CN103798258B - Bactericidal composition and application thereof - Google Patents
Bactericidal composition and application thereof Download PDFInfo
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- CN103798258B CN103798258B CN201410010287.6A CN201410010287A CN103798258B CN 103798258 B CN103798258 B CN 103798258B CN 201410010287 A CN201410010287 A CN 201410010287A CN 103798258 B CN103798258 B CN 103798258B
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Abstract
The invention provides a bactericide, and particularly provides an agriculturally bactericidal composition. The composition comprises two components: 2-cyano-3-phenyl-3-aminoethyl acrylate and ethylicin, wherein the mass ratio of the components I to the component II is (1:5)-(30:1), and the total mass of the two components takes up 5%-80% of that of the composition. The composition is low in toxicity, slight in damage to people and livestock and ecological environment, and capable of delaying the generation and development of pathogen drug resistance, and has high prevention and treatment effects on the crop disease caused by fusarium, especially on wheat fungoid disease. The bactericidal composition has wide application prospects.
Description
Technical field
The present invention relates to bactericide field, specifically, relate to a kind of bactericidal composition containing 2-cyano-3-amino-3-phenylancryic acetate (component one) and Zhongshengmycin or S-Ethyl ethylthio sulfonate (component two).
Background technology
2-cyano-3-amino-3-phenylancryic acetate, chemical name is: 2-cyano group-3-amino-3-ethyl phenylacrylate.2-cyano-3-amino-3-phenylancryic acetate belongs to xylem running medicament, and this type of medicament is accumulated in the large position of Transpiration Intensity (leaf margin, blade tip) more, has medicine hardly arrive at the very weak organ of transpiration or position (fruit, seed etc.).Find this medicament resistance of rainwater washing against simultaneously, there is protection and the therapeutic action of good interior suction penetration performance and excellence.The Fusarium graminearum, fusarium moniliforme, Fusarium oxysporum etc. of 2-cyano-3-amino-3-phenylancryic acetate to Fusarium all have very high biologically active, be applicable to effective control of the crop pests such as wheat scab, bakanae disease of rice and watermelon blight, the microbial sclerotinia rot of colza in chamber sat by the paddy rice blinds rot that the cucumber downy mildew caused Pseudoperonospora cubensis, rice Xanthomonas cause, the microbial pepper anthracnose of capsicum anthrax, Belém lattice grape also certain inhibitory action.
Zhongshengmycin is a kind of biogenic N-sugar tobramycin antibiotic, and its has a broad antifungal spectrum is effective to various bacteria, fungi; This antibiotic generates by suppressing the peptide bond of pathogenetic bacteria protein, finally causes bacterial death; There is strong inhibition effect to the sprouting of fungal pathogens spore, by causing protoplasm cohesion in hyphal cell, changing mycelium shape, playing the effect of control fungal disease; The multiple fungi bacteriosises such as the plant of Solanaceae bacterial wilts such as alternaria leaf spot of apple, ring spot, anthracnose, tomato, soft rot of cabbage, cucumber bacterial angular leaf spot, bacterial blight of rice, cecospora spot, wheat scab, citrus ulcer, apricot Bacterial septicaemia syndrome can be prevented and treated.
S-Ethyl ethylthio sulfonate, chemical name is: ethane thiosulfonic acid ethyl ester, is organic sulfur high-efficiency broad spectrum bionic fungicide, has plant growth regulation concurrently.Not only can suppress multiple fungus and bacterium, and have stimulation growth, rice blast, bacterial leaf-blight, bakanae disease, seedling rot, banded sclerotial blight can be prevented and treated, the various crop diseases such as cotton seedling blight, fusarium wilt, verticillium wilt, wheat scab.
