CN102113485B - Bactericidal composition containing ethirimol and kresoxim-methyl - Google Patents
Bactericidal composition containing ethirimol and kresoxim-methyl Download PDFInfo
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- CN102113485B CN102113485B CN 200910217214 CN200910217214A CN102113485B CN 102113485 B CN102113485 B CN 102113485B CN 200910217214 CN200910217214 CN 200910217214 CN 200910217214 A CN200910217214 A CN 200910217214A CN 102113485 B CN102113485 B CN 102113485B
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- kresoxim
- methyl
- bactericidal composition
- phonetic phenol
- ethirimol
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Abstract
The invention discloses a bactericidal composition containing ethirimol and kresoxim-methyl and a preparation method and application thereof. The bactericidal composition is characterized by containing the ethirimol, the kresoxim-methyl and other aids, wherein the weight ratio of the ethirimol to the kresoxim-methyl is (0.1-50):(0.1-60). The bactericidal composition can be applied to various diseases of cereals, melons, fruits, vegetables and the like. The composition has a wide application range, low cost and good effects. Indoor tests prove that: the composition has obvious synergy. Moreover, the compounding of the ethirimol and the kresoxim-methyl is not reported in China and foreign countries, so the bactericidal composition is provided.
Description
Technical field
The invention belongs to the agriculture chemical compounding field, relate to a kind of bactericidal composition and application thereof, especially a kind of bactericidal composition and application thereof take the phonetic phenol of second and kresoxim-methyl as main active.
Background technology
Using chemical agent is the most effectively means of control fungal diseases of plants.But long-term use single chemical bactericide continuously high dose, cause easily the problems such as residual, the environmental pollution of medicament and anti-pesticide resistance fungi development.Reasonably chemical bactericide is composite or be mixed and have the expansion fungicidal spectrum, improve control efficiency, prolong the optimum period for applying fertilizer, reduce dosage, reduce poisoning, reduce residual, delay Antifungal resistance and the positive characteristics such as drug-fast generation and development, bactericide compounded or to be mixed be the most one of the effective method that addresses the above problem.Exploitation new product bactericide price is constantly soaring, and by contrast, exploitation is efficient with research, the composite of low toxicity, low-residual has small investment with being mixed, and the lead time is short and be subject to domestic and international attention, the numerous and confused dynamics that develops that strengthens.
The phonetic phenol of second (ethirimol) is a kind of adenosine deaminase inhibitors, systemic fungicide.CAS number: 23947-60-6, chemical name: 5-butyl-2-ethylamino-4-hydroxyl-6-methylpyrimidine, the phonetic phenol of second is efficient mitochondrial respiratory inhibitor, and its activity is present 3 times with series bactericidal agent, can control most of diseases such as Ascomycetes, Basidiomycetes, deuteromycetes, Oomycete.The phonetic phenol of second has very strong inhibitory action to the growth of spore germination and leaf intramatrical mycelium, has protection and therapeutic activity.The characteristics that long, resistance of rainwater washing against of permeability and local systemic activity, lasting period is arranged because of this medical instrument, the lasting period can reach 10～14d after the dispenser, is widely used in preventing and treating the disease on wheat, paddy rice, peanut, grape, vegetables, potato, banana, lemon, coffee, fruit tree, walnut, tea tree, tobacco and ornamental plants, lawn and other field crops.Yet the intrinsic resistance risk of the phonetic phenol of second is very high, if long-term single use unavoidably can produce resistance, and this medicine cost is high, popularizes and promote relatively difficulty in each field of agricultural production.Be to reduce production costs by carrying out composite with other effective bactericide, delay the effective way that pesticide resistance produces, prolongs its service life.
