CN103271038A - Bactericidal composition and preparation thereof - Google Patents
Bactericidal composition and preparation thereof Download PDFInfo
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- CN103271038A CN103271038A CN2013101881810A CN201310188181A CN103271038A CN 103271038 A CN103271038 A CN 103271038A CN 2013101881810 A CN2013101881810 A CN 2013101881810A CN 201310188181 A CN201310188181 A CN 201310188181A CN 103271038 A CN103271038 A CN 103271038A
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Abstract
The invention relates to the technical field of pesticides and in particular relates to a bactericidal composition and a preparation thereof. The bacterial composition comprises cyflufenamid and bupirimate. The invention further provides a bactericide of the bactericidal composition. According to the bacterial composition and the preparation thereof disclosed by the invention, the cyflufenamid and bupirimate are compounded to generate an obvious synergistic effect, so that the dosage of the pesticides is lowered, and therefore, the production cost is lowered and the labor power is saved.
Description
Technical field
The present invention relates to technical field of pesticide, relate in particular to a kind of bactericidal composition and preparation thereof.
Background technology
Powdery mildew is the common disease on the crops, to the one-tenth strain blade of mainly causing harm, the climing and petiole of stem of also causing harm sometimes can take place all from seedling.During morbidity just, white fleck appears in the blade face, after enlarge gradually, can be linked to be sheet at last, be covered with the mould layer of white powdery on the blade face.When serious, blade is flavescence gradually, and is withered, occurs many black point-like things sometimes on the scab.Take place generally in China wheat belt as wheat powdery mildew, its harm mainly is to reduce grain number per spike and reduce thousand kernel weight, general popular time wheatland underproduction 5%-10%, but the underproduction 30% when serious.Since the later stage seventies, along with of short stem, the popularization of semi-dwarf mutant wheat breed and the improvement of fertilizer and water condition, wheat plant is tillered increased, grow densely, cause that the field is strongly fragrant covers, generation and the harm of powdery mildew are on the rise, and become one of main disease on the present Wheat Production.
Cyflufenamid is ring fluorine benzyl acid amides again, and English name cyflufenamid, its chemical structural formula be suc as formula shown in the I,
The mechanism of action of cyflufenamid is by suppressing formation and growth, the growth of secondary hyphae and the formation of hapteron of mitogenetic haustorium on the mycelia in the white powder germ history of life (also being pathogenic process).But long and hapteron forms and does not all have effect to the court of a feudal ruler of spore germination, germ tube.However, the mechanism of action of its biochemistry aspect is not clear, just under study for action.A large amount of biological activity determination results show, cyflufenamid is not only had protection and a therapeutic activity of excellence to numerous powdery mildews, and have well to hold and imitate active and resistance of rainwater washing against activity.Although it has the active and blade face diffusion activity of good steam, the mobile activity in plant corpus is then poor, and namely systemic activity is poor.
Bupirimate, English common name bupirimate, chemical name 5-butyl-2-ethylamino-6-methylpyrimidine-4-base dimethylamino sulfuric ester, structural formula is suc as formula shown in the II.This medicine is the miazines systemic fungicide, and the mechanism of action is adenylic acid ammonia enzyme inhibitor, has protection and therapeutic action, can be absorbed rapidly by plant roots, stem, leaf, and run to each position, resistance of rainwater washing against in plant corpus.Lasting period 10d～14d after the dispenser, the powdery mildew that is mainly used in preventing and treating crops such as apple, greenhouse rose and strawberry.
In agricultural production, use cyflufenamid or bupirimate can not well reach the purpose of preventing and treating powdery mildew separately.The different cultivars composition is carried out composite, can delay that pesticide resistance produces and strengthen drug effect.During Recompounded pesticide, the agricultural chemicals after the need assurance is composite can produce synergistic effect, just can reach the purpose that delays pesticide resistance, improves drug effect, reduces the medication number of times, reduces cost.But, at present to the prescription of agriculture chemical compounding for controlling powdery mildew, because component or proportioning selection are improper, can't reach synergistic effect usually.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of bactericidal composition and preparation thereof, and bactericidal composition provided by the invention is compared with single agent and produced obvious synergistic effect, has reduced the consumption of agricultural chemicals.
