CN103636623A - Azoxystrobin-containing bactericidal composition - Google Patents
Azoxystrobin-containing bactericidal composition Download PDFInfo
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- CN103636623A CN103636623A CN201310631598.XA CN201310631598A CN103636623A CN 103636623 A CN103636623 A CN 103636623A CN 201310631598 A CN201310631598 A CN 201310631598A CN 103636623 A CN103636623 A CN 103636623A
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- tetramycin
- fluoxastrobin
- azoxystrobin
- bactericidal composition
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Abstract
The invention belongs to the technical field of pesticides, and particularly relates to an azoxystrobin-containing bactericidal composition which is characterized in that the active ingredients include tetramycin and azoxystrobin. The composition can be made into a suspending agent or water dispersible granules for preventing rice sheath blight, realizes a remarkable synergistic effect, prolongs the duration, reduces the labor amount of farmers and has great economic benefits.
Description
Technical field the invention belongs to technical field of pesticide, contains specifically the bactericidal composition with synergistic effect of tetramycin and Fluoxastrobin.
Background technology
Tetramycin (Tetramycin) claim again tetramycin, is the not stimulation metabolite of streptomyces hygroscopicus Wuzhou subspecies (Streptomyces ahygroscopicn wuzhouensisn subsp.) of the strain that separates in the soil sample of Wuzhou, Guangxi.This product fungicidal spectrum is wide, and three main kind of 26 kinds of known disease funguses such as mastigomycetes, sac fungi and Deuteromycotina fungi are all had to extremely strong killing action.The control of the applicable multiple fungal disease of various crops.Especially to fruit tree putrefaction disease, spot defoliation; Cotton yellow (withered) disease of withering; Root rot; Rice sheath blight disease, seedling blight; Ginseng and pseudo-ginseng black spot; Tealeaves tea gall; Fruit white rot of grape, the climing rot of watermelon, root rot, the rotten special efficacy of stem foot.This composition can obviously promote callus healing simultaneously, promotes weak seedling well developed root system, the recovery of aging root system, improves crop disease-resistant ability and optimizes crop quality.
This product of Fluoxastrobin (Azoxystrobin) is methoxy acrylate (Strobilurin) series bactericidal agent, efficiently, wide spectrum, nearly all mycota (Ascomycotina, Basidiomycotina, Mastigomycotina and Deuteromycotina) disease is all had to good activity as powdery mildew, rust, glume blight, net blotch, downy mildew, rice blast etc.Can be used for cauline leaf spraying, seed treatment.
Rice sheath blight disease (Rhizoctorzia solani) claim again moire disease, is infected and fallen ill by Rhizoctonia solani Kuhn, how under high temperature, super-humid conditions, to fall ill.Banded sclerotial blight is serious in the harm of south rice region, is one of Major Diseases in current Rice Production.This disease can make paddy rice not ear, and particle weight declines, and has a strong impact on rice yield.
Summary of the invention
The object of this invention is to provide a kind of bactericidal composition with synergistic effect and safety and environmental protection, realize the object that improves drug effect, reduces pollution, reduces costs.Be specifically related to the bactericidal composition of tetramycin and azoxystrobin compound.
Utilize bactericidal composition of the present invention, be equipped with the known auxiliary agent of those skilled in that art, with the known method of those skilled in that art, make formulation of the present invention, comprise suspending agent and water dispersible granules.
In above-mentioned bactericidal composition, the weight ratio of tetramycin and Fluoxastrobin is 1:100-100:1.
Above-mentioned bactericidal composition has following characteristics: the 1. advanced environmental protection of formulation, and environmental pollution is little, does not add organic principle in preparation; 2. bactericidal action is strong, is difficult for developing immunity to drugs; 3. two kinds of compositions are composite, have synergistic effect; 4. twenty percent divide between without cross resistance.
Embodiment
For checking tetramycin and two kinds of composite synergistic effects of active ingredient of Fluoxastrobin, first applicant uses these two kinds of compositions to carry out indoor biometrics test, and test method and result are as follows:
First analyzed after the effect feature of two kinds of active ingredients, we are decided to be thanatephorus cucumeris(frank) donk (Thanatephorus cucumeris) by the raw object of surveying, this Pseudomonas Basidiomycotina fungi, and sclerotium is dark brown, it is light brown to taupe mildew that bacterium colony is, and this bacterium can cause the banded sclerotial blight of paddy rice.
The test method of indoor biometrics: adopt growth rate method to measure the inhibitory action of medicament to the growth of rice sheath blight disease mycelia.On the basis of preliminary experiment, from each medicament, germ mycelial growth inhibition rate is reached and within the scope of 10%-90%, designs 5 concentration, first the former medicine of 95% tetramycin and the former medicine of 96% Fluoxastrobin be take methyl alcohol as the liquid that solvent is made into series concentration standby, then by liquid in 1% ratio join melt and the PDA medium of cool to room temperature in, after fully shaking up, pour that in the culture dish (Φ 90mm) of sterilizing, to make band medicine dull and stereotyped into, every processing repeats for four times, to add the blank that is treated to of sterile water; Card punch (Φ 5mm) picking Rhizoctonia solani Kuhn bacterium cake with sterilizing, mycelia faces down aseptic inoculation in the central authorities with medicine flat board, be inverted in interior cultivation of constant incubator of 25 ℃, after cultivation 6d, adopt right-angled intersection method to measure colony diameter, calculate the EC of each medicament to pathogen
50, and calculate according to the following equation toxicity index, the virulence of more different medicaments and bacteriostasis.Above-mentioned raw survey experiment former medicine used and reagent are all bought from other producers.
The co-toxicity of mixture preparation adopts the abundant co-toxicity coefficient method representation of Sun Yun:
The theoretical toxicity index TTI=∑ of mixture preparation (the toxicity index ATI of certain medicine * percentage of this pharmaceutically active ingredient in mixture).
It is synergistic effect that co-toxicity coefficient CTC is greater than at 120 o'clock, and being less than at 80 o'clock is antagonism, is addition in the time of between 80-120.
Indoor biometrics experimental data sees the following form:
Table 1 tetramycin, Fluoxastrobin and the measurement result of different proportioning to rice sheath blight disease co-toxicity coefficient thereof
Analyze above-mentioned data, can obviously find out when tetramycin and Fluoxastrobin are composite in varing proportions, the co-toxicity coefficient (CTC) of formula is all greater than 120, the prevention and control capability of rice sheath blight disease is had to the synergistic effect of different proportion, wherein tetramycin and Fluoxastrobin are being that proportioning five is the most remarkable to the synergy between proportioning seven between 1:5-5:1, and visible tetramycin and Fluoxastrobin carry out the composite desirable medicament of preventing and treating rice sheath blight disease that becomes.
By indoor biometrics verification experimental verification tetramycin with two kinds of active ingredients of Fluoxastrobin are composite can good synergistic effect, below by instantiation, describe the present invention in detail, but the present invention absolutely not only only limits to following these embodiment.In formula, percentage is all weight percentage, and the former medicine using and auxiliary agent are other producers and buy.
Formulation examples is as follows:
Example one, 10.1% tetramycin Fluoxastrobin suspending agent
Example two, 20.4% tetramycin azoxystrobin water dispersible granule
Example three, 15.5% tetramycin Fluoxastrobin suspending agent
Example four, 8.8% tetramycin azoxystrobin water dispersible granule
Example five, 6% tetramycin Fluoxastrobin suspending agent
Example six, 3% tetramycin azoxystrobin water dispersible granule
Example seven, 3.3% tetramycin Fluoxastrobin suspending agent
Example eight, 30.6% tetramycin azoxystrobin water dispersible granule
Example nine, 20.2% tetramycin Fluoxastrobin suspending agent
Example ten, 8% tetramycin azoxystrobin water dispersible granule
Example 11,9% tetramycin Fluoxastrobin suspending agent
Select above example to prevent and treat the field trial of rice sheath blight disease, the formula of determining is prevented and treated the effect of rice sheath blight disease; Simultaneously by the Contrast on effect with tetramycin and Fluoxastrobin single dose, verify the synergistic effect after composite.Concrete test method data are as follows:
8% tetramycin Fluoxastrobin suspending agent and other preparation are done the test of pesticide effectiveness of field control rice sheath blight disease.Test site is Jianli County, Jingzhou City, Hubei Province, and the time is on June 15th, 2013, test each and process three repetitions, and community randomized arrangement, each community area is 60m
2, adopting back-pack electric compression sprayer, dispenser was sunny calm the same day, and the planting habit of all communities is all identical with local planting habit, records the dispenser same day and the synoptic data of a week thereafter, specific as follows:
Table 2 duration of test meteorological data
Investigation method is: fixed 2 points of each community diagonal, and every some straight ahead is determined 25 clumps, and after dispenser, fixed point investigation in the 7th day, 21 days, investigates each community disease and refers to, calculates preventive effect, and carries out the new multipole difference analysis of Deng Kenshi.
