CN104206396A - Bactericidal composition containing penconazole and captan and application - Google Patents
Bactericidal composition containing penconazole and captan and application Download PDFInfo
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- CN104206396A CN104206396A CN201410495968.6A CN201410495968A CN104206396A CN 104206396 A CN104206396 A CN 104206396A CN 201410495968 A CN201410495968 A CN 201410495968A CN 104206396 A CN104206396 A CN 104206396A
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Abstract
The invention relates to a bactericidal composition containing penconazole and captan and application and belongs to the technical field of pesticides. The weight ratio of the penconazole to the captan is 40:1-1:40, and the weights of the penconazole and the captan account for 1%-90% of the total weight of the composition. A proper amount of functional additives and carriers are added into the composition to prepare a suspending agent, water dispersible granules, wettable powder, missible oil, concentrate emulsion, micro-emulsion and the like. The composition is reasonable in ingredient, good in bactericidal effect and low in cost, the activity and the bactericidal effect are not achieved by simply superposing activities of all ingredients. Compared with the prior art, the bactericidal composition has remarkable synergistic effect except the remarkable bactericidal effect, can retard the resistance, is low in remaining preparation quantity, free of pollution on crops and good in safety, meets the safety requirements of pesticide preparations and has remarkable preventing and control effects on anthracnose, powdery mildew, white rot, downy mildew, gray mold and the like of fruit trees and vegetables.
Description
Technical field
The invention belongs to technical field of pesticide, relate to bactericidal composition and using method thereof and application that a kind of main active is penconazole and captan.
Background technology
Penconazole: chemical name is: 1-[2-(2,4-dichlorophenyl) amyl group]-1H-1,2,4-triazole,
Former medicine is white crystal; having protection, treatment and the interior absorption triazole bactericidal agent of eradicant action concurrently, is sterol demethylation inhibitors, destroys and stop the biosynthesis of cell membrane important composition composition ergosterol of germ; cause cell membrane not formed, make germ dead.Owing to having absorption well, therefore can promptly by tissue resorption such as root of the crop, stem, leaves, and in conducted inside.Penconazole is specifically treated, protect, eradicant action.Be mainly used in the pathogenic bacteria of Erysiphaceae, Venturia and other spore Gammaproteobacteria, Basidiomycetes and the Fungi Imperfectis caused a disease prevented and treated on multiple fruit tree, vegetables and ornamental plants, the above-mentioned pathogen especially on pomaceous fruit tree, pumpkin, grape, strawberry, ornamental plants and vegetables.
Captan (captan), C9H8Cl3NO2S, chemical name: N-(trichloro-methylthio)-hexamethylene-4-alkene-1,2-dicarboximide; 1,2,3,6-tetrahydrochysene-N-(trichloro-methylthio) phthalimide.
Captan is a kind of broad-spectrum germicide come out nineteen fifty-three.Its mechanism of action mainly affects the metabolism of thalline pyruvic acid, has obvious inhibitory action to multiple enzyme, also can reduce the metabolism of phosphorus, reduces the content of adenosine triphosphate in thalline, and can stop the conidial bulk storage of some germs.Can be widely used in preventing and treating the multiple diseases that fruit tree, vegetables and various economic crops occur, effective to diseases such as cucumber anthracnose, downy mildew, fruit white rot of grape, powdery mildew of strawberry, early blight of tomato, potato late blight.
Penconazole and captan single dose Long-Time Service, easily make disease develop immunity to drugs, and causes the problem that dosage strengthens, imitation reduces, the lasting period shortens, be unfavorable for environment sustainable development.And the active ingredient of the different mechanism of action is carried out composite, be delay disease to produce the conventional method of resistance, and according to the effect in production application, judge this composite be synergy be synergistic effect or antagonism.Complex role is significantly filled a prescription, and can significantly improve preventive effect, greatly reduces the dosage of agricultural chemicals, can also expand fungicidal spectrum, improves germicidal efficiency.Present inventor has carried out series of studies and application test to penconazole and captan complex preparation, finds penconazole and captan is composite has notable synergistic effect.Active high, the lasting period is long, and safety is good, has good control efficiency to fruit white rot of grape, anthracnose, powdery mildew of strawberry, gray mold etc.
Summary of the invention
The object of the present invention is to provide a kind of component reasonable, synergistic effect is remarkable, and bactericidal effect is good, and drug cost is low, not easily produces resistance, pesticide sterilizing composite to crop safety.
Another object of the present invention is to provide above-mentioned composition preventing and treating the application on fruit white rot of grape, powdery mildew of strawberry.
In order to overcome the defect of existing unitary agent, technical scheme of the present invention solves like this:
Contain a bactericidal composition for penconazole and captan, wherein the weight ratio of penconazole and captan is 40 ︰ 1 ~ 1 ︰ 40.
The cumulative amount sum of wherein said penconazole and captan is 1% ~ 90% of described composition total weight, and the size of active component cumulant is also closely related with formulation, as the active component cumulant of microemulsion, be no more than 50%.
The present invention contains the agriculture bactericide composition of penconazole and captan, and the preparation formulation can prepared according to the method that technical field technical staff is known is water dispersible granules, wetting powder, suspending agent, aqueous emulsion, microemulsion, missible oil.
One of technical scheme of the present invention, described a kind of bactericidal composition containing penconazole and captan is microemulsion, and the percentage by weight of component is:
The concrete procedure of processing of this bactericidal composition microemulsion is: add in solvent by penconazole and the former medicine of captan, add the auxiliary agents such as emulsifier, stabilizing agent and synergist while stirring, finally be added to the water stirring, form transparent and homogeneous liquid, obtain the microemulsion of the present composition.
Technical scheme two of the present invention, described a kind of bactericidal composition containing penconazole and captan is water dispersible granules, and the percentage by weight of component is:
The concrete procedure of processing of this bactericidal composition water dispersible granules is: penconazole, captan and dispersant, wetting agent, disintegrant and filler are mixed by above-mentioned formula, pulverize with micro jet, through mediating, then add in fluidized-bed granulation dryer and carry out through sample analysis after granulation, drying, screening, the water dispersible granules of the bactericidal composition containing penconazole and captan obtained of the present invention.
Technical scheme three of the present invention, described a kind of bactericidal composition containing penconazole and captan is wetting powder, and the percentage by weight of component is:
The concrete procedure of processing of this bactericidal composition wetting powder is: by above-mentioned formula by penconazole and captan and the mixing of dispersant, wetting agent and filler, uniform stirring in stirred tank, mixing after airslide disintegrating mill, namely can be made into the wetting powder of the present composition.
Technical scheme four of the present invention, described a kind of bactericidal composition containing penconazole and captan is aqueous emulsion, and the percentage by weight of component is:
The concrete production stage of this aqueous emulsion is: first former medicine penconazole and captan, solvent and emulsifier, cosolvent are added together, make to be dissolved into oil phase equably: by part water, antifreeze, other the insecticides adjuvant such as antimicrobial mixes uniformly aqueous phase; While high-speed stirred, oil phase is added aqueous phase in a kettle., slowly add water until reach phase inversion point, open clipper and carry out high speed shear, and add remaining water, shear about half an hour, form the aqueous emulsion of oil-in-water type.The i.e. obtained aqueous emulsion containing the bactericidal composition of penconazole and captan.
Technical scheme five of the present invention, described a kind of bactericidal composition containing penconazole and captan is suspending agent, and the percentage by weight of component is:
The concrete production stage of this suspending agent is for first to mix other auxiliary agents, mix through high speed shear, add penconazole and captan, abrading-ball 2 ~ 3 hours in ball crusher, make a diameter all at below 5mm, the aqueous suspension formulations also having the bactericidal composition of penconazole and captan obtained of the present invention.
Described emulsifier is selected from any one or more mixtures formed with arbitrary proportion in calcium dodecyl benzene sulfonate and alkylphenol polyoxyethylene, sulfosuccinate, aliphatic acid polyethenoxy ether, polyoxyethylene nonylphenol ether, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy base ester, styrylphenol polyoxyethylene ether, polyoxyethylene aliphatic alcohol ether.
