CN105053040A - Bactericide containing propiconazole and radix astragali - Google Patents
Bactericide containing propiconazole and radix astragali Download PDFInfo
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- CN105053040A CN105053040A CN201510474730.XA CN201510474730A CN105053040A CN 105053040 A CN105053040 A CN 105053040A CN 201510474730 A CN201510474730 A CN 201510474730A CN 105053040 A CN105053040 A CN 105053040A
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- radix astragali
- bactericide
- propiconazole
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Abstract
The invention relates to a bactericide containing propiconazole and radix astragali; effective ingredients comprise propiconazole and radix astragali, and the weight ratio of radix astragali to propiconazole is (1-6) to (10-50). The invention also discloses an application of the bactericide in prevention and treatment of rice sheath blight. With use of blending of the traditional Chinese medicine radix astragali and the bactericide composition, experiments prove that after radix astragali is added in the bactericide composition, drug resistance of pathogens on the bactericide can be reversed, so that the prevention and treatment effect of the bactericide is improved, drug use costs and drug residues can be greatly decreased, higher economic benefits are created for farmers, and besides, the food safety is ensured.
Description
Technical field
The present invention relates to technical field of pesticide, specifically a kind of bactericide containing propiconazole and the Radix Astragali.
Background technology
Propiconazole (propiconazole) is a kind of interior absorption triazole type New-type wide-spectrum bactericide with treatment and protection double action; can be absorbed by root, stem, leaf portion; and can soon in plant strain body on conduction; the disease that control sac fungi, basidiomycetes and imperfect fungus cause; particularly to diseases such as take-all, powdery mildew, rust, root rot, bakanae disease of rice, banded sclerotial blight, sigatokas, there is special efficacy, effectively can prevent and treat the disease that most of higher fungi causes.Propiconazole belongs to the triazole bactericidal agent in sterol inhibitor, and its mechanism of action is the biosynthesis affecting sterol, the cell membrane function of pathogen is damaged, finally causes cell death, thus the effect playing sterilization, diseases prevention and cure the disease.Propiconazole has the features such as fungicidal spectrum is extensive, activity is high, sterilization speed is fast, the lasting period is long, Uptake and translocation is strong, has become the emerging broad-spectrum germicide Representative Cultivars of large-tonnage triazole type in the world.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 propiconazole 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 propiconazole and the Radix Astragali, active ingredient is made up of propiconazole and the Radix Astragali, and the described Radix Astragali and the weight ratio of propiconazole 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 propiconazole and the Radix Astragali, it is characterized in that, active ingredient is made up of propiconazole and the Radix Astragali, and the described Radix Astragali and the weight ratio of propiconazole 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 |
|---|---|---|---|
| CN201510474730.XA CN105053040A (en) | 2015-08-06 | 2015-08-06 | Bactericide containing propiconazole and radix astragali |
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|---|---|---|---|
| CN201510474730.XA CN105053040A (en) | 2015-08-06 | 2015-08-06 | Bactericide containing propiconazole and radix astragali |
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| CN105053040A true CN105053040A (en) | 2015-11-18 |
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| CN201510474730.XA Pending CN105053040A (en) | 2015-08-06 | 2015-08-06 | Bactericide containing propiconazole 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 |
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2015
- 2015-08-06 CN CN201510474730.XA patent/CN105053040A/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 |
|---|
| 唐正合 等: "丙环唑对水稻纹枯病菌的抑制作用及对纹枯病的防治效果", 《植物保护》 * |
| 嵇保中: "《林木化学保护学》", 31 August 2011 * |
| 王春花: "250g/L丙环唑EC防治水稻纹枯病的效果", 《农技服务》 * |
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