CN101700016B - Bactericidal composition used for preventing and treating powdery mildew - Google Patents
Bactericidal composition used for preventing and treating powdery mildew Download PDFInfo
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- CN101700016B CN101700016B CN 200910310640 CN200910310640A CN101700016B CN 101700016 B CN101700016 B CN 101700016B CN 200910310640 CN200910310640 CN 200910310640 CN 200910310640 A CN200910310640 A CN 200910310640A CN 101700016 B CN101700016 B CN 101700016B
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Abstract
The invention belongs to the technical field of the compounding of pesticide, and in particular relates to a bactericidal composite used for preventing and treating powdery mildew. In the bactericidal composite, azoxystrobin and pyrimidine class bactericide are compounded, wherein the weight ratio of the azoxystrobin to the pyrimidine class bactericide is 20:1-1:20. The bactericidal composite is used for preventing and treating the powdery mildew in agriculture, such as melon and cereal crops and the like, can enhance the preventing and treating effect obviously and has a better function for overcoming and delaying the drug resistance of pathogenic bacteria.
Description
Technical field
The invention belongs to the technical field of agriculture chemical compounding, be specifically related to a kind of bactericidal composition be used to preventing and treating powdery mildew, be used for preventing and treating the powdery mildew on the agriculturals such as melon, cereal crop.
Background technology
The plant pathogenic fungi powdery mildew is absolute specialization bacterial parasite, expand in the green portion of plant after infecting plant, its brood body hypergene is at the outside white powder layer that forms of plant, except absorbing plant nutrition, also affect the photosynthesis of plant, cause plant weak or dead, because the conidium of powdery mildew is propagated with air-flow, the bacterium amount is large, and variation is fast, causes the large watershed generation of disease, large-area prevention and control, a large amount of medication.In some serious places of powdery mildew harm, common bactericide such as tpn, thiophanate-methyl, use has not had any effect separately, and triazolones etc. have also caused very serious resistance, and have easily produced poisoning owing to large-area application.
For the upper powdery mildew that produces resistance of control agricultural, a kind of way is to release new and the new component of existing kind without cross resistance, and still, the development cost of new active ingredient is high, and the construction cycle is long, and forever all less than the speed of germ generation resistance.Additive method such as crop allocation adjustment, different agricultural chemicals are rotated etc., in practical operation, are difficult to really play obvious effect.
The composition of different cultivars carries out composite, is the common way of preventing and treating the resistance germ, according to practical application effect, judge certain composite be synergy, addition or antagonism.Composite effect is well filled a prescription, owing to obviously having improved actual control efficiency, reduced the usage amount of agricultural chemicals, thereby greatly delayed the drug-fast generation of germ, and be the important means of integrated control disease.
Fluoxastrobin (Azoxystrobin) is a kind of new and effective beta-methoxy acrylic ester bactericide; have protection, treat, root out, infiltration, systemic activity, destroy the synthetic and loss of life power of the energy of germ by the respiration that suppresses germ.Fluoxastrobin has the bactericidal activity of wide spectrum, the tens of kinds of diseases such as nearly all Mycophytes (Ascomycetes, Basidiomycetes, Oomycete and Fungi Imperfecti) disease such as powdery mildew, rust, scab, net blotch, downy mildew, rice blast all there is good activity, be applicable to the various crop such as cereal, vegetables, paddy rice, fruit tree and economic crops, and have good crop safety and very outstanding Environmental compatibility.Because its drug cost is high, the application of this medicine is subject to certain restrictions, and uses not extensive, cause the waste to outstanding resource, the action site of this bactericide is very single in addition, and germ can produce adaptive variation to medicament, the preventive effect of medicament is reduced even invalid and cause the drug-fast generation of germ, in follow-up use, need to strengthen dosage, increase spray medicine number of times, so that residue of pesticide improve, affect environment etc., thereby cause a series of vicious circle.The resistance of Fluoxastrobin is not yet found in the field at present, but is had the relevant report that produces resistance in Europe with veriety.