Kresoxim-methyl (kresoxim-methyl) belongs to novel half systemic fungicide, with the gaseous form diffusion, both can stop germ spore germination, germ tube elongation and the intrusion of blade, fruit surface, plays preventive effect; Can penetrate again wax layer and epidermis or enter in the body by pore; suppress to have invaded pathogen growth, make the mycelia atrophy, suppress to produce spore; the spore that has produced can not be sprouted; reach the treatment eradicant action, have prolection and can be used as control therapeutic agent and eradicant, fungicidal spectrum is wide; has very high activity; most of fungies are extremely sensitive to it, and powdery mildew, anthracnose, scab are had special efficacy, and can prevent and treat leaf spot, ring spot, downy mildew, epidemic disease etc.After the use, there is the crop leaf of promotion to enlarge afforested area, increases the photosynthesis texts.Being mixed property is good, can use with other insecticidal bactericide; Fully different from modes of action such as conventional amino formyl imidazole class medicaments, there is not cross resistance.To crop safety, florescence and fruit phase use and can not produce poisoning.Being applicable to various vegetables, fruit and flowers uses.
Summary of the invention
The present invention be directed to the problems referred to above a bactericidal composition that contains the phonetic phenol of second and kresoxim-methyl applied widely, that cost is low, effective is provided.
A further object of the invention provides the purposes of this bactericidal composition.
A kind of bactericidal composition, it contains the phonetic phenol of second and kresoxim-methyl, and wherein the weight ratio of the phonetic phenol of second and kresoxim-methyl is 0.1～50: 0.1～60.
Described bactericidal composition, wherein the more excellent weight ratio of the phonetic phenol of second and kresoxim-methyl is 1～40: 1～50.
Described bactericidal composition, wherein active ingredient accounts for the weight ratio of preparation and is: 2～70%.
Described bactericidal composition, the phonetic phenol of second and kresoxim-methyl and auxiliary agent, carrier etc. are processed into any one formulation that allows on the agricultural chemicals.
Described bactericidal composition is characterized in that the formulation that can be processed into is missible oil, suspending agent, aqueous emulsion, microemulsion, microcapsule formulations, wetting powder and water dispersible granules.
The application of described bactericidal composition aspect the multiple diseases of control Cereal and fruit tree, melon, vegetables etc.
Microbicide compositions with synergistic effect takes following measures to realize:
Contain two kinds of active components of the phonetic phenol of second and kresoxim-methyl in the composition, wherein the weight ratio of the phonetic phenol of second and kresoxim-methyl is 0.1～50: 0.1～60, more excellent weight ratio is 1～40: 1～50, and the active ingredient of composition adds auxiliary agent and filler can be processed into missible oil, aqueous emulsion, suspending agent, microcapsule formulations, wetting powder and water dispersible granules.
Specific embodiments of the present invention is as follows:
One of technical scheme of the present invention, described Pesticidal combination are cream preparation, and the percentage by weight of component is:
The phonetic phenol 0.1～50% of second
Kresoxim-methyl 0.1～60%
Conventional emulsifier 10～30%
Conventional solvent 20～50%
Conventional synergist 1～5%
The concrete production stage of this cream preparation adds the stir oily liquids of rear one-tenth transparent and homogeneous of emulsifier, synergist after the fully dissolving again for first the phonetic phenol of second, kresoxim-methyl being added in the solvent, can namely makes the cream preparation that contains the bactericidal composition of the phonetic phenol of second and kresoxim-methyl of the present invention.
Two of technical scheme of the present invention, described bactericidal composition are aqueous emulsion, and the percentage by weight of component is:
The phonetic phenol 0.1～50% of second
Kresoxim-methyl 0.1～60%
Emulsifier 3～30%
Solvent 5～15%
Stabilizing agent 2～15%
Antifreezing agent 1～5%
Defoamer 0.1～8%
Thickener 0.2～2%
Water surplus
The concrete production stage of this aqueous emulsion is: at first the phonetic phenol of former medicine second and kresoxim-methyl, solvent and emulsifier, cosolvent are added together, make and be dissolved into uniform oil phase; With part water, antifreeze, other the insecticides adjuvant such as antimicrobial mixes into uniform water; When the reactor high speed stirs, oil phase is added water, slowly add water until reach the phase inversion point, open clipper and carry out high speed shear, and add remaining water, shear approximately half an hour, form the aqueous emulsion of oil-in-water type.Namely make the aqueous emulsion of the bactericidal composition that contains the phonetic phenol of second and kresoxim-methyl.