Wheat scab is disease important in a kind of world wide of being caused by Fusarium graminearum (Fusarium graminearum Schwade), is also one of important controlling object in domestic and international Wheat Production.This disease causes damage not only to the output of wheat, also produces the mycotoxin based on deoxynivalenol simultaneously, has larger harm to people and animals.Still based on chemical control in Wheat Production now.But solely use similar medicament for a long time, pathogen may be caused to develop immunity to drugs to medicament, cause pharmacy control efficacy to reduce.At present, the benzimidazole germicide of the major pharmaceutical agent preventing and treating wheat scab on producing to be carbendazim be representative.Since detecting on the sick fringe of Haining city wheat that the first Fusarium graminearum in the world was to the drug-fast strain of carbendazim from 1992, successively in Zhejiang, Soviet Union, Shanghai, the ground such as Anhui finds the pesticide resistance plant of this pathogen, and pesticide resistance flora body ratio rises rapidly, pesticide resistance pathogen distribution constantly expands.How to continue to control wheat scab and become the significant problem that numerous scientific workers and grower face.
Summary of the invention
The object of this invention is to provide a kind ofly delay the pathogen pesticide resistance emergence and development time, reduce the risk that pathogen produces resistance to single bactericide, the bactericidal composition extending bactericide service life.
In order to realize the object of the invention, the invention provides a kind of bactericidal composition, mainly comprising two kinds of active constituents:
Component one: 2-cyano-3-amino-3-phenylancryic acetate;
Component two: Zhongshengmycin or S-Ethyl ethylthio sulfonate;
Wherein the mass ratio of component one and component two is 1:5 ~ 30:1.
2-cyano-3-amino-3-phenylancryic acetate belongs to 2-cyanoacrylate bactericide, and former medicine outward appearance is white solid powder, is micro-poisoning microbial inoculum.
Zhongshengmycin; chemical name is 1-N glucoside base streptolidine base-2-amino 1B-2 deoxidation gulose amine, is the antibiotic produced by the mutation of Strepiomyces lavendulae Hainan, belongs to N-glucosides class alkali water-soluble material; the wider protective fungicide of a kind of fungicidal spectrum, low toxicity bactericide.
S-Ethyl ethylthio sulfonate, chemical name ethane thiosulfonic acid ethyl ester, be a kind of Effictive nuisancelless wide spectrum bionic fungicide, sterling is colourless or micro-yellow oily liquid, has garlic stink, cheap, includes the material effect of sulfenyl with thalline, thus suppresses the eubolism of thalline.
More excellent, in described composition, the mass ratio of component one and component two is 1:2 ~ 15:1.
More excellent, in described composition, the gross mass of component one and component two accounts for 5% ~ 80% of composition gross mass.
More excellent, in described composition, the gross mass of component one and component two accounts for 10% ~ 65% of composition gross mass.
Invention further provides a kind of bactericide, comprise above-mentioned bactericidal composition.
Described bactericide is wetting powder, water dispersible granules, suspending agent or missible oil.
When described bactericide is wetting powder, can comprise in following auxiliary agent one or more: A, dispersant: one or more in polycarboxylate, lignosulfonates or alkylnaphthalene sulfonate; B, wetting agent: one or more in alkyl sulfate, alkylsulfonate or naphthalene sulfonate; C, filler: sulfuric acid is by, one or more in urea, sucrose, glucose, diatomite, kaolin, white carbon, fine particle calcium carbonate, talcum powder, attapulgite or potter's clay.
When described bactericide is water dispersible granules, can comprise in following auxiliary agent one or more: A, dispersant: one or more in lignosulfonates, naphthalene sulfonate or polycarboxylic acid salt; B, wetting agent: one or more in sulfonate or its condensation product; C, filler: one or more in potter's clay, kaolin or mineral salt; D, binding agent: one or more in cellulose family, carbohydrate, starch or polyvinyl alcohol; E, disintegrant: ammonium sulfate; F, defoamer: organosilicon.
When described bactericide is suspending agent, can comprise in following auxiliary agent one or more: A, dispersant: one or more in polycarboxylate, lignosulfonates or alkylnaphthalene sulfonate; B, emulsifier: one or more in alkyl phenol formaldehyde resin polyoxyethylene ether, alkyl naphthalene sulfonic acid salt, Span60, Tween-60 or triphenoethyl benzene phenol polyoxy in alkene polyoxyethylene block polymers; C, wetting agent: one or more in alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, alkylphenol-polyethenoxy base ether phosphate, phenethyl phenol polyethenoxy base ether phosphate, alkyl sulfate, alkylsulfonate or naphthalene sulfonate; D, thickener: one or both in xanthans or carboxymethyl cellulose; E, preservative: one or more in formaldehyde, benzoic acid or Sodium Benzoate; F, stabilizing agent: one or more in epoxidized soybean oil, epoxychloropropane or triphenyl phosphate; G, defoamer: organosilicon; H, antifreezing agent: one or more in ethylene glycol, propane diols, glycerine, urea or mineral salt.
