CN101779636B - Bactericidal composite containing tetraconazole - Google Patents
Bactericidal composite containing tetraconazole Download PDFInfo
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- CN101779636B CN101779636B CN 200910225147 CN200910225147A CN101779636B CN 101779636 B CN101779636 B CN 101779636B CN 200910225147 CN200910225147 CN 200910225147 CN 200910225147 A CN200910225147 A CN 200910225147A CN 101779636 B CN101779636 B CN 101779636B
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- enestroburin
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Abstract
The invention discloses a bactericidal composite, which contains active ingredients of tetraconazole and enestroburin, wherein, the weight ratio of tetraconazole to enestroburin is 70-1:1-70, the total weight percentage of the active ingredients is 1-80%, and the balance is acceptable auxiliary elements allowed to use in pesticides. The bactericidal composite can be used for preventing and treating multiple diseases of cereal crop, melon and fruit and vegetable plants caused by oomycetes, ascomycetes, basidiomycetes, imperfect fungi and the like, and has important functions of synergism, drug resistance delay, lowered cost, prevention spectrum expansion and the like.
Description
Technical field
The present invention relates to a kind of bactericidal composition, especially a kind of binary built bactericidal composition that contains tetraconazole.
Background technology
Tetraconazole (tetraconazole) has another name called fluorine ether azoles, is triazole bactericidal agent, is sterol demethylation inhibitor, has interior suction conduction, and good protection and therapeutic activity are arranged.This medicament all has application on cereal crop, fruit tree, vegetables and ornamental plants, can prevent and treat wheat powdery mildew, loose smut of wheat, wheat rust, the bunt of wheat, wheat glume blight, barley leaf blotch, loose smut of barley, barley banded sclerotial blight, maize head smut, head smut of sorghum, melon and fruit powdery mildew, sigatoka, alternaria leaf spot of apple, pear scab and grape powdery mildew etc.
In the real process of control of plant disease, common problem is that the chronic administration single dose causes the drug-fast generation of germ.Composite by tetraconazole and other active ingredient are carried out, be the effective way of avoiding the resistance germ to produce.Composite between the different active ingredients, according to the effect of practical application, judge that composite is synergy or antagonism.The prescription that compound synergic is good can significantly improve actual control efficiency, reduces the usage amount of agricultural chemicals, thereby delays the generation speed of germ resistance.
In view of this, develop the synergistic composition that contains tetraconazole and have important actual application value.
Summary of the invention
The purpose of this invention is to provide the bactericidal composition of a kind of efficient, safety, environmental protection to satisfy the needs of agricultural production, the active component that comprises in the composition has mutually synergistic effect, can improve preventive effect and is of value to and delays the drug-fast generation of germ.
Technical scheme of the present invention is as follows:
A kind of bactericidal composition, it is characterized in that take tetraconazole and Enestroburin as active component, the weight ratio of tetraconazole and Enestroburin is 70: 1～1: 70, two kinds of active component gross weight percentage compositions are 1～80% in the composition, and all the other are to allow in the agricultural chemicals to use and the acceptable auxiliary element.
Described Enestroburin is a kind of strobilurin fungicide, but the mitochondrial breathing of its Antifungi, the Q0 position by cytochrome b c1 complex in conjunction with suppressing mitochondrial current potential transmission, the germ energy is synthetic to play bactericidal action thereby destroy.It has protection, treat, root out, infiltration, interior suction multi-efficiency.
As a kind of improvement of the present invention, in the composition active component tetraconazole and Enestroburin preferably weight ratio be 20: 1～1: 20, two kinds of active component gross weight percentage compositions are 1～50% in the composition.
Composition pesticide of the present invention can be prepared into known method any one formulation that is fit to agricultural use, and reasonable formulation is wetting powder, suspending agent, water dispersible granules, aqueous emulsion and microemulsion.
The auxiliary agent that uses in the composition of the present invention comprises that solvent, dispersant, emulsifier, stabilizing agent, antifreezing agent, thickener etc. and other are of value to the known substance that active ingredient is stablized and drug effect is brought into play in preparation, all be various compositions commonly used in the pesticidal preparations or that permission is used, be not particularly limited, concrete composition and consumption require to determine by simple experiment according to prescription.