Described solvent is that any one or more in dimethylbenzene or biodiesel, isopropyl alcohol, ethanol, toluene, methyl alcohol, turpentine oil, diesel oil, n-butanol, dimethyl formamide, solvent naphtha, dimethyl sulfoxide (DMSO), water equal solvent are with mixed solvents of arbitrary proportion composition.
Described synergist refers to have and strengthens agent permeates power, wetting extended capability, knock down insect speed, improve the resistance of rainwater washing against power of agricultural chemicals, thus improve agricultural insecticide, a class safety of bactericidal effect, environmental protection, noresidue, nontoxic New-type adjuvant, any one in organic silicon pesticide synergist ZC-650 or organic silicon pesticide bleeding agent spreading agent Agrowet810c, agricultural organic silicon pesticide synergist Silwet408, azone optional.
Described dispersant be selected from poly-hydroxy acid salt, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkyl benzene sulfonate calcium salt, lignosulfonates, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, polyoxyethylene carboxylate, fatty acid glyceride APEO one or more.
Described wetting agent is selected from: one or more in calcium dodecyl benzene sulfonate, lauryl sodium sulfate, wetting and penetrating agent F, polyoxyethylene tri-styryl phosphenylic acid salt, Nekal BX, alkylnaphthalene sulfonate, spaonin powder, silkworm excrement.
Described disintegrant is selected from: one or more in urea, ammonium sulfate, aluminium chloride, citric acid, sodium bicarbonate.
Described thickener is selected from: one or more in xanthans, methylcellulose, CMC, hydroxyethylcellulose, Magnesiumaluminumsilicate, polyvinyl alcohol.
Described stabilizing agent is selected from: the one in sodium citrate, resorcinol.
Described antifreeze is selected from: one or more in ethylene glycol, propane diols, glycerine.
Described defoamer is selected from: silicone compound, silicone oil, C
10-20saturated fat acid compounds, in one or more.
Described emulsifying dispersant comprises: wetting agent, stabilizing agent, thickener, dispersant, defoamer and antifreezing agent etc.
Described antifreezing agent has methyl alcohol, ethanol, isopropyl alcohol, ethylene glycol, propane diols, diethylene glycol (DEG), butyl glycol ether, propandiol butyl ether.
Described filler is selected from: one or more in kaolin, white carbon, bentonite, attapulgite, starch, precipitated calcium carbonate.
The invention has the beneficial effects as follows:
1. two kinds of compound structures involved in the present invention, prove through test, mutual mixture can not produce conflict, can Synergistic, reduces dosage, reduces costs.And ZEN 90160 and Prochloraz or the composite of its salt are not yet reported.
2. the pathogen pair producing resistance still has very high drug effect, can delay drug-fast generation.
3. reduce the usage amount of agricultural chemicals, enhance the friendly to environment.
4. reduce Pesticide use amount, also reduce drug cost, enhance the market competitiveness of this formula.
Embodiment
In order to prevent and treat the bitter rot or anthracnose of grape, rice sheath blight disease, rice blast, wheat powdery mildew etc. in agricultural production, inventor has carried out mutual composite synergy research with ZEN 90160 and Prochloraz or its salt, and concrete grammar is:
Implementation of an application example one: penconazole and captan and composite to fruit white rot of grape Toxicity Determination
Test medicine provides by Jiangsu Province Lvdunzhibao Agriculture Chemical Experiment Co., Ltd
Embodiment 1 40% penconazole captan microemulsion (percentage by weight)
Embodiment 2 82% penconazole captan water dispersible granule (percentage by weight)
Embodiment 3 41% penconazole captan wetting powder (percentage by weight)
Embodiment 4 48% penconazole captan aqueous emulsion (percentage by weight)
Embodiment 5 36% penconazole captan suspending agent (percentage by weight)
Determine that after the effective inhibition concentration scope of each medicament, each medicament establishes 8 dosage process respectively by active constituent content through prerun, if clear water contrast.Carry out with reference to " farm-chemical indoor determination test rule bactericide ", adopt mycelial growth rate method to measure agricultural chemicals to the virulence of fruit white rot of grape.Measure colony diameter by right-angled intersection method after 6d, calculate each process net growth, mycelial growth inhibition rate.
