reasonably chemical bactericide is composite or be mixed and have the 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 characteristics such as drug-fast generation and development, bactericide compounded is one of the effective method the most that addresses 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 have 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 pyraclostrobin and fluorine azoles bacterium acid amides and carry out compositely on the basis of lab screening and field trial, have obvious synergistic effect.And about the composite bactericidal composition of pyraclostrobin and fluorine azoles bacterium acid amides and use and there is no at present the people and 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 powdery mildew of cucumber, downy mildew and banana freckle, leaf spot, grape powdery mildew, graw mold of tomato, mango anthracnose.
Technical scheme of the present invention realizes by following measures:
A kind of bactericidal composition that contains pyraclostrobin and fluorine azoles bacterium acid amides, the active ingredient pyraclostrobin of this bactericidal composition and two yuan of fluorine azoles bacterium acid amides are composite, and all the other are auxiliary element.In wherein said Pesticidal combination, the mass ratio of active ingredient pyraclostrobin and fluorine azoles bacterium acid amides is 5～35: 35～5, described bactericidal composition of the present invention is through the toxicity test experimental verification, the mass ratio of pyraclostrobin and fluorine azoles bacterium acid amides is 5～35: 35～5 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 pyraclostrobin and the gross mass of fluorine azoles bacterium acid amides in preparation account for 1%～80% of the whole quality of the pharmaceutical preparations, when wherein accounting for 5%～50%, and toxicity and the residual balance preferably that reaches, 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: 1～40 part of pyraclostrobin; 1～40 part of fluorine azoles bacterium acid amides; 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 adds emulsifier, the synergist rear oily liquids that becomes transparent and homogeneous that stirs after dissolving fully in solvent again for first active ingredient pyraclostrobin and fluorine azoles bacterium carboxylic acid amide esters being added, can namely can be made into the cream preparation of the present composition.
Described bactericidal composition is suspending agent, and the mass fraction of component is: 1～40 part of pyraclostrobin; 1～40 part of fluorine azoles bacterium acid amides; 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 pyraclostrobin and fluorine azoles bacterium acid amides, abrading-ball is 2～3 hours in ball crusher, make a diameter all below 5mm, namely 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: 1～40 part of pyraclostrobin; 1～40 part of fluorine azoles bacterium acid amides; 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, the active ingredient pyraclostrobin is mixed with fluorine azoles bacterium acid amides and dispersant, wetting agent and filler, uniform stirring in stirred tank, mixing after airslide disintegrating mill, namely 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: 1～40 part of pyraclostrobin; 1～40 part of fluorine azoles bacterium acid amides; 3～10 parts of dispersants; 1～10 part of wetting agent; 1～5 part of disintegrant; The filler surplus.The concrete production stage of this water dispersible granules is: by above-mentioned formula, active ingredient pyraclostrobin and fluorine azoles bacterium acid amides and dispersant, wetting agent, disintegrant and filler are mixed, pulverize with micro jet, through mediating, then add and carry out granulation, drying, screening in the fluidized bed prilling dryer by sample analysis, namely 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: 1～40 part of pyraclostrobin; 1～40 part of fluorine azoles bacterium acid amides; 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: at first pyraclostrobin and fluorine azoles bacterium acid amides, solvent and emulsifier, cosolvent are added together, make to be dissolved into uniform oil phase; With part water, antifreeze, other the insecticides adjuvant such as antimicrobial mixes into uniform water; When the reactor high speed stirs, oil phase is added water, slowly add water until reach the 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, namely can be made into the aqueous emulsion of the present composition.
Described bactericidal composition is microemulsion, and the mass fraction of component is: 1～40 part of pyraclostrobin, 1～40 part of fluorine azoles bacterium acid amides, 10～30 parts of emulsifier, 1～8 part of antifreezing agent, 0.5～10 part of stabilizing agent, 20～50 parts of conventional solvent cosolvents.Pyraclostrobin and fluorine azoles bacterium acid amides are dissolved fully with cosolvent, then add other compositions such as emulsifier, antifreezing agent stabilizing agent, evenly mix, add at last entry, can be made into microemulsion after fully stirring.