Bactericidal composition of the present invention can be prevented and treated the multiple diseases that the crops such as Cereal, various melon and fruit, vegetables are caused by disease funguses such as oomycetes, sac fungi, basidiomycetes, imperfect funguss, particularly prevent and treat the crop pests such as paddy rice, wheat, capsicum, apple, banana, mango, cucumber, tomato, such as wheat powdery mildew, apple rust, cladosporium leaf and fruit mould of tomato, mango anthracnose, powdery mildew of cucumber, banana freckle, citrus scab, leaf spot of peanut etc.
Compared with prior art, beneficial effect of the present invention is:
1, synergistic effect is remarkable.Mixed composition is owing to the action site that has increased the target fungi, and bactericidal effect is compared single dose and obviously improved.
2, after drug effect improved, the amount of application of active ingredient and medication number of times reduced, and have reduced drug cost, have reduced the pollution to environment.
3, be conducive to resistance management.The mechanism of action of two active ingredients is fully different in the composition, has reduced the single selection pressure to germ, without mutual pesticide resistance, therefore can avoid and delay the drug-fast generation of germ.
4, enlarge fungicidal spectrum.Because the fungicidal spectrum of two kinds of active ingredients is variant, so mixing when sending out in multiple diseases, composition can play the double effect of controlling of a medicine.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, the present invention describes with following specific embodiment, but the present invention is limited to absolutely not these examples.The following stated only is preferably embodiment of the present invention, only in order to explain the present invention, can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that all any modifications of making within the spirit and principles in the present invention, be equal to replacement and improvement etc., all should be included within protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
The example of formulations of bactericidal composition of the present invention:
1, wetting powder embodiment
Pesticide activity component tetraconazole and Enestroburin, auxiliary agent, filler mixed behind air-flow crushing to mix in proportion again make wetting powder.Capital equipment: mixer, airslide disintegrating mill.
Embodiment 1:80% tetraconazole Enestroburin wetting powder
94% tetraconazole (active component) 31.91g
90% Enestroburin (active component) 55.56g
Sodium lignin sulfonate (dispersant) 5g
Lauryl sodium sulfate (wetting agent) 5g
Diatomite 2.53g
Embodiment 2:35.5% tetraconazole Enestroburin wetting powder
94% tetraconazole (active component) 37.23g
90% Enestroburin (active component) 0.56g
Sodium lignin sulfonate (dispersant) 5g
The withered powder of tea (dispersant) 5g
Pull open powder (wetting agent) 1g
White carbon (filler) 1g
Attapulgite (filler) 50.21g
2, suspending agent embodiment
Press formula rate, with pesticide activity component tetraconazole with after Enestroburin, surfactant, thickener, film forming agent, carrier or filler and part water mix, through high speed shear, the wet method sand milling, make semi-finished product, moisturizing mixes filtration and namely obtains finished product after analyzing.
Embodiment 3:35.5% tetraconazole Enestroburin suspending agent
94% tetraconazole (active component) 0.53g
90% Enestroburin (active component) 38.89g
Methyl naphthalene sulfonate formaldehyde condensate (wetting agent) 10g
Xanthans (thickener) 2g
Bentonite (filler) 1g
Glycerine (antifreeze) 5g
Water 42.58g
Embodiment 4:11% tetraconazole Enestroburin suspending agent
94% tetraconazole (active constituent) 10.64g
90% Enestroburin (active component) 1.11g
Sodium lignin sulfonate (dispersant) 1g
Magnesiumaluminumsilicate (thickener) 1g
Ethylene glycol (antifreezing agent) 5g
White carbon (filler) 2g
Bentonite (filler) 2g
Water 77.25g
3, water-dispersible granules embodiment
Pesticide activity component tetraconazole is mixed in proportion with Enestroburin, auxiliary agent and filler, through air-flow crushing, then add the water of 15-20%, make the water dispersible granules product through kneading, granulation, drying, screening.Capital equipment: mixer, airslide disintegrating mill, kneader, Squeezinggranulator, drying equipment (drying room or fluid bed).
Embodiment 5:50% tetraconazole Enestroburin water dispersible granules
94% tetraconazole (active component) 10.64g
90% Enestroburin (active component) 44.44g
Sodium lignin sulfonate (dispersant) 5g
The withered powder of tea (dispersant) 2g
Lauryl sodium sulfate (wetting agent) 2g
Bentonite 35.92g
Embodiment 6:10.5% tetraconazole Enestroburin water dispersible granules
94% tetraconazole (active component) 0.53g
90% Enestroburin (active component) 11.11g
Sodium lignin sulfonate (dispersant) 5g
Methyl naphthalene sulfonate formaldehyde condensate (dispersant) 15g
Lauryl sodium sulfate (dispersant) 5g
Sodium alginate (filler) 5g
Potter's clay 63.36g
4, microemulsion, aqueous emulsion embodiment
By each component proportion, in solvent and cosolvent, the adding surfactant mixes and makes oil phase with tetraconazole and Enestroburin solubilization of active ingredient.Water-soluble component and water mixing are made water, oil phase is added aqueous phase or water again and add in the oil phase, the limit edged stirs, and makes microemulsion or aqueous emulsion.
