CN101999379B - Dithianon and mancozeb containing bactericidal composition and application thereof - Google Patents
Dithianon and mancozeb containing bactericidal composition and application thereof Download PDFInfo
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- CN101999379B CN101999379B CN2010105719319A CN201010571931A CN101999379B CN 101999379 B CN101999379 B CN 101999379B CN 2010105719319 A CN2010105719319 A CN 2010105719319A CN 201010571931 A CN201010571931 A CN 201010571931A CN 101999379 B CN101999379 B CN 101999379B
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Abstract
The invention discloses a dithianon and mancozeb containing bactericidal composition and application thereof. The bactericidal composition contains a common auxiliary agent, dithianon and mancozeb, wherein the ratio of parts by weight of the dithianon to the mancozeb is 20:1-1:20, and the total weight of the dithianon and the mancozeb accounts for 10-90% of the bactericidal composition in percentage by weight. The bactericidal composition of the invention is used for controlling diseases of fruit trees and vegetables. Compared with a single agent, the bactericidal composition has obvious synergistic effect on the control effect, reduces the dosage of a pesticide, lowers the dosage cost, prolongs the service life of the pesticide and decreases the adverse influence of the pesticide on ecological environment.
Description
Technical field
The bactericidal composition that the present invention relates to, be take dithianon and mancozeb as active ingredient, is used for control fruit tree and vegetable disease.
Background technology
In the crop growth process, easily be subject to various diseases and contaminate, the crop pest kind is many, area occurs large, and popular strong, harm is serious, causes the underproduction, even has no harvest when serious.
For a long time, chemical control is to prevent and treat the main effective means of crop pest, yet, due to single drug and not Scientific Usage of Drugs for a long time, caused many pathogens to produce resistance to the agricultural chemicals of current use, using dosage and medication number of times increase the development that still is difficult to effectively control disease year by year, simultaneously, agricultural chemicals to the harm of ecotope also increase thereupon, also difficult secure to the safety of crop.Therefore, be badly in need of the bactericide new varieties of efficient, low toxicity, safety, environmental protection.
Dithianon, claim again the Delan (dithianon), be a kind of quinones structure have a multiaction site bactericide,, by with sulfur-containing group reaction and interference cell, breathing and suppress a series of fungal enzymes, cause finally disease death.When having good prolection, certain therapeutic activity is arranged also.Low toxicity, to bio-safeties such as people and animals, honeybee, fishes.
Mancozeb (mancozeb) is the wider protective fungicide of a kind of fungicidal spectrum.It is mainly the oxidation that suppresses pyruvic acid in thalline.Effective to multiple diseases such as the anthracnose on fruit tree, vegetables, early blight, simultaneously it often is mixed with systemic fungicide, for the generation of delaying drug resistance.
Being mixed of different pesticide species is the common methods of the agriculture resistance disease of control.Screening by formulation of pesticide, filter out rational formula, can effectively improve actual control efficiency, reduce dosage, reduce costs, delay the generation of disease drug resistance, is the important means of the disease comprehensive regulation.Dithianon and mancozeb are mixed and have obvious synergistic effect.
Dithianon and mancozeb are mixed significant for control vegetables, fruit diseases, there is no at present relevant report.
Summary of the invention
The object of the invention is to: overcome that in prior art, dosage is large, cost is high, large to ecotope harm, to shortcomings such as crop safety are low, a kind of efficient, low toxicity, safety, environmental protection are provided, drug cost is low, has a kind of bactericidal composition that contains dithianon and mancozeb of notable synergistic effect.
Another object of the present invention is for control fruit tree and vegetable disease.
For achieving the above object, the technical solution adopted in the present invention is: a kind of bactericidal composition that contains dithianon and mancozeb, comprise usual auxiliaries, dithianon and mancozeb, the ratio of weight and number of dithianon and mancozeb is 20: 1-1: 20, and dithianon and the percentage by weight of mancozeb weight summation in bactericidal composition are 10%-90%.
Preferably, the ratio of weight and number of dithianon and mancozeb is 1: 1-1: 15, and dithianon and the percentage by weight of mancozeb weight summation in bactericidal composition are 30%-70%.
Bactericidal composition of the present invention can be selected suitable usual auxiliaries according to well known to a person skilled in the art method, is mixed with the application forms of the suitable agricultural uses such as suspending agent, aqueous emulsion, wetting powder, water dispersible granules.
The present invention is used for control fruit tree and vegetable disease.