Wherein above-described emulsifier is selected from calcium dodecyl benzene sulfonate and aliphatic acid polyethenoxy ether, the 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 the water equal solvent are arbitrarily than the mixture that forms.
Described dispersant is selected from polycarboxylate, lignosulfonates, alkylphenol polyoxyethylene methyl ether condensate sulfate, the alkylsulfonate calcium salt, the naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, polyoxyethylene carboxylate, aliphatic amine polyoxyethylene ether, one or more in the 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 the 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
10-20The saturated 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 composite bactericide of the present invention take pyraclostrobin and fluorine azoles bacterium acid amides as active ingredient has obvious synergistic effect, delays the drug-fast generation in key, and 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 powdery mildew of cucumber, downy mildew, banana freckle, leaf spot, grape powdery mildew, graw mold of tomato and mango anthracnose.
Embodiment
For making technical scheme of the present invention, purpose 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: pyraclostrobin proportioning co-toxicity experiments different from fluorine azoles bacterium acid amides.
1.1 reagent agent
The 95 former medicines of % pyraclostrobin, the 95% former medicine of fluorine azoles bacterium acid amides, above-mentioned former medicine provides by research and development department of extra large rel medicine company limited company.
1.2 for the examination target
Mango anthracnose is preserved and is provided by Qingdao Agricultural University's plant pathology chamber.
1.3 test method
First use the former medicine of acetone solution, according to the result of preliminary experiment, two appropriate former medicines are made into 7 different proportionings, with acetone, each processing is diluted to respectively 7 concentration gradients more stand-by, 7 40% pyraclostrobins are respectively 5:35 from the ratio of the different proportioning active ingredients of fluorine azoles bacterium acid amides; 10:30; 25:15; 20:20; 25:15; 30:10; 35:5.
With reference to giving birth to the accurate method NY/T1156.2-2006 of mark, adopt the pastille medium therapy: get the liquid 3ml of each single dose and mixture series concentration, add in the PDA medium of the 27ml that is cooled to 45 ℃, make the pastille culture medium flat plate of required final concentration.Then produce 6mm diameter mycelia piece from the Colletotrichum gloeosporioides Penz in Mango colony edge of cultivating 7 days, move on each serial pastille medium, mycelia faces down, and every processing repeats for 4 times.Be disposed, the constant temperature biochemical cultivation case that is placed in 28 ℃ is cultivated, and measures colony diameter after 4 days, calculates growth inhibition ratio.
The percentage that accounts for the leaf disc area according to lesion area is divided sick level
0 grade: anosis;
1 grade: the sorus area accounts for below 5% of whole leaf area;
3 grades: the sorus area accounts for below the 6%-10% of whole leaf area;
5 grades: the sorus area accounts for below the 11%-20% of whole leaf area;
7 grades: the sorus area accounts for below the 21%-50% of whole leaf area;
9 grades: the sorus area accounts for more than 50% of whole leaf area.
Mixture toxicity test and interpretation of result: carry out the toxicity test of mixture according to mixed ratio with single dose toxicity test method.
If contrast lethality＜5% is not proofreaied and correct, the contrast lethality by formula 2 is proofreaied and correct between 5%-20%, the contrast lethality〉20%, 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 the 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 pyraclostrobin as the standard medicament, its toxicity index is 100):
The LC of the toxicity index (TI) of fluorine azoles bacterium acid amides=pyraclostrobin
50The LC of/fluorine azoles bacterium acid amides
50* 100
The LC of the true toxicity index (ATI) of M=pyraclostrobin
50The LC of/M
50* 100
The TI of the TI of the theoretical toxicity index (TTI) of M=pyraclostrobin * P pyraclostrobin+fluorine azoles bacterium acid amides * P fluorine azoles bacterium acid amides
The TTI of the ATI/M of the co-toxicity coefficient of M (CTC)=M * 100
In formula:
M is pyraclostrobin and the mixture of the different proportionings of fluorine azoles bacterium acid amides
The P pyraclostrobin is pyraclostrobin shared ratio in mixture
P fluorine azoles bacterium acid amides is fluorine azoles bacterium acid amides shared ratio in mixture.
