CN104012555A - Agricultural sterilization composition - Google Patents
Agricultural sterilization composition Download PDFInfo
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- CN104012555A CN104012555A CN201410290872.6A CN201410290872A CN104012555A CN 104012555 A CN104012555 A CN 104012555A CN 201410290872 A CN201410290872 A CN 201410290872A CN 104012555 A CN104012555 A CN 104012555A
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- prothioconazoles
- polyoxin
- active ingredient
- bactericidal composition
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Abstract
The invention discloses an agricultural sterilization composition, which comprises effective ingredients of prothioconazole and polyoxins at a weight ratio of (50:1)-(1:50), and the balance of auxiliary ingredients which are allowed for being used in a pesticide and can be accepted. The sterilization composition disclosed by the invention can be prepared into an emulsion in water, a suspension, a microcapsule suspension, missible oil, wettable powder, seed treatment dispersable powder, granules, water aqua or water dispersible granules by adopting a known method. The prothioconazole and the polyoxins are compound in a certain proportion, thus the agricultural sterilization composition has a remarkable synergism, and is mainly used for preventing and controlling cucumber powdery mildew and rice sheath blight.
Description
Technical field
The invention belongs to agriculture chemical compounding technical field, relate to a kind of agricultural bactericidal composition, the application of especially a kind of agricultural bactericidal composition containing prothioconazoles and control corps diseases thereof.
Background technology
Prothioconazoles, english common name: prothioconazole, molecular formula: C
14h
15cl
2n
3oS, the triazolinthione series bactericidal agent of Shi You Bayer Cropscience Co.,Ltd exploitation, is ergosterol biosynthesis inhibitor.There is stronger interior suction, protection, treat and root out activity, and the lasting period is long, fungicidal spectrum is wide, be mainly used in preventing and treating the numerous diseases on cereal, wheat class, beans, beet and field vegetables crop.
Current chemical control is the key measure of control plant pest, is facing disease, worm, grass, the large Emergency time occurring of evil, or even unique effective measures, but solely uses for a long time certain farm chemical ingredients very easily to produce resistance.
Different pesticide active ingredients is combined, the obvious formula of synergistic effect can improve preventive effect greatly, reduce dosage, reduce use cost, residue of pesticide and the pollution of minimizing to environment, can also delay pathogen and produce resistance, be to solve a kind of quick and effective approach that current single use agricultural chemicals produces resistance and the high problem of drug cost simultaneously.
Summary of the invention
The object of the invention is to: the bactericidal composition of production and application in a kind of applicable agricultural is provided, and contributes to reduce dosage, delay pathogen and produce resistance and reduce use cost.
For overcoming the deficiencies in the prior art, inventor tests by a large amount of compound screenings, after finding that prothioconazoles and polyoxin are composite with certain proportion, powdery mildew of cucumber and rice sheath blight disease is had to obvious synergistic effect.
Polyoxin, english common name: polyoxin, molecular formula: C
23h
32n
6o
14, be the metabolite that streptomyces aureus produces, belong to broad-spectrum antibiotics series bactericidal agent.In having preferably, inhale conduction, by disturbing the chitinous biosynthesis of germ cell wall, make somatic cells wall can not carry out biosynthesis and cause germ dead.The mechanism of action is different from prothioconazoles.
Technical solution of the present invention is: a kind of agricultural bactericidal composition, it is characterized in that active ingredient is prothioconazoles and polyoxin, and the mass ratio of two active ingredients is 50:1～1:50, preferred mass is than being 20:1～1:20.
Above-mentioned active component prothioconazoles, polyoxin are all bactericide well known in the art, can buy by various commercial channel.
In bactericidal composition of the present invention, the mass accumulation percentage composition of active ingredient is 2%～82%, and all the other are the auxiliary element that solvent, auxiliary agent, carrier and other are of value to active ingredient stable and drug effect performance in preparation.All auxiliary elements are all conventional in pesticidal preparations or permission is used, and are not particularly limited, and concrete composition and consumption require to determine by simple experiment according to formula.