Early stage or the use of disease initial stage of origination should occur in disease in the present invention when application.
The present invention adopts the method for spraying to use usually, also can adopt as required other operation techniques of the upper application of agricultural.
Bactericidal composition provided by the invention has following beneficial effect:
1, bactericidal composition provided by the invention, show obvious synergistic effect in certain ratio range, the control efficiency of composition is significantly improved than single dose, has reduced the using dosage of agricultural chemicals, reduce drug cost, reduced the adverse effect of agricultural chemicals to ecotope.
2, the combination of two kinds of bactericide of the present invention, enlarged fungicidal spectrum.
3, two of bactericidal composition provided by the invention kinds of effective ingredient mechanism of action are different, can overcome the long-term single shortcoming that makes with medicament easily produce resistance, extend the service life of medicament, to the comprehensive regulation important in inhibiting of disease.
4, the bactericidal composition that provides of the present invention is to crop safety.
Embodiment
The present invention selects suitable usual auxiliaries, is mixed with the application forms of the suitable agricultural uses such as suspending agent, aqueous emulsion, wetting powder, water dispersible granules.
Preparation during suspending agent auxiliary agent used comprise as follows: 1, solvent and cosolvent: can be one or more the mixing in castor oil, transformer oil, dimethylbenzene, soya-bean oil, machine oil, diesel oil, dimethyl formamide, methyl alcohol, ethylene glycol, acetonitrile.2, wetting agent: can be alkylbenzenesulfonate series, alkylphenol polyoxyethylene, styryl phenol polyethenoxy ether, castor oil polyoxyethylene ether, fatty acid polyglycol oxy alkylene ester, benzylphenol polyoxyethylene groups polyoxypropylene base ether, phosphoric acid ester etc.Wetting agent can be the wherein mixing of one or more.3, dispersant: be one or more the mixing in naphthalene or Fluhyzon formaldehyde condensation products and salt, fatty alcohol ethylene oxide adduct sulfonate, alkylphenol-polyethenoxy base ether sulfonate, lignin and derivative sulfonate thereof, polyvinylpyrrolidone, polyethylene glycol, polyvinyl alcohol, carboxymethyl cellulose etc.4, antifreezing agent: can be one or more the mixing in glycerine, ethylene glycol, propane diols, sodium chloride, urea, sorbierite etc.5 stabilizing agents: can be one or more the mixing in xanthan gum, Magnesiumaluminumsilicate, urea, methyl alcohol, benzinum, soluble starch, cresyl glycidyl ether etc.6, defoamer: can be one or more the mixing in organic silicone oil, methyl alcohol, ethanol, epoxy soybean wet goods.7, pH value conditioning agent: be one or more the mixing in sodium hydroxide, oxyammonia, acetic acid, hydrochloric acid etc.8, thickener: be one or more the mixing in methylcellulose, polyvinyl alcohol, gum Arabic, polyvinylpyrrolidone etc.
Preparation during aqueous emulsion auxiliary agent used comprise as follows: 1, solvent and cosolvent: can be one or more the mixing in castor oil, transformer oil, dimethylbenzene, soya-bean oil, machine oil, diesel oil, dimethyl formamide, methyl alcohol, ethylene glycol, acetonitrile etc.2, emulsifier: can be alkylbenzenesulfonate series, alkylphenol polyoxyethylene, styryl phenol polyethenoxy ether, castor oil polyoxyethylene ether, fatty acid polyglycol oxy alkylene ester, benzylphenol polyoxyethylene groups polyoxypropylene base ether, phosphoric acid ester etc.Emulsifier can be the wherein mixing of one or more.3 dispersants: be one or more the mixing in naphthalene or Fluhyzon formaldehyde condensation products and salt, fatty alcohol ethylene oxide adduct sulfonate, lignin and derivative sulfonate thereof, fatty acid ethane additive product phosphate, alkylphenol-polyethenoxy based phosphates, carboxymethyl cellulose, polyvinyl alcohol, 1-METHYLPYRROLIDONE, polyethylene glycol etc.4, antifreezing agent: can be one or more the mixing in glycerine, ethylene glycol, propane diols, sodium chloride, urea, sorbierite etc.5, stabilizing agent: can be one or more the mixing in xanthan gum, Magnesiumaluminumsilicate, urea, methyl alcohol, benzinum, soluble starch, cresyl glycidyl ether etc.6, defoamer: can be one or more the mixing in organic silicone oil, C10-20 saturated fat acids, epoxidized soybean oil, iodoxy amine, ester ethers etc.7, pH value conditioning agent: be one or more the mixing in sodium hydroxide, oxyammonia, acetic acid, hydrochloric acid etc.8, thickener: be one or more the mixing in methylcellulose, polyvinyl alcohol, gum Arabic, polyvinylpyrrolidone etc.
