CN105941425B - A kind of bactericidal composition and its application of fluorine-containing ether bacterium acid amides and Wakil - Google Patents
A kind of bactericidal composition and its application of fluorine-containing ether bacterium acid amides and Wakil Download PDFInfo
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- CN105941425B CN105941425B CN201610365078.2A CN201610365078A CN105941425B CN 105941425 B CN105941425 B CN 105941425B CN 201610365078 A CN201610365078 A CN 201610365078A CN 105941425 B CN105941425 B CN 105941425B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/74—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,3
- A01N43/76—1,3-Oxazoles; Hydrogenated 1,3-oxazoles
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
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Abstract
The invention discloses bactericidal composition and its application of a kind of fluorine-containing ether bacterium acid amides and Wakil.The bactericidal composition is using fluorine ether bacterium acid amides and Wakil as principle active component, and wherein the mass ratio of fluorine ether bacterium acid amides and Wakil is 1~70：1~50.The bactericidal composition can be applied to prevention Cereal, fruit tree, vegetable disease, has higher synergistic function, overcomes and delayed the resistance to the action of a drug of germ, and sterilization speed is fast, the lasting period is long, reduces application cost, and prevention effect is substantially better than the use of its single dose.The present invention can be used for preventing the fungoid on crops, it is particularly possible to which, for preventing the fungal diseases such as downy mildew of garpe, the late blight of potato, rice sheath blight disease, cucumber downy mildew and epidemic disease, significant effect is used better than single dose.
Description
Technical field：
It is main using fluorine ether bacterium acid amides and Wakil the present invention relates to a kind of bactericidal composition and application thereof, especially one kind
The bactericidal composition of active ingredient and its application.
Background technology
Fluorine ether bacterium amide molecule formula：C15H8ClF7N2O2, chemical name：N- (3- chloro- 5- (trichloromethyl) pyridine -2- first
Base) the chloro- 4- methoxy benzamides of -2,3,5,6- four.Structural formula is as follows：
Fluorine ether bacterium acid amides acts on the respiratory chain of fungal mitochondria, suppresses the activity of succinate dehydrogenase, so as to block electricity
Son transmission, suppresses fungus spore germination, germ tube elongation, and mycelial growth and spore mother cell form fungi growth and breed main
Stage, bactericidal effect are directly caused by parent active agent, without corresponding metabolic activity, for downy mildew of garpe, Phytophthora capsici,
A variety of fungal diseases such as the late blight of potato, rice sheath blight disease, cotton seedling blight all have higher preventive effect, are a kind of new wide
Compose fungicide.
Wakil (Oxadixyl), molecular formula：C14H18N2O4, chemical name：2- methoxyl groups-N- (2- oxo -1,3- azoles
Alkane -3- ' yls) acetyl amine-n-(2 ', 6 '-dimethyl benzene).Wakil is a kind of systemic fungicide, soil sterilants, while again
It is a plant growth regulators.The mechanism of action is unique, efficient, less toxic, nuisanceless, and it is mycelial normal to suppress disease fungus
Germ is directly killed in growth, and can promote plant growth.To soil fungi, sickle-like bacteria, root shell bacterium, rhizoctonia, pythium spp, seedling
The pathogens such as rotten bacterium, photovoltaicing leather bacteria have significant prevention effect, to damping-off, seedling rot, samping off, droop, verticillium wilt, bacterium
Core disease, anthracnose, epidemic disease, dry rot, scab, sclerotium soft rot, seedling blight, stem wilt, leaf blight, macerate root, continuous cropping continuous cropping
Obstacle has special efficacy.
The difficulty of prevention and cure of phytopathogen is increasing at present, on the one hand, with the change of pattern of farming, melon fruits and vegetables etc.
Industrial crops cultivated area progressively expands, and disease occurrence degree, generation quantity increase, and difficulty increases in prevention；Separately
On the one hand, the resistance of pathogen rises year by year under lasting medicament selection pressure, and the prevention effect of single dose is had a greatly reduced quality, plant
Disease control is faced with significant challenge.
