CN103704217A - Antibacterial composition - Google Patents
Antibacterial composition Download PDFInfo
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- CN103704217A CN103704217A CN201210389219.6A CN201210389219A CN103704217A CN 103704217 A CN103704217 A CN 103704217A CN 201210389219 A CN201210389219 A CN 201210389219A CN 103704217 A CN103704217 A CN 103704217A
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- pyrrole metsulfovax
- phonetic phenol
- bactericidal composition
- powdery mildew
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Abstract
The invention relates to an antibacterial composition. Active ingredients of the antibacterial composition are penthiopyrad (A) and ethellorimol (B), and mass ratio of (A) to (B) ranges from 50:1 to 1:50. Obvious synergistic effect is obtained by combining (A) with (B); and the antibacterial composition is used for powdery mildew control of crops such as fruit trees, flowers, cotton, wheat, and vegetables.
Description
Technical field
The present invention relates to a kind of bactericidal composition, especially a kind of combination sterilization composition that contains pyrrole metsulfovax.
Background technology
Powdery mildew is the very important disease of a class on crops, often causes the heavy losses of crops.According to the literature, due to single drug and other unscientific application method, caused powdery mildew to produce resistance to common pesticides, the field control effect of medicament declines to a great extent.After resistance produces, the increase of formulation rate and spraying times causes again peasant burden to increase the weight of and increasing environmental pollution.Efficiently, low toxicity, environmental protection, without novel germicide and the composition thereof of cross resistance, be one of way of head it off.
Pyrrole metsulfovax, English common name Penthiopyrad, chemical name: (RS)-N-[2-(1,3-dimethylbutyl)-3-thiophene phenyl]-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxamide, being a kind of pyrazole amide series bactericidal agent of Mitsui KCC exploitation, is succinate dehydrogenase inhibitors.Pyrrole metsulfovax is the new and effective medicament of control crop powdery mildew, but separately use cost is high and have a risk that produces resistance.
In view of this, the synergistic composition that exploitation contains active ingredient pyrrole metsulfovax is prevented and treated powdery mildew and is had reasonability and feasibility.
Summary of the invention
The object of the invention is to: provide and use in a kind of applicable agricultural, powdery mildew had to safety, the efficient bactericidal composite of outstanding control efficiency.
For solving the problems of the technologies described above, inventor screens by a large amount of biologicall tests, and unexpected discovery pyrrole metsulfovax and the phonetic phenol of second are composite with certain proportion, and powdery mildew is had significant synergies.
On the basis of above-mentioned discovery, through composition is carried out to symphyogenetic quantitative analysis, formed technical scheme of the present invention, take pyrrole metsulfovax as a kind of active ingredient (A), the phonetic phenol of the second of take be another active ingredient (B), (A) be 50 with mass ratio (B): 1-1: 50, ratio is 20 preferably: 1-1: 20.
The phonetic phenol of second, English name ethirimol, is adenosine deaminase inhibitors, is systemic fungicide, has protection and therapeutic action.Can be absorbed rapidly by plant roots, stem, leaf, and in plant corpus, run to each position, resistance of rainwater washing against, effective to powdery mildew.The phonetic phenol of pyrrole metsulfovax and second is without cross resistance.
The present composition can be prepared into by known method the formulation that is applicable to agricultural use, comprises wetting powder, water dispersible granules, suspending agent, missible oil, microemulsion, aqueous emulsion, and in preparation, the total content of active ingredient is 5%-80%.
The adjuvant using in composition of the present invention comprises that dispersant, wetting agent, antifreezing agent etc. and other are of value to the known substance of active ingredient stable and drug effect performance in storing and using, all various compositions conventional in pesticidal preparations or that allow to use, be not particularly limited, concrete composition and consumption require to determine by simple experiment according to formula.
Composition described in the invention can finished product preparation form provide, and in composition, each material mixes, and the composition of composition also can provide with single dose form, before use, directly in bucket or tank, directly mixes, and is then diluted to required concentration.
Bactericidal composition of the present invention is mainly used in the disease of the crops such as fruit tree, flowers, cotton, wheat, vegetables, especially fungal disease control.
Compared with prior art, the beneficial effect that the present invention produces is: (1) is compared with single dose, and this bactericidal composition is obvious to disease synergistic effect, has improved control efficiency; (2) because drug effect improves, field dosage significantly reduces, and has reduced residue of pesticide and environmental pollution, produces and use cost decline; (3) in bactericidal composition, the mechanism of action of active ingredient is different, has reduced the single selection pressure to germ, is conducive to avoid disease resistance to produce and delay the generation speed of disease drug resistance.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, the present invention describes with following specific embodiment, but the present invention is limited to absolutely not these examples.
The combination of different pesticide active ingredient being carried out composite, is a kind of effectively and efficiently mode that solves at present some problems in agricultural chemicals single dose application process.Different pesticide active ingredients shows three kinds of type of action after mixing conventionally, and summation action, synergistic effect and antagonism, act on but which kind of is specially, unpredictable, only has by lot of experiments and just can know.Compound synergic is well filled a prescription, and can improve actual control efficiency, reduces the usage amount of agricultural chemicals, contributes to the generation of delaying drug resistance, is one of important means of resistance management.
It is active ingredient that the present composition be take pyrrole metsulfovax (A) and the phonetic phenol of second (B), between them, combination has obvious synergistic function to powdery mildew, and be not only the simple addition of two kinds of pharmacy effects, specifically with following biologicall test example, be illustrated.
Biologicall test example: the composite toxicity test to powdery mildew of cucumber of the phonetic phenol of pyrrole metsulfovax and second
Subjects: powdery mildew of cucumber germ (Erysiphe cichoracearum)
This test adopts pot-culture method.Sowing sense powdery mildew of cucumber kind, is potted plantly cultured to 2-4 leaf periods, numbers standby.With the pure water that is added with a small amount of surface reactive material, draw and cover with the fresh spore on Powdery Mildew cucumber leaves, making spore concentration is 1x10
5individual/mL spore suspension is standby.On the basis of preliminary experiment, active according to medicament, 5-7 series mass concentration is set.Liquid is evenly sprayed in blade face to all wetting, treat that liquid natural air drying is standby.Every processing 3 basins, repeat for 4 times, and only establish the processing that does not contain active ingredient containing solvent and surfactant and do not make blank.24h after medicine, inoculation powdery mildew spore.In greenhouse, cultivate after 7d, add up the lesion area on every strain cucumber seedling blade, investigation prevention effect, calculates control efficiency with disease index.
Grade scale
0 grade: anosis;
1 grade: sorus area accounts for below 5% of one-piece blade area;
3 grades: sorus area accounts for the 6%-10% of one-piece blade area;
5 grades: sorus area accounts for the 11%-20% of one-piece blade area;
7 grades: sorus area accounts for the 21%-50% of one-piece blade area;
9 grades: sorus area accounts for the more than 50% of one-piece blade area.
Drug effect computational methods:
Control efficiency is converted into probability value (y), and liquor strength (μ g/ml) converts logarithm value (x) to, with method of least squares, calculates concentration EC in virulence equation and inhibition
50, according to toxicity index and the co-toxicity coefficient (CTC) of the abundant method calculating of Sun Yun medicament.
Actual measurement toxicity index (ATI)=(standard medicament EC
50/ reagent agent EC
50) * 100
The percentage composition of B in percentage composition+B medicament toxicity index * mixture of A in theoretical toxicity index (TTI)=A medicament toxicity index * mixture
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] * 100
When CTC≤80, composition performance is for antagonism, and as 80 < CTC < 120, composition performance is for summation action, and when CTC >=120, composition performance is synergistic effect.