Embodiment 7:21% tetraconazole Enestroburin aqueous emulsion
94% tetraconazole (active component) 21.28g
90% Enestroburin (active component) 1.11g
DMF (solvent) 5g
Cyclohexanol (solvent) 10g
Glycerine (antifreezing agent) 5g
Phenethyl phenol polyethenoxy ether (emulsifier) 10g
Calcium dodecyl benzene sulfonate (wetting agent) 5g
Water 42.61g
Embodiment 8:1% tetraconazole Enestroburin microemulsion
94% tetraconazole (active component) 0.53g
90% Enestroburin (active component) 0.56g
DMF (solvent) 10g
Dimethylbenzene (solvent) 10g
Propane diols (cosolvent) 5g
Castor oil polyoxyethylene ether (emulsifier) 10g
Calcium dodecyl benzene sulfonate (wetting agent) 5g
Water 58.91g
The indoor biometrics Application Example:
1, tetraconazole and Enestroburin are composite to the powdery mildew of cucumber Toxicity Determination
Subjects: the powdery mildew of cucumber bacterium (Sphaerotheca fuligenea) of picking up from the field
Test method: with reference to " the agricultural industry criteria NY/T 1156.11-2008 of the People's Republic of China (PRC) " pot-culture method.Choose 2 basically identical potted plant cucumber seedlings of leaf period of growing way as experiment material, 5 basins are selected in each processing, and numbering is for examination.Get the sick leaf of the powdery mildew of cucumber of picking up from the field, evenly shake off conidium and inoculate above cucumber seedling, carry out chemicals treatment behind the inoculation 24h, test medicine is referring to table 1.Under 50PSI pressure, spray every basin 5mL with the Potter spray tower.To spray the blank that is treated to of equivalent clear water.After the spraying cucumber seedling being put into the greenhouse cultivates.Investigate whole blades and record statistics, calculate disease index and control efficiency according to the morbidity grade scale of powdery mildew of cucumber behind the 7d.
Control efficiency is converted into probability value (y), and liquor strength (mg/L) converts logarithm value (x) to, calculates concentration EC in virulence equation and the inhibition with method of least squares
50, according to toxicity index and the co-toxicity coefficient (CTC) of the abundant method calculating of Sun Yun medicament.
Actual measurement toxicity index (ATI)=(standard medicament EC
50/ reagent agent EC
50) * 100
The percentage composition of B in the percentage composition of A+B medicament toxicity index * mixture in theoretical toxicity index (TTI)=A medicament toxicity index * mixture
Co-toxicity coefficient (CTC)=[mixture actual measurement toxicity index (the ATI)/theoretical toxicity index (TTI) of mixture] * 100
CTC≤80, the composition performance is antagonism, 80＜CTC＜120, the composition performance is summation action, CTC 〉=120, the composition performance is synergistic effect.
Table 1 measurement result shows that tetraconazole and Enestroburin have synergistic effect to the powdery mildew of cucumber bacterium between proportioning 70: 1～1: 70, and especially between 20: 1～1: 20, synergistic effect is more obvious, and co-toxicity coefficient is more than 200.
The composite Toxicity Determination result to the powdery mildew of cucumber bacterium of table 1 tetraconazole and Enestroburin
| Process | EC 50(mg/L) | ATI | TTI | Co-toxicity coefficient CTC |
| Tetraconazole | 8.56 | 100.0 | - | - |
| Enestroburin | 9.38 | 91.26 | - | - |
| Tetraconazole 1: Enestroburin 70 | 6.89 | 124.24 | 91.38 | 135.96 |
| Tetraconazole 1: Enestroburin 40 | 6.04 | 141.72 | 91.47 | 154.94 |
| Tetraconazole 1: Enestroburin 20 | 4.51 | 189.80 | 91.67 | 207.04 |
| Tetraconazole 1: Enestroburin 5 | 3.57 | 239.78 | 92.71 | 258.62 |
| Tetraconazole 1: Enestroburin 1 | 3.98 | 215.08 | 95.63 | 224.91 |
| Tetraconazole 5: Enestroburin 1 | 3.96 | 216.16 | 98.54 | 219.36 |
| Tetraconazole 20: Enestroburin 1 | 4.15 | 206.27 | 99.58 | 207.13 |
| Tetraconazole 40: Enestroburin 1 | 5.87 | 145.83 | 99.79 | 146.14 |
| Tetraconazole 70: Enestroburin 1 | 6.33 | 135.23 | 99.88 | 135.40 |
2, tetraconazole and Enestroburin are composite to the mango anthracnose Toxicity Determination.