The content of the invention：
The purpose of the present invention is for above-mentioned technical problem provide it is a kind of it is applied widely, that cost is low, effect is good is fluorine-containing
The plant bactericidal composition of ether bacterium acid amides and Wakil.
Cause answering on fungal disease in prevention plant epiphyte it is a still further object of the present invention to provide the bactericidal composition
With especially in fungal diseases such as prevention downy mildew of garpe, the late blight of potato, rice sheath blight disease, cucumber downy mildew and epidemic diseases
On purposes.
The purpose of the present invention is be achieved through the following technical solutions：
A kind of bactericidal composition of fluorine-containing ether bacterium acid amides and Wakil, the bactericidal composition is with fluorine ether bacterium acid amides and Wakil
For principle active component, the wherein mass ratio of fluorine ether bacterium acid amides and Wakil is 1~70：1~50, wherein have in bactericidal composition
Effect composition is present in composition with enhancing effective amount.
The bactericidal composition, the wherein mass ratio of fluorine ether bacterium acid amides and Wakil are preferably 1~70：1~20, into one
Step is preferably 1~10：1~20, it is still more preferably 1~10：10~20.The preferred mass of fluorine ether bacterium acid amides and Wakil is matched somebody with somebody
Than that can also be：70：1、50：1、30：1、20：1、10：1、5：1、2.5：1、1：1、1：2、1：4、1：6、1：10、1：20、1：30、
1：50.
In the compositions of the present invention, accounted for both fluorine ether bacterium acid amides and Wakil the mass percentage of composition for 2~
80%.It is preferred that 5~70%.
The bactericidal composition, wherein using fluorine ether bacterium acid amides and Wakil as principle active component and known auxiliary agent and
Excipient is re-dubbed any one formulation allowed on pesticide.These known auxiliary agents, excipients have dispersant, diffusant, disappear
Infusion, wetting agent, disintegrant etc., can use calcium dodecyl benzene sulfonate, alkylphenol polyoxyethylene ether, benzyl phenol polyethenoxy
Ether, phenethyl phenol polyethenoxy ether, fatty alcohol polyoxyethylene ether and its similar products, aliphatic amine polyoxyethylene ether, aliphatic acid ring
Oxidative ethane addition product, polyoxyethylene polyoxy propylene block compound, castor oil polyoxyethylene ether, nonylphenol polyoxyethylene ether, spit
Warm series, fatty alcohol polyoxyethylene ether, polyethylene glycol series, Sulfonates, carboxylate, sulfate, phosphate, phosphite,
One or more of lignosulfonates, xanthans, phenol formaldehyde condensate, ammonium salt, quaternary etc. combine, and excipient includes
Cyclohexanone, dimethylbenzene, various solvent naphthas, water, antifreezing agent (such as propane diols), deionized water.Above auxiliary agent, excipient and other
Auxiliary material can be alone or be used in combination.
The bactericidal composition, its formulation are missible oil, wettable powder, suspending agent, aqueous emulsion or water dispersion granule.
Application of the above-mentioned bactericidal composition on prevention fungal diseases of plants medicine is prepared.Especially in prevention cereal
Application in terms of class, fruit tree, vegetable crop disease has significant effect.
Above-mentioned application, the fungal diseases of plants is downy mildew of garpe, the late blight of potato, rice sheath blight disease, Huang
At least one of melon downy mildew and epidemic disease.
The characteristics of bactericidal composition of the present invention：
1st, the fluorine ether bacterium acid amides and Wakil used in the present invention, the mechanism of action are different, mutual mixture will not produce it is low touch, can
Synergy, reduces dosage, reduces cost.
2nd, the present composition scope of application increase, suitable for prevention Cereal, fruit tree, vegetables refractory fungal disease,
Particularly preventing downy mildew of garpe, the late blight of potato, rice sheath blight disease, cucumber downy mildew and epidemic disease etc. has significant effect
Fruit.Bactericidal composition of the present invention has good prevention effect to sac fungus, basidiomycetes, Fungi Imperfecti and Oomycete fungal disease；
And suppress the drug-fast generation of pest or fungi or bacterium to unitary agent (fluorine ether bacterium acid amides and Wakil are any).The present invention
Bactericidal composition can produce higher synergistic function, and the dosage of the amount ratio independent reactive compound of the mixture is big
Big to reduce, i.e., the activity of mixture is more than the activity of independent component.