Toxicity test result referring to table 1 to table 2
The pot experiment measurement result of the serial proportioning of table 1 pyrrole metsulfovax and the phonetic phenol of second to powdery mildew of cucumber
| Process | EC 50(μg/mL) | ATI | TTI | Co-toxicity coefficient CTC |
| Pyrrole metsulfovax | 16.86 | 100.0 | / | / |
| The phonetic phenol of second | 17.35 | 97.2 | / | / |
| Pyrrole metsulfovax 50: the phonetic phenol 1 of second | 11.32 | 148.9 | 99.9 | 149.0 |
| Pyrrole metsulfovax 20: the phonetic phenol 1 of second | 8.45 | 199.5 | 99.9 | 199.8 |
| Pyrrole metsulfovax 10: the phonetic phenol 1 of second | 7.72 | 218.4 | 99.7 | 219.0 |
| Pyrrole metsulfovax 5: the phonetic phenol 1 of second | 7.05 | 239.1 | 99.5 | 240.3 |
| Pyrrole metsulfovax 1: the phonetic phenol 1 of second | 6.01 | 280.5 | 98.6 | 284.6 |
| Pyrrole metsulfovax 1: the phonetic phenol 5 of second | 7.44 | 226.6 | 97.6 | 232.1 |
| Pyrrole metsulfovax 1: the phonetic phenol 10 of second | 8.01 | 210.5 | 97.4 | 216.0 |
| Pyrrole metsulfovax 1: the phonetic phenol 20 of second | 8.75 | 192.7 | 97.3 | 198.0 |
| Pyrrole metsulfovax 1: the phonetic phenol 50 of second | 11.81 | 142.8 | 97.2 | 146.8 |
Result of the test shows, the composite powdery mildew of cucumber of preventing and treating of the phonetic phenol of pyrrole metsulfovax and second, and proportioning is 50: 1-1: in the time of between 50, co-toxicity coefficient all, more than 146.8, has synergistic effect; Proportioning is 20: 1-1: in the time of between 20, co-toxicity coefficient is all higher than 198.0, and synergistic effect is more obvious.
Bactericidal composition of the present invention can be prepared into by known method wetting powder, suspending agent, water dispersible granules, missible oil, aqueous emulsion, the microemulsion that is applicable to agricultural use.With specific embodiment, describe below, in formula, percentage is mass percent.In present specification, active component refers to pyrrole metsulfovax and the phonetic phenol of second, below repeats no more.
One, missible oil processing and application example
Active component and other adjuvant are added in mixing kettle successively in the ratio of formula, stir, make missible oil.
The phonetic phenol missible oil of embodiment 1:3% pyrrole metsulfovax second
Pyrrole metsulfovax 1%, the phonetic phenol 2% of second, 1-METHYLPYRROLIDONE 10%, agriculture breast 1601#5%, agriculture breast 500#5%, dimethylbenzene complements to 100%.
This embodiment is applied to prevent and treat powdery mildew of strawberry.The phonetic phenol missible oil of 3% pyrrole metsulfovax second is sprayed by 250 times of (pyrrole metsulfovax valid density is 40 μ g/ml, and the phonetic phenol valid density of second is 80 μ g/ml) thin ups, and after medicine, the control efficiency of 7 days and 15 days is respectively 92.8%, 90.2%.20% pyrrole metsulfovax suspending agent by 1000 times (pyrrole metsulfovax valid density is 200 μ g/ml) and 25% ethirimol water dispersible granules by 2000 times (valid density is 125 μ g/ml), in kind use, after medicine, the preventive effect of 7 days and 15 days is respectively 83.1%, 81.9% and 78.4%, 76.1%.The composite rear synergistic effect of the phonetic phenol of pyrrole metsulfovax and second is obvious, to the preventive effect of powdery mildew of strawberry significantly better than single dose.
Two, microemulsion processing and application example
Active component, solvent, cosolvent, emulsifier are added together, make to be dissolved into even oil phase; Water-soluble component and water mixing are made to water; Under high-speed stirred, oil phase is mixed with water, make microemulsion.