When described bactericide is missible oil, can comprise in following auxiliary agent one or more: A, emulsifier: one or more in agriculture breast 500#, Nongru-700 #, agriculture breast 2201#, Span-60#, emulsifier T-60, TX-10, agriculture breast 1601#, agriculture breast 600# or agriculture breast 400#, wherein solvent is dimethylbenzene, solvent naphtha, toluene, biodiesel or methylated vegetable oil; B, cosolvent: one or more in ethyl acetate, methyl alcohol, dimethyl methyl acid amide, cyclohexanone, acetone or MEK; C, stabilizing agent: one or more in triphenyl phosphite, epoxychloropropane or aceticanhydride.
Described bactericide is also containing auxiliary agent.
Described auxiliary agent is one or more in dispersant, lubricant, binding agent, disintegrant, defoamer, emulsifier, wetting agent, thickener, preservative, stabilizing agent, antifreezing agent or cosolvent.
Above-mentioned bactericidal composition is being prevented and treated by the purposes in the microbial crop pest of reaping hook.
Agricultural bactericidal composition biologically active provided by the present invention is high, in unit are, dosage is few, dispenser cost is low, simultaneously because 2-cyano-3-amino-3-phenylancryic acetate in the present composition and Zhongshengmycin or S-Ethyl ethylthio sulfonate all belong to the toxicity such as low, therefore people and animals are endangered little, pollution-free to ecotope, beneficial organism, Environmental security.Further, bactericidal composition of the present invention can also delay the drug-fast emergence and development of pathogen, reduces pathogen produces resistance risk to single bactericide, extends the service life of each component in bactericidal composition.Further, there is very high control efficiency to wheat fungal disease, improve the seed output and quality of wheat.
Embodiment
The auxiliary agent used in composition of the present invention comprises dispersant, emulsifier, disintegrant, antifreeze, thickener, wetting agent etc. and other is of value to the known substance that active ingredient is stablized in the formulation and drug effect plays, all various compositions that are conventional in pesticidal preparations or permission use, be not particularly limited, concrete composition and consumption are determined by simple experiment according to recipe requirements.
Following examples are only enumerated the proportioning of fraction compositions, but are not limited thereto.
Embodiment 1
Take 30% 2-cyano-3-amino-3-phenylancryic acetate, 2% Zhongshengmycin, 6% calcium lignosulfonate, 3%SOPA, 5% white carbon, diatom add to 100% weight portion, said components is fully mixed, after ultra-fine pulverizer disintegrating, namely obtains the wetting powder of 32% 2-cyano-3-amino-3-phenylancryic acetate and Zhongshengmycin content.
Embodiment 2
Take 30% 2-cyano-3-amino-3-phenylancryic acetate, 5% Zhongshengmycin, 4% alkylphenol polyoxyethylene, 10%NN0,15% urea, corn starch add to 100% weight portion, by the abundant co-grinding of above-mentioned each component, after fluidized drying, the water dispersible granules containing 35% 2-cyano-3-amino-3-phenylancryic acetate and Zhongshengmycin content is made in granulation.
Embodiment 3
Take 50% 2-cyano-3-amino-3-phenylancryic acetate, 10% Zhongshengmycin, 3% neopelex, 8% sodium methylene bis-naphthalene sulfonate, 3% propane diols, water adds to 100% weight portion, take water as medium, above-mentioned each component permitted a point mixing to add porphyrize processing in sand milling mill still, namely obtain the suspending agent containing 60% 2-cyano-3-amino-3-phenylancryic acetate and Zhongshengmycin content.