Subjects: Colletotrichum gloeosporioides Penz in Mango (Colletotrichum gloeosporioides), pick up from the field and through three purifies and separates.
Test method: with reference to " the agricultural industry criteria NY/T 1156.2-2006 of the People's Republic of China (PRC) " mycelial growth rate method.With Colletotrichum gloeosporioides Penz in Mango PDA medium culture, when treating that bacterium colony has just covered with culture dish, be that the card punch of 7mm punches from the edge with internal diameter, the mycelia piece that breaks into is as inoculum.Take respectively liquid 5mL that aqua sterilisa prepares and quantitative 75mL sterilising medium and mix, make 4 pastille flat boards, be mixed into contrast with equivalent sterile water and medium.The inversion of mycelia piece is connected to dull and stereotyped central authorities, and in 28 ℃ of incubators, cultivates.Behind the 7d, measure colony diameter with the right-angled intersection method, calculate and respectively process bacterium colony net growth, mycelial growth inhibition rate.
Bacterium colony net growth (mm)=measurement colony diameter-7
Mycelial growth inhibition rate (%)=[(control group bacterium colony net growth-processed group bacterium colony net growth)/control group bacterium colony net growth] * 100
Mycelial growth inhibition rate is converted into probability value (y), and liquor strength (mg/L) converts logarithm value (x) to, calculates concentration EC in virulence equation and the inhibition with method of least squares
50, according to toxicity index and the co-toxicity coefficient (CTC) of the abundant method calculating of Sun Yun medicament.
Table 2 measurement result shows that tetraconazole and Enestroburin have obvious synergistic effect to Colletotrichum gloeosporioides Penz in Mango between proportioning 1: 70～70: 1, and especially between 1: 20～20: 1, synergistic effect is more obvious, and co-toxicity coefficient is more than 200.
The composite Toxicity Determination result to Colletotrichum gloeosporioides Penz in Mango of table 2 tetraconazole and Enestroburin
| Process | EC 50(mg/L) | ATI | TTI | Co-toxicity coefficient CTC |
| Tetraconazole | 8.07 | 100.0 | - | - |
| Enestroburin | 9.18 | 18.84 | - | - |
| Tetraconazole 1: Enestroburin 70 | 6.75 | 119.56 | 88.08 | 135.74 |
| Tetraconazole 1: Enestroburin 40 | 6.27 | 128.71 | 88.20 | 145.92 |
| Tetraconazole 1: Enestroburin 20 | 4.47 | 180.54 | 88.48 | 204.03 |
| Tetraconazole 1: Enestroburin 5 | 3.41 | 236.66 | 89.92 | 263.18 |
| Tetraconazole 1: Enestroburin 1 | 3.71 | 217.52 | 93.95 | 231.52 |
| Tetraconazole 5: Enestroburin 1 | 3.85 | 209.61 | 97.98 | 213.92 |
| Tetraconazole 20: Enestroburin 1 | 4.03 | 200.25 | 99.42 | 201.41 |
| Tetraconazole 40: Enestroburin 1 | 5.24 | 154.01 | 99.71 | 154.46 |
| Tetraconazole 70: Enestroburin 1 | 6.28 | 128.50 | 99.83 | 128.72 |
The field efficacy Application Example:
Tetraconazole and Enestroburin are composite to preventing and treating the field trial of powdery mildew of cucumber.
(1) test is processed: this test medicine is processed and consumption sees Table 3, and the contrast medicament is respectively commercially available agricultural chemicals 4% tetraconazole aqueous emulsion and 25% Enestroburin missible oil, and other establishes the clear water contrast.
(2) test method: test is chosen in the more serious green cucumber plot of powdery mildew over the years to be carried out, and each condition such as cucumber growing way, other agricultural chemicals and rich water quality management of processing is basically identical.Carry out the dispenser first time in the powdery mildew of cucumber initial stage of origination, sprayed once every 7 days later on, