CN103548858A - Bactericide compounded by pyraclostrobin and hexaconazole as well as preparation method of bactericide - Google Patents
Bactericide compounded by pyraclostrobin and hexaconazole as well as preparation method of bactericide Download PDFInfo
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- CN103548858A CN103548858A CN201310544701.7A CN201310544701A CN103548858A CN 103548858 A CN103548858 A CN 103548858A CN 201310544701 A CN201310544701 A CN 201310544701A CN 103548858 A CN103548858 A CN 103548858A
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Abstract
The invention relates to a bactericide compounded by pyraclostrobin and hexaconazole as well as a preparation method of the bactericide, and relates to the technical field of pesticides. The bactericide comprises the following components in percent by weight: 0.1-20% of pyraclostrobin, 0.1-40% of hexaconazole, 2-8% of a wetting dispersant, 1-5% of an antifreezing agent, 0.1-2% of a thickener, 0.1-0.5% of a defoamer, 0.1-2% of a crystallization inhibitor and 0.1-0.4% of a preservative. The preparation method comprises the following steps: firstly, mixing auxiliary materials with water in proportion; shearing at a high speed and uniformly mixing; then, adding the pyraclostrobin and the hexaconazole to mix; and grinding for 2-3 hours in a sand mill, wherein the grain sizes are less than 2-3 microns, and the grinding temperature is controlled below 45 DEG C. The bactericide provided by the invention combines the advantages of pyraclostrobin and hexaconazole single dosage products, and in the preparation, water replaces the organic solvent, so that the bactericide is safe to produce and use and low in cost.
Description
Technical field:
The present invention relates to technical field of pesticide, be specifically related to composite bactericide of a kind of pyraclostrobin and azoles alcohol and preparation method thereof.
Background technology:
Pyraclostrobin is New-type wide-spectrum bactericide.The mechanism of action is mitochondrial respiratory inhibitor, by stoping electronics to shift in cytochrome b cl is synthetic.There is protection, treatment, blade infiltration conduction.Pyraclostrobin missible oil shows that through field control effectiveness test result powdery mildew of cucumber, downy mildew and banana freckle, leaf spot are had to good control efficiency.The dosage of preventing and treating powdery mildew of cucumber, downy mildew is active ingredient 75～150g/hm2.After thin up, in their early stage even spraying, generally spray medicine 3～4 times, interval 7d sprays 1 medicine.The active ingredient concentration of control banana freckle, leaf spot is 83.3-250mg/kg (extension rate is 1000-3000 times), in their early stage, starts spraying, generally sprays medicine 3 times, and interval 10d sprays 1 medicine.Spray medicine number of times is depending on the state of an illness.To cucumber, banana safety, have no poisoning and occur.But the major product of pyraclostrobin registration is at present 250 grams per liter pyraclostrobin missible oil (B ASF), use a large amount of organic solvents to have larger impact to environment, do not meet the development trend of pesticidal preparations.Azoles alcohol; it is a kind of interior absorption triazole bactericidal agent with protection and therapeutic action; can be absorbed by root, stem, leaf portion; and can be soon in plant strain body on conduction; control sac fungi, the disease that basidiomycetes and imperfect fungus cause, particularly to take-all, powdery mildew, rust, root rot; rice sheath blight disease, sigatoka has good control efficiency.
The alcohol of the azoles single dose of registration mainly contains missible oil at present, microemulsion, and water dispersible granules, suspending agent, there are no the suspending agent product composite with pyraclostrobin.
Summary of the invention:
The object of this invention is to provide composite bactericide of a kind of pyraclostrobin and azoles alcohol and preparation method thereof, it combines pyraclostrobin and the advantage of azoles alcohol single dose product, provide a kind of synergy remarkable, and there is the composite bactericide suspending agent of obvious production-increasing function, its preparation is with water to replace organic solvent, production and application safety, cost is low.
In order to solve the existing problem of background technology, the present invention is by the following technical solutions: its percentage by weight formula consists of pyraclostrobin 0.1%-20%, azoles alcohol 0.1%-40%, wetting dispersing agent 2-8%, antifreezing agent 1%-5%, thickener 0.1%-2%, defoamer 0.1%-0.5%, crystallization inhibitor 0.1%-2%, preservative 0.1%-0.4%.