Preparation during wetting powder auxiliary agent used comprise as follows: 1, wetting agent: can be that tea is withered, spaonin powder, bay alcohol radical sodium sulphate, neopelex, pull open one or more the mixing in powder, washing powder etc.2, dispersant: can be one or more the mixing in lignin and derivative sulfonate thereof, fatty acid ethane additive product phosphate, alkyl phenol polyvinylether sulfonate, polyvinylpyrrolidone, polyvinyl alcohol, polyethylene glycol, naphthalene or Fluhyzon formaldehyde condensation products and salt, alkylphenol-polyethenoxy based phosphates etc.3, filler: can be one or more the mixing in kaolin, white carbon, talcum powder, precipitated calcium carbonate, montmorillonite, diatomite, cellulose powder, urea, bark powder, ammonium nitrate etc.
Preparation during water dispersible granules auxiliary agent used comprise as follows: 1, wetting agent: can be one or more the mixing in sodium alkyl benzene sulfonate, sodium lignin sulfonate, fatty alcohol, polyoxyethylene carboxylate sodium sulfonate and ammonium salt, alkyl sulfate, alkylphenol polyoxyethylene, spaonin powder, the withered powder of tea etc.2, dispersant: can be that ethoxylated dodecyl alcohol, naphthalenesulfonic acid-formaldehyde condensate (NNO), dioctyl sulfosuccinic acid are received, one or more the mixing in JFC, acrylate homopolymer sodium salt etc.3, carrier: can be one or more the mixing in kaolin, white carbon, precipitated calcium carbonate, montmorillonite, diatomite etc.4, disintegrant: can be one or more the mixing in bentonite, urea, ammonium sulfate, sodium chloride, magnesium chloride etc.5, binding agent: can be one or more the mixing in starch, gelatin, polyvinyl alcohol, polyethylene glycol, starch, cyclodextrin, soybean lecithin, rosin etc.6, stabilizing agent: can be one or more the mixing in benzinum, soluble starch, cresyl glycidyl ether, sorbierite etc.
, in order to understand better essence of the present invention, be described further by following examples, but the present invention is not limited to these embodiment.In these embodiments, unless otherwise indicated, all percentages all are weight percentage.
Embodiment 1 (30% dithianon mancozeb suspending agent)
Dithianon 10%, mancozeb 20%, polyoxyethylene nonylphenol ether 3%, alkylphenol polyoxyethylene polyoxypropylene ether block copolymers 4%, polyvinyl alcohol 3%, ethylene glycol 4%, epoxidized soybean oil 2%, sorbierite 0.5%, surplus is deionized water.Above-mentioned formula is pulverized in proportion in advance, then added in sand mill and grind, allotment makes 30% dithianon mancozeb suspending agent after high shear mixing.
Embodiment 2 (21% dithianon mancozeb suspending agent)
Dithianon 20%, mancozeb 1%, polyoxyethylene nonylphenol ether 8%, alkylphenol polyoxyethylene polyoxypropylene ether block copolymers 6%, polyvinyl alcohol 2%, ethylene glycol 3%, epoxidized soybean oil 1%, sorbierite 0.5%, surplus is deionized water.Above-mentioned formula is pulverized in proportion in advance, then added in sand mill and grind, allotment makes 21% dithianon mancozeb suspending agent after high shear mixing.
Embodiment 3 (15% dithianon mancozeb aqueous emulsion)
Thifluzamide 12.5%, mancozeb 2.5%, 1-METHYLPYRROLIDONE 10%, agriculture breast 600#8%, calcium dodecyl benzene sulfonate 3%, glycerine 0.5%, Magnesiumaluminumsilicate 1%, gum Arabic 1%, surplus is deionized water.Above-mentioned formula Central Plains medicine, solvent, emulsifiers dissolve are become even oil phase; In filling a prescription, water-soluble component and deionized water mixing make water; Under high-speed stirred, oil phase and water mixing are made 15% dithianon mancozeb aqueous emulsion.