Bactericidal composition of the present invention can be prepared into by known method any one formulation that is applicable to agricultural use, and formulation has aqueous emulsion, suspending agent, microcapsule suspending agent, missible oil, granule, wetting powder, seed treatment to dispersible pulvis, aqua or water dispersible granules preferably.
Composition described in the invention can provide with finished product preparation form, and in composition, each material mixes; Also can provide with single dose combining form, before using, in bucket or tank, directly in described ratio, mix, then be diluted to required concentration.
Bactericidal composition of the present invention can, for preventing and treating the numerous diseases on cereal, wheat class, beans, beet and field vegetables crop, be particularly useful for preventing and treating powdery mildew of cucumber and rice sheath blight disease.Composition of the present invention can be used by common method, and as seed treatment, fill with root, spray, spread fertilizer over the fields or be fuming, its amount of application is determined with weather condition, crop growth phase and disease occurrence degree.
Compared with prior art, the beneficial effect that the present invention produces is: (1) composition synergistic effect is obvious, and preventive effect is compared and significantly improved with single dose; (2) after drug effect improves, reduce field dosage and use cost, reduced residue of pesticide and environmental pollution; (3) composition is comprised of the active ingredient of different mechanism of action, and action site increases, and is conducive to overcome and delays germ produce resistance.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, the present invention describes with following specific embodiment, but the present invention is limited to absolutely not these examples.
The pesticide active ingredient of different types of structure being carried out composite, is effective measures for the upper resistance germ of current development novel pesticide preparation and control agricultural.The agricultural chemicals of different cultivars shows three kinds of type of action after mixing conventionally, and summation action, synergistic effect and antagonism, act on but which kind of is specially, and must just can know by lot of experiments.Composite rear synergy is significantly filled a prescription, and can improve actual control efficiency, reduces dosage, and contribute to delay germ and produce resistance, be the important means of integrated control disease.
Inventor is by a large amount of screening tests, finds prothioconazoles and polyoxin is composite that powdery mildew of cucumber and rice sheath blight disease are had to significant synergistic function, and is not only the simple addition (referring to biologicall test example) of two kinds of medicaments.
Biologicall test example 1: the composite Toxicity Determination to powdery mildew of cucumber bacterium of prothioconazoles and polyoxin
Subjects: powdery mildew of cucumber bacterium (Sphaerotheca fulignea), pick up from field, in the indoor cultivation of artificial climate.
Test method: with reference to the agricultural industry criteria > > of the < < People's Republic of China (PRC) (farm-chemical indoor determination test rule bactericide NY/T1156.11-2008 and NY/T1156.6-2006), adopt pot-culture method.
Long 2 the complete true leaves of selection, the cucumber seedling that growing way is consistent, cut growing point.Every processing 5 basin cucumber seedlings, repeat for 5 times.With marking pen, write tag number, insert in potted plant seedling, discharge, is for experiment according to the order of sequence.After processing 24h, spraying inoculates the conidial suspension (spore concentration 1 * 10 of cucumber powdery mildew fungus
5individual spore/ml).Postvaccinal examination material moves in greenhouse, and temperature is 20 ℃-24 ℃, and 7d backsight blank incidence carries out classification investigation.Test is not established and is made blank containing the processing of medicament.
According to the valid density logarithm value of each test medicine and corresponding preventive effect probability value, do regression analysis, obtain concentration EC in the inhibition of each medicament
50, 90% inhibition concentration EC
90and 95% confidence limit.According to the abundant method of Sun Yun, calculate the toxicity index of each medicament and the co-toxicity coefficient of mixture (CTC value).
Actual measurement toxicity index (ATI)=(standard medicament EC
50/ reagent agent EC
50) * 100
The percentage composition of B in percentage composition+B medicament toxicity index * mixture of A in theoretical toxicity index (TTI)=A medicament toxicity index * mixture
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] * 100
When CTC≤80, composition performance is for antagonism, and as 80 < CTC < 120, composition performance is for summation action, and when CTC >=120, composition performance is synergistic effect.Joint toxicity measuring the results are shown in Table 1.