Preparation method and the production stage of the bactericide suspending agent that described pyraclostrobin is composite with azoles alcohol are: first auxiliary agent and water are mixed in proportion, through high speed shear, mix, add again pyraclostrobin and azoles alcohol mixing, in sand mill, grind 2～3 hours, make particle diameter all below 2-3 micron, control sand milling temperature lower than 45 degree.
The present invention has advantages of following beneficial effect: it combines pyraclostrobin and azoles alcohol single dose product, provide a kind of synergy remarkable, and have the composite bactericide suspending agent of obvious production-increasing function, its preparation is with water to replace organic solvent, production and application safety, cost is low.
Embodiment one: this embodiment by the following technical solutions: its percentage by weight formula consists of: pyraclostrobin 20%, azoles alcohol 30%, wetting dispersing agent 8%, antifreezing agent 4%, thickener 0.65%, defoamer 0.4%, crystallization inhibitor 2%, preservative 0.2%.
Described crystallization inhibitor is a kind of high-molecular block copolymer.
Preparation method and the production stage of the bactericide suspending agent that described pyraclostrobin is composite with azoles alcohol are: first auxiliary agent and water are mixed in proportion, through high speed shear, mix, add again pyraclostrobin and azoles alcohol mixing, in sand mill, grind 2～3 hours, make particle diameter all below 2-3 micron, control sand milling temperature lower than 45 degree.
This embodiment has advantages of following beneficial effect: it combines pyraclostrobin and azoles alcohol single dose product, provide a kind of synergy remarkable, and have the composite bactericide suspending agent of obvious production-increasing function, its preparation is with water to replace organic solvent, production and application safety, cost is low.
Embodiment two: this embodiment is that with the difference of embodiment one its percentage by weight formula consists of: pyraclostrobin 10%, azoles alcohol 30%, wetting dispersing agent 6%, antifreezing agent 4%, thickener 0.65%, defoamer 0.4%, crystallization inhibitor 1.5%, preservative 0.2%, wherein crystallization inhibitor is a kind of high-molecular block copolymer; Its preparation method and step are identical with embodiment one.
Embodiment three: this embodiment is that with the difference of embodiment one its percentage by weight formula consists of: pyraclostrobin 4%, azoles alcohol 20%, wetting dispersing agent 5%, antifreezing agent 4%, thickener 1.7%, defoamer 0.4%, crystallization inhibitor 1%, wherein crystallization inhibitor is a kind of high-molecular block copolymer; Its preparation method and step are identical with embodiment one.
Embodiment:
Test is total to dispenser once, check plot spray equivalent clear water.While making up a prescription, after first medicament fully being dissolved with a small amount of water, then add suitable quantity of water to carry out complete stool even spraying.During spray medicine, all adopting power driven sprayer, operating pressure is 2.0～2.3kg/cm2, shower nozzle aperture 1.2mm.Community spouting liquid is used by 675 liters/hectare, and liquid is sprayed application to the positive and negative two sides of crop leaf uniformly.With the moistening blade of liquid, not lower is degree.
Experimental field be located at Zhejiang, select the medium rice field of occurring degree for experimental field, soil fertility is medium, and irrigation and drainage are convenient.Adopt bilinear sampling method ，Mei community to get 5 points, look into 5 caves at every, during investigation, 2 blades in the fixing middle part of every strain fix a point to check.
According to rice sheath blight disease grade scale, carry out classification, record total strain number, diseased plant number, severity, calculate diseased plant rate, disease index and preventive effect.
Rice sheath blight disease grade scale is:
0 grade: complete stool is anosis;
1 grade: the 4th blade and following leaf sheath thereof, blade morbidity (take sword-like leave as the 1st leaf);
3 grades: the 3rd blade and following leaf sheath thereof, blade morbidity;
5 grades: the 2nd blade and following leaf sheath thereof, blade morbidity;
7 grades: sword-like leave blade and following leaf sheath thereof, blade morbidity;
9 grades: complete stool morbidity, withered ahead of time.
9 grades: the sick area of scab accounts for whole leaf area more than 50%.
Test is investigated 3 times altogether, i.e. disease index investigation before medicine, preventive effect investigation in 9 days after medicine, preventive effect investigation in 20 days after medicine.