2.1 toxicity test result
Table 1 pyraclostrobin and the fluorine azoles bacterium acid amides toxicity test to mango anthracnose
As can be seen from the table, in different proportionings, be 5:35 in the active ingredient ratio; 10:30; 25:15; 20:20; 25:15; 30:10; When 35:5 dilutes respectively, all show stronger synergistic effect, its co-toxicity coefficient shows certain synergistic effect, wherein pyraclostrobin all greater than 120: the mass ratio of fluorine azoles bacterium acid amides is that the synergistic effect of 20:20 is the most obvious, and co-toxicity coefficient is 164.18.Suggestion is carried out further field control effectiveness test to suitable proportion 20:20 left and right mixture preparation, to estimate its field practical application effect.
3 field trials are prevented and treated powdery mildew of cucumber, the experimental result of mango anthracnose
3.1 field trial is prevented and treated powdery mildew of cucumber
3.1.1 test method
Test is on Shandong Pingdu City cucumber ground, and 4 points of every residential quarter investigation are investigated 2 strains at every, put down in writing occurring degree with staging, and grade scale is as follows:
0 grade: anosis;
1 grade: the sorus area accounts for below 5% of whole leaf area;
3 grades: the sorus area accounts for below the 6%-10% of whole leaf area;
5 grades: the sorus area accounts for below the 11%-20% of whole leaf area;
7 grades: the sorus area accounts for below the 21%-50% of whole leaf area;
9 grades: the sorus area accounts for more than 50% of whole leaf area.
3.1.2 control time and number of times
Test is investigated 4 times altogether, and radix investigation before medicine was investigated after 7 days, 7 days for the second time and medicine after medicine for the first time in 15 days.
3.1.3 drug effect computational methods
Sick leaf rate (%)=sick number of sheets/investigate total number of sheets * 100
Disease index=∑ (the sick numbers of sheets at different levels * relative level numerical value)/(investigating total number of sheets * 9) * 100
Control efficiency (%)=(disease index after disease index before 1-(blank district medicine * treatment region medicine)/(after blank district medicine before disease index * treatment region medicine disease index)) * 100.
3.1.4 poisoning investigation method
After dispenser, whether continuous 15d range estimation medicament has poisoning to crop.
3.1.5 result of the test and analysis
Each processes the effect of preventing and treating powdery mildew of cucumber.(table 2)
Each processes the effect of preventing and treating powdery mildew of cucumber table 2
40% pyraclostrobin and fluorine azoles bacterium acid amides are controlled successful higher than pyraclostrobin and fluorine azoles bacterium acid amides single dose with 20:20 ratio composite bactericide for powdery mildew of cucumber as shown in Table 2, and bactericidal effect increases progressively with the increase of dosage, and the bactericidal effect of 15 days still can reach 90% after medicine for the second time.According to the field range estimation, in the test dose scope, 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 is prevented and treated powdery mildew of cucumber
4.1.1 test method
Test is in the Sanya, Hainan city, and subjects is anthracnose, and trial crops is mango.
Tip phase every residential quarter random sampling investigation 3 strains, every strain by East, West, South, North, in 5 look into total number of sheets, the sick number of sheets at different levels.
Random searching 3 strains of the every residential quarter of young fruit period, East, West, South, North, middle sampling are pressed in every strain, sick fruit number.
The blade stage division:
0 grade: anosis;
1 grade: lesion area accounts for below 5% of whole blade area;
3 grades: lesion area accounts for the 6-15% of whole blade area;
5 grades: lesion area accounts for the 16-25% of whole blade area;
7 grades: lesion area accounts for the 26-50% of whole blade area;
9 grades: lesion area accounts for more than 51% of whole blade area.