The composite Toxicity Determination result to powdery mildew of cucumber bacterium of table 1 prothioconazoles and polyoxin
In table 1, result shows, prothioconazoles and polyoxin between proportioning 50:1～1:50 time, have synergistic effect to powdery mildew of cucumber bacterium, and co-toxicity coefficient is all more than 120, especially when proportioning is between 20:1～1:20, synergistic effect is (co-toxicity coefficient is greater than 160) the most obviously.
Biologicall test example 2: the composite Toxicity Determination to Rhizoctonia solani Kuhn of prothioconazoles and polyoxin
Subjects: Rhizoctonia solani Kuhn (Rhizoctonia solani Kuhn), is collected in field, through the bacterial classification of laboratory separation and 3 switching rejuvenation.
Test method: with reference to < < farm-chemical indoor determination test rule NY/T1156.2-2006 and NY/T1156.6-2006 > >, adopt growth rate method (Plating).On the basis of preliminary experiment, on aseptic operating platform, according to test, process the sterilising medium melting in advance is quantitatively placed in aseptic conical flask, from low concentration to high concentration, getting successively 5ml liquid joins respectively the hot medium of 45ml (PDA medium is housed, 45-50 ℃) in conical flask, after shaking up, pour rapidly diameter 90mm glass culture dish into, each culture dish is poured band medicine medium 10ml into.Level is standing, makes flat board after cooling.Five repetitions of each concentration.Not contain the processing of medicament, make blank.
By cultured pathogen, under aseptic condition, with the sterilizing card punch of diameter 5mm, from colony edge, cut bacterium cake, with inoculator by pure culture biscuits involvng inoculation in the dull and stereotyped central authorities of pastille, by facing down and medium laminating of having mycelia, cover ware lid.Above all operations all carries out sterile working at superclean bench.
After processing, be placed in the constant temperature aseptic culture case of 26 ± 0.5 ℃ and cultivate, after 2d, take out.Adopt right-angled intersection method to measure respectively the colony diameter (YimmWei unit) that each is processed, calculate the mean value of colony diameter.With the valid density logarithm value of each test medicine and corresponding preventive effect probability value, do regression analysis, obtain concentration EC in the inhibition of each medicament
50, 90% inhibition concentration EC
90and 95% confidence limit.According to the abundant method of Sun Yun, calculate the toxicity index of each medicament and the co-toxicity coefficient of mixture (CTC value).
Co-toxicity coefficient computational methods are with above-described embodiment 1.
Joint toxicity measuring the results are shown in Table 2.
The composite Toxicity Determination result to Rhizoctonia solani Kuhn of table 2 prothioconazoles and polyoxin
In table 2, result shows, prothioconazoles and polyoxin between proportioning 50:1～1:50 time, have synergistic effect to Rhizoctonia solani Kuhn, and co-toxicity coefficient is all more than 120, especially when proportioning is between 20:1～1:20, synergistic effect is (co-toxicity coefficient is greater than 160) the most obviously.
The present composition can be prepared into by known method any one formulation that is applicable to agricultural use, and reasonable formulation has aqueous emulsion, suspending agent, microcapsule suspending agent, missible oil, granule, wetting powder, seed treatment to dispersible pulvis, aqua or water dispersible granules.
The following stated is only the good embodiment of the present invention, only in order to explain the present invention, can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that all any modifications of making within the spirit and principles in the present invention, be equal to replacement and improvement etc., within all should being included in protection scope of the present invention.In all formulas of the embodiment of the present invention, percentage is mass percent, and the amount of active ingredient is that industrial goods conversion is the amount of the sterling of 100% content.
Wetting powder embodiment
Pesticide activity component, various auxiliary agent and filler etc. are fully mixed in the ratio of formula, after ultra-fine pulverizer disintegrating, obtain wetting powder product.
FORMULATION EXAMPLE 1:76.5% prothioconazoles polyoxin wetting powder
Formula forms: active ingredient prothioconazoles 75%, and active ingredient polyoxin 1.5%, lauryl sodium sulfate (wetting agent) 5%, sodium lignin sulfonate (dispersant) 5%, kaolin (filler) complements to 100%.
