CN102405912A - Synergistic sterilization composition containing epoxiconazole and azoxystrobin - Google Patents
Synergistic sterilization composition containing epoxiconazole and azoxystrobin Download PDFInfo
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- CN102405912A CN102405912A CN2011103684979A CN201110368497A CN102405912A CN 102405912 A CN102405912 A CN 102405912A CN 2011103684979 A CN2011103684979 A CN 2011103684979A CN 201110368497 A CN201110368497 A CN 201110368497A CN 102405912 A CN102405912 A CN 102405912A
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- fluoxastrobin
- ring azoles
- fluorine ring
- azoxystrobin
- sterilization composition
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Abstract
The invention discloses a synergistic sterilization composition containing epoxiconazole and azoxystrobin, wherein the effective components are epoxiconazole and azoxystrobin with the mass ratio of 10:1-1:10. The sterilization composition of the present invention is suitable for preventing and treating banana leaf spot disease. The combination of two active ingredients enables obvious synergic effect, thereby the application amount of the pesticide effective components can be reduced, the cost of the sterilization composition is reduced, the economic benefit is enhanced and the adverse influence of pesticide on environment is reduced.
Description
Technical field
The present invention relates to pesticide sterilizing composite, is to be active ingredient with fluorine ring azoles and Fluoxastrobin, is used for preventing and treating on the agricultural sigatoka.
Background technology
In the crop growth process, receive various diseases easily and infect, fungal disease particularly, it is of a great variety, and it is serious to cause harm, and for a long time, chemical control is to prevent and treat the main effective means of disease.
Sigatoka is one of the most important disease of banana that causes harm, and it is caused by multiple fungi, mainly contains Cercospora leaf spot, dark two mould leaf spots of spore and the mould leaf spot of little Dou Shi.Cercospora leaf spot comprises that macula lutea type leaf spot claims two kinds of sigatoka leaf spot disease and blackspot type leaf spots again.This disease lower blade that causes harm earlier, after progressively spread to upper blade, scab just is grain of rice shape or linear, faint yellow or brown; Parallel with vein, be shown in the leaf north back of the body earlier, after develop into ellipse or strip, yellowish-brown or pitchy, a large amount of scabs separately appear in blade repeated infection, scab converges for many years, causes that any of several broadleaf plants leaf large tracts of land is withered.Dark two mould leaf spot of spore claims that again grey line is sick, causes that oval taupe scab in blade face or leaf margin are withered.Scab initial stage brown, after expand to central authorities' light brown, tool wheel line, auburn elliptical spot on every side; Scab is invaded along the leaf margin water hole; Water stain shape, crineous, crescent or oval, the scab that differs in size appear in the initial stage leaf margin; Later stage is united brown, wave ring grain dead band for being parallel to arteries and veins in the leaf along leaf margin; The back becomes canescence, matter is crisp, and rainy season, lurid chlorisis band appearred in sick strong portion intersection.The mould leaf spot of little Dou Shi claims that again the coal line is sick, common in, the lower blade morbidity.Scab brown, ellipse, tangible wheel line is arranged, pilosity is born in leaf margin, and there is obvious limit in sick strong portion.Leaf spot causes that mainly banana blade large tracts of land is withered, influence leaf photosynthesis, causes plant early ageing, has a strong impact on that fruit is substantial, output and storage property, and the diseased plant fruit is very easily rotten.
Fluorine ring azoles, english common name Epoxiconazole.Triazole bactericidal agent; Have interior suction, protection and therapeutic action concurrently; It is C-14 demethylation enzyme inhibitor in the sterol biosynthesis; To Ascomycetes, Basidiomycetes with comprise that half of Alternaria, Ascochyta, the mould genus of tail spore, Colletotrichum, ball Cuo Pseudomonas, Phoma, Ramularia, Septoria, Venturia know sickly, Erysiphaceae, Uredinales and some are planted and are passed pathogen lasting protection and therapeutic action are arranged.Suitable crop wheat, barley, paddy rice, beet, rape, legume, vegetables, grape and apple etc.To under the crop safety RD to crop safety, no poisoning.
Fluoxastrobin, english common name Azoxystrobin.Methoxy acrylic bactericide.The mitochondrial respiratory inhibitor promptly passes through to shift to the electronics of cromoci at CYB cl, thereby suppresses mitochondrial breathing.The bacterial strain that 14-demethylation enzyme inhibitor, benzamides, dicarboxylic dihydrazides amine and benzimidazole is produced resistance is effective.Have protection, root out, infiltration, systemic activity.Suppress spore germination and mycelial growth and produce spore always.
Being mixed of different pesticide species is the common methods of the agriculture resistance disease of control.Through the formulation of pesticide screening, filter out rational prescription, can effectively improve actual control efficiency, reduce dosage, reduce cost, delay the generation of disease drug resistance, be the important means of the disease comprehensive regulation.Fluorine ring azoles and Fluoxastrobin are mixed sigatoka are had obvious synergistic effect, can effectively prevent and treat sigatoka, and this report is not arranged at present as yet.
