CN102919255A - Agricultural compound fungicide - Google Patents
Agricultural compound fungicide Download PDFInfo
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- CN102919255A CN102919255A CN2012104274514A CN201210427451A CN102919255A CN 102919255 A CN102919255 A CN 102919255A CN 2012104274514 A CN2012104274514 A CN 2012104274514A CN 201210427451 A CN201210427451 A CN 201210427451A CN 102919255 A CN102919255 A CN 102919255A
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- pyraclostrobin
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- pyrrole bacterium
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Abstract
The invention belongs to the field of agricultural fungicide and particularly relates to an agricultural compound fungicide. The effective components of the fungicide are pyraclostrobin and fenpyrazamine which are compounded. The weight ratio of the two components is 1: 0.1-10, preferably, 1: 2-3. The prepared fungicide expands fungicide spectrum and has high activity on botrytis cinerea, rhizoctonia, puccinia, ustilago, tilletia, corticium, pyrenophora and other pathogenic fungi, and is remarkable in synergy which is not simple composition of activity of the components. The fungicide is strong in preventive treatment efficacy, long in effect lasting time, small in resistance risk and capable of reducing field usage of effective components, reducing production and using cost and reducing fungicide residue and environment pollution. The fungicide is favorable for overcoming and delaying production of bacteria drug resistance and is safe for crops due to effective components with different action mechanisms.
Description
Technical field
The invention belongs to the disinfectant use in agriculture field, particularly a kind of agricultural double-crossed disinfectant.
Background technology
Along with the popularization of agricultural chemicals is used with a large amount of, many drawbacks such as the bactericide kind of single-activity component is narrow at the bactericidal range that the disinfectant use in agriculture control exists, control efficiency is poor, dispenser dosage Da Yi develops immunity to drugs and poisoning, application times are many, weighting ring environment pollution have obviously caused the significantly increase of cost in a large amount of underproduction of crops and the production.For the upper germ that produces resistance of control agricultural, a kind of way is to release new and the new component of existing kind without cross resistance.But the development cost of new active ingredient is high, and the construction cycle is long, and does not all catch up with the speed that germ produces resistance forever.Other way is rotated etc. such as crop allocation adjustment, different agricultural chemicals, in the process of practical operation, is difficult to really play obvious effect.
Pyraclostrobin is the New-type wide-spectrum bactericide.The mechanism of action is novel, is the mitochondrial respiratory inhibitor, namely by stoping electronics to shift in cytochrome b cl is synthetic.Have protection, treatment, blade infiltration conduction.Pyraclostrobin missible oil shows that through the field control effectiveness test result powdery mildew of cucumber, downy mildew and banana freckle, leaf spot are had preferably control efficiency.The dosage of preventing and treating powdery mildew of cucumber, downy mildew is active ingredient 75～150g/hm2, behind the thin up in the their early stage even spraying.The active ingredient concentration of control banana freckle, leaf spot is 83.3-250mg/kg (extension rate is 1000-3000 times), begins spraying in their early stage.Use safety under the recommended dose, have no poisoning and occur.
Amine benzene pyrrole bacterium ketone is new type bactericide, is used for fruits and vegetables, and ornamental crop, the tomato of greenhouse culture for example, and eggplant, the fruit such as the vegetable crop such as capsicum and cucurbit and grape, lettuce, strawberry have excellent prevention and control ability to botrytis.
Summary of the invention
The present invention aims to provide a kind of complex composition, and be made into that resistance risk is little, cost is low, good drug efficacy, the lasting period is long, environmental pollution is little agricultural double-crossed disinfectant.
Technical scheme of the present invention is: agricultural double-crossed disinfectant, its active ingredient are that pyraclostrobin and amine benzene pyrrole bacterium ketone are composite.Both weight ratios are 1:0.1～10, preferred 1:2～3.
Above-mentioned active ingredient pyraclostrobin and amine benzene pyrrole bacterium ketone all can be buied by various commercial channel.