The phonetic phenol of second (Ethirimol) chemical name is 5-butyl-2-ethylamino-4-hydroxyl-6-methylpyrimidine; bupirimate (Bupirimate) chemical name 5-butyl-2-ethylamino-6-methylpyrimidine-4-base dimethylamino sulfuric ester; both all belong to the miazines bactericide; it is adenosine deaminase inhibitors; the stronger systemic activity of tool; root through plant; stem; leaf can conduct to young leaves after absorbing; all has protective effect whole vegetative period crop; but because the two long-term separately use; germ produces resistance to it; separately result of use is unsatisfactory, and causes the waste of medicine and to the pollution of environment.
At present, Fluoxastrobin and miazines bactericide composite and use and there is no the people and reported.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of bactericidal composition be used to preventing and treating powdery mildew for the problem of above-mentioned existence, said composition is the combination sterilization composition that contains Fluoxastrobin and miazines bactericide, be used for preventing and treating the powdery mildew on the agriculturals such as melon, cereal crop, can obviously improve control efficiency, and the pesticide resistance that overcomes and delay pathogen is had preferably effect.
Among the present invention, involved weight, for example the weight of Fluoxastrobin, miazines bactericide, active ingredient all refers to the weight of rolling over after hundred, i.e. the weight of active principle.
Bactericidal composition be used to preventing and treating powdery mildew of the present invention, its active ingredient comprise Fluoxastrobin and miazines bactericide, and the weight ratio of the two is Fluoxastrobin: miazines bactericide=20: 1～1: 20.
As preferably, described Fluoxastrobin and miazines bactericide weight ratio are Fluoxastrobin: miazines bactericide=5: 1～1: 5.
Wherein, described miazines bactericide is that the phonetic phenol of second is or/and bupirimate.
In the composition of the present invention, the weight percentage of its described active ingredient is 1%～80%.
The formulation of said composition comprises wetting powder, suspending agent or water dispersible granules, and described composition adds auxiliary agent and excipient, makes needed formulation according to the production technology that those skilled in the art all know.
Beneficial effect of the present invention is: with Fluoxastrobin and the bactericide compounded use of miazines, both show good synergistic effect in certain ratio range, compare with single dose, obviously improved bactericidal effect, had a significant effect for the powdery mildew of preventing and treating on the agricultural, and, two kinds of active substance structures in the composition differ larger, there is not cross resistance, is mixed and uses the resistance effectively to delay single dose to occur and development, the resistance that overcomes and delay pathogen is had preferably effect.Medicine of the present invention is composite, its effect that plays is many-sided, at first, good cooperative synergism effect, the successful of preventing and treating powdery mildew improves, thereby reduce the medicament usage amount, simultaneously effectively delayed the pesticide resistance problem of germ, thereby efficiently solved the problem of germ resistance, in addition, this is composite also adequately and reasonably to use Fluoxastrobin, its advantage is well brought into play, in addition, compositely brought a series of good reaction by this, good drug effect, reduce pesticide dosage, reduce residue of pesticide, reduce peasant's cost and labour, delay the germ resistance, improve environmental pollution.In a word, the present invention efficiently solves the problem of above-mentioned existence, powdery mildew there is good control efficiency, the problems such as the resistance generation that can also effectively avoid using Fluoxastrobin, miazines single dose to bring, drug effect reduction, prolong life cycle and the service life of single dose, better with the drug effect performance of single dose.
Measured the composite mixture of Fluoxastrobin and the phonetic phenol of second, the different proportionings of bupirimate to the indoor virulence of Powdery Mildew at indoor employing seedling pot-culture method.Namely at the greenhouse pot culture cucumber seedling to the 2-3 leaf phase, carrying out foliar spray by the designer drug agent dose processes, inoculation test pathogen after 24 hours, and moisturizing is cultivated in incubator, investigation result when the blank of not dispenser is fully fallen ill, disease scale, preventive effect computational methods are all with reference to the People's Republic of China (PRC) [pesticide field efficacy medicine test criterion].Carry out statistical analysis with the DPS data processing software, calculate the EC50 of each medicament, adopt the abundant method calculating co-toxicity coefficient of Sun Yun (CTC) to estimate and use effect with, the CTC value has synergistic effect greater than 120 o'clock mixtures, less than 80 o'clock be antagonism, have summation action in the time of between 80～120.