Drug effect computational methods: diseased plant rate (%)=diseased plant number/investigate total strain number * 100
Disease index=Σ (diseased plant number * relative level numerical value at different levels)/(investigating total strain number * 9) * 100
Control efficiency (%)=(1-(disease index after the front disease index * treatment region medicine of blank district medicine)/(the front disease index of disease index * treatment region medicine after blank district medicine)) * 100
The effect that each processing of result of the test and analysis prevents and treats rice sheath blight disease is in Table 1.
Table 1
Interpretation of result:
As can be seen from Table 1,24% pyraclostrobin the combination that is mixed of azoles alcohol 1: 5 to prevent and treat the effect of rice sheath blight disease remarkable.Under the consumption of same 5 grams every mu, the effect of complex preparation is significantly better than two kinds of single doses, and its quick-acting and lasting effect are all relatively good, especially outstanding with lasting effect.Experiment results proved, 40% azoles alcohol single dose successful be better than 25% pyraclostrobin single dose.The preventive effect of 25% pyraclostrobin single dose is only 69.8%, but after its medication, paddy rice growing way is processed significantly better than other.According to field range estimation, under test dose, paddy growth is normal, and the poisoning phenomenon to paddy rice does not all appear in each treatment agent, illustrates that it is safe to paddy rice.Prevent at the initial stage of a disease or in advance desirable more preferably control efficiency.
Above-described embodiment is only for the design of the present invention of explaining, but not restriction to rights protection of the present invention, allly utilizes this design to carry out the change of unsubstantiality to the present invention, all should fall into protection scope of the present invention.
Claims (2)
1. composite bactericide of a pyraclostrobin and azoles alcohol and preparation method thereof, the percentage by weight formula that it is characterized in that it consists of pyraclostrobin 0.1%-20%, azoles alcohol 0.1%-40%, wetting dispersing agent 2-8%, antifreezing agent 1%-5%, thickener 0.1%-2%, defoamer 0.1%-0.5%, crystallization inhibitor 0.1%-2%, preservative 0.1%-0.4%.
2. composite bactericide of a pyraclostrobin and azoles alcohol and preparation method thereof, the preparation method and the production stage that it is characterized in that it are: first auxiliary agent and water are mixed in proportion, through high speed shear, mix, add again pyraclostrobin and azoles alcohol mixing, in sand mill, grind 2～3 hours, make particle diameter all below 2-3 micron, control sand milling temperature lower than 45 degree.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104365590A (en) * | 2014-12-01 | 2015-02-25 | 山东省联合农药工业有限公司 | Continuous pyraclostrobin suspending agent preparation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997040688A1 (en) * | 1996-04-26 | 1997-11-06 | Basf Aktiengesellschaft | Fungicide mixture |
| CN102172241A (en) * | 2011-03-19 | 2011-09-07 | 陕西汤普森生物科技有限公司 | Pesticide composition containing pyraclostrobin and triazoles |
| CN102273473A (en) * | 2011-06-20 | 2011-12-14 | 青岛泰生生物科技有限公司 | bactericidal composition |
| CN102379304A (en) * | 2011-09-13 | 2012-03-21 | 广西田园生化股份有限公司 | Pyraclostrobin-containing ultralow-volume liquid preparation |
-
2013
- 2013-11-06 CN CN201310544701.7A patent/CN103548858A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997040688A1 (en) * | 1996-04-26 | 1997-11-06 | Basf Aktiengesellschaft | Fungicide mixture |
| CN102172241A (en) * | 2011-03-19 | 2011-09-07 | 陕西汤普森生物科技有限公司 | Pesticide composition containing pyraclostrobin and triazoles |
| CN102273473A (en) * | 2011-06-20 | 2011-12-14 | 青岛泰生生物科技有限公司 | bactericidal composition |
| CN102379304A (en) * | 2011-09-13 | 2012-03-21 | 广西田园生化股份有限公司 | Pyraclostrobin-containing ultralow-volume liquid preparation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104365590A (en) * | 2014-12-01 | 2015-02-25 | 山东省联合农药工业有限公司 | Continuous pyraclostrobin suspending agent preparation method |
| CN104365590B (en) * | 2014-12-01 | 2016-03-30 | 山东省联合农药工业有限公司 | A kind of pyraclostrobin suspending agent preparation method of serialization |
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