Bactericide of the present invention can be prepared into any one formulation that is fit to agricultural use by known method, and formulation is wetting powder, water dispersible granules or aqueous suspension agent preferably.
In above-mentioned bactericide, except active ingredient pyraclostrobin and amine benzene pyrrole bacterium ketone, also comprise the Agrotechnical formulation auxiliary element.Active ingredient pyraclostrobin and amine benzene pyrrole bacterium ketone shared total weight percentage in described bactericide is 1%～90%, preferred 40%～60%.
Described pesticidal preparations auxiliary element comprises carrier and auxiliary agent.
Described carrier is one or both the mixture in water or the filler, the preferred deionized water of water.
Described filler is selected from the mixture of one or more compositions in kaolin, diatomite, bentonite, attapulgite, white carbon, starch or the precipitated calcium carbonate.
Described auxiliary agent comprises a kind of surfactant at least, according to different use occasions and demand, also can add other functional aids such as antifreezing agent, thickener, stabilizing agent, disintegrant, defoamer.
Described surfactant is selected from one or more in emulsifier, dispersant, wetting agent or the bleeding agent.Above-mentioned surfactant is common non-ionic surface active agent or single dose or the complex preparation of anion surfactant.
Described other functional aids are selected from antifreezing agent, thickener, stabilizing agent, disintegrant or the defoamer one or more.
Described emulsifier is selected from OP series phosphate (polyoxyethylene nonylphenol ether phosphate), 600# phosphate (phenyl phenol polyoxyethylene ether phosphate), styrene polyoxyethylene ether ammonium sulfate salt, alkyl biphenyl ether disulfonic acid magnesium salts, triethanolamine salt, the newborn 400#(benzyl dimethyl phenol polyoxy ethyl ether of farming), Nongru-700 #(alkylphenol-formaldehyde resin polyoxy ethyl ether), peaceful newborn 36#(phenethyl fluosite polyoxy ethyl ether), the newborn 1600#(phenethyl phenol polyoxy ethyl polypropylene-base ether of farming), ethylene oxide-propylene oxide block copolymer, OP series (polyoxyethylene nonylphenol ether), BY series (castor oil polyoxyethylene ether), the newborn 33#(alkylaryl polyoxyethylene poly-oxygen propylene aether of farming), sapn series (sorbitol anhydride monostearate), the mixture of one or more compositions in tween series (anhydrous sorbitol resin acid ester APEO) or the AEO series (fatty alcohol-polyoxyethylene ether).
Described dispersant is selected from the mixture of one or more compositions in polycarboxylate, lignosulfonates, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, alkyl benzene calcium sulfonate, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, aliphatic acid polyethenoxy ether or the fatty acid glyceride APEO.
Described wetting agent is selected from the mixture of one or more compositions in lauryl sodium sulfate, neopelex, Nekal BX, wetting and penetrating agent F, spaonin powder, silkworm excrement or the soapberry powder.
Described bleeding agent is selected from the mixture of one or more compositions in penetrating agent JFC (fatty alcohol-polyoxyethylene ether), penetrant t (Maleic Acid Diisooctyl sulfonate), azone or the organosilicon.
Described antifreezing agent is selected from the mixture of one or more compositions in ethylene glycol, propane diols, glycerine or the urea.
Described thickener is selected from the mixture of one or more compositions in gelatin, sodium carboxymethylcellulose, hydroxyethylcellulose, Sodium Polyacrylate, modified starch, xanthans, bentonite, silica or the Magnesiumaluminumsilicate.
Described stabilizing agent is selected from epoxidized soybean oil, the mixture of one or more compositions in epoxychloropropane, BHT, ethyl acetate or the triphenyl phosphate.
Described disintegrant is selected from the mixture of one or more compositions in bentonite, urea, ammonium sulfate, aluminium chloride, low-substituted hydroxypropyl cellulose, lactose, citric acid, succinic acid or the sodium bicarbonate.
Described defoamer is selected from the mixture of one or more compositions in silicone oil, silicone compound, C10～C20 saturated fat acid compounds or C8～C10 aliphatic alcohols compound.