Summary of the invention
It is long to the purpose of this invention is to provide a kind of efficient, low toxicity and lasting period, helps the Synergistic bactericidal composition that contains fluorine ring azoles and Fluoxastrobin of comprehensive regulation sigatoka.
The technical scheme that the present invention adopts is: a kind of Synergistic bactericidal composition that contains fluorine ring azoles and Fluoxastrobin, active ingredient are fluorine ring azoles and Fluoxastrobin, and the ratio of weight and number of fluorine ring azoles and Fluoxastrobin is 10:1～1:10.
Synergistic bactericidal composition of the present invention can be processed into agricultural chemicals and use upward acceptable any one formulation according to well known to a person skilled in the art method, and preferred formulation is suspending agent, water dispersible granules, wetting powder.
Synergistic bactericidal composition of the present invention also contains the required auxiliary element of preparation pesticidal preparations; Comprise one or more mixing in solvent, emulsifier, wetting agent, stabilizing agent, dispersant, thickener, antifoaming agent, antifreezing agent, disintegrant, binding agent, filler, filler, the medium etc.; Be known substance; Be various auxiliary agents commonly used in the pesticidal preparations, can change to some extent, do not have special qualification according to different situations.
Synergistic bactericidal composition of the present invention has good control efficiency to sigatoka.
Synergistic bactericidal composition of the present invention is when preventing and treating sigatoka, and the general method of spraying that adopts is used, and also can adopt agricultural to go up other operation techniques of using as required.
Composition pesticide provided by the invention has following beneficial effect.
1, bactericidal composition provided by the invention; In certain ratio range, show obvious synergistic effect, the control efficiency of composition is significantly improved than single agent, has reduced the using dosage of agricultural chemicals; Reduced drug cost, reduced the adverse effect of agricultural chemicals ecotope.
2, the combination of two kinds of bactericide of the present invention has enlarged fungicidal spectrum.
3, two of bactericidal composition provided by the invention kinds of active ingredient mechanism of action have nothing in common with each other, and can overcome the long-term single shortcoming that makes with medicament be easy to generate resistance, prolong the service life of medicament, and the comprehensive regulation has significance to disease.
4, bactericidal composition of the present invention is to crop safety.
Embodiment
In order to understand essence of the present invention better, be described further through following examples, but the present invention is not limited to these embodiment.In these embodiment, unless otherwise indicated, all percentages all are weight percentage.
Biologicall test embodiment 1:Fluorine ring azoles and Fluoxastrobin are mixed to sigatoka germ Toxicity Determination.
Material is selected: pick up from the sick leaf of sigatoka in field, and subsequent use after the separation and purification of laboratory.
Test method: with reference to NY/T 1156.6-2006.Promptly take by weighing 96.8% epoxiconazole raw drug of certain mass earlier; The former medicine of 95% Fluoxastrobin; The Tween 80 aqueous solution with 0.1% after adding acetone fully dissolves dilutes; Be mixed with single agent mother liquor respectively, according to the purpose that is mixed following serial proportioning (10:1/5:1/1:1/1:5/1:10) be set, each proportioning is provided with 5 concentration gradients.
Logarithm value with drug concentration (μ g/ml) is independent variable x; Probit value with inhibiting rate is dependent variable y; Set up the virulence regression equation formula respectively, adopt the EC50 (95% confidence limit) of the single agent of DPS computed in software and each proportioning mixture and adopt the abundant method of Sun Yun to calculate the co-toxicity coefficient (CTC) of mixture.
According to the NY/T 1156.6-2006 bactericide synergy criteria for classifying: co-toxicity coefficient (CTC)>=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80＜co-toxicity coefficient (CTC)＜120 shows as summation action.
Table 1, fluorine ring azoles and Fluoxastrobin and different proportioning are to the Toxicity Determination result of sigatoka bacterium (a certain pathogenic strain).
Result of the test is seen table 1.Can find out that from result of the test fluorine ring azoles and Fluoxastrobin are between 10:1～1:10 at ratio of weight and number, co-toxicity coefficient (CTC value) promptly all shows obvious synergistic effect all greater than 120.Fluorine ring azoles and Fluoxastrobin are mixed and have reasonability and feasibility.
FORMULATION EXAMPLE 1(25% fluorine ring azoles Fluoxastrobin suspending agent).
Fluorine ring azoles 12.5%, Fluoxastrobin 12.5%, emulsifier AEO 4%, calcium dodecyl benzene sulfonate 5%, triphenyl vinyl phenol polyoxyethylene poly-oxygen propylene aether 3%, antifoaming agent epoxidized soybean oil 1%, antifreezing agent glycerine 0.5%, surplus is a water.Above-mentioned prescription is pulverized in proportion in advance, adds in the sand mill and grinds, and allotment makes 25% fluorine ring azoles Fluoxastrobin suspending agent after high shear mixing.