FORMULATION EXAMPLE 2:82% prothioconazoles polyoxin wetting powder
Formula forms: active ingredient prothioconazoles 80%, active ingredient polyoxin 2%, lauryl sodium sulfate (wetting agent) 3%, naphthalene sulfonate (diffusant) 3%, sodium lignin sulfonate (dispersant) 5%, kaolin (filler) complements to 100%.
Suspending agent embodiment
Each components such as pesticide activity component, dispersant, wetting agent, thickener, defoamer, preservative, antifreeze and water are mixed in the ratio of formula, after grinding and/or high speed shear, obtain suspending agent product.
FORMULATION EXAMPLE 3:31% prothioconazoles polyoxin suspending agent
Formula forms: active ingredient prothioconazoles 30%, active ingredient polyoxin 1%, methyl naphthalene sulfonate formaldehyde condensate (wetting agent) 10%, xanthans (thickener) 1%, 20% aqueous emulsion of dimethyl polysiloxane fluid (defoamer) 0.4%, sodium lignin sulfonate (dispersant) 3%, glycerine (antifreeze) 4%, Sodium Benzoate (preservative) 0.25%, water (carrier) complements to 100%.
Formulation Example 4:42% prothioconazoles polyoxin suspending agent
Formula forms: active ingredient prothioconazoles 40%, active ingredient polyoxin 2%, calcium lignosulfonate (dispersant) 3.5%, sodium methylene bis-naphthalene sulfonate (dispersant) 2%, pulls open powder (wetting agent) 1%, 20% aqueous emulsion of dimethyl polysiloxane fluid (defoamer) 0.4%, ethylene glycol (antifreezing agent) 4%, xanthans (thickener) 0.12%, Sodium Benzoate (preservative) 0.12%, water (carrier) surplus.
Aqua embodiment
Pesticide activity component, solvent, emulsifier, carrier are added in compounding kettle according to sequencing, stir and make aqua product.
Formulation Example 5:11% prothioconazoles polyoxin aqueous solution
Formula forms: active ingredient prothioconazoles 10%, active ingredient polyoxin 1%, isopropyl alcohol (solvent) 3%, polyoxyethylene nonylphenol ether (emulsifier) 2%, phenethyl phenol polyethenoxy polyethenoxy ether (emulsifier) 2%, water (carrier) complements to 100%.
Missible oil embodiment
Formulation Example 6:24% prothioconazoles polyoxin missible oil
Formula forms: active ingredient prothioconazoles 20%, active ingredient polyoxin 4%, fatty alcohol-polyoxyethylene ether (emulsifier) 8%, sorbitan monooleate APEO (emulsifier) 6%, calcium dodecyl benzene sulfonate (emulsifier) 7%, dimethylbenzene (solvent) complements to 100%.
Microcapsule suspending agent embodiment
Pesticide activity component, solvent, capsule skin monomer are mixed mutually, enter compounding kettle and stir, make oil phase, then the encystation that solidifies after shearing dispersion mixed with water, make microcapsule suspending agent product.
Formulation Example 7:2% prothioconazoles polyoxin microcapsule suspending agent
Formula forms: active ingredient prothioconazoles 1%, active ingredient polyoxin 1%, solvent naphtha S-200 (solvent) 10%, coconut oleoyl amine (capsule skin monomer) 5%, 10% maleic anhydride styrene mother liquor (capsule skin monomer) 1.2%, urea-formaldehyde resin aqueous solution (capsule skin monomer) 2.5%, glacial acetic acid (capsule skin monomer) 0.5%, water (carrier) complements to 100%.
Water dispersible granules embodiment
Pesticide activity component, dispersant, wetting agent, disintegrant and filler are mixed in the ratio of formula, through air-flow crushing, become wetting powder, then add a certain amount of water mixing extruder grain, after drying screening, obtain water dispersible granules product.
Formulation Example 8:60% prothioconazoles polyoxin water dispersible granules
Formula forms: active ingredient prothioconazoles 10%, active ingredient polyoxin 50%, Negel (dispersant) 5%, sodium lignin sulfonate (dispersant) 5%, lauryl sodium sulfate (wetting agent) 2%, ammonium sulfate (disintegrant) 5%, precipitated calcium carbonate (filler) complements to 100%.