Embodiment 4
Take 1% 2-cyano-3-amino-3-phenylancryic acetate, 4% Zhongshengmycin, 5% agriculture breast 500#, 3% agriculture breast 400#, 3% agriculture breast 600#, l% epoxychloropropane, 15% cyclohexanone, dimethylbenzene add to 100% weight portion.Above-mentioned raw materials is through mixing, and stirring and dissolving obtains the missible oil of 5% 2-cyano-3-amino-3-phenylancryic acetate and Zhongshengmycin content completely afterwards.
Embodiment 5
Take 60% 2-cyano-3-amino-3-phenylancryic acetate, 5% Zhongshengmycin, 3% neopelex, 8% sodium methylene bis-naphthalene sulfonate, 3% propane diols, water adds to 100% weight portion, take water as medium, above-mentioned each component permitted a point mixing to add porphyrize processing in sand milling mill still, namely obtain the suspending agent containing 65% 2-cyano-3-amino-3-phenylancryic acetate and Zhongshengmycin content.
Embodiment 6
Take 35% 2-cyano-3-amino-3-phenylancryic acetate, 5% S-Ethyl ethylthio sulfonate, 8% alkylnaphthalene sulfonate, 4% lauryl sodium sulfate, white carbon add to 100% weight portion, said components is fully mixed, after ultra-fine pulverizer disintegrating, namely obtain the wetting powder of 40% 2-cyano-3-amino-3-phenylancryic acetate and S-Ethyl ethylthio sulfonate content.
Embodiment 7
Take 60% 2-cyano-3-amino-3-phenylancryic acetate, 4% S-Ethyl ethylthio sulfonate, 3% agriculture breast 500#, 2% agriculture breast 600#, 2% agriculture breast 2201#, 1% triphenyl phosphite, 2% ethyl acetate, solvent naphtha S-150 add to 100% weight portion, and above-mentioned raw materials is through mixing, and stirring and dissolving obtains the missible oil of 64% 2-cyano-3-amino-3-phenylancryic acetate and S-Ethyl ethylthio sulfonate content completely afterwards.
Embodiment 8
Take 16% 2-cyano-3-amino-3-phenylancryic acetate, 32% S-Ethyl ethylthio sulfonate, 5% agriculture breast 500#, 3% agriculture breast 400#, 3% agriculture breast 600#, l% epoxychloropropane, 15% cyclohexanone, dimethylbenzene add to 100% weight portion, and above-mentioned raw materials is through mixing, and stirring and dissolving obtains the missible oil of 48% 2-cyano-3-amino-3-phenylancryic acetate and S-Ethyl ethylthio sulfonate content completely afterwards.
Embodiment 9
Take 2% 2-cyano-3-amino-3-phenylancryic acetate, 8% S-Ethyl ethylthio sulfonate, 4% alkylphenol polyoxyethylene, 10%NN0,15% urea, corn starch add to 100% weight portion, by the abundant co-grinding of above-mentioned each component, after fluidized drying, the water dispersible granules containing 10% 2-cyano-3-amino-3-phenylancryic acetate and S-Ethyl ethylthio sulfonate content is made in granulation.
Embodiment 10
Take 75% 2-cyano-3-amino-3-phenylancryic acetate, 5% S-Ethyl ethylthio sulfonate, 3% neopelex, 8% sodium methylene bis-naphthalene sulfonate, 3% propane diols, water adds to 100% weight portion, take water as medium, above-mentioned each component permitted a point mixing to add porphyrize processing in sand milling mill still, namely obtain the suspending agent containing 80% 2-cyano-3-amino-3-phenylancryic acetate and S-Ethyl ethylthio sulfonate content.
Embodiment 11
The synergy research of bactericidal composition
Carried out mutual composite synergy research with 2-cyano-3-amino-3-phenylancryic acetate (component one) and Zhongshengmycin or S-Ethyl ethylthio sulfonate (component two), concrete grammar is: the EC first measuring component one and component two single compound (hereinafter referred to as medicament)
50(medicine is to concentration in effective suppression of germ), according to the EC of two single medicaments in combination
50the portfolio ratio of setting medicament, and determine suitable composition ratio according to Wadley coefficient of synergism R value.