The invention provides a kind of bactericidal composition, comprise cyflufenamid and bupirimate.
As preferably, the mass ratio of cyflufenamid and bupirimate is 1:(5～15 in the bactericidal composition provided by the invention).
Preferably, the mass ratio of cyflufenamid and bupirimate is 1:(9～12 in the bactericidal composition provided by the invention).
The present invention also provides a kind of bactericide that comprises bactericidal composition provided by the invention.
Be active ingredient with bactericidal composition provided by the invention, add the bactericide that acceptable auxiliary in the agricultural chemicals is made multiple formulation.
As preferably, acceptable auxiliary comprises emulsifier, wetting agent, dispersant, disintegrant, antifreezing agent, thickener, organic solvent, adhesive, carrier in the agricultural chemicals.
Preferably, emulsifier is a kind of or both the above mixtures in agricultural newborn 500#, agricultural newborn 600#, Nongru-700 #, agricultural newborn 0201B, agricultural newborn 0203B, peaceful newborn 700#, peaceful newborn 33# or the polyoxyethylene styryl phenyl ether.
Preferably, wetting agent is a kind of or both the above mixtures in lauryl sodium sulfate, dodecyl sodium sulfate, neopelex, Nekal BX, moistening penetrant t, fat alcohol polyethylene ether, polyoxyethylene nonylphenol ether, sorbitan fatty acid ester APEO or the Fluhyzon formaldehyde condensation products.
Preferably, dispersant is a kind of or both the above mixtures in sodium lignin sulfonate, calcium lignosulfonate, Sodium Polyacrylate, sodium methylene bis-naphthalene sulfonate, carboxymethyl cellulose, polyvinyl alcohol or the sodium phosphate trimer.
Preferably, disintegrant is a kind of among urea, sodium carboxymethylcellulose, ammonium sulfate, magnesium chloride or the PEG.
Preferably, antifreezing agent is a kind of or both the above mixtures in ethylene glycol, propane diols, glycerine or the sorbierite.
Preferably, thickener is a kind of in xanthans, Sodium Polyacrylate, polyvinyl alcohol, sodium alginate, starch or the organobentonite.
Preferably, adhesive is a kind of among Sodium Polyacrylate, PEG, sex change PVA, wooden sodium, dextrin, CMC, xanthans, the SF-04.
Preferably, organic solvent is a kind of or both the above mixtures in No. 200, aromatic solvent naphtha, tributyl phosphate, tetrahydrofurfuryl alcohol, epoxidized soybean oil, paraffin oil, No. 100, solvent naphtha, No. 150, solvent naphtha, No. 180, solvent naphtha or the solvent naphtha.
Preferably, carrier is a kind of or both the above mixtures in kaolin, diatomite, white carbon, attapulgite or the precipitated calcium carbonate.
As preferably, the formulation of bactericide provided by the invention is missible oil, aqueous emulsion, suspending agent, wetting powder or water dispersible granules.
In some embodiments of the invention, the formulation of bactericide provided by the invention is missible oil, and the mass fraction of bactericidal composition provided by the invention is 20%～90% in the missible oil.
As preferably, each constituent content is counted with mass percent in the missible oil: bactericidal composition 20%～90% provided by the invention, and emulsifier 3%～15%, surplus is organic solvent.
In some embodiments of the invention, the formulation of bactericide provided by the invention is aqueous emulsion, and the mass fraction of bactericidal composition provided by the invention is 1%～30% in the aqueous emulsion.
As preferably, each constituent content is counted with mass percent in the aqueous emulsion: bactericidal composition 1%～30% provided by the invention, emulsifier 5%～30%, thickener 1%～5%, organic solvent 0～10%, antifreezing agent 0～5%, surplus are water.