Material described above all can be buied by market.
Bactericide provided by the invention is mainly used in preventing and treating powdery mildew of cucumber, downy mildew and banana freckle, leaf spot etc., also can be used for ornamental sterilizing, grape born of the same parents bacterium also there is fine control efficiency, and can reduces the application dosage of each active ingredient, reduce cost, reduce and pollute.
Beneficial effect of the present invention is:
1, enlarges fungicidal spectrum, the pathomycetes such as grape born of the same parents bacterium, Rhizoctonia, Puccinia, Ustilago, Tilletia, corticium, nuclear cavity Pseudomonas are all had very high activity;
2, synergistic effect is obvious, is not the simple superposition of each composition activity, but significant synergistic effect is arranged;
3, control strong drug action, holding effect is long period, and resistance risk is little;
4, the field consumption of active ingredient descends, and has reduced production and use cost, reduces residue of pesticide and environmental pollution;
5, the active ingredient by different mechanism of action forms, and is conducive to overcome and delays the drug-fast generation of germ, to crop safety.
Embodiment
At first indoor measurement is with pyraclostrobin and the control efficiency of the different proportionings of amine benzene pyrrole bacterium ketone to cucumber downy mildew.Test method is as follows: with bacterium of downy mildew of cucumber after PDA medium activation, get the bacterium dish from its edge with card punch and place on the PDA medium, behind its growth 48h, the card punch that with diameter is 5mm is got the bacterium dish from its colony edge, access is inverted on the good PDA medium that contains different proportioning drug concentrations processing in advance, and place the hot-house culture case to cultivate, after inoculation 1,3,5d reduces respectively the mycelial growth situation, and measure colony diameter.Contrast CK1(pyraclostrobin is set) and CK2(amine benzene pyrrole bacterium ketone), pyraclostrobin is done respectively 5 concentration for the treatment of from each proportioning of the different proportionings of amine benzene pyrrole bacterium ketone, each concentration for the treatment of is done 4 repetitions.Control efficiency is converted into probability value (y), liquor strength (μ g/ml) converts logarithm value (x) to, set up inhibition probability value and its concentration logarithm regression equation (toxicity regression formula) of different proportionings, calculate concentration EC50 value in the inhibition of each proportioning with method of least squares, and obtain the coefficient of synergism SR of different proportionings, according to the synergistic effect of coefficient of synergism evaluation built agent, determine best proportioning.
Disease index, control efficiency, coefficient of synergism computing formula are as follows:
A represents pyraclostrobin in the following formula, and B represents amine benzene pyrrole bacterium ketone, and a, b represent respectively pyraclostrobin and the ratio of amine benzene pyrrole bacterium ketone in mixture.
SR makes evaluation according to coefficient of synergism: when SR greater than 1.5 the time, show that mixture has synergistic effect, when SR is addition 0.5～1.5 the time, when SR is antagonism less than 0.5 the time.
Pyraclostrobin is as shown in table 1 to the toxicity test result of cucumber downy mildew from the different proportionings of amine benzene pyrrole bacterium ketone, and the synergy measurement result is as shown in table 2.Wherein, CK1 is the pyraclostrobin single dose, and CK2 is amine benzene pyrrole bacterium ketone single dose.