The phonetic phenol microemulsion of embodiment 2:3% pyrrole metsulfovax second
Pyrrole metsulfovax 0.5%, the phonetic phenol 2.5% of second, N-crassitude 10%, isopropyl alcohol 10%, agriculture breast 500#5%, agriculture breast 1601# 5%, water complements to 100%.
This embodiment is applied to prevent and treat grape powdery mildew.The phonetic phenol microemulsion of 3% pyrrole metsulfovax second is sprayed by 300 times of (pyrrole metsulfovax valid density is 16.7 μ g/ml, and the phonetic phenol valid density of second is 83.3 μ g/ml) thin ups, and after medicine, the control efficiency of 7 days and 15 days is respectively 85.3%, 84.3%.10% pyrrole metsulfovax suspending agent by 2000 times (valid density is 50 μ g/ml) and the phonetic phenol wetting powder of 24% second by 2000 times (valid density is 120 μ g/ml), in kind use, after medicine, the preventive effect of 7 days and 15 days is respectively 73.9%, 71.4% and 72.4%, 70.2%.The composite rear synergistic effect of the phonetic phenol of pyrrole metsulfovax and second is obvious, to the preventive effect of grape powdery mildew significantly better than single dose.
Three, aqueous emulsion processing and application example
Active component, solvent, emulsifier are added together, make to be dissolved into even oil phase; Oil phase is added to the water, under high-speed stirred, oil phase is mixed with water, make aqueous emulsion.
Embodiment 3:10.5% pyrrole metsulfovax ethirimol emulsion in water
Pyrrole metsulfovax 10%, the phonetic phenol 0.5% of second, 1-METHYLPYRROLIDONE 10%, calcium dodecyl benzene sulfonate 5%, agriculture breast 600# 5%, water complements to 100%.
This embodiment is applied to eggplant powdery mildew.10.5% pyrrole metsulfovax ethirimol emulsion in water is sprayed by 800 times of (pyrrole metsulfovax valid density is 125 μ g/ml, and the phonetic phenol valid density of second is 6.25 μ g/ml) thin ups, and after medicine, the control efficiency of 7 days and 15 days is respectively 93.6%, 90.3%.20% pyrrole metsulfovax suspending agent by 1000 times (valid density is 200 μ g/ml) and the phonetic phenol suspending agent of 25% second by 1000 times (valid density is 200 μ g/ml), in kind use, after medicine, the preventive effect of 7 days and 15 days is respectively 75.3%, 72.4% and 84.3%, 82.5%.The composite rear synergistic effect of the phonetic phenol of pyrrole metsulfovax and second is obvious, to the preventive effect of eggplant powdery mildew significantly better than single dose.
Four, suspending agent processing and application example
Each components such as active component, various auxiliary agent and water are mixed in the ratio of formula, after grinding and/or high speed shear, obtain suspending agent.
The phonetic phenol suspending agent of embodiment 4:30% pyrrole metsulfovax second
Pyrrole metsulfovax 25%, the phonetic phenol 5% of second, methyl naphthalene sulfonate formaldehyde condensate 10%, Magnesiumaluminumsilicate 1%, white carbon 1%, ethylene glycol 4%, water complements to 100%.
This embodiment is applied to prevent and treat powdery mildew of cucumber.The phonetic phenol suspending agent of 30% pyrrole metsulfovax second is sprayed by 1500 times of (pyrrole metsulfovax valid density is 166.7 μ g/ml, and the phonetic phenol valid density of second is 33.3 μ g/ml) thin ups, and after medicine, the control efficiency of 7 days and 15 days is respectively 92.5%, 90.2%.20% pyrrole metsulfovax suspending agent by 1000 times (valid density is 200 μ g/ml) and the phonetic phenol suspending agent of 50% second by 2500 times (valid density is 200 μ g/ml), in kind use, after medicine, the preventive effect of 7 days and 15 days is respectively 84.9%, 92.5% and 80.4%, 78.6%.The composite rear synergistic effect of the phonetic phenol of pyrrole metsulfovax and second is obvious, to the preventive effect of powdery mildew of cucumber significantly better than single dose.
The phonetic phenol suspending agent of embodiment 5:21% pyrrole metsulfovax second
Pyrrole metsulfovax 1%, the phonetic phenol 20% of second, methyl naphthalene sulfonate formaldehyde condensate 10%, xanthans 1%, bentonite 1%, glycerine 4%, water complements to 100%.
This embodiment is applied to biocontrol of mango powdery mildew.The phonetic phenol suspending agent of 21% pyrrole metsulfovax second is sprayed by 1000 times of (pyrrole metsulfovax valid density is 10 μ g/ml, and the phonetic phenol valid density of second is 200 μ g/ml) thin ups, and after medicine, the control efficiency of 7 days and 15 days is respectively 94.3%, 92.5%.10% pyrrole metsulfovax suspending agent by 1000 times (valid density is 100 μ g/ml) and the phonetic phenol suspending agent of 25% second by 1000 times (valid density is 250 μ g/ml), in kind use, after medicine, the preventive effect of 7 days and 15 days is respectively 76.5%, 74.2% and 83.4%, 81.6%.The composite rear synergistic effect of the phonetic phenol of pyrrole metsulfovax and second is obvious, to the preventive effect of mango powdery mildew significantly better than single dose.
The phonetic phenol suspending agent of embodiment 6:25.5% pyrrole metsulfovax second
Pyrrole metsulfovax 0.5%, the phonetic phenol 25% of second, methyl naphthalene sulfonate formaldehyde condensate 10%, xanthans 1%, bentonite 1%, glycerine 4%, water complements to 100%.
This embodiment is applied to prevent and treat balsam pear powdery mildew.The phonetic phenol suspending agent of 25.5% pyrrole metsulfovax second is sprayed by 2000 times of (pyrrole metsulfovax valid density is 2.5 μ g/ml, and the phonetic phenol valid density of second is 125 μ g/ml) thin ups, and after medicine, the control efficiency of 7 days and 15 days is respectively 89.3%, 86.5%.20% pyrrole metsulfovax wetting powder by 1000 times (valid density is 200 μ g/ml) and the phonetic phenol suspending agent of 20% second by 1000 times (valid density is 200 μ g/ml), in kind use, after medicine, the preventive effect of 7 days and 15 days is respectively 82.5%, 80.2% and 78.4%, 76.6%.The composite rear synergistic effect of the phonetic phenol of pyrrole metsulfovax and second is obvious, to the preventive effect of balsam pear powdery mildew significantly better than single dose.
Five, wetting powder processing and application example
Active component, various auxiliary agent and filler etc. are fully mixed in the ratio of formula, after ultra-fine pulverizer disintegrating, obtain wetting powder.
The phonetic phenol wetting powder of embodiment 7:30.6% pyrrole metsulfovax second
Pyrrole metsulfovax 30%, the phonetic phenol 0.6% of second, lauryl sodium sulfate 2%, sodium lignin sulfonate 5%, naphthalene sulfonate 3%, kaolin complements to 100%.
This embodiment is applied to wheat powdery mildew.The phonetic phenol of 30.6% pyrrole metsulfovax second is sprayed by 2000 times of (pyrrole metsulfovax valid density is 150 μ g/ml, and the phonetic phenol valid density of second is 3 μ g/ml) thin ups, and after medicine, the control efficiency of 7 days and 15 days is respectively 91.1%, 89.3%.20% pyrrole metsulfovax suspending agent by 1000 times (valid density is 200 μ g/ml) and the phonetic phenol wetting powder of 24% second by 2000 times (valid density is 120 μ g/ml), in kind use, after medicine, the preventive effect of 7 days and 15 days is respectively 83.9%, 81.5% and 75.3%, 73.5%.The composite rear synergistic effect of the phonetic phenol of pyrrole metsulfovax and second is obvious, to the preventive effect of wheat powdery mildew significantly better than single dose.