In some embodiments of the invention, the formulation of bactericide provided by the invention is suspending agent, and the mass fraction of bactericidal composition provided by the invention is 1%～52% in the suspending agent.
As preferably, each constituent content is counted with mass percent in the suspending agent: bactericidal composition 1%～52% provided by the invention, wetting agent 1%～10%, dispersant 1%～10%, thickener 0.1%～2%, surplus are water.
Preferably, each constituent content is counted with mass percent in the suspending agent: bactericidal composition 1%～52% provided by the invention, wetting agent 1%～5%, dispersant 1%～8%, thickener 0.1%～2%, surplus are water.
In some embodiments of the invention, the formulation of bactericide provided by the invention is wetting powder, and the mass fraction of bactericidal composition provided by the invention is 1%～80% in the wetting powder.
As preferably, each constituent content is counted with mass percent in the wetting powder: bactericidal composition 1%～80% provided by the invention, wetting agent 1%～10%, dispersant 1%～10%, surplus are carrier.
Preferably, each constituent content is counted with mass percent in the wetting powder: bactericidal composition 1%～80% provided by the invention, wetting agent 2%～4%, dispersant 4%～6%, surplus are carrier.
In some embodiments of the invention, the formulation of bactericide provided by the invention is water dispersible granules, and the mass fraction of bactericidal composition provided by the invention is 1%～80% in the water dispersible granules.
As preferably, each constituent content is counted with mass percent in the water dispersible granules: bactericidal composition 1%～80% provided by the invention, wetting agent 1%～8%, dispersant 2%～10%, disintegrant 0～5%, adhesive 0～1%, surplus are carrier.
Preferably, each constituent content is counted with mass percent in the water dispersible granules: bactericidal composition 1%～80% provided by the invention, wetting agent 2%～8%, dispersant 4%～10%, disintegrant 0～5%, adhesive 0～1%, surplus are carrier.
The application of bactericide provided by the invention in preventing and treating powdery mildew.
The invention provides a kind of bactericidal composition, comprise cyflufenamid and bupirimate, and the bactericide that comprises this bactericidal composition is provided.Cyflufenamid and bupirimate independently use in the prior art, all are used for preventing and treating powdery mildew.The present invention carries out both composite, has produced obvious synergistic effect, has reduced the consumption of agricultural chemicals.Thereby reduced production cost and saved the labour.The Toxicity Determination experiment shows: under same amount, the co-toxicity coefficient of Recompounded pesticide has all surpassed 120, shows as synergistic effect.The field efficacy measurement result shows that under equal consumption, Recompounded pesticide effect provided by the invention will be significantly higher than each single agent to the control efficiency of crop powdery mildew.Further specifying bactericidal composition provided by the invention compares with single agent and has produced obvious synergistic effect.
Embodiment
The invention provides a kind of bactericidal composition and preparation thereof, those skilled in the art can use for reference this paper content, suitably improve technological parameter and realize.Special needs to be pointed out is that all similarly replace and change apparent to those skilled in the art, they all are regarded as being included in the present invention.Method of the present invention and application are described by preferred embodiment, the related personnel obviously can change or suitably change and combination methods and applications as herein described in not breaking away from content of the present invention, spirit and scope, realizes and use the technology of the present invention.
The reagent that the present invention adopts is all common commercially available product, all can be buied by market.
Below in conjunction with embodiment, further set forth the present invention:
Embodiment 1: bactericidal composition Toxicity Determination provided by the invention
For the composite ratio of cyflufenamid and bupirimate is screened, carried out Toxicity Determination with the cyflufenamid bupirimate of different proportionings.Test adopts the leaf butterfly method of preserving moisture to carry out toxicity test.Measure the virulence of cyflufenamid and the agent of bupirimate list simultaneously respectively.