Beneficial effects of the present invention compared with prior art：(1) compared with single dose, said composition antagonism fungal disease is such as
The fungal diseases such as downy mildew of garpe, the late blight of potato, rice sheath blight disease, cucumber downy mildew and epidemic disease have obvious synergistic work
With, overcome and delayed the resistance to the action of a drug, expansion prevention spectrum, hence it is evident that improve prevention effect；(2) prevention recruitment, drug cost are reduced；
(3) alternative routine and the pesticide for being also easy to produce resistance；(4) compared with single dose, production and application cost reduces；(5) fungi is suppressed
Drug-fast generation, its positive effect are used higher than its single dose.
Embodiment
The invention will be further described with reference to embodiments, and the preparation method of formulation is conventional side in embodiment
Method, " % " of the present invention is mass percent.
Indoor biometrics are tested：
Mycelial growth rate method, EC of the measure different agents to bacterial strain are used indoors50Value, using co-toxicity coefficient calculating side
Method, calculates the co-toxicity coefficient (CTC) of mixture, determines the building performance of mixture, circular is as follows：
EC (is generally selected as standard agent using a certain single dose in mixture50Junior), calculated：
Single dose toxicity index=standard agent EC50/ certain single dose EC50×100
The toxicity index of the toxicity index of theoretical toxicity index=A single doses × A single doses proportion+B single doses in mixture
× B single doses proportion in mixture
Survey the EC of toxicity index=standard single dose50The EC of value/mixture50Value × 100
Co-toxicity coefficient=actual measurement toxicity index/theoretical toxicity index × 100
Co-toxicity coefficient is classified：Mixture has synergetic when CTC is more than 120, is antagonism when CTC is less than 80, CTC exists
It is summation action between 80-120.
According to active ingredient fluorine ether bacterium acid amides (A)：Wakil (B) quality proportioning is：80：1、70：1、50：1、30：1、20：
1、10：1、5：1、2.5：1、1：1、1：2、1：4、1：6、1：10、1：20、1：30、1：50、1：60、1：70 are tested, and measure it
To the co-toxicity coefficient of cucumber downy mildew (Pseudoperonospora cubensis (Berk.et Curt.) Rostov.).
Table 1：Indoor biometrics result of the fluorine ether bacterium acid amides+Wakil different ratio to cucumber downy mildew
| Medicament | Virulence regression equation | EC50(mg/L) | Co-toxicity coefficient |
| 50% fluorine ether bacterium acid amides WP | Y=3.050X+3.295 | 3.623 | - |
| 25% Wakil WP | Y=1.647X+3.836 | 5.090 | - |
| A:B=80:1 | Y=1.235X+4.061 | 5.759 | 63.13 |
| A:B=70:1 | Y=2.085X+3.940 | 3.224 | 112.83 |
| A:B=50:1 | Y=2.136X+3.966 | 3.048 | 119.54 |
| A:B=30:1 | Y=1.117X+4.312 | 4.130 | 88.54 |
| A:B=20:1 | Y=2.068X+3.806 | 3.779 | 97.21 |
| A:B=10:1 | Y=2.554X+3.669 | 3.320 | 112.06 |
| A:B=5:1 | Y=3.639X+3.188 | 3.147 | 120.93 |
| A:B=2.5:1 | Y=1.426X+4.296 | 3.117 | 126.66 |
| A:B=1:1 | Y=2.067X+3.927 | 3.305 | 128.08 |
| A:B=1:2 | Y=1.456X+4.108 | 4.099 | 109.41 |
| A:B=1:4 | Y=3.201X+2.786 | 4.917 | 95.76 |
| A:B=1:6 | Y=2.524X+3.275 | 4.824 | 99.74 |
| A:B=1:10 | Y=3.323X+2.978 | 4.060 | 120.92 |
| A:B=1:20 | Y=1.045X+4.368 | 4.025 | 124.07 |
| A:B=1:30 | Y=2.789X+2.939 | 5.482 | 91.65 |
| A:B=1:50 | Y=2.134X+3.504 | 5.024 | 100.51 |
| A:B=1:60 | Y=1.549X+3.717 | 6.734 | 75.09 |
| A:B=1:70 | Y=2.445X+3.061 | 6.209 | 81.51 |
Field control effectiveness test：
The pesticidal preparations prevention cucumber downy mildew experiment made from above-described embodiment.