The grade scale of disease index:
0 grade: complete stool is anosis
1 grade: the morbidity of radical leaves leaf sheath
3 grades: from top, count the 3rd following blade leaf sheath morbidity of leaf
5 grades: from top, count second following blade leaf sheath morbidity of leaf
7 grades: from the following blade leaf sheath morbidity of top
9 grades: complete stool morbidity is withered
Table 3 6% tetramycin Fluoxastrobin suspending agent and the preventive effect of different medicament to rice sheath blight disease
Note: in table, data are the mean value time repeating for 3 times: in June, 2013 place: Jianli, Jing Zhou, Hubei
From above-mentioned data, can find out, tetramycin and azoxystrobin compound preparation after medicine 7 days preventive effects all over 75%, and tetramycin single dose 7 days preventive effects after medicine are 55.35%, the preventive effect of Fluoxastrobin single dose is 51.71%, the preventive effect that has utmost point significant difference between complex preparation and single dose, visible two active ingredients are composite good synergistic effect.And after medicine 21 days, all complex preparations have all surpassed 86% to the preventive effect of rice sheath blight disease, and the lasting period of composite rear preparation extends, and synergistic effect is remarkable, has reduced dosage, has very high economic benefit.
Claims (3)
1. containing the bactericidal composition of Fluoxastrobin, it is characterized in that: described active component is comprised of tetramycin and Fluoxastrobin, the weight ratio of tetramycin and Fluoxastrobin is 1:100～100:1.
2. bactericidal composition according to claim 1, is characterized in that: by active ingredient and auxiliary material, make suspending agent, water dispersible granules.
3. according to claim 1 or bactericidal composition claimed in claim 2, it is characterized in that: for preventing and treating rice sheath blight disease.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310631598.XA CN103636623A (en) | 2013-11-28 | 2013-11-28 | Azoxystrobin-containing bactericidal composition |
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| CN201310631598.XA CN103636623A (en) | 2013-11-28 | 2013-11-28 | Azoxystrobin-containing bactericidal composition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104757002A (en) * | 2015-04-24 | 2015-07-08 | 浙江世佳科技有限公司 | Sterilization suspension agent containing tetramycin and azoxystrobin and preparation method thereof |
| CN104770376A (en) * | 2015-04-24 | 2015-07-15 | 浙江世佳科技有限公司 | Tetramycin and azoxystrobin containing sterilizing aqueous emulsion and preparation method thereof |
| CN104770378A (en) * | 2015-04-24 | 2015-07-15 | 浙江世佳科技有限公司 | Tetramycin and azoxystrobin containing sterilizing composition and preparation and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102067839A (en) * | 2011-02-17 | 2011-05-25 | 德强生物股份有限公司 | Composite pesticide of azoxystrobin and ningnan mycin |
| CN103583532A (en) * | 2013-11-26 | 2014-02-19 | 辽宁微科生物工程有限公司 | Tetramycin complex and application |
-
2013
- 2013-11-28 CN CN201310631598.XA patent/CN103636623A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102067839A (en) * | 2011-02-17 | 2011-05-25 | 德强生物股份有限公司 | Composite pesticide of azoxystrobin and ningnan mycin |
| CN103583532A (en) * | 2013-11-26 | 2014-02-19 | 辽宁微科生物工程有限公司 | Tetramycin complex and application |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104757002A (en) * | 2015-04-24 | 2015-07-08 | 浙江世佳科技有限公司 | Sterilization suspension agent containing tetramycin and azoxystrobin and preparation method thereof |
| CN104770376A (en) * | 2015-04-24 | 2015-07-15 | 浙江世佳科技有限公司 | Tetramycin and azoxystrobin containing sterilizing aqueous emulsion and preparation method thereof |
| CN104770378A (en) * | 2015-04-24 | 2015-07-15 | 浙江世佳科技有限公司 | Tetramycin and azoxystrobin containing sterilizing composition and preparation and application thereof |
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Application publication date: 20140319 |