The EC50*100 of the EC50/B agent of toxicity index TI (B)=standard agent A
The EC50*100 of the EC50/AB of actual toxicity index ATI (AB)=A
Theoretical toxicity index TTI (AB)=percentage+TI (B) * B the percentage in mixture of TI (A) * A in mixture
Co-toxicity coefficient CTC=ATI (AB)/TTI (AB) * 100
Result of the test is as follows:
The phonetic phenol list of table 1 Fluoxastrobin and second mixture is to the toxicity test of powdery mildew of cucumber bacterium
| Reagent agent | The active ingredient weight ratio | EC50(mg/L) | Co-toxicity coefficient (CTC) |
| Fluoxastrobin | 1.56 | ||
| The phonetic phenol of second | 1.21 | ||
| Fluoxastrobin: the phonetic phenol of second | 20∶1 | 1.18 | 260.81 |
| Fluoxastrobin: the phonetic phenol of second | 10∶1 | 1.02 | 298.04 |
| Fluoxastrobin: the phonetic phenol of second | 5∶1 | 0.87 | 342.12 |
| Fluoxastrobin: the phonetic phenol of second | 1∶1 | 0.69 | 395.04 |
| Fluoxastrobin: the phonetic phenol of second | 1∶5 | 0.68 | 369.70 |
| Fluoxastrobin: the phonetic phenol of second | 1∶10 | 0.84 | 294.09 |
| Fluoxastrobin: the phonetic phenol of second | 1∶20 | 1.06 | 230.76 |
By as seen from Table 1, the phonetic phenol of Fluoxastrobin and second is composite, the powdery mildew of cucumber bacterium had good indoor virulence, the CTC value of seven proportionings is all above 120, show that these two bactericide have good synergistic function under this proportioning, simultaneously can find out that also different its synergistic effects along with the phonetic phenol ratio of Fluoxastrobin and second also are different in composition, mixed ratio synergy between 5: 1～1: 5 is particularly remarkable.
When Fluoxastrobin and bupirimate carry out combine experiment with aforementioned proportion, show the antibacterial rule identical with the phonetic phenol of second, the synergistic effect to the powdery mildew of cucumber bacterium under 5: 1～1: 5 ratio is comparatively obvious.
Embodiment
Be described further below in conjunction with the combination sterilization composition of specific embodiment to Fluoxastrobin of the present invention and miazines bactericide, but the present invention is not limited thereto, the formulation preparation method among the embodiment is conventional method.
The phonetic phenol suspending agent of embodiment 1:21% Fluoxastrobin second comprises following component by weight:
Fluoxastrobin (folding hundred, lower same) 20%
The phonetic phenol 1% of second
Alkylaryl polyoxyethylene polyoxypropylene ether 5%
Poly-naphthaldehyde sulfonate sodium 5%
Ethylene glycol 3%
Xanthans 0.8%
Water surplus
Said components is mixed by formula rate, after high speed shear, obtain the phonetic phenol suspending agent of 21% Fluoxastrobin second.
The phonetic phenol suspending agent of embodiment 2:6% Fluoxastrobin second comprises following component by weight:
Fluoxastrobin 5%
The phonetic phenol 1% of second
Alkylaryl polyoxyethylene polyoxypropylene ether 5%
Poly-naphthaldehyde sulfonate sodium 4%
Ethylene glycol 2.5%
Xanthans 0.8%
Water surplus
Said components is mixed by formula rate, after high speed shear, obtain the phonetic phenol suspending agent of 6% Fluoxastrobin second.
Embodiment 3:15% Fluoxastrobin ethirimol water dispersible granules comprises following component by weight:
Fluoxastrobin 7.5%
The phonetic phenol 7.5% of second
Sodium lignin sulfonate 6%
PO-EO block polyether 4%
Lauryl sodium sulfate 3%
Ammonium sulfate 5%
The precipitated calcium carbonate surplus
Above-mentioned active component, dispersant, wetting agent, disintegrant and the filler ratio in prescription is mixed, become wetting powder through air-flow crushing, add again a certain amount of water mixing extruder grain, obtain 15% Fluoxastrobin ethirimol water dispersible granules after the drying screening.