1st, test process：This test medicine dosage sets three concentration for the treatment of, comparison medicine respectively according to the difference of each component
Agent is 50% fluorine ether bacterium acid amides WP of pesticide single dose and 25% Wakil WP and blank clean water experiment respectively.
2nd, each plot area of test method is 66.7m2, it is repeated 3 times；Investigation drug effect side after investigating and prevent before dispenser
Method is：5 points of grab sample in test process area, carry out severity Scaling according to national field trial relevant criterion, calculate preventive effect.
Result of the test is shown in Table 2：
Table 2：Field test effect
By indoor biometrics and field efficacy, the result shows that, fluorine ether bacterium acid amides has with Wakil composition significantly to be cooperateed with
Synergistic effect, the prevention effect of composition is excellent, and prevention effect is better than single dose kind, has in agricultural is applied and applies valency
Value.
Two kinds of reactive compounds can be processed into any one formulation of permission, illustrate two kinds below with specific embodiment
The preparation that active ingredient is processed into, but the preparation that can process of the two kinds of active components be not limited only to it is set forth below.
Embodiment 1：15% fluorine ether bacterium acid amides Wakil wettable powder (1:2)
By fluorine ether bacterium acid amides 5g, Wakil 10g, detergent LS (to methoxyl group aliphatic acid amido benzene sulfonic acid sodium salt) 2g, diffusion
Agent NNO (sodium methylene bis-naphthalene sulfonate) 4g, white carbon 5g, kaolin add to 100g mixtures and carry out air-flow crushing, are made effective
Ingredient percent is 15% fluorine ether bacterium acid amides Wakil wettable powder.
Embodiment 2：15% fluorine ether bacterium acid amides Wakil wettable powder (1:4)
By fluorine ether bacterium acid amides 3g, Wakil 12g, lauryl sodium sulfate 3g, dispersing agent NNO 4g, white carbon 5g, kaolinite
Soil adds to 100g mixtures and carries out air-flow crushing, and active ingredient mass percent is made can for 15% fluorine ether bacterium acid amides Wakil
Wet powder.
Embodiment 3：14% fluorine ether bacterium acid amides Wakil wettable powder (1:6)
By fluorine ether bacterium acid amides 2g, Wakil 12g, lauryl sodium sulfate 3g, dispersing agent NNO 4g, white carbon 5g, kaolinite
Soil adds to 100g mixtures and carries out air-flow crushing, and active ingredient mass percent is made can for 14% fluorine ether bacterium acid amides Wakil
Wet powder.
Embodiment 4：20% fluorine ether bacterium acid amides Wakil suspending agent (1:1)
10g fluorine ether bacterium acid amides, 10g Wakils, lignin 2g, polyoxyethylene poly-oxygen propylene aether and its sulfate 4g are weighed,
Xanthans 0.15g, ethylene glycol 5g, siloxanes 0.10g, aluminium-magnesium silicate 0.5g, complements to 100g, under the action of sand mill with water
It is 20% fluorine ether bacterium acid amides Wakil suspending agent that effective ingredient percent, which is made,.
Embodiment 5：55% fluorine ether bacterium acid amides Wakil aqueous emulsion (1:10)
Weigh 5g fluorine ether bacterium acid amides, 50g Wakils, phenethyl phenol polyethenoxy ether phosphate 3g, agriculture breast 33#2g, alkyl
Phenol polyethenoxy ether 1g, 150# solvent naphtha 13g, adds water to 100g.The method that above raw material is routinely prepared to aqueous emulsion is put into
Mixing kettle high speed mixes, and it is 55% fluorine ether bacterium acid amides Wakil aqueous emulsion that effective ingredient percent, which is made,.