The young fruit stage division:
0 grade: anosis;
1 grade: on every young fruit, needle-like brown spot is less than 5;
3 grades: on every young fruit, needle-like brown spot is 6 ~ 15;
5 grades: on every young fruit, needle-like brown spot is 16 ~ 25;
7 grades: on every young fruit, needle-like brown spot is more than 26, and spot is connected;
9 grades: whole fruit is met personally scab, has red point-like thing to occur.
4.1.2 control time and number of times
Test is investigated 4 times altogether, and radix investigation before medicine was investigated after 7 days, 7 days for the second time and medicine after medicine for the first time in 15 days.
4.1.3 drug effect computational methods
Sick leaf (really) rate (%)=sick leaf (really) count/is investigated total leaf (really) number * 100
Disease index=∑ (sick leaves at different levels (really) number * relative level numerical value)/(investigating total leaf (really) number * 9) * 100
Control efficiency (%)=(disease index after disease index before 1-(blank district medicine * treatment region medicine)/(after blank district medicine before disease index * treatment region medicine disease index)) * 100.
4.1.4 poisoning investigation method
After dispenser, whether continuous 15d range estimation medicament has poisoning to crop.
4.1.5 result of the test and analysis
Each processes the effect of biocontrol of mango anthracnose.(table 3)
The Mixed Pharmacy of different proportion, test by different consumptions as can be seen from Table 3, and after medicine, its control to mango anthracnose all is better than contrasting medicament, and bactericidal effect increases progressively with the increase of dosage.According to the field range estimation, in the test dose scope, plant growth is normal, and the poisoning phenomenon to mango does not all appear in each treatment agent, illustrates that it is safe to mango.Advise that the bactericide different from the mechanism of action mixes use to delay the drug-fast generation of germ.
In sum, the present invention contains the bactericidal composition of pyraclostrobin and azoles bacterium acid amides, rice blast and cucumber downy mildew are had good control efficiency, and it is to the target crop safety.Complex preparation has not only improved preventive effect, and has enlarged fungicidal spectrum, so this compounded combination tool in production practices is of great significance.
Claims (4)
1. bactericidal composition that contains pyraclostrobin and fluorine azoles bacterium acid amides, it is characterized in that: the active ingredient of this bactericidal composition is that pyraclostrobin and two yuan of fluorine azoles bacterium acid amides are composite, and wherein the mass ratio of active ingredient pyraclostrobin and fluorine azoles bacterium acid amides is 5～35: 35～5.
2. bactericidal composition according to claim 1, it is characterized in that: pyraclostrobin and fluorine azoles bacterium acid amides account for 1%～80% of the whole quality of the pharmaceutical preparations.
3. bactericidal composition according to claim 2, it is characterized in that: pyraclostrobin and fluorine azoles bacterium acid amides account for 5%～50% of the whole quality of the pharmaceutical preparations.
4. according to claim 1 and 2 or 3 described bactericidal compositions, it is characterized in that: the formulation of this bactericidal composition is missible oil, suspending agent, wetting powder, water dispersible granules, aqueous emulsion, microemulsion.
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| CN113163765A (en) * | 2018-12-11 | 2021-07-23 | 巴斯夫农业公司 | Method for controlling phytopathogenic fungi selected from the group consisting of erysiphe necator, monascus viticola and botrytis cinerea in grapes by means of a composition comprising chlorofluoromethrizole |
| CN113163765B (en) * | 2018-12-11 | 2023-04-25 | 巴斯夫农业公司 | Method for controlling phytopathogenic fungi in grapes by a composition comprising penoxsulam |
| CN115299449A (en) * | 2022-09-20 | 2022-11-08 | 允发化工（上海）有限公司 | Pesticide composition and application thereof |
| CN115299449B (en) * | 2022-09-20 | 2023-10-27 | 允发化工（上海）有限公司 | Pesticide composition and application thereof |
| CN117441738A (en) * | 2023-12-26 | 2024-01-26 | 山东科赛基农生物工程有限公司 | Seed treatment suspending agent containing metalaxyl-M, pyraclostrobin and fluxapyroxad and application thereof |
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