CN104957185A - Bactericide containing tebuconazole and radix astragali - Google Patents
Bactericide containing tebuconazole and radix astragali Download PDFInfo
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- CN104957185A CN104957185A CN201510474726.3A CN201510474726A CN104957185A CN 104957185 A CN104957185 A CN 104957185A CN 201510474726 A CN201510474726 A CN 201510474726A CN 104957185 A CN104957185 A CN 104957185A
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- bactericide
- radix astragali
- tebuconazole
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Abstract
The invention relates to a bactericide containing tebuconazole and radix astragali. The active ingredients of the bactericide include tebuconazole and radix astragali in a weight ratio of (1-6) to (10-50). The invention also relates to an application of the bactericide to prevention and control of rice sheath blight diseases. The traditional Chinese medicine radix astragali is mixed with the ingredients of the bactericide, and tests prove that after radix astragali is added to the ingredients of the bactericide, the pesticide resistance of pathogens to the bactericide can be reversed, so that the prevention and control effects of the bactericide are improved, the application cost and the pesticide residues can be substantially reduced, higher economic benefits can be created for farmers and the food safety is also ensured.
Description
Technical field
The present invention relates to technical field of pesticide, specifically a kind of bactericide containing Tebuconazole and the Radix Astragali.
Background technology
Tebuconazole; chemical name is (RS)-1-(4-chlorphenyl)-4; 4-dimethyl-3-(1H-1; 2; 4 triazol-1-yl methyl) penta-3-alcohol; be a kind of efficient, wide spectrum, interior absorption triazole type sterilization pesticide, have protection, treat, root out three zones, fungicidal spectrum is wide, the lasting period is long.
Tebuconazole is used as seed treatment and foliar spray in worldwide, and fungicidal spectrum is wide, not only active high, and the lasting period is long.Tebuconazole is mainly used in preventing and treating the multiple fungal disease on the crops such as wheat, paddy rice, peanut, vegetables, banana, apple, pears and corn and Chinese sorghum, and it obtains registration and extensive use in 60 various crop of more than 50 countries in the whole world.These product are for preventing and treating sclerotinia rot of colza, and not only preventive effect is good, and have resistant to lodging, the features such as production-increasing function is obvious, be the demethylation suppressing ergosterol on its cell membrane, make germ cannot form cell membrane, thus kill germ the mechanism of action of germ.In recent years due to its large-area popularization, pathogen is caused to reduce its susceptibility, resistance grow.
Summary of the invention
The technical problem to be solved in the present invention is, for the deficiency that above-mentioned existing bactericide exists, a kind of bactericide containing Tebuconazole and the Radix Astragali is provided, overcome that existing bactericide causes due to resistance problems preventive effect reduces, consumption strengthens, residual high and defect that cost is high.
The present invention realizes the technical scheme that above-mentioned purpose takes: a kind of bactericide containing Tebuconazole and the Radix Astragali, active ingredient is made up of Tebuconazole and the Radix Astragali, and the described Radix Astragali and the weight ratio of Tebuconazole are 1-6: 10-50.
The present invention's also application of claimed described bactericide on the water prevention rice sheath blight.
The present invention utilizes Chinese herbal medicine astragalus and microbiocidal composition mixture, test proves, add the Radix Astragali in germicide constituent after, the pesticide resistance of pathogen to bactericide can be reversed, thus improve the control efficiency of bactericide, and can significantly reduce drug cost and medicament residue, for peasant household creates higher economic benefit, also ensure that food security simultaneously.
Embodiment
Below in conjunction with test data and embodiment, technical scheme of the present invention and beneficial effect are described further.
One indoor joint toxicity measuring test
For clear and definite bactericide (propiconazole, SYP-3375, carbendazim, epoxiconazole, prochloraz, Fluoxastrobin, thifluzamide, tetraconazole, Tebuconazole, azoles alcohol, jinggangmeisu, Difenoconazole) and Radix Astragali mixture affect the virulence of Rhizoctonia solani Kuhn, mycelial growth rate method is adopted to carry out indoor measurement.
Rhizoctonia solani Kuhn is separated from surrounding area, Guigang, purifying cultivate after through Koch's Postulates verify its pathogenic after by strain inoculation in PDA medium, at 25 DEG C, under 90% damp condition, cultivate 5d, break into bacterium cake with 0.4cm card punch after mycelia covers with culture dish and use.
The Radix Astragali and bactericide are pressed active ingredient part by weight 1: 10 respectively, 1: 20, 1: 50, 3: 10, 6: 10, 6: 30, 6: 50 mixing are made into binary built agent as mixture 1-mixture 7, bactericide single dose and mixture 1-mixture 7 are respectively diluted 7 concentration according to geometric ratio gradient from 10ppm, blank is made with clear water process, make PDA flat board, arranging without medicament is contrast, every concentration repeats 3 times, after aseptically the bacterium cake accomplished fluently being inverted in the dull and stereotyped central authorities of each process PDA, flat board is placed in 25 DEG C, cultivate under 90% damp condition, investigation result when mycelial growth diameter reaches culture dish diameter about 50%, calculate inhibiting rate, and the EC of each chemicals treatment is calculated by DPS Software of Data Statistics
50and composite co-toxicity coefficient.Because Radix Astragali single dose does not almost affect for Rhizoctonia solani Kuhn, therefore the present invention calculate composite co-toxicity coefficient time by the EC of Radix Astragali single dose
50be designated as 0, the EC of co-toxicity coefficient=composite
50the EC of/bactericide single dose
50.Statistics is as shown in the table.