With the conidium on the sterile water wash-out powdery mildew incidence of leaf, being mixed with spore concentration is 1 * 10
6The spore suspension of individual/mL.The preparation mass fraction is 18% cyflufenamid bupirimate aqueous emulsion, wherein the mass ratio of cyflufenamid bupirimate is respectively 1:5,1:7,1:9,1:11,1:12,1:14,1:15, be the dilution of 18% cyflufenamid bupirimate aqueous emulsion with the mass fraction for preparing, extension rate is 200 times, 300 times, 400 times, 500 times, 600 times, 700 times, 800 times.The not susceptible cucumber leaves of gathering is prepared into the leaf dish that diameter is 1.5cm, and mixing at random, and place the aqueous emulsion of dilution back variable concentrations respectively soaks 1h, 50 leaf dishes of each concentration, and test is with the blank that is treated to of adding medicine not.
After soaking end, leaf faces up and puts on the moistening blotting paper of identical liquor strength, soup on the blade is blotted, the spore suspension 10 μ L that prepare are inoculated in leaf dish central authorities, after room temperature is placed 5min, place under 20 ℃, the condition of 12h alternation of light and darkness and cultivate, measure the onset area on the leaf dish behind the 10d, calculate EC
50, calculate co-toxicity coefficient (CTC) with the abundant method of Sun Yun again.
Different fungicidal activity components mix each active component of back because the difference of composition, structure, physicochemical property makes that the synergy between each active component is typically expressed as synergistic effect, summation action or antagonism.So-called synergistic effect is exactly the mutual synergism between different material, and the effect of its generation is greater than the sum total of each composition effect; And being exactly the effect of its generation, summation action equals the sum total of each composition effect; When antagonism referred to that two kinds of materials act on living organism, a kind of material disturbed the effect of another kind of material, or the effect of interfering with an opponent each other, the phenomenon that general effect is descended.
Co-toxicity coefficient (CTC) 〉=120 shows as synergistic effect;
Co-toxicity coefficient (CTC)≤80 shows as antagonism;
80＜co-toxicity coefficient (CTC)＜120 shows as summation action.
Actual measurement toxicity index (ATI)=(standard medicament EC
50/ reagent agent EC
50) * 100
Theoretical toxicity index (TTI)=(percentage composition of A in toxicity index * mixture of A)+(percentage composition of B in toxicity index * mixture of B)
Co-toxicity coefficient (CTC)=[mixture actual measurement virulence coefficient (the ATI)/theoretical virulence coefficient (TTI) of mixture] * 100
Bactericidal composition Toxicity Determination result provided by the invention is as shown in table 1:
Table 1 epoxy bacterium amine bupirimate is to the prescription The selection result of powdery mildew of cucumber germ
By table 1 as seen, epoxy bacterium amine and bupirimate are mixed, mass ratio range is in 1:(5～15) between its co-toxicity coefficient all above 120, it is composite to illustrate that epoxy bacterium amine and bupirimate carry out under this ratio, compares with single agent to produce good synergistic effect.Can reduce dosage, thereby save the labour.
Embodiment 2:20% cyflufenamid bupirimate missible oil
Get cyflufenamid 2kg, bupirimate 18kg, Nongru-700 #3kg, tributyl phosphate 77kg, abundant mixed dissolution, namely.
Embodiment 3:23% cyflufenamid bupirimate missible oil
Get cyflufenamid 3kg, bupirimate 20kg, agricultural newborn 600#15kg, No. 150 62kg of solvent naphtha, abundant mixed dissolution, namely.
Embodiment 4:42% cyflufenamid bupirimate missible oil
Get cyflufenamid 6kg, bupirimate 36kg, agricultural newborn 500#10kg, agricultural newborn 0201B5kg, No. 100 43kg of solvent naphtha, abundant mixed dissolution, namely.
Embodiment 5:55% cyflufenamid bupirimate missible oil
Get cyflufenamid 5kg, bupirimate 50kg, peaceful newborn 700#8kg, tetrahydrofurfuryl alcohol 48kg, abundant mixed dissolution, namely.
Embodiment 6:78% cyflufenamid bupirimate missible oil
Get cyflufenamid 13kg, bupirimate 65kg, agricultural newborn 500#12kg, paraffin oil 10kg, abundant mixed dissolution, namely.