Table 1 pyraclostrobin and the toxicity test result of the different proportionings of amine benzene pyrrole bacterium ketone to cucumber downy mildew
| Medicament | The vertical regression equation Y=a+bX of poison | EC50/μg·mL-1 |
| CK1 | 4.4503+0.4723X | 14.5814 |
| CK2 | 4.3855+0.5562X | 12.7292 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:0.05 | 4.5735+0.4243X | 10.1201 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:0.1 | 4.3453+0.7077X | 8.4161 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:0.5 | 4.5315+0.5584X | 6.9024 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:1 | 4.6567+0.6338X | 3.4806 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:2 | 4.7453+0.7077X | 2.2903 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:3 | 4.7169+0.6716X | 2.6396 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:4 | 4.6896+0.4583X | 4.7565 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:6 | 3.9255+1.2815X | 6.8945 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:8 | 3.8353+1.3741X | 7.0404 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:10 | 3.6850+1.5472X | 7.0778 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:12 | 3.7437+1.2041X | 11.0497 |
Table 2 pyraclostrobin and the synergy measurement result of the different proportionings of amine benzene pyrrole bacterium ketone to cucumber downy mildew
| Medicament | Actual observation value EC50 | Theoretical value EC (th) 50 | Coefficient of synergism SR |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:0.05 | 10.1201 | 14.48106144 | 1.430920785 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:0.1 | 8.4161 | 14.39103543 | 1.709941116 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:0.5 | 6.9024 | 13.90687942 | 2.014788975 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:1 | 3.4806 | 13.59249206 | 3.905215211 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:2 | 2.2903 | 13.29200493 | 5.803608668 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:3 | 2.6396 | 13.14668902 | 4.980561076 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:4 | 4.7565 | 13.06101466 | 2.745929709 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:6 | 6.8945 | 12.96445832 | 1.880405877 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:8 | 7.0404 | 12.91143026 | 1.833905781 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:10 | 7.0778 | 12.87791041 | 1.819479275 |
| Pyraclostrobin: amine benzene pyrrole bacterium ketone=1:12 | 11.0497 | 12.85480613 | 1.163362456 |
Can find out from table 1 and table 2: pyraclostrobin and amine benzene pyrrole bacterium ketone weight ratio be 1:0.1～10 o'clock coefficient of synergism all greater than 1.5, show as synergistic effect, synergy is the most obvious in 1:2～3 weight ratio scopes.The application weight ratio is that the pyraclostrobin of 1:0.1～10 and the complex preparation control cucumber downy mildew of amine benzene pyrrole bacterium ketone have reasonability and feasibility.
Adopt said method to measure respectively it to the control efficiency of powdery mildew of cucumber, banana freckle, leaf spot and grape born of the same parents bacterium, and calculate coefficient of synergism in the different ratio ranges, all drawing pyraclostrobin and amine benzene pyrrole bacterium ketone is that 1:0.1～10 o'clock show as synergistic effect, the 1:2～3 o'clock the most obvious conclusion of synergy in weight ratio.
Specify the present invention below in conjunction with embodiment.Percentage all is weight percentage among the embodiment, and the treatment dosage of field efficacy is effective ingredient consumption.
Embodiment 1:(50% pyraclostrobin amine benzene pyrrole bacterium ketone wetting powder) 1:2.6
Component and content: pyraclostrobin, 14%; Amine benzene pyrrole bacterium ketone, 36%; Wetting agent lauryl sodium sulfate, 5%; Dispersant calcium lignosulfonate, 8%; Filler is selected white carbon, 18%, kaolin, surplus.
Embodiment 2:(70% pyraclostrobin amine benzene pyrrole bacterium ketone wetting powder) 1:6
Component and content: pyraclostrobin, 10%; Amine benzene pyrrole bacterium ketone, 60%; Wetting agent neopelex, 3%; Dispersant alkyl benzene calcium sulfonate, 7%; Emulsifier farming newborn 400#, 5%; Filler is selected white carbon, 10%, precipitated calcium carbonate, surplus.
Embodiment 3:(11% pyraclostrobin amine benzene pyrrole bacterium ketone wetting powder) 1:0.1
Component and content: pyraclostrobin, 10%; Amine benzene pyrrole bacterium ketone, 1%; Wetting agent is selected Nekal BX, neopelex and wetting and penetrating agent F, and consumption is respectively 3%, 5% and 1%; Dispersant is selected polycarboxylate and fatty acid glyceride APEO, and consumption is respectively 17 and 13%; Emulsifier is selected polyoxyethylene nonylphenol ether phosphate and fatty alcohol-polyoxyethylene ether, and consumption is respectively 7% and 3%; Filler is selected diatomite, 20%, starch, surplus.