Test target bacterium is fusarium graminearum, but is not limited thereto.Test method, with reference to " People's Republic of China (PRC) agricultural industry criteria NY/T1156.2-2006 ", adopts mycelial growth rate method to measure.
Fusarium graminearum stem is inoculated in the dull and stereotyped central authorities of PDA, cultivates 3 days for 25 DEG C, make bacterium cake (bacterium cake diameter of phi=5mm) with card punch in the punching of nearly colony edge place.Bacterium cake access reagent agent is diluted to the PDA culture medium flat plate central authorities of a series of concentration, each culture dish connects 1 bacterium cake.Override interrupt the process 4 times of inoculation.Cultivate in 25 DEG C of constant incubators after 3 days, adopt right-angled intersection method to measure colony growth diameter, get its mean value, go out average Developing restraint rate according to following formulae discovery.The data obtained, through Finney probit analysis method, obtains virulence regression equation, EC with DPS statistical software
50value and correlation coefficient, result as shown in Tables 1 and 2.
Mycelial growth growth rate=(contrast colony diameter-process colony diameter)/contrast colony diameter × 100%
Coefficient of synergism (SR) is calculated according to Wadley method.The synergy of built agent is evaluated by comparing coefficient of synergism (SR).
EC
50(theory)=(a+b)/(a/EC
50a+b/EC
50b)
SR=EC
50(theory)/EC
50(reality)
A, B represent two kinds of dosage component respectively; A, b are the ratio of A, B two components quality in compounded combination.
During SR≤0.5, it is antagonism; During SR=0.5 ~ 1.5, it is summation action; During SR >=1.5, it is synergistic effect.
Table 1 2-cyano-3-amino-3-phenylancryic acetate and Zhongshengmycin composition are to the Wadley method measurement result of wheat scab
| Process | Regression equation | Correlation coefficient r | EC 50(reality) | EC 50(theory) | Coefficient of synergism (SR) |
| 2-cyano-3-amino-3-phenylancryic acetate | y=0.7013x+5.2913 | 0.9639 | 0.3842 | - | - |
| Zhongshengmycin | y=1.1527x+4.1878 | 0.9708 | 5.0659 | - | - |
| 2-cyano-3-amino-3-phenylancryic acetate 1: Zhongshengmycin 5 | y=1.6139x+5.1024 | 0.9797 | 0.8640 | 1.6714 | 1.93 |
| 2-cyano-3-amino-3-phenylancryic acetate 1: Zhongshengmycin 2 | y=1.3848x+5.5985 | 0.9722 | 0.3697 | 1.0008 | 2.71 |
| 2-cyano-3-amino-3-phenylancryic acetate 1: Zhongshengmycin 1 | y=1.5095x+5.9258 | 0.9738 | 0.2436 | 0.7142 | 2.93 |
| 2-cyano-3-amino-3-phenylancryic acetate 2: Zhongshengmycin 1 | y=1.3666x+6.0438 | 0.9935 | 0.1723 | 0.5552 | 3.22 |
| 2-cyano-3-amino-3-phenylancryic acetate 5: Zhongshengmycin 1 | y=1.5072x+6.4884 | 0.999 | 0.1029 | 0.4542 | 4.41 |
| 2-cyano-3-amino-3-phenylancryic acetate 8: Zhongshengmycin 1 | y=1.8348x+6.5939 | 0.9893 | 0.1353 | 0.4282 | 3.16 |
| 2-cyano-3-amino-3-phenylancryic acetate 15: Zhongshengmycin 1 | y=1.7818x+6.4817 | 0.9838 | 0.1474 | 0.4078 | 2.77 |
| 2-cyano-3-amino-3-phenylancryic acetate 30: Zhongshengmycin 1 | y=1.6991x+6.1310 | 0.9862 | 0.2159 | 0.3960 | 1.83 |
Table 2 2-cyano-3-amino-3-phenylancryic acetate and S-Ethyl ethylthio sulfonate composition are to the Wadley method measurement result of wheat scab
| Process | Regression equation | Correlation coefficient r | EC 50(reality) | EC 50(theory) | Coefficient of synergism (SR) |
| 2-cyano-3-amino-3-phenylancryic acetate | y=0.7013x+5.2913 | 0.9639 | 0.3842 | - | - |
| S-Ethyl ethylthio sulfonate | y=1.0787x+4.1689 | 0.9625 | 5.8939 | - | - |
| 2-cyano-3-amino-3-phenylancryic acetate 1: S-Ethyl ethylthio sulfonate 5 | y=0.6188x+4.9971 | 0.9897 | 1.0108 | 1.7386 | 1.72 |
| 2-cyano-3-amino-3-phenylancryic acetate 1: S-Ethyl ethylthio sulfonate 2 | y=0.8735x+5.2379 | 0.977 | 0.5342 | 1.0197 | 1.91 |
| 2-cyano-3-amino-3-phenylancryic acetate 1: S-Ethyl ethylthio sulfonate 1 | y=0.8967x+5.4200 | 0.9906 | 0.3401 | 0.7214 | 2.12 |
| 2-cyano-3-amino-3-phenylancryic acetate 2: S-Ethyl ethylthio sulfonate 1 | y=0.7834x+5.5111 | 0.9894 | 0.2226 | 0.5581 | 2.51 |
| 2-cyano-3-amino-3-phenylancryic acetate 5: S-Ethyl ethylthio sulfonate 1 | y=0.7844x+5.6235 | 0.9724 | 0.1604 | 0.4551 | 2.84 |
| 2-cyano-3-amino-3-phenylancryic acetate 8: S-Ethyl ethylthio sulfonate 1 | y=0.7105x+5.6830 | 0.9852 | 0.1093 | 0.4287 | 3.92 |
| 2-cyano-3-amino-3-phenylancryic acetate 15: S-Ethyl ethylthio sulfonate 1 | y=0.8017x+5.6358 | 0.9796 | 0.1610 | 0.4080 | 2.53 |
| 2-cyano-3-amino-3-phenylancryic acetate 30: S-Ethyl ethylthio sulfonate 1 | y=0.8094x+5.6020 | 0.9874 | 0.1804 | 0.3961 | 2.20 |
Measurement result shows: 2-cyano-3-amino-3-phenylancryic acetate (component one) and Zhongshengmycin or S-Ethyl ethylthio sulfonate (component two) are that 1:2 ~ 15:1 is mixed with weight ratio, and all have good lethality to fusarium graminearum, both have significant synergies in combination.
Embodiment 12
Bactericidal composition is tested the control efficiency of wheat scab
The field efficiency test of wheat scab carries out in Guantao, Handan, test area 20m
2, according to the set amount of test medicine in table 3, arrange respectively and prevent and treat district accordingly, arrange blank district simultaneously, each subregion arranges four groups of parallel controls respectively.Carry out the control of spray medicine at jan flowering wheat, carry out preventive effect investigation in dispenser after 20 days, result is as shown in table 3.
Investigation method: every community adopts 5 sampling surveys, all plant (0.25m in often some investigation one meter of duplicate rows
2).
Divide severity with wheatear portion incidence, be divided into 5 grades:
0 grade anosis;
The sick spikelet number of I level accounts for less than 1/4 of whole small ear;
The sick spikelet number of П level accounts for 1/4 ~ 1/2 of whole small ear;
The sick spikelet number of Ш level accounts for 1/2 ~ 3/4 of whole small ear;
The sick spikelet number of IV level accounts for more than 3/4 of whole small ear.
Drug effect computational methods:
Disease index=100 × ∑ (sick spike number at different levels × typical value at different levels)/(investigating total spike number × highest typical value)
Disease refers to preventive effect=(blank district disease index-control district disease index)/blank district disease index × 100%
Table 3 2-cyano-3-amino-3-phenylancryic acetate (component one) and Zhongshengmycin or S-Ethyl ethylthio sulfonate (component two) bactericidal composition prevent and treat the land for growing field crops drug effect of wheat scab
Note: the letter of " significance of difference " in hurdle represents the new multipole significant difference of Duncan and carry out analysis result.