Embodiment 6：42% fluorine ether bacterium acid amides Wakil missible oil (1:20)
Weigh 2g fluorine ether bacterium acid amides, 40g Wakils, calcium dodecyl benzene sulfonate 8g, phenethyl phenol polyethenoxy ether 5g,
150# solvent naphthas are to 100g.Above raw material is routinely prepared and is mixed in the method input mixing kettle of missible oil, active ingredient is made
Mass percent is 42% fluorine ether bacterium acid amides Wakil missible oil.
Embodiment 7：70% fluorine ether bacterium acid amides Wakil missible oil (2.5:1)
Weigh 50g fluorine ether bacterium acid amides, 20g Wakils, calcium dodecyl benzene sulfonate 5g, phenethyl phenol polyethenoxy ether 2g,
Castor oil polyoxyethylene ether 2g, 150# solvent naphtha are to 100g.The method that above raw material is routinely prepared to missible oil puts into mixing kettle
Middle mixing, it is 70% fluorine ether bacterium acid amides Wakil missible oil that effective ingredient percent, which is made,.
Embodiment 8：18% fluorine ether bacterium acid amides Wakil water dispersion granule (5：1)
15g fluorine ether bacterium acid amides, 3g Wakils are weighed, wooden sodium sulfonate 8g, lauryl sodium sulfate 2g, ammonium sulfate 5g, gather
Vinyl alcohol 5g, borax 2g, diatomite complement to 100g, and above raw material is formed with effect composition quality by water dispersible granular agent method
Percentage is 17% fluorine ether bacterium acid amides Wakil water dispersion granule.
Embodiment 9：11% fluorine ether bacterium acid amides Wakil missible oil (10:1)
Weigh 10g fluorine ether bacterium acid amides, 1g Wakils, calcium dodecyl benzene sulfonate 6g, phenethyl phenol polyethenoxy ether 7g,
150# solvent naphthas are to 100g.Above raw material is routinely prepared and is mixed in the method input mixing kettle of missible oil, active ingredient is made
Mass percent is 11% fluorine ether bacterium acid amides Wakil missible oil.
Embodiment 10：31.5% fluorine ether bacterium acid amides Wakil microemulsion (20:1)
Weigh 30g fluorine ether bacterium acid amides, 1.5g Wakils, calcium dodecyl benzene sulfonate 6g, phenethyl phenol polyethenoxy ether phosphorus
Acid esters 3g, agriculture breast 33#2g, alkylphenol polyoxyethylene ether 1g, isopropanol 10g, adds water to 100g.Above raw material is routinely prepared
Mixed in the method input mixing kettle of microemulsion, it is 31.5% fluorine ether bacterium acid amides Wakil that effective ingredient percent, which is made,
Microemulsion.
Embodiment 11：31% fluorine ether bacterium acid amides Wakil missible oil (30:1)
Weigh 30g fluorine ether bacterium acid amides, 1g Wakils, calcium dodecyl benzene sulfonate 4g, phenethyl phenol polyethenoxy ether 4g,
150# solvent naphthas are to 100g.Above raw material is routinely prepared and is mixed in the method input mixing kettle of missible oil, active ingredient is made
Mass percent is 31% fluorine ether bacterium acid amides Wakil missible oil.
Embodiment 12：51% fluorine ether bacterium acid amides Wakil suspending agent (50:1)
50g fluorine ether bacterium acid amides, 1g Wakils, lignin 2g, polyoxyethylene poly-oxygen propylene aether and its sulfate 4g are weighed, it is yellow
Virgin rubber 0.15g, ethylene glycol 5g, siloxanes 0.10g, aluminium-magnesium silicate 0.5g, complements to 100g with water, is made under the action of sand mill
It is 51% fluorine ether bacterium acid amides Wakil suspending agent into active ingredient mass percent.