Net growth (mm)=measurement colony diameter-5
Mycelial growth inhibition rate is converted into probit value (y), liquor strength (ug/ml) converts logarithm value (x) to, try to achieve virulence regression equation (y=a+bx) with method of least squares, and calculate the EC of often kind of medicament thus
50value.Calculate two medicament different ratio synergies ratio (SR) according to Wadley method, SR < 0.5 is antagonism, and 0.5≤SR≤1.5 are summation action simultaneously, and SR > 1.5 is synergistic effect.Computing formula is as follows:
Wherein: a, b are respectively penconazole and the ratio of captan shared by combination
A is penconazole
B is captan
Result of the test is as shown in table 1:
Table 1 penconazole and captan and the composite toxicity test analysis of results table to fruit white rot of grape thereof
As shown in Table 1, penconazole, captan are to the EC of fruit white rot of grape
50be respectively 0.9766mg/L and 1.0189mg/L.The virulence of captan is lower than the virulence of penconazole.In the scope of penconazole and captan proportioning 40 ︰ 1 ~ 1 ︰ 40, mixture ratio is all greater than 1.5, illustrates that penconazole and captan mixture in 40 ︰ 1 ~ 1 ︰ 40 scopes all shows synergistic effect.
Implementation of an application example two: penconazole and captan and the composite field control effectiveness test to fruit white rot of grape, powdery mildew of strawberry thereof
This experimental establishment is in the vineyard of white rabbit town one, Jurong City man of peasant household, and test medicine is researched and developed by Jiangsu Province Lvdunzhibao Agriculture Chemical Experiment Co., Ltd, provided.Contrast medicament 10% penconazole missible oil, 80% captan water dispersible granule are commercial.
Result of the test is as shown in table 2:
Table 2 penconazole and captan and compositely prevent and treat fruit white rot of grape, powdery mildew of strawberry field control effectiveness test
Note: in table, A is penconazole; B is captan
As can be seen from Table 2, penconazole and captan composite after can effectively preventing fruit white rot of grape, powdery mildew of strawberry, control efficiency is all better than the preventive effect of single dose.In test scope of medication, crop is had no adverse effects.
Claims (8)
1. contain a bactericidal composition for penconazole and captan, it is characterized in that the weight ratio of wherein penconazole and captan is 40 ︰ 1 ~ 1 ︰ 40.
2. a kind of bactericidal composition containing penconazole and captan according to claim 1, it is characterized in that the cumulative amount sum of wherein said penconazole and captan is 1% ~ 90% of described composition total weight, the size of active component cumulant is also closely related with formulation, as the active component cumulant of microemulsion, be no more than 50%.
3. a kind of bactericidal composition containing penconazole and captan according to claim 1, it is characterized in that for microemulsion, the percentage by weight of component is:
Penconazole 20 parts
Captan 20 parts
Solvent 10 parts
Emulsifier 5 parts
Stabilizing agent 15 parts
Synergist 5 parts
Water surplus adds to 100 parts.
4. a kind of bactericidal composition containing penconazole and captan according to claim 1, it is characterized in that for water dispersible granules, the percentage by weight of component is:
Penconazole 80 parts
Captan 2 parts
Dispersant 3 parts
Wetting agent 3 parts
Disintegrant 2 parts
Filler surplus adds to 100 parts.
5. a kind of bactericidal composition containing penconazole and captan according to claim 1, it is characterized in that for wetting powder, the percentage by weight of component is:
Penconazole 1 part
Captan 40 parts
Dispersant 10 parts
Wetting agent 10 parts
Filler surplus adds to 100 parts.
6. a kind of bactericidal composition containing penconazole and captan according to claim 1, it is characterized in that for aqueous emulsion, the percentage by weight of component is:
Penconazole 40 parts
Captan 8 parts
Emulsifier 18 parts
Solvent 6 parts
Stabilizing agent 5 parts
Antifreezing agent 2 parts
Defoamer 3 parts
Thickener 2 parts
Water surplus adds to 100 parts.