Three of technical scheme of the present invention, described bactericidal composition are suspending agent, and the percentage by weight of component is:
The phonetic phenol 0.1～50% of second
Kresoxim-methyl 0.1～60%
Dispersant 5～20%
Antifreezing agent 1～5%
Thickener 0.1～2%
Defoamer 0.1～0.8%
Water surplus
The concrete production stage of this suspending agent is for mixing other auxiliary agents first, mix through high speed shear, add the phonetic phenol of second and kresoxim-methyl, abrading-ball is 2～3 hours in ball crusher, make a diameter all below 5mm, make the suspending agent preparation that contains the bactericidal composition of the phonetic phenol of second and kresoxim-methyl of the present invention.
Four of technical scheme of the present invention, described bactericidal composition are microcapsule formulations, and the percentage by weight of component is:
The phonetic phenol 0.1～50% of second
Kresoxim-methyl 0.1～60%
Urea 5～20%
Formaldehyde 5～20%
Emulsifying dispersant 5～20%
Antifreezing agent 1～5%
Thickener 0.1～2%
Defoamer 0.1～0.8%
Water surplus
In being housed, the there-necked flask of agitating device adds urea and formaldehyde (molar ratio be about 1: 1.5～2.0), with the pH value to 8 of sodium hydroxide solution regulator solution～about 9, then be warming up to 70～80 ℃, reaction obtains stable urea resin prepolymer.The former medicine of getting the phonetic phenol of a certain amount of second and kresoxim-methyl is dissolved in the cyclohexane, and adds emulsifying dispersant in solution, follows vigorous stirring, and the aqueous solution that is made into to contain emulsifying dispersant is the O/W type stable emulsion of water.Above-mentioned urea resin prepolymer is added in the emulsion, regulate the pH value, polymerization reaction take place under the acid catalysis condition is wrapped oil phase substance, forms microcapsule granule.Slowly heat up, solidify, temperature is controlled at 40～50 ℃, hardening time 1h.Select to add an amount of auxiliary agent, the microcapsule suspending agent that gets final product stablely.
Five of technical scheme of the present invention, described bactericidal composition are wetting powder, and the percentage by weight of component is:
The phonetic phenol 0.1～50% of second
Kresoxim-methyl 0.1～60%
Dispersant 3～20%
Wetting agent 3～10%
Filler 10～70%
The concrete procedure of processing of this bactericidal composition wetting powder is: press above-mentioned prescription with the phonetic phenol of second and kresoxim-methyl and dispersant, wetting agent and filler mixing, uniform stirring in stirred tank, behind airslide disintegrating mill, mixing, namely can be made into the wetting powder of the present composition.
Six of technical scheme of the present invention, described bactericidal composition are water dispersible granules, and the percentage by weight of component is:
The phonetic phenol 0.1～50% of second
Kresoxim-methyl 0.1～60%
Dispersant 3～20%
Wetting agent 3～10%
Disintegrant 2～5%
Filler 10～70%
The concrete procedure of processing of this bactericidal composition water dispersible granules is: by above-mentioned prescription the phonetic phenol of second, kresoxim-methyl and dispersant, wetting agent, disintegrant and filler are mixed, pulverize with micro jet, through mediating, then add and carry out granulation, drying, screening in the fluidized bed prilling dryer by sample analysis, make the water dispersible granules that contains the bactericidal composition of the phonetic phenol of second and kresoxim-methyl of the present invention.
Described conventional emulsifier is selected from any one or more mixtures that form with arbitrary proportion in calcium dodecyl benzene sulfonate and aliphatic acid polyethenoxy ether, alkylphenol polyoxyethylene sulfosuccinate, styrylphenol polyoxyethylene ether, polyoxyethylene nonylphenol ether, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy base ester, the polyoxyethylene aliphatic alcohol ether.