Embodiment 7:90% cyflufenamid bupirimate missible oil
Get cyflufenamid 9kg, bupirimate 81kg, peaceful newborn 33#3kg, No. 200 7kg of solvent naphtha, abundant mixed dissolution, namely.
Embodiment 8:1% cyflufenamid bupirimate aqueous emulsion
Cyflufenamid 0.1kg, bupirimate 0.9kg, aromatic solvent naphtha 5kg, polyoxyethylene styryl phenyl ether 5kg, propane diols 1kg, sodium alginate 1kg, water 87kg.Cyflufenamid, bupirimate, aromatic solvent naphtha, polyoxyethylene styryl phenyl ether are mixed into even oil phase; Propane diols, sodium alginate, water are mixed into even water; Water is joined in the oil phase, shear namely through high-speed shearing machine.
Embodiment 9:6% cyflufenamid bupirimate aqueous emulsion
Cyflufenamid 1kg, bupirimate 5kg, solvent naphtha 180#5kg, peaceful newborn 700#10kg, ethylene glycol 2kg, Sodium Polyacrylate 2kg, water 75kg.Cyflufenamid, bupirimate, No. 180, solvent naphtha, peaceful newborn 700# are mixed into even oil phase; Ethylene glycol, Sodium Polyacrylate, water are mixed into even water; Water is joined in the oil phase, shear namely through high-speed shearing machine.
Embodiment 10:18% cyflufenamid bupirimate aqueous emulsion
Cyflufenamid 2kg, bupirimate 16kg, epoxidized soybean oil 10kg, agricultural newborn 0203B10kg, glycerine 3kg, xanthans 5kg, water 54kg.Cyflufenamid, bupirimate, epoxidized soybean oil, 0203B are mixed into even oil phase; Glycerine, xanthans, water are mixed into even water; Water is joined in the oil phase, shear namely through high-speed shearing machine.
Embodiment 11:30% cyflufenamid bupirimate aqueous emulsion
Get cyflufenamid 2kg, bupirimate 28kg, agricultural newborn 0203B30kg, starch 4kg, water 36kg.Cyflufenamid, bupirimate, agricultural newborn 0203B are mixed into even oil phase; Starch, water are mixed into even water; Water is joined in the oil phase, shear namely through high-speed shearing machine.
Embodiment 12:1% cyflufenamid bupirimate suspending agent
Get cyflufenamid 0.1kg, bupirimate 0.9kg, lauryl sodium sulfate 1kg, carboxymethyl cellulose 1kg, organobentonite 0.1kg, water 96.9kg.Be medium with water, cyflufenamid, bupirimate, lauryl sodium sulfate, carboxymethyl cellulose and organobentonite are fully pulverized, grind, evenly mixed, namely obtain 1kg cyflufenamid bupirimate suspending agent.
Embodiment 13:36% cyflufenamid bupirimate suspending agent
Cyflufenamid 3kg, bupirimate 33kg, fat alcohol polyethylene ether 4kg, carboxymethyl cellulose 7kg, polyvinyl alcohol 1kg, water 52kg.Be medium with water, cyflufenamid, bupirimate, fat alcohol polyethylene ether, carboxymethyl cellulose and polyvinyl alcohol are fully pulverized, grind, evenly mixed, namely obtain 36kg cyflufenamid bupirimate suspending agent.
Embodiment 14:40% cyflufenamid bupirimate suspending agent
Cyflufenamid 4kg, bupirimate 36kg, dodecyl sodium sulfate 5kg, sodium methylene bis-naphthalene sulfonate 8kg, polyvinyl alcohol 2kg, water 45kg.Be medium with water, cyflufenamid, bupirimate, dodecyl sodium sulfate, sodium methylene bis-naphthalene sulfonate and polyvinyl alcohol are fully pulverized, grind, evenly mixed, namely.