7. a kind of bactericidal composition containing penconazole and captan according to claim 1, it is characterized in that for suspending agent, the percentage by weight of component is:
Penconazole 6 parts
Captan 30 parts
Dispersant 10 parts
Antifreezing agent 5 parts
Thickener 0.2 part
Defoamer 0.8 part
Water surplus adds to 100 parts.
8. a kind of bactericidal composition containing penconazole and captan according to claim 1-7, is characterized in that described emulsifier is selected from any one or more mixtures formed with arbitrary proportion in calcium dodecyl benzene sulfonate and alkylphenol polyoxyethylene, sulfosuccinate, aliphatic acid polyethenoxy ether, polyoxyethylene nonylphenol ether, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy base ester, styrylphenol polyoxyethylene ether, polyoxyethylene aliphatic alcohol ether;
Described solvent is that any one or more in dimethylbenzene or biodiesel, isopropyl alcohol, ethanol, toluene, methyl alcohol, turpentine oil, diesel oil, n-butanol, dimethyl formamide, solvent naphtha, dimethyl sulfoxide (DMSO), water equal solvent are with mixed solvents of arbitrary proportion composition;
Described synergist refers to any one in organic silicon pesticide synergist ZC-650 or organic silicon pesticide bleeding agent spreading agent Agrowet810c, agricultural organic silicon pesticide synergist Silwet408, azone;
Described dispersant be selected from poly-hydroxy acid salt, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkyl benzene sulfonate calcium salt, lignosulfonates, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, polyoxyethylene carboxylate, fatty acid glyceride APEO one or more;
Described wetting agent is selected from: one or more in calcium dodecyl benzene sulfonate, lauryl sodium sulfate, wetting and penetrating agent F, polyoxyethylene tri-styryl phosphenylic acid salt, Nekal BX, alkylnaphthalene sulfonate, spaonin powder, silkworm excrement;
Described disintegrant is selected from: one or more in urea, ammonium sulfate, aluminium chloride, citric acid, sodium bicarbonate;
Described thickener is selected from: one or more in xanthans, methylcellulose, CMC, hydroxyethylcellulose, Magnesiumaluminumsilicate, polyvinyl alcohol;
Described stabilizing agent is selected from: the one in sodium citrate, resorcinol;
Described antifreeze is selected from: one or more in ethylene glycol, propane diols, glycerine;
Described defoamer is selected from: silicone compound, silicone oil, C
10-20saturated fat acid compounds, in one or more;
Described emulsifying dispersant comprises: wetting agent, stabilizing agent, thickener, dispersant, defoamer and antifreezing agent etc.;
Described antifreezing agent has methyl alcohol, ethanol, isopropyl alcohol, ethylene glycol, propane diols, diethylene glycol (DEG), butyl glycol ether, propandiol butyl ether;
Described filler is selected from: one or more in kaolin, white carbon, bentonite, attapulgite, starch, precipitated calcium carbonate.
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| CN201410495968.6A CN104206396A (en) | 2014-09-25 | 2014-09-25 | Bactericidal composition containing penconazole and captan and application |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030161896A1 (en) * | 1998-11-20 | 2003-08-28 | Astrid Mauler-Machnik | Fungicidal active substance combinations |
| CN101019535A (en) * | 2007-02-14 | 2007-08-22 | 山东省烟台市农业科学研究院 | Germicide composition containing captan and possessing synergy |
| CN103651338A (en) * | 2012-09-24 | 2014-03-26 | 宜德雅(北京)科技有限公司 | Sterilization and synergism composition |
-
2014
- 2014-09-25 CN CN201410495968.6A patent/CN104206396A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030161896A1 (en) * | 1998-11-20 | 2003-08-28 | Astrid Mauler-Machnik | Fungicidal active substance combinations |
| CN101019535A (en) * | 2007-02-14 | 2007-08-22 | 山东省烟台市农业科学研究院 | Germicide composition containing captan and possessing synergy |
| CN103651338A (en) * | 2012-09-24 | 2014-03-26 | 宜德雅(北京)科技有限公司 | Sterilization and synergism composition |
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Application publication date: 20141217 |