Described conventional solvent is any one or more mixed solvents that form with arbitrary proportion in dimethylbenzene or biodiesel, toluene, diesel oil, methyl alcohol, ethanol, n-butanol, isopropyl alcohol, turpentine oil, solvent naphtha, dimethyl formamide, dimethyl sulfoxide (DMSO), the water equal solvent.
Described conventional synergist refers to have enhancing medicament penetration, wetting extended capability, knock down insect speed, improve the resistance of rainwater washing against power of agricultural chemicals, thereby improve a class safety, environmental protection of agricultural insecticide, bactericidal effect, the New-type adjuvant of nontoxic, noresidue, optional in organic silicon pesticide synergist ZC-650 or organic silicon pesticide bleeding agent spreading agent Agrowet810c, agricultural organic silicon pesticide synergist Silwet408, azone any.
Described dispersant is selected from one or more in polycarboxylate, lignosulfonates, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, alkyl benzene sulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, polyoxyethylene carboxylate, the fatty acid glyceride APEO.
Described wetting agent is selected from: lauryl sodium sulfate, calcium dodecyl benzene sulfonate, Nekal BX., among the wetting and penetrating agent F, alkylnaphthalene sulfonate, polyoxyethylene triphenylethylene phosphenylic acid salt, spaonin powder, silkworm excrement, soapberry powder one or more.
Described disintegrant is selected from: one or more in bentonite, urea, ammonium sulfate, aluminium chloride, citric acid, succinic acid, the sodium bicarbonate.
Described thickener is selected from: one or more in xanthans, CMC, hydroxyethylcellulose, methylcellulose, Magnesiumaluminumsilicate, the polyvinyl alcohol.
Described stabilizing agent is selected from: a kind of in sodium citrate, the resorcinol.
Described antifreeze is selected from: one or more in ethylene glycol, propane diols, the glycerine.
Described defoamer is selected from: silicone oil, silicone compound, C
10-20Saturated fat acid compounds, C
8-10In the aliphatic alcohols compound one or more.
Described emulsifying dispersant comprises: wetting agent, dispersant, stabilizing agent, thickener, defoamer and antifreezing agent etc.
Described filler is selected from: one or more in kaolin, diatomite, bentonite, attapulgite, white carbon, starch, the precipitated calcium carbonate.
The invention has the beneficial effects as follows:
1, two kinds of compound effects mechanism involved in the present invention are different, and mutually being mixed can not produce conflict, but Synergistic reduces dosage, reduces cost.And the phonetic phenol of second and kresoxim-methyl composite not yet has report.
2, the pathogen that produces resistance is still had very high drug effect, can delay drug-fast generation.
3, reduce the agricultural chemicals usage amount, strengthened the friendly to environment.
Specific embodiment
The different proportioning co-toxicities from the phonetic phenol of second of kresoxim-methyl
1 materials and methods
The design 1.1 material and medicament are mixed
Test medicine is 90% kresoxim-methyl dry suspending agent, Basf China Co., Ltd's product, the phonetic phenol SC of 95% second (Zhejiang standing grain benefit farmingization Co., Ltd provides).Supplying the examination pathogen is Cercospora musae bacterium (Cercosporamusae).Examination is made as 30% kresoxim-methyl according to kresoxim-methyl and the phonetic phenol of second total active constituent content that is mixed: the phonetic phenol of second was established 1: 1,1: 2,1: 2.75,1: 3.29,1: 4 by former medicine mass ratio, and namely 5 ratios such as 15%+15%, 10%+20%, 8%+22%, 7%+23%, 6%+24% are mixed.
1.2 experimental scheme
Take by weighing respectively the combination that is mixed of the phonetic phenol of an amount of second, the former medicine of kresoxim-methyl, 5 phonetic phenol of kresoxim-methyl second, fully vibration makes its dissolving in the sterilization triangular flask that adds in advance 3mL watery hydrochloric acid, and adding an amount of sterile water, to make 500 each 50mL of μ g/mL mother liquor for subsequent use.On the basis of preliminary experiment, respectively be mixed combination and kresoxim-methyl, the phonetic phenol of second of the phonetic phenol of kresoxim-methyl second respectively to be established 5 concentration gradients such as 2.5,5,10,20 and 40 μ g/g, and make blank with the watery hydrochloric acid of same concentrations, each is processed and repeats 3 times.