Embodiment 13：32% fluorine ether bacterium acid amides Wakil microemulsion (1:15)
Weigh 2g fluorine ether bacterium acid amides, 30g Wakils, calcium dodecyl benzene sulfonate 6g, phenethyl phenol polyethenoxy ether phosphoric acid
Ester 3g, agriculture breast 33#2g, alkylphenol polyoxyethylene ether 1g, isopropanol 10g, adds water to 100g.Above raw material is routinely prepared micro-
Mixed in the method input mixing kettle of emulsion, it is 32% fluorine ether bacterium acid amides Wakil micro emulsion that effective ingredient percent, which is made,
Agent.
Embodiment 14：6% fluorine ether bacterium acid amides Wakil aqueous emulsion (1:5)
Weigh 1g fluorine ether bacterium acid amides, 5g Wakils, phenethyl phenol polyethenoxy ether phosphate 3g, agriculture breast 33#2g, alkyl phenol
Polyoxyethylene ether 1g, 150# solvent naphtha 13g, adds water to 100g.The method input that above raw material is routinely prepared to aqueous emulsion is mixed
The mixing of kettle high speed is closed, it is 6% fluorine ether bacterium acid amides Wakil aqueous emulsion that effective ingredient percent, which is made,.
Embodiment 15：62% fluorine ether bacterium acid amides Wakil microemulsion (1:30)
Weigh 2g fluorine ether bacterium acid amides, 60g Wakils, calcium dodecyl benzene sulfonate 6g, phenethyl phenol polyethenoxy ether phosphoric acid
Ester 3g, agriculture breast 33#2g, alkylphenol polyoxyethylene ether 1g, isopropanol 10g, adds water to 100g.Above raw material is routinely prepared micro-
Mixed in the method input mixing kettle of emulsion, it is 62% fluorine ether bacterium acid amides Wakil micro emulsion that effective ingredient percent, which is made,
Agent.
Embodiment 16：51% fluorine ether bacterium acid amides Wakil suspending agent (1:50)
1g fluorine ether bacterium acid amides, 50g Wakils, lignin 2g, polyoxyethylene poly-oxygen propylene aether and its sulfate 4g are weighed, it is yellow
Virgin rubber 0.15g, ethylene glycol 5g, siloxanes 0.10g, aluminium-magnesium silicate 0.5g, complements to 100g with water, is made under the action of sand mill
It is 51% fluorine ether bacterium acid amides Wakil suspending agent into active ingredient mass percent.
Embodiment 17：7% fluorine ether bacterium acid amides Wakil water dispersion granule (1：2.5)
Weigh 2g fluorine ether bacterium acid amides, 5g Wakils, wooden sodium sulfonate 8g, lauryl sodium sulfate 2g, ammonium sulfate 5g, poly- second
Enol 5g, borax 2g, white carbon 3g, diatomite complement to 100g, and above raw material is formed with imitating by water dispersible granular agent method
Ingredient percent is 7% fluorine ether bacterium acid amides Wakil water dispersion granule.
Claims (7)
1. the bactericidal composition of a kind of fluorine-containing ether bacterium acid amides and Wakil, it is characterised in that the bactericidal composition is with fluorine ether bacterium acid amides
It is active ingredient with Wakil, wherein the mass ratio of fluorine ether bacterium acid amides and Wakil is 5~1：1 or 1：1~20.
2. bactericidal composition according to claim 1, it is characterised in that both the fluorine ether bacterium acid amides and Wakil account for
The mass percentage of composition is 2~80%.
3. bactericidal composition according to claim 2, it is characterised in that both the fluorine ether bacterium acid amides and Wakil account for
The mass percentage of composition is 5~70%.
4. bactericidal composition according to claim 1, it is characterised in that using fluorine ether bacterium acid amides and Wakil to be main effective
Component and insecticides adjuvant, excipients are configured to any one formulation allowed on pesticide.
5. bactericidal composition according to claim 4, it is characterised in that the formulation be missible oil, suspending agent, aqueous emulsion,
Wettable powder or water dispersion granule.
6. application of the bactericidal composition on prevention fungal diseases of plants medicine is prepared described in claim 1.
7. application according to claim 6, it is characterised in that the fungal diseases of plants is downy mildew of garpe, potato
At least one of late blight, rice sheath blight disease, cucumber downy mildew and epidemic disease.
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