FORMULATION EXAMPLE 2(20% fluorine ring azoles Fluoxastrobin wetting powder).
Fluorine ring azoles 7.5%, Fluoxastrobin 12.5%, wetting agent draw back powder 3%, dispersant naphthalenesulfonate formaldehyde condensation compound 6%, filler talcum powder 15%, surplus is a filler kaolin.Above-mentioned prescription got in the blender after the coarse crushing in proportion mix, behind comminution by gas stream, promptly make 20% fluorine ring azoles Fluoxastrobin wetting powder again.
FORMULATION EXAMPLE 3(50% fluorine ring azoles azoxystrobin water dispersible granule).
Fluorine ring azoles 15%, Fluoxastrobin 35%, wetting agent lauryl sodium sulfate 6%, dispersant polycarboxylate 4%, disintegrant sodium chloride 2%, binding agent polyethylene glycol 3%, stabilizing agent soluble starch 3%, surplus is a carrier kaolin.Dry pulverization process, granulation, drying, screening make 50% fluorine ring azoles azoxystrobin water dispersible granule in proportion with above-mentioned prescription.
Field efficacy embodiment 1:Fluorine ring azoles and Fluoxastrobin are mixed to the field control effectiveness test of sigatoka.
Supply the reagent agent: (1) 25% fluorine ring azoles Fluoxastrobin suspending agent suspending agent (12.5% fluorine ring azoles: 12.5% Fluoxastrobin).
(2) 20% fluorine ring azoles Fluoxastrobin wetting powder (7.5% fluorine ring azoles: 12.5% Fluoxastrobin).
(3) 50% fluorine ring azoles azoxystrobin water dispersible granule (15% fluorine ring azoles: 35% Fluoxastrobin).
(4) 12.5% epoxiconazole suspension concentrates (contrast medicament).
(5) 25% Fluoxastrobin suspending agents (contrast medicament).
This test is carried out in cities and towns, precipice, Sanya, Hainan Province, converts the dispenser of water even spraying in the sigatoka their early stage, dispenser twice altogether, dispenser 7 days at interval, and 7 days, 14 days investigation prevention effects behind the last medicine, result of the test is seen table 2.
Table 2, fluorine ring azoles and azoxystrobin compound are to the field control effectiveness test result of sigatoka.
Can be found out that by table 2 bactericidal composition of fluorine ring azoles of the present invention and azoxystrobin compound has good control efficiency to sigatoka, the preventive effect of 7 days and 14 days all reaches more than 92% behind the medicine.The quick-acting of bactericidal composition of the present invention and lasting effect all are superior to contrasting single agent.Simultaneously, the use of Synergistic bactericidal composition of the present invention has improved actual control efficiency, has reduced drug cost, delays the generation of disease drug resistance, has also reduced the harmful effect of agricultural chemicals to environment simultaneously.
Claims (3)
1. Synergistic bactericidal composition that contains fluorine ring azoles and Fluoxastrobin, it is characterized in that: active ingredient is fluorine ring azoles and Fluoxastrobin, the ratio of weight and number of fluorine ring azoles and Fluoxastrobin is 10:1～1:10.
2. a kind of Synergistic bactericidal composition that contains fluorine ring azoles and Fluoxastrobin according to claim 1; It is characterized in that: fluorine ring azoles and azoxystrobin compound; Be processed into agricultural chemicals and use upward acceptable any one formulation, preferred formulation is suspending agent, water dispersible granules or wetting powder.
3. a kind of Synergistic bactericidal composition that contains fluorine ring azoles and Fluoxastrobin according to claim 1 and 2 is characterized in that: be used to prevent and treat sigatoka.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103684979A CN102405912A (en) | 2011-11-20 | 2011-11-20 | Synergistic sterilization composition containing epoxiconazole and azoxystrobin |
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| CN2011103684979A CN102405912A (en) | 2011-11-20 | 2011-11-20 | Synergistic sterilization composition containing epoxiconazole and azoxystrobin |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102047890A (en) * | 2010-12-14 | 2011-05-11 | 弥华锋 | Sterilization composition containing Azoxystrobin and Epoxiconazole |
| CN102150658A (en) * | 2010-12-06 | 2011-08-17 | 北京颖新泰康国际贸易有限公司 | Bactericide composition and preparation and application thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102150658A (en) * | 2010-12-06 | 2011-08-17 | 北京颖新泰康国际贸易有限公司 | Bactericide composition and preparation and application thereof |
| CN102047890A (en) * | 2010-12-14 | 2011-05-11 | 弥华锋 | Sterilization composition containing Azoxystrobin and Epoxiconazole |
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Application publication date: 20120411 |