Result shows, bactericidal composition containing 2-cyano-3-amino-3-phenylancryic acetate (component one) and Zhongshengmycin or S-Ethyl ethylthio sulfonate (component two) has good control efficiency to wheat scab, higher control efficiency can be reached under same dose or lower using dosage, and the preventive effect under each treatment dosage of this bactericidal composition is all higher than 85%, is significantly higher than contrast medicament.
Embodiment 13
Bactericidal composition is tested the control efficiency of bakanae disease of rice
The field efficiency test of bakanae disease of rice is located at Changli, Qinhuangdao, and this field bakanae disease of rice occurs toward average annual moderate, test area 20m
2according to the set amount of test medicine in table 4, corresponding treatment region is set respectively, arrange blank district, each subregion arranges four groups of parallel controls respectively, before rice growing, carry out Medicament soaked seed process simultaneously, the volume ratio that seed mixes with medicament is 1:1, seed soaking time is 10 hours, and in rice seedling investigation bakanae disease, a situation arises, and result is as shown in table 4.
Investigation method: every community diagonal 5 samplings, the diseased plant rate of often some investigation 100 strains.
Drug effect computational methods:
Diseased plant rate=sick seedling number/investigate total seedling number × 100%
Control efficiency=(blank district diseased plant rate-treatment region diseased plant rate)/blank district diseased plant rate × 100%
The drug effect of table 4 2-cyano-3-amino-3-phenylancryic acetate (component one) and Zhongshengmycin or S-Ethyl ethylthio sulfonate (component two) the bactericidal composition water prevention rice bakanae disease
Note: the letter of " significance of difference " in hurdle represents the new multipole significant difference of Duncan and carry out analysis result.
Result shows, the bactericidal composition containing 2-cyano-3-amino-3-phenylancryic acetate (component one) and Zhongshengmycin or S-Ethyl ethylthio sulfonate (component two) has good control efficiency to bakanae disease of rice, and the preventive effect under each treatment dosage, all higher than 82%, is significantly higher than the preventive effect of contrast medicament.
Although above the present invention is described in detail with a general description of the specific embodiments, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.
Claims (9)
1. a bactericidal composition, is made up of two kinds of active constituents:
Component one: 2-cyano-3-amino-3-phenylancryic acetate;
Component two: S-Ethyl ethylthio sulfonate;
Wherein the mass ratio of component one and component two is 1:5 ~ 30:1.
2. bactericidal composition according to claim 1, is characterized in that, in described composition, the mass ratio of component one and component two is 1:2 ~ 15:1.
3. bactericidal composition according to claim 1 and 2, is characterized in that, the gross mass of described component one and component two accounts for 5% ~ 80% of composition gross mass.
4. bactericidal composition according to claim 3, is characterized in that, the gross mass of described component one and component two accounts for 10% ~ 65% of composition gross mass.
5. a bactericide, is characterized in that, the active ingredient of described bactericide is the bactericidal composition in claim 1-4 described in any one.
6. bactericide according to claim 5, is characterized in that, the formulation of described bactericide is wetting powder, water dispersible granules, suspending agent or missible oil.
7. the bactericide according to claim 5 or 6, is characterized in that, described bactericide is also containing conven-tional adjuvants.
8. bactericide according to claim 7, is characterized in that, described auxiliary agent is one or more in dispersant, binding agent, disintegrant, defoamer, emulsifier, wetting agent, thickener, preservative, stabilizing agent, antifreezing agent or cosolvent.
9. the bactericidal composition in claim 1-4 described in any one is being prevented and treated by the purposes in the microbial crop pest of reaping hook.
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| CN1559210A (en) * | 2004-02-18 | 2005-01-05 | 江苏省农药研究所有限公司 | 2-cyano-3-amino-3-ethyl phenylacrylate used for prevention and control of plant disease and elimination of pests |
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| CN1559210A (en) * | 2004-02-18 | 2005-01-05 | 江苏省农药研究所有限公司 | 2-cyano-3-amino-3-ethyl phenylacrylate used for prevention and control of plant disease and elimination of pests |
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| WO2011030094A3 (en) * | 2009-09-09 | 2011-10-27 | Syngenta Limited | Fungicidal mixtures |
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