Formulation Example 9:41% prothioconazoles polyoxin water dispersible granules
Formula forms: active ingredient prothioconazoles 1%, active ingredient polyoxin 40%, polycarboxylate (dispersant) 5%, sodium lignin sulfonate (dispersant) 10%, lauryl sodium sulfate (wetting agent) 4%, ammonium sulfate (disintegrant) 15%, kaolin (filler) complements to 100%.
Granule embodiment
After carrier, adsorbent are mixed, pulverize, sieve, obtain the particle of qualified particle size, then will after pesticide activity component, emulsifier and solvent, join in the particle having crushed, granule product.
Formulation Example 10:11% prothioconazoles polyoxin granule
Formula forms: active ingredient prothioconazoles 1%, active ingredient polyoxin 10%, phenethyl phenol polyethenoxy ether polyethenoxy ether (emulsifier) 4%, white carbon (adsorbent) 3%, dimethylbenzene (solvent) 2%, brick slag (carrier) surplus.
Aqueous emulsion embodiment
Each components such as pesticide activity component, solvent, emulsifier, antifreezing agent, defoamer and deionized water, in ratio and the sequencing mixing and stirring of formula, are obtained to aqueous emulsion product after high speed shear.
Formulation Example 11:21% prothioconazoles polyoxin aqueous emulsion
Formula forms: active ingredient prothioconazoles 1%, active ingredient polyoxin 20%, heavy aromatics naphtha Solvesso200 (solvent) 10%, phenethyl phenol polyethenoxy polyethenoxy ether (emulsifier) 5%, calcium dodecyl benzene sulfonate (emulsifier) 3%, 20% aqueous emulsion of dimethyl polysiloxane fluid (defoamer) 0.25%, ethylene glycol (antifreeze) 3%, water (carrier) complements to 100%.
Formulation Example 12:31% prothioconazoles polyoxin aqueous emulsion
Formula forms: active ingredient prothioconazoles 1%, active ingredient polyoxin 30%, heavy aromatics naphtha Solvesso200 (solvent) 5%, phenethyl phenol polyethenoxy polyethenoxy ether (emulsifier) 3.5%, calcium dodecyl benzene sulfonate (emulsifier) 5%, 20% aqueous emulsion of dimethyl polysiloxane fluid (defoamer) 0.4%, ethylene glycol (antifreeze) 4%, water (carrier) complements to 100%.
Seed treatment dispersibles pulvis embodiment
Pesticide activity component, various auxiliary agent and filler etc. are fully mixed in the ratio of formula, after ultra-fine pulverizer disintegrating, obtain seed treatment and dispersible powder product.
Formulation Example 13:51% prothioconazoles polyoxin seed treatment dispersibles pulvis
Formula forms: active ingredient prothioconazoles 1%, active ingredient polyoxin 50%, lauryl sodium sulfate (wetting agent) 4%, sodium lignin sulfonate (dispersant) 10%, naphthalene sulfonate (diffusant) 7%, ammonium sulfate (filler) complements to 100%.
In order to further illustrate the advantage of the technology of the present invention formula scheme, the present invention is illustrated with following concrete field trial embodiment.
Field trial embodiment 1: the composite powdery mildew of cucumber field control effectiveness test of preventing and treating of prothioconazoles and polyoxin
Tested in June, 2013 and carry out in Qingyuan City Qingxin County, Guangdong Province, experimental field powdery mildew of cucumber over the years occurs serious.
Experimental scheme: test medicine processing, using dosage and preventive effect refer to table 3, prepare medicament by experimental concentration, every processing repeats for 4 times, community area 15m
2, Gong44Ge community, random district group is arranged.
Test method: 1) spraying: start dispenser in powdery mildew of cucumber their early stage, execute once for 7 days at interval, dispenser is 3 times altogether, establishes clear water and is treated to blank.2) soil treatment: adopt ditch spread mode before transplanting, reagent agent is mixed respectively to fine earth according to every community dosage, every community fine earth 1.5kg, evenly spreads fertilizer over the fields in ditch, then covers shallow soil, gets final product field planting.