The preparation method of above-described embodiment 1～3 is: the component and the percentage by weight thereof that provide by embodiment, active ingredient amine benzene pyrrole bacterium ketone and pyraclostrobin are added in the filler, and add therein the auxiliary agents such as wetting agent, dispersant, emulsifier, mix, behind air-flow crushing, mix again making wetting powder.Capital equipment has mixer, airslide disintegrating mill.
Embodiment 4:(60% pyraclostrobin amine benzene pyrrole bacterium ketone water dispersible granules) 1:2
Component and content: pyraclostrobin, 20%; Amine benzene pyrrole bacterium ketone, 40%; Wetting agent dodecylbenzene sodium sulfonate, 3%; Dispersant alkylnaphthalene sulfonate formaldehyde condensation products, 8%; Filler attapulgite, surplus.
Embodiment 5:(90% pyraclostrobin amine benzene pyrrole bacterium ketone water dispersible granules) 1:8
Component and content: Diflufenican, 10%; Amine benzene pyrrole bacterium ketone, 80%; Wetting agent spaonin powder, 3%; Dispersant naphthalene sulfonic acid-formaldehyde condensation product sodium salt, 2%; Filler attapulgite, surplus.
The preparation method of above-described embodiment 4～5 is: the component and the percentage by weight thereof that provide by embodiment, active ingredient amine benzene pyrrole bacterium ketone and pyraclostrobin are added in the filler, and add therein the auxiliary agents such as wetting agent, dispersant, mix, behind air-flow crushing, add 10～25% water, then make the water dispersible granules product through kneading, granulation, drying, screening; The powder that maybe will pulverize is water spray, granulation, drying in boiling granulator, and afterwards screening makes product.Capital equipment has mixer, airslide disintegrating mill, kneader, Squeezinggranulator, drying room or fluid-bed drying, or boiling granulator, screening machine.
Embodiment 6:(40% pyraclostrobin amine benzene pyrrole bacterium ketone aqueous suspension agent) 1:3
Component and content: pyraclostrobin, 10%; Amine benzene pyrrole bacterium ketone, 30%; Emulsifier farming newborn NP-10,2%; Dispersant polycarboxylate, 8%; Thickener is selected xanthans and aluminium-magnesium silicate, and consumption is respectively 0.1 and 2%; Antifreeze glycol, 5%; Defoamer silicone compound, 0.2%; Water, surplus.
Embodiment 7:(5.5% pyraclostrobin amine benzene pyrrole bacterium ketone suspended emulsion) 1:10
Component and content: pyraclostrobin, 0.5%; Amine benzene pyrrole bacterium ketone, 5%; Emulsifier farming newborn 1600#, 16%; Dispersant alkylphenol polyoxyethylene, 17%; Thickener is selected xanthans and aluminium-magnesium silicate, and consumption is respectively 4% and 7%; Antifreezing agent urea, 11%; Defoamer silicone oil, 9%; Water, surplus.
The preparation method of above-described embodiment 6～7 is: the component and the percentage by weight thereof that provide by embodiment, the auxiliary agents such as active ingredient amine benzene pyrrole bacterium ketone and pyraclostrobin, emulsifier, dispersant, thickener, antifreezing agent, defoamer are placed reactor successively, adding water mixes, through high speed shear, the wet method sand milling, last homogeneous filtration namely gets product.Capital equipment is batching kettle, colloid mill or homogeneous mixer, sand mill.
The below uses embodiment 1,4,6 medicaments and Comparative Examples 1～2 medicament by extension rate shown in the table 3 cucumber downy mildew to be carried out the land for growing field crops spray testing, and so that beneficial effect of the present invention to be described better, result of the test is as shown in table 3 below.Wherein: embodiment 1:50% pyraclostrobin amine benzene pyrrole bacterium ketone wetting powder, embodiment 4:60% pyraclostrobin amine benzene pyrrole bacterium ketone water dispersible granules, embodiment 6:40% pyraclostrobin amine benzene pyrrole bacterium ketone aqueous suspension agent, Comparative Examples 1:30% amine benzene pyrrole bacterium ketone aqueous suspension agent, Comparative Examples 2:20% pyraclostrobin water dispersible granules.
Establish embodiment 1,4,6 medicaments, Comparative Examples 1～2 medicament in this test and do not use totally 6 processing of any medicament, each is processed and repeats 4 times, processes the residential quarter for totally 24, implements the spray medicine in the cucumber downy mildew their early stage.Every processing residential quarter is got 3 points at random, gets 6 strain cucumber at every, at blade and the stem scab number, lesion area of investigation in 10 days, 20 days, 30 days after the medication on the cucumber, calculates control efficiency with disease index respectively.
The scab grade scale is with reference to State Standard of the People's Republic of China " pesticide field efficacy medicine test criterion ".The blade occurring degree is divided into 6 grades, and 0 grade: blade is without scab; 1 grade: lesion area accounts for whole blade area below 5%; 2 grades: lesion area accounts for whole blade area 6%～10%; 3 grades: lesion area accounts for whole blade area 11%～25%; 4 grades: lesion area accounts for whole blade area 26%～50%; 5 grades: lesion area accounts for whole blade area more than 50%.When carrying out state of an illness investigation, if any the leaf abscission of seriously catching an illness, take leaf scar as counting in the statistical data according to the blade as the highest morbidity progression.Disease refers to calculate as follows with control efficiency:
Table 3 different disposal is to the control efficiency of cucumber downy mildew
Can find out that from table 3 result of the test dispenser is after 10 days, 20 days, 30 days, embodiment 1,4,6 medicaments to the control efficiency of cucumber downy mildew all more than 85%, apparently higher than the single dose medicament of Comparative Examples 1～2.Embodiment 1,4,6 medicament using dosages are low, and only for 1/3 of example contrast 1～2 medicament just can reach good control efficiency, and the medicament efficiency time is long, and dispenser still reaches fine control efficiency after 30 days.Experimental session is observed, and without poisoning, safety is good to cucumber for embodiment 1～3 medicament.The above results shows the advantage that has significant synergies after composite by amine benzene pyrrole bacterium ketone and pyraclostrobin and prolong drug effect.
Claims (6)
1. an agricultural double-crossed disinfectant is characterized in that, its active ingredient is that pyraclostrobin and amine benzene pyrrole bacterium ketone are composite, and both weight ratios are 1:0.1～10.
2. bactericide according to claim 1 is characterized in that, the weight ratio of described active ingredient pyraclostrobin and amine benzene pyrrole bacterium ketone is 1:2～3.
3. bactericide according to claim 1 and 2 is characterized in that, described active ingredient pyraclostrobin and amine benzene pyrrole bacterium ketone shared total weight percentage in described bactericide is 1%～90%, and all the other are the pesticidal preparations auxiliary element.
4. bactericide according to claim 3 is characterized in that, described active ingredient pyraclostrobin and amine benzene pyrrole bacterium ketone shared total weight percentage in described bactericide is 40%～60%.
5. bactericide according to claim 3 is characterized in that, described pesticidal preparations auxiliary element comprises carrier and auxiliary agent.
6. bactericide according to claim 3 is characterized in that, its formulation is a kind of in wetting powder, water dispersible granules or the aqueous suspension agent.
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| CN105007724A (en) * | 2013-02-28 | 2015-10-28 | 住友化学株式会社 | Solid agrochemical preparation |
| CN105309457A (en) * | 2015-06-09 | 2016-02-10 | 深圳诺普信农化股份有限公司 | Sterilization composition with fenpyrazamine serving as main ingredient |
| CN107494566A (en) * | 2017-07-05 | 2017-12-22 | 南京红太阳股份有限公司 | Bactericidal composition and its application of a kind of pyrrole bacterium ketone of benzene containing amine and benzene metsulfovax |
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Application publication date: 20130213 |