Embodiment 4 (70% dithianon mancozeb wettable powder)
Dithianon 5%, mancozeb 65%, sodium lignin sulfonate 4%, sodium metnylene bis-naphthalene sulfonate 5%, white carbon 2%, surplus is kaolin.Above-mentioned each component in proportion after coarse crushing, is entered in blender and mixes, more namely make 70% dithianon mancozeb wettable powder after air-flow crushing.
Embodiment 5 (50% dithianon mancozeb wettable powder)
Dithianon 25%, mancozeb 25%, sodium lignin sulfonate 3%, sodium metnylene bis-naphthalene sulfonate 6%, white carbon 3%, surplus is kaolin.Above-mentioned each component in proportion after coarse crushing, is entered in blender and mixes, more namely make 50% dithianon mancozeb wettable powder after air-flow crushing.
Embodiment 6 (80% dithianon mancozeb water dispersible granule)
Dithianon 4%, mancozeb 76%, sodium lignin sulfonate 4%, naphthalenesulfonic acid-formaldehyde condensate 4%, sodium chloride 2%, soluble starch 1%, polyvinyl alcohol 3%, ammonium sulfate 5%, surplus is kaolin.Dry pulverization process, extruder grain, drying, screening make 80% dithianon mancozeb water dispersible granule in proportion with above-mentioned formula.
Embodiment 7 (10% dithianon mancozeb wettable powder)
Dithianon 6%, mancozeb 4%, sodium lignin sulfonate 4%, sodium metnylene bis-naphthalene sulfonate 6%, white carbon 3%, surplus is kaolin.Above-mentioned each component in proportion after coarse crushing, is entered in blender and mixes, more namely make 10% dithianon mancozeb wettable powder after air-flow crushing.
Embodiment 8 (90% dithianon mancozeb water dispersible granule)
Dithianon 5%, mancozeb 85%, sodium lignin sulfonate 4%, naphthalenesulfonic acid-formaldehyde condensate 4%, sodium chloride 2%, soluble starch 1%, polyvinyl alcohol 3%, ammonium sulfate 5%, surplus is kaolin.Dry pulverization process, extruder grain, drying, screening make 90% dithianon mancozeb water dispersible granule in proportion with above-mentioned formula.
Biologicall test embodiment one: the be mixed field control effectiveness test of composition for preventing and controlling cucumber downy mildew of dithianon and mancozeb
Reagent agent and dispenser dosage:
(1) 70% dithianon mancozeb wettable powder (dithianon 5%: mancozeb 65%), mu preparation 150 grams (1#)
(2) 30% dithianon mancozeb suspending agents (dithianon 10%: mancozeb 20%), mu preparation 500 grams (2#);
Contrast medicament and dispenser dosage:
(1) 75% dithianon wetting powder, mu preparation 120 grams (3#);
(2) 80% mancozeb wettable powders, mu preparation 250 grams (4#).
Spraying time and application method: the dispenser of cucumber downy mildew their early stage once, after 7 days again dispenser once, be watered even spraying.
Result of the test: in Table 1, as can be seen from the test results: after the secondary dispenser 14 days, dithianon of the present invention and mancozeb be mixed composition to the cucumber downy mildew preventive effect all more than 86%, significantly better than the single dose of contrast; After the secondary dispenser 21 days, dithianon of the present invention and mancozeb be mixed composition to the cucumber downy mildew preventive effect all more than 90%, also significantly better than the single dose of contrast; In process of the test, each medicament is showed no the poisoning generation, to crop safety.Illustrate that dithianon of the present invention and the mancozeb composition that is mixed is better than single dose, improve actual control efficiency, reduce dosage, reduce costs, reduce the adverse effect of medicament to environment, delay the generation of disease drug resistance, agricultural synthesis is administered and had great significance.
The field control effectiveness test result of table 1 control cucumber downy mildew
Biologicall test embodiment two: the be mixed field control effectiveness test of composition for preventing and controlling pear scab of dithianon and mancozeb
Reagent agent and dispenser dosage:
(1) 50% dithianon mancozeb wettable powder (dithianon 25%: mancozeb 25%), 1500 times of extension rates (5#);
(2) 80% dithianon mancozeb water dispersible granules (dithianon 4%: mancozeb 76%), 2000 times of extension rates (6#);
Contrast medicament and dispenser dosage:
(1) 25% dithianon suspending agent, 1000 times of extension rates (7#);
(2) 80% mancozeb wettable powders, 1000 times of extension rates (8#).
Spraying time and application method: the dispenser of pear scab their early stage once, after 7 days again dispenser once, be watered even spraying.