Embodiment 4:12% Fluoxastrobin bupirimate water dispersible granules comprises following component by weight:
Fluoxastrobin 2%
Bupirimate 10%
Sodium lignin sulfonate 6%
PO-EO block polyether 4%
Lauryl sodium sulfate 3%
Ammonium sulfate 4.5%
The precipitated calcium carbonate surplus
Above-mentioned active component, dispersant, wetting agent, disintegrant and the filler ratio in prescription is mixed, become wetting powder through air-flow crushing, add again a certain amount of water mixing extruder grain, obtain 12% Fluoxastrobin bupirimate water dispersible granules after the drying screening.
Embodiment 5:63% Fluoxastrobin bupirimate wetting powder comprises following component by weight:
Fluoxastrobin 3%
Bupirimate 60%
To methoxyl group fatty acid Sodium p-aminobenzene sulfonat 1%
Sodium methylene bis-naphthalene sulfonate 2%
White carbon 2.5%
The kaolin surplus
Said components is mixed into promoting the circulation of qi stream pulverizes, make 63% Fluoxastrobin bupirimate wetting powder.
The phonetic phenol bupirimate of embodiment 6:63% Fluoxastrobin second wetting powder comprises following component by weight:
Fluoxastrobin 3%
The phonetic phenol 30% of second
Bupirimate 30%
To methoxyl group fatty acid Sodium p-aminobenzene sulfonat 1%
Sodium methylene bis-naphthalene sulfonate 2%
White carbon 2.5%
The kaolin surplus
Said components is mixed into promoting the circulation of qi stream pulverizes, make the phonetic phenol bupirimate of 63% Fluoxastrobin second wetting powder.
Test example: the test of pesticide effectiveness of the medicament of above-described embodiment being tested the control grape powdery mildew
Several mixtures that the embodiment of the invention is obtained carry out the test of pesticide effectiveness, adopt greenhouse cuttage grape seedling, measure Fluoxastrobin and phonetic phenol or/and single mixture of bupirimate to the control efficiency of grape powdery mildew.When grape seedling grows to 3～4 leaves, select the blade of growing way uniformity to adopt manual sprayer to carry out the foliar spray processing, inoculate pathogen after 24 hours, 7d " Invest, Then Investigate " result is cultivated in moisturizing, the results are shown in Table 2.
The phonetic phenol of table 2 Fluoxastrobin and second, bupirimate list mixture are to the control efficiency of grape powdery mildew
| Reagent agent | Extension rate | Disease index | Control efficiency (%) |
| Embodiment 1 product | 1000 | 20.91 | 72.56 |
| Embodiment 2 products | 1000 | 17.86 | 76.56 |
| Embodiment 3 products | 1000 | 18.06 | 76.30 |
| Embodiment 4 products | 1000 | 15.23 | 80.01 |
| Embodiment 5 products | 1000 | 19.96 | 73.80 |
| Embodiment 6 products | 1000 | 18.96 | 75.12 |
| 20% Fluoxastrobin SC | 1000 | 23.1 | 69.68 |
| The phonetic phenol SC of 20% second | 1000 | 24.62 | 67.69 |
| 20% bupirimate SC | 1000 | 23.82 | 68.74 |
| The clear water contrast | 76.21 |
As can be seen from Table 2, the phonetic phenol of Fluoxastrobin and second be or/and the mixture preparation of bupirimate can effectively be prevented and treated grape powdery mildew, and is better than the control efficiency of single dose, significant difference.
As can be seen from the above embodiments, the composition of the phonetic phenol of Fluoxastrobin of the present invention and second or bupirimate has good control efficiency to agriculture powdery mildew, thereby reduced the medicament usage amount, when reducing drug cost, reduced the influence degree to environment.
Claims (6)
1. one kind is used for preventing and treating the bactericidal composition of powdery mildew, and its active ingredient comprises Fluoxastrobin and miazines bactericide, and said composition is specially the following component that comprises by weight:
Fluoxastrobin 20%
The phonetic phenol 1% of second
Alkylaryl polyoxyethylene polyoxypropylene ether 5%
Poly-naphthaldehyde sulfonate sodium 5%
Ethylene glycol 3%
Xanthans 0.8%
Water surplus
Said components is mixed by formula rate, after high speed shear, obtain the phonetic phenol suspending agent of 21% Fluoxastrobin second.