1.3 Tests of Synergistic Actions
The employing growth rate method is measured, and every processing repeats 3 times, calculates relative inhibition, virulence regression equation, EC50 that each is processed, obtains the coefficient of synergism (SR) that each is processed with the Wadley method, carries out synegism evaluation.Data see Table 1.
The phonetic phenol mixture of the kresoxim-methyl second of the different proportionings of table 1 suppresses virulence and synergistic effect to the Cercospora musae bacterium
2 results and analysis
Each mixture synergism coefficient that the phonetic phenol of kresoxim-methyl and second is mixed is all greater than 1, but kresoxim-methyl: 1: 2 combination S R value that is mixed of the phonetic phenol of second is up to 1.95, greater than 1.5, shows as synergistic function, remaining 4 be mixed combination S R value all less than 1.5 greater than 1, show as summation action.
3 field trials are surveyed alternaria leaf spot of apple and sigatoka
3.1 test method
3.1.1 application method
Altogether dispenser twice of test, contrast orchard spray equivalent clear water.When making up a prescription, after with a small amount of water medicament fully being dissolved first, add again suitable quantity of water and carry out complete stool spraying processing, tree crown even spraying.All adopting power driven sprayer, operating pressure during the spray medicine is 2.0～2.3kg/cm
2, shower nozzle aperture 1.2mm.The about 3.0kg of every strain tree spraying volume, not lower of liquid is as spending on the moistening blade of liquid and the branch.
3.1.2 investigation method
Alternaria leaf spot of apple: fixing investigation three strains of every residential quarter, every strain from East, West, South, North, five directions fix 3 branches, its whole blades of periodic investigation, record total number of sheets, the sick number of sheets at different levels, calculate the blade incidence of disease, disease index, refer to comparison with the contrast disease, calculate relative control effect.
Severity Scaling standard (take blade as unit)
0 grade: without scab;
1 grade: the sick area of scab accounts for whole leaf area below 10%;
3 grades: the sick area of scab accounts for whole leaf area 11%～25%;
5 grades: the sick area of scab accounts for whole leaf area 26%～40%;
7 grades: the sick area of scab accounts for whole leaf area 41%～65%;
9 grades: the sick area of scab accounts for whole leaf area more than 65%.
Sigatoka is sick: fixing investigation 3 strains of every residential quarter, every strain banana is down investigated 5-13 leaves (not opening lobus cardiacus disregards) from top, and total number of sheets, the sick number of sheets at different levels of record investigation are calculated the blade incidence of disease, disease index, refer to comparison with the contrast disease, calculate relative control effect.
Severity Scaling standard (take blade as unit)
0 grade: without scab;
1 grade: the sick area of scab accounts for whole leaf area below 5%;
3 grades: the sick area of scab accounts for whole leaf area 6%～10%;
5 grades: the sick area of scab accounts for whole leaf area 11%～25%;
7 grades: the sick area of scab accounts for whole leaf area 26%～50%;
9 grades: the sick area of scab accounts for whole leaf area more than 50%.
3.1.3 control time and number of times
Test is investigated 4 times altogether, radix investigation before the medicine, behind the medicine 5 days for the first time, behind the medicine 5 days and carried out for the second time the 4th investigation behind the medicine in 18 days for the second time.
3.1.4 drug effect computational methods
Sick leaf rate (the %)=sick number of sheets/investigate total number of sheets * 100
Disease index=∑ (the sick numbers of sheets at different levels * relative level numerical value)/(investigating total number of sheets * 9) * 100
Control efficiency (%)=(1-(disease index behind disease index before the blank district medicine * treatment region medicine)/(disease index before disease index behind the blank district medicine * treatment region medicine)) * 100
3.1.5 poisoning investigation method
Whether continuous 7d range estimation medicament has poisoning to crop after the dispenser.