Six, water dispersible granules processing and application example
Active component, various auxiliary agent and filler are mixed in the ratio of formula, through air-flow crushing, become wetting powder, then add a certain amount of water mixing extruding to make material.After drying screening, obtain water dispersible granules.
Embodiment 8:80% pyrrole metsulfovax ethirimol water dispersible granules
Pyrrole metsulfovax 40%, the phonetic phenol 40% of second, Negel 2%, sodium lignin sulfonate 1%, lauryl sodium sulfate 2%, kaolin complements to 100%.
This embodiment is applied to prevent and treat chrysanthemum powdery mildew.By 4000 times of 80% pyrrole metsulfovax ethirimol water dispersible granules (pyrrole metsulfovax valid density is 100 μ g/ml, and the phonetic phenol valid density of second is 100 μ g/ml) thin up spraying, after medicine, the control efficiency of 7 days and 15 days is respectively 95.9%, 94.7%.20% pyrrole metsulfovax water dispersible granules is by 1000 times (valid density is 200 μ g/ml), the phonetic phenol suspending agent of 20% second is by 1000 times (valid density is 200 μ g/ml), in kind use, after medicine, the preventive effect of 7 days and 15 days is respectively 85.2%, 83.3% and 83.6%, 81.4%.The composite rear synergistic effect of the phonetic phenol of pyrrole metsulfovax and second is obvious, to the preventive effect of chrysanthemum white powder significantly better than single dose.
Claims (6)
1. a bactericidal composition, is characterized in that: in described bactericidal composition, active ingredient is pyrrole metsulfovax (A) and the phonetic phenol of second (B), and its mass ratio is 50: 1-1: 50.
2. bactericidal composition according to claim 1, is characterized in that: active ingredient (A) and mass ratio (B) are 20: 1-1: 20.
3. according to bactericidal composition described in claim 1 or 2, it is characterized in that: the gross mass percentage composition of active ingredient in bactericidal composition is 3%-80%.
4. bactericidal composition according to claim 3, is characterized in that: the formulation of described bactericidal composition is missible oil, microemulsion, aqueous emulsion, wetting powder, suspending agent or water dispersible granules.
5. bactericidal composition claimed in claim 1 is for preventing and treating the application of crop powdery mildew.
6. the application of bactericidal composition according to claim 5, is characterized in that: described crop is flowers, wheat, fruit tree, cotton, vegetables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210389219.6A CN103704217A (en) | 2012-10-09 | 2012-10-09 | Antibacterial composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210389219.6A CN103704217A (en) | 2012-10-09 | 2012-10-09 | Antibacterial composition |
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| CN103704217A true CN103704217A (en) | 2014-04-09 |
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|---|---|---|---|
| CN201210389219.6A Pending CN103704217A (en) | 2012-10-09 | 2012-10-09 | Antibacterial composition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105284815A (en) * | 2015-11-18 | 2016-02-03 | 山东棉花研究中心 | Pesticide composition containing pyraflufen-ethyl and penthiopyrad |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006037634A1 (en) * | 2004-10-08 | 2006-04-13 | Syngenta Participations Ag | Fungicidal compositions |
| CN103651451A (en) * | 2012-09-19 | 2014-03-26 | 陕西美邦农药有限公司 | Pesticide composition containing penthiopyrad |
-
2012
- 2012-10-09 CN CN201210389219.6A patent/CN103704217A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006037634A1 (en) * | 2004-10-08 | 2006-04-13 | Syngenta Participations Ag | Fungicidal compositions |
| CN103651451A (en) * | 2012-09-19 | 2014-03-26 | 陕西美邦农药有限公司 | Pesticide composition containing penthiopyrad |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105284815A (en) * | 2015-11-18 | 2016-02-03 | 山东棉花研究中心 | Pesticide composition containing pyraflufen-ethyl and penthiopyrad |
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Application publication date: 20140409 |