2. one kind is used for preventing and treating the bactericidal composition of powdery mildew, and its active ingredient comprises Fluoxastrobin and miazines bactericide, and said composition is specially the following component that comprises by weight:
Fluoxastrobin 5%
The phonetic phenol 1% of second
Alkylaryl polyoxyethylene polyoxypropylene ether 5%
Poly-naphthaldehyde sulfonate sodium 4%
Ethylene glycol 2.5%
Xanthans 0.8%
Water surplus
Said components is mixed by formula rate, after high speed shear, obtain the phonetic phenol suspending agent of 6% Fluoxastrobin second.
3. one kind is used for preventing and treating the bactericidal composition of powdery mildew, and its active ingredient comprises Fluoxastrobin and miazines bactericide, and said composition is specially the following component that comprises by weight:
Fluoxastrobin 7.5%
The phonetic phenol 7.5% of second
Sodium lignin sulfonate 6%
PO-EO block polyether 4%
Lauryl sodium sulfate 3%
Ammonium sulfate 5%
The precipitated calcium carbonate surplus
Above-mentioned active component, dispersant, wetting agent, disintegrant and the filler ratio in prescription is mixed, become wetting powder through air-flow crushing, add again a certain amount of water mixing extruder grain, obtain 15% Fluoxastrobin ethirimol water dispersible granules after the drying screening.
4. one kind is used for preventing and treating the bactericidal composition of powdery mildew, and its active ingredient comprises Fluoxastrobin and miazines bactericide, and said composition is specially the following component that comprises by weight:
Fluoxastrobin 2%
Bupirimate 10%
Sodium lignin sulfonate 6%
PO-EO block polyether 4%
Lauryl sodium sulfate 3%
Ammonium sulfate 4.5%
The precipitated calcium carbonate surplus
Above-mentioned active component, dispersant, wetting agent, disintegrant and the filler ratio in prescription is mixed, become wetting powder through air-flow crushing, add again a certain amount of water mixing extruder grain, obtain 12% Fluoxastrobin bupirimate water dispersible granules after the drying screening.
5. one kind is used for preventing and treating the bactericidal composition of powdery mildew, and its active ingredient comprises Fluoxastrobin and miazines bactericide, and said composition is specially the following component that comprises by weight:
Fluoxastrobin 3%
Bupirimate 60%
To methoxyl group fatty acid Sodium p-aminobenzene sulfonat 1%
Sodium methylene bis-naphthalene sulfonate 2%
White carbon 2.5%
The kaolin surplus
Said components is mixed into promoting the circulation of qi stream pulverizes, make 63% Fluoxastrobin bupirimate wetting powder.
6. one kind is used for preventing and treating the bactericidal composition of powdery mildew, and its active ingredient comprises Fluoxastrobin and miazines bactericide, and said composition is specially the following component that comprises by weight:
Fluoxastrobin 3%
The phonetic phenol 30% of second
Bupirimate 30%
To methoxyl group fatty acid Sodium p-aminobenzene sulfonat 1%
Sodium methylene bis-naphthalene sulfonate 2%
White carbon 2.5%
The kaolin surplus
Said components is mixed into promoting the circulation of qi stream pulverizes, make the phonetic phenol bupirimate of 63% Fluoxastrobin second wetting powder.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102113486B (en) * | 2010-01-03 | 2013-04-24 | 青岛奥迪斯生物科技有限公司 | Bactericidal composition containing ethirimol and azoxystrobin |
| CN101731223A (en) * | 2010-02-25 | 2010-06-16 | 北京颖泰嘉和科技股份有限公司 | Fungicide composition containing azoxystrobin and ethirimol, and application thereof |
| CN102308825A (en) * | 2011-10-13 | 2012-01-11 | 海利尔药业集团股份有限公司 | Germicide composition in combination with bupirimate |
| CN105265494A (en) * | 2014-06-27 | 2016-01-27 | 陕西美邦农药有限公司 | Highly-efficient bactericidal composition containing polygonum cuspidatum extract |
| CN105475286B (en) * | 2015-12-24 | 2018-05-04 | 北京中林佳诚科技有限公司 | A kind of agricultural bactericidal composition containing bupirimate and Fluoxastrobin |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101595883A (en) * | 2009-05-07 | 2009-12-09 | 深圳诺普信农化股份有限公司 | A kind of composition pesticide and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101595883A (en) * | 2009-05-07 | 2009-12-09 | 深圳诺普信农化股份有限公司 | A kind of composition pesticide and application thereof |
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