Result of the test: in Table 2, as can be seen from the test results: after the secondary dispenser 14 days, dithianon of the present invention and mancozeb be mixed composition to the pear scab preventive effect all more than 92%, significantly better than the single dose of contrast; After the secondary dispenser 21 days, dithianon of the present invention and mancozeb be mixed composition to the pear scab preventive effect all more than 96%, also significantly better than the single dose of contrast; In process of the test, each medicament is showed no the poisoning generation, to crop safety.
The field control effectiveness test result of table 2 control pear scab
Biologicall test embodiment three: the combination that is mixed of dithianon and mancozeb is measured the synergy of cucumber downy mildew
Be mixed to the synergy type of cucumber downy mildew for further understanding dithianon and mancozeb, the inventor is mixed and has carried out a large amount of formula indoor screening tests dithianon and mancozeb.
Test method: test adopts the mycelial growth rate method to measure.Under aseptic technique, process the sterilising medium that will melt in advance according to test and quantitatively add in aseptic conical flask, quantitatively draw successively liquid from the low concentration to the high concentration, add respectively in above-mentioned conical flask, fully shake up.Then to pour 4 diameters into be in the culture dish of 9cm to equivalent, and the pastille of making respective concentration is dull and stereotyped.Be the bacterium cake of 5mm from the colony edge cut-off footpath of cultivating 5d oat medium, be inoculated in respectively above-mentioned pastille dull and stereotyped, test is established the processing that does not contain medicament and is made blank, and every processing repeats for 4 times.Cultivate 5d under 26 ℃ of dark conditions, measure colony diameter, calculate the inhibiting rate (%) of each concentration medicament to mycelial growth.
Growing state investigation pathogen mycelial growth situation according to bacterium in the blank culture dish.Use the kind of calliper colony diameter, unit is millimeter (mm).Each bacterium colony with right-angled intersection method vertical survey diameter respectively once, is got its mean value.
According to survey data, calculate each concentration for the treatment of to the mycelial growth inhibition rate for examination target bacterium by NY/T1156.2-2006, unit is percentage (%).
Take the logarithm value of drug concentration (mg/L) as independent variable x,, take the probit value of inhibiting rate as dependent variable y, set up respectively the virulence regression equation formula, adopt DPS software to calculate the EC of single dose and each proportioning mixture
50The co-toxicity coefficient (CTC) of (95% confidence limit) and mixture.
According to the NY/T1156.6-2006 bactericide synergy criteria for classifying: co-toxicity coefficient (CTC) 〉=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤120 shows as antagonism; 120＜co-toxicity coefficient (CTC)＜120 shows as summation action.
Can find out from result of the test table 3, the composition that is mixed of dithianon and mancozeb is 1 at ratio of quality and the number of copies: 1-1: between 15, co-toxicity coefficient (CTC value), all greater than 120, namely all shows obvious synergistic effect.Dithianon and mancozeb are mixed and have reasonability and feasibility, are worth carrying out field experiment and promote.
Table 3, dithianon and mancozeb and the different proportioning toxicity test result to cucumber downy mildew
Claims (3)
1. bactericidal composition that contains dithianon and mancozeb, comprise usual auxiliaries, dithianon and mancozeb, it is characterized in that effective ingredient is dithianon and mancozeb, the ratio of weight and number of dithianon and mancozeb is 1:8, and dithianon and the percentage by weight of mancozeb weight summation in bactericidal composition are 10%-90%.
2. a kind of bactericidal composition that contains dithianon and mancozeb according to claim 1 is characterized in that: its formulation is a kind of in suspending agent, aqueous emulsion, wetting powder, water dispersible granules.
3. a kind of application that contains the bactericidal composition of dithianon and mancozeb according to claim 1, is characterized in that preventing and treating fruit tree, vegetable disease.
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| CN107535512A (en) * | 2016-06-24 | 2018-01-05 | 陕西韦尔奇作物保护有限公司 | A kind of synergetic pesticide composition containing mancopper |
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| CN101496520A (en) * | 2009-03-11 | 2009-08-05 | 陕西蒲城县美邦农药有限责任公司 | Dithianon water-dispersion granule |
| CN101601396B (en) * | 2009-03-26 | 2011-11-23 | 陕西蒲城县美邦农药有限责任公司 | Sterilization composition containing dithianon and propineb |
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| Title |
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| 吴文君.6.3水分散粒剂.《农药学原理》.中国农业出版社,2000,(第1版),第124-125页. * |
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