Embodiment 15:52% cyflufenamid bupirimate suspending agent
Cyflufenamid 4kg, bupirimate 48kg, polyoxyethylene nonylphenol ether 2kg, sodium methylene bis-naphthalene sulfonate 5kg, polyvinyl alcohol 0.5kg, water 40.5kg.Be medium with water, cyflufenamid, bupirimate, polyoxyethylene nonylphenol ether, sodium methylene bis-naphthalene sulfonate, polyvinyl alcohol are fully pulverized, grind, evenly mixed, namely.
Embodiment 16:1% cyflufenamid bupirimate wetting powder
Cyflufenamid 0.1kg, bupirimate 0.9kg, sorbitan fatty acid ester APEO 4kg, calcium lignosulfonate 6kg, white carbon 89kg.Cyflufenamid, bupirimate, sorbitan fatty acid ester APEO, calcium lignosulfonate and white carbon are fully mixed, pulverize through airslide disintegrating mill, namely.
Embodiment 17:27% cyflufenamid bupirimate wetting powder
Get cyflufenamid 3kg, bupirimate 24kg, moistening penetrant t 4kg, calcium lignosulfonate 7kg, kaolin 62kg.Cyflufenamid, bupirimate, moistening penetrant t, calcium lignosulfonate, kaolin are fully mixed, pulverize through airslide disintegrating mill, namely.
Embodiment 18:48% cyflufenamid bupirimate wetting powder
Cyflufenamid 3kg, bupirimate 45kg, Nekal BX 3kg, sodium phosphate trimer 6kg, precipitated calcium carbonate 43kg.Cyflufenamid, bupirimate, Nekal BX, sodium phosphate trimer, precipitated calcium carbonate are fully mixed, pulverize through airslide disintegrating mill, namely.
Embodiment 19:80% cyflufenamid bupirimate wetting powder
Cyflufenamid 5kg, bupirimate 75kg, neopelex 2kg, sodium phosphate trimer 4kg, precipitated calcium carbonate 14kg.Cyflufenamid, bupirimate, neopelex, sodium phosphate trimer, precipitated calcium carbonate are fully mixed, pulverize through airslide disintegrating mill, namely.
Embodiment 20:1% cyflufenamid bupirimate water dispersible granules
Get cyflufenamid 0.1kg, bupirimate 0.9kg, Fluhyzon formaldehyde condensation products 8kg, carboxymethyl cellulose 10kg, urea 5kg, PEG1kg, attapulgite 75kg, mix, pulverize, mediate, add granulation in the fluidized bed prilling dryer, drying, screening through air-flow, namely.
Embodiment 21:30% cyflufenamid bupirimate water dispersible granules
Get cyflufenamid 3kg, bupirimate 27kg, lauryl sodium sulfate 4kg, sodium carboxymethylcellulose 8kg, ammonium sulfate 2kg, precipitated calcium carbonate 56kg, mix, pulverize, mediate, add granulation in the fluidized bed prilling dryer, drying, screening through air-flow, namely.
Embodiment 22:50% cyflufenamid bupirimate water dispersible granules
Get cyflufenamid 5kg, bupirimate 45kg, Nekal BX 3kg, sodium phosphate trimer 6kg, white carbon 41kg, mix, pulverize, mediate, add granulation in the fluidized bed prilling dryer, drying, screening through air-flow, namely.
Embodiment 23:75% cyflufenamid bupirimate water dispersible granules
Get cyflufenamid 5kg, bupirimate 70kg, Nekal BX 3kg, sodium phosphate trimer 6kg, PEG2kg, diatomite 14kg, mix, pulverize, mediate, add granulation in the fluidized bed prilling dryer, drying, screening through air-flow, namely.
Embodiment 24:80% cyflufenamid bupirimate water dispersible granules
Get cyflufenamid 5kg, bupirimate 75kg, Nekal BX 2kg, sodium phosphate trimer 5kg, magnesium chloride 2kg, diatomite 11kg, mix, pulverize, mediate, add granulation in the fluidized bed prilling dryer, drying, screening through air-flow, namely.
Embodiment 25: bactericide field efficacy provided by the invention is measured
In order to further specify the effect of the present composition, carry out the experiment of field efficacy.