3.2 result of the test and analysis
3.2.1 each processes the effect (seeing Table 2) of control alternaria leaf spot of apple
Each processes the effect of control alternaria leaf spot of apple table 2
As can be seen from Table 2,30% kresoxim-methyl: the phonetic phenol of second is better than 50% kresoxim-methyl single dose with the effect of 1: 1 the combination control alternaria leaf spot of apple that is mixed, and also is better than the phonetic phenol single dose of 25% second; And it has good quick-acting and lasting effect, and 18 days the highest preventive effect can reach 85.07% behind its 2 medicines, is higher than the preventive effect of 50% kresoxim-methyl single dose and the phonetic phenol single dose of 25% second far away.According to the field range estimation, in the test dose scope, plant growth is normal, and the poisoning phenomenon to apple does not all appear in each treatment agent, illustrates that it is safe to apple.
3.2.1 each processes the effect (seeing Table 3) of preventing and treating sigatoka
Each processes the effect of preventing and treating sigatoka table 3
As can be seen from Table 3,30% kresoxim-methyl: the phonetic phenol of second also has good control efficiency with 1: 1 the combination that is mixed to sigatoka, and its effect is better than 50% kresoxim-methyl single dose and the phonetic phenol single dose of 25% second; Have good quick-acting and lasting effect, 18 days preventive effect is higher than the preventive effect 63.77% of 50% kresoxim-methyl single dose and the preventive effect 56.72% of the phonetic phenol single dose of 25% second at 71.92%-80.73% behind its 2 medicines, can well control the generation of sigatoka.According to the field range estimation, in the test dose scope, plant growth is normal, and the poisoning phenomenon to banana does not all appear in each treatment agent, illustrates that it is safe to banana.
In sum, the present invention contains the bactericidal composition of kresoxim-methyl and the phonetic phenol of second, alternaria leaf spot of apple, sigatoka and powdery mildew etc. there are better prevention and result for the treatment of, and it is compared with single dose the target crop safety, and bactericidal composition of the present invention has the advantage that quick-acting is good, the lasting period long, do not pollute the fruit face, dosage is low, environmental pollution is few, is difficult for producing poisoning
So research and development of the present invention and popularization are of great significance social tool.
Claims (4)
1. a bactericidal composition is characterized in that containing the phonetic phenol of second and kresoxim-methyl, and wherein the weight ratio of the phonetic phenol of second and kresoxim-methyl is 2: 1, and the phonetic phenol of second and the gross weight of kresoxim-methyl in preparation account for 2～70% of the whole quality of the pharmaceutical preparations.
2. bactericidal composition according to claim 1, the phonetic phenol of second and kresoxim-methyl and auxiliary agent and cosolvent are re-dubbed any one formulation that allows on the agricultural chemicals.
3. bactericidal composition according to claim 2 is characterized in that formulation is missible oil, suspending agent, aqueous emulsion, microemulsion, microcapsule formulations, wetting powder and water dispersible granules.
Bactericidal composition according to claim 1 at control Cereal and melon, really, the application on the vegetables aspect the disease.
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| CN106982827A (en) * | 2017-04-12 | 2017-07-28 | 江苏金凤凰农化有限公司 | A kind of composition and application process that tobacco leaf spot is treated based on guaiacol |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087529A (en) * | 2004-12-23 | 2007-12-12 | 巴斯福股份公司 | Fungicidal mixtures |
| CN101160052A (en) * | 2005-03-31 | 2008-04-09 | 三井化学株式会社 | Pesticidal composition |
| WO2008092818A2 (en) * | 2007-02-01 | 2008-08-07 | Basf Se | Pesticidal mixtures |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101087529A (en) * | 2004-12-23 | 2007-12-12 | 巴斯福股份公司 | Fungicidal mixtures |
| CN101160052A (en) * | 2005-03-31 | 2008-04-09 | 三井化学株式会社 | Pesticidal composition |
| WO2008092818A2 (en) * | 2007-02-01 | 2008-08-07 | Basf Se | Pesticidal mixtures |
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