Investigation method: 5 samplings of every community diagonal, often click 2 strains totally 10 strains, investigation complete stool blade.
The composite powdery mildew of cucumber field control effectiveness test result of preventing and treating of table 3 prothioconazoles and polyoxin
Field trial embodiment 2: the composite rice sheath blight disease field control effectiveness test of preventing and treating of prothioconazoles and polyoxin
Tested in May, 2013 and carry out in Xinfeng County, Shaoguan City of Guangdong Province, experimental field rice sheath blight disease over the years occurs serious.Test medicine processing, using dosage and preventive effect refer to table 4, and every processing repeats for 4 times, community area 20m
2, Gong44Ge community, random district group is arranged.Adopt conventional spray-on process or broadcast application, when rice tillering latter stage to shooting stage paddy rice first meeting scab, carry out dispenser for the first time, according to disease development, every dispenser again in 7～10 days, dispenser was 3 times altogether, separately establishes clear water and is treated to blank.Withered dead ears show disease phase investigation prevention effect.
The composite rice sheath blight disease field control effectiveness test result of preventing and treating of table 4 prothioconazoles and polyoxin
Above-mentioned powdery mildew of cucumber and rice sheath blight disease field control effectiveness test result all show, after prothioconazoles and polyoxin are composite with certain proportion, effective dose is all starkly lower than the simple addition of two kinds of single dose effective doses, and the preventive effect after composite is obviously better than single dose preventive effect, illustrate that technical scheme of the present invention is practicable.
Claims (5)
1. an agricultural bactericidal composition, is characterized in that: the active ingredient of described bactericidal composition is prothioconazoles and polyoxin, and both mass ratioes are 50:1～1:50.
2. bactericidal composition according to claim 1, is characterized in that: the mass ratio of prothioconazoles and polyoxin is 20:1～1:20.
3. bactericidal composition according to claim 1, is characterized in that: the gross mass percentage composition of active ingredient is 2%～82%.
4. bactericidal composition according to claim 1 and 2, is characterized in that: the formulation of described bactericidal composition is that aqueous emulsion, suspending agent, microcapsule suspending agent, missible oil, granule, wetting powder, seed treatment dispersible pulvis, aqua or water dispersible granules.
5. described in claim 1, bactericidal composition is applied to prevent and treat the purposes of powdery mildew of cucumber and rice sheath blight disease.
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|---|---|---|---|
| CN201410290872.6A CN104012555A (en) | 2014-06-25 | 2014-06-25 | Agricultural sterilization composition |
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|---|---|---|---|
| CN201410290872.6A CN104012555A (en) | 2014-06-25 | 2014-06-25 | Agricultural sterilization composition |
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ID=51429786
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106889077A (en) * | 2017-05-04 | 2017-06-27 | 佛山市瑞生通科技有限公司 | Bactericidal composition and its application containing fen second mycin and prothioconazoles |
| CN114097800A (en) * | 2020-08-31 | 2022-03-01 | 沈阳中化农药化工研发有限公司 | Fungicidal composition of prothioconazole and wuyiencin and application thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106889077A (en) * | 2017-05-04 | 2017-06-27 | 佛山市瑞生通科技有限公司 | Bactericidal composition and its application containing fen second mycin and prothioconazoles |
| CN106889077B (en) * | 2017-05-04 | 2018-08-17 | 佛山市瑞生通科技有限公司 | Bactericidal composition containing pheno second mycin and prothioconazoles and its application |
| CN114097800A (en) * | 2020-08-31 | 2022-03-01 | 沈阳中化农药化工研发有限公司 | Fungicidal composition of prothioconazole and wuyiencin and application thereof |
| CN114097800B (en) * | 2020-08-31 | 2023-01-24 | 沈阳中化农药化工研发有限公司 | Fungicidal composition of prothioconazole and wuyiencin and application thereof |
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Application publication date: 20140903 |