The embodiment of the invention 2～24 each bactericide that provide and the agent of cyflufenamid list and the agent of the bupirimate list control efficiency to crop powdery mildew is contrasted, wherein, aqueous emulsion is all adopted in the agent of cyflufenamid list and the agent of bupirimate list, the mass fraction of cyflufenamid is 20% in the cyflufenamid aqueous emulsion, and the mass fraction of bupirimate is 25% in the bupirimate aqueous emulsion.Each is handled dosage and is 17g/ mu in active ingredient, the consumption that is the agent of cyflufenamid list and the agent of bupirimate list is respectively 17g/ mu in active ingredient, and the consumption of the embodiment of the invention 2～24 each bactericide that provide also is 17g/ mu in active ingredient.3 repetitions are established in each processing, and statistics is respectively handled the percentage that the sick control of dialogue powder tells on, and statistics is 3 mean values that repeat.Each handle to crop powdery mildew to prevent and treat the result as shown in table 2.
Each handles table 2 the crop powdery mildew control efficiency
| ? | Powdery mildew of cucumber | Grape powdery mildew | Apple mildew | Wheat powdery mildew |
| The agent of cyflufenamid list | 72.3% | 74.2% | 56.4% | 61.8% |
| The agent of bupirimate list | 61.5% | 63.4% | 68.5% | 69.5% |
| The bactericide that embodiment 3 provides | 85.6% | 83.5% | 85.2% | 86.5% |
| The bactericide that embodiment 9 provides | 87.2% | 86.5% | 84.6% | 87.2% |
| The bactericide that embodiment 13 provides | 85.6% | 86.4% | 88.7% | 87.6% |
| The bactericide that embodiment 17 provides | 86.8% | 87.3% | 87.5% | 85.4% |
| The bactericide that embodiment 21 provides | 88.5% | 89.5% | 87.8% | 86.2% |
As shown in Table 2, the embodiment of the invention 3,9,13,17 or 21 bactericide that provide are compared with single agent the control efficiency of crop powdery mildew, be significantly increased, thereby further specifying bactericidal composition provided by the invention compares with single agent and has produced obvious synergistic effect, can reduce the consumption of agricultural chemicals, thereby reduce production costs and saved the labour.
The above only is preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a bactericidal composition is characterized in that, comprises cyflufenamid and bupirimate.
2. bactericidal composition according to claim 1 is characterized in that, the mass ratio of described cyflufenamid and described bupirimate is 1:(5～15).
3. bactericidal composition according to claim 1 is characterized in that, the mass ratio of described cyflufenamid and described bupirimate is 1:(9～12).
4. one kind comprises the bactericide as each described bactericidal composition of claim 1～3.
5. bactericide according to claim 4 is characterized in that, the formulation of described bactericide is missible oil, aqueous emulsion, suspending agent, wetting powder or water dispersible granules.
6. bactericide according to claim 5 is characterized in that, the mass fraction of bactericidal composition described in the described missible oil is 20%～90%.
7. bactericide according to claim 5 is characterized in that, the mass fraction of bactericidal composition described in the described aqueous emulsion is 1%～30%.
8. bactericide according to claim 5 is characterized in that, the mass fraction of bactericidal composition described in the described suspending agent is 1%～40%.
9. bactericide according to claim 5 is characterized in that, the mass fraction of bactericidal composition described in the described wetting powder is 1%～80%.
10. bactericide according to claim 5 is characterized in that, the mass fraction of bactericidal composition described in the described water dispersible granules is 1%～80%.
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| CN103734179A (en) * | 2013-12-30 | 2014-04-23 | 孙蒙蒙 | Bupirimate-contained bactericidal and insecticidal composition |
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| CN103734179A (en) * | 2013-12-30 | 2014-04-23 | 孙蒙蒙 | Bupirimate-contained bactericidal and insecticidal composition |
| CN103734179B (en) * | 2013-12-30 | 2016-01-13 | 南京南翔科技开发有限公司 | A kind of Fungicidal insecticidal composition containing bupirimate |
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