As can be known from the above table: the Radix Astragali and propiconazole, SYP-3375, carbendazim, epoxiconazole, prochloraz, Fluoxastrobin, thifluzamide, tetraconazole, Tebuconazole, azoles alcohol all have obvious synergistic effect to Rhizoctonia solani Kuhn afterwards in 1-6: 10-50 ratio is composite, and the Radix Astragali and jinggangmeisu, Difenoconazole be added or inhibitory action in composite rear to show Rhizoctonia solani Kuhn of 1-6: 10-50 ratio.
Two field medicine effect tests
Test medicine
12 single doses: propiconazole, SYP-3375, carbendazim, epoxiconazole, prochloraz, Fluoxastrobin, thifluzamide, tetraconazole, Tebuconazole, azoles alcohol, jinggangmeisu, Difenoconazole;
12 mixed agents: be the weight ratio of 6: 50 according to the Radix Astragali and bactericide, add the water extract of the Radix Astragali in above-mentioned single dose.
Test establishes 31 process altogether together with blank, and each process repeats for 3 times, Gong93Ge community, each community randomized arrangement.
Test method
By above-mentioned single dose and mixed agent even spraying, 21 days investigation rice sheath blight disease controlling results after medicine.
Result of the test
| Bactericide | Single dose preventive effect (%) | The Radix Astragali and bactericide are 6: 50 mixtures (%) |
| Propiconazole | 64.55 | 89.60 |
| SYP-3375 | 65.56 | 85.17 |
| Carbendazim | 46.81 | 90.98 |
| Epoxiconazole | 64.02 | 87.89 |
| Prochloraz | 70.40 | 86.23 |
| Fluoxastrobin | 66.82 | 90.63 |
| Thifluzamide | 72.63 | 86.91 |
| Tetraconazole | 64.62 | 85.55 |
| Tebuconazole | 72.22 | 88.20 |
| Azoles alcohol | 71.03 | 88.54 |
| Jinggangmeisu | 52.41 | 51.24 |
| Difenoconazole | 64.38 | 70.24 |
As can be known from the above table: the Radix Astragali and propiconazole, SYP-3375, carbendazim, epoxiconazole, prochloraz, Fluoxastrobin, thifluzamide, tetraconazole, Tebuconazole, azoles alcohol are more obvious than single dose good in the composite rear preventive effect to rice sheath blight disease of 6: 50 ratio, and the Radix Astragali and jinggangmeisu, Difenoconazole are more or less the same in the composite rear preventive effect to rice sheath blight disease of 6: 50 ratio and single dose.
Claims (2)
1. contain a bactericide for Tebuconazole and the Radix Astragali, it is characterized in that, active ingredient is made up of Tebuconazole and the Radix Astragali, and the described Radix Astragali and the weight ratio of Tebuconazole are 1-6: 10-50.
2. the application of bactericide according to claim 1 on the water prevention rice sheath blight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510474726.3A CN104957185A (en) | 2015-08-06 | 2015-08-06 | Bactericide containing tebuconazole and radix astragali |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510474726.3A CN104957185A (en) | 2015-08-06 | 2015-08-06 | Bactericide containing tebuconazole and radix astragali |
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| CN104957185A true CN104957185A (en) | 2015-10-07 |
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| CN201510474726.3A Pending CN104957185A (en) | 2015-08-06 | 2015-08-06 | Bactericide containing tebuconazole and radix astragali |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101156606A (en) * | 2007-11-20 | 2008-04-09 | 史建生 | A plants antiseptic as well as preparing method and application |
| CN102940000A (en) * | 2012-11-12 | 2013-02-27 | 周华斌 | Broad-spectrum bactericide of plant source |
| CN102986742A (en) * | 2012-12-18 | 2013-03-27 | 江苏省中国科学院植物研究所 | application of astragalus mongholicus water extract to biopesticides |
-
2015
- 2015-08-06 CN CN201510474726.3A patent/CN104957185A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101156606A (en) * | 2007-11-20 | 2008-04-09 | 史建生 | A plants antiseptic as well as preparing method and application |
| CN102940000A (en) * | 2012-11-12 | 2013-02-27 | 周华斌 | Broad-spectrum bactericide of plant source |
| CN102986742A (en) * | 2012-12-18 | 2013-03-27 | 江苏省中国科学院植物研究所 | application of astragalus mongholicus water extract to biopesticides |
Non-Patent Citations (3)
| Title |
|---|
| 周志和 等: "80%戊唑醇可湿性粉剂对水稻纹枯病的防治效果试验", 《广西植保》 * |
| 嵇保中: "《林木化学保护学》", 31 August 2011, 中国林业出版社 * |
| 谢加勇 等: "25%戊唑醇水乳剂防治水稻纹枯病田间试验研究", 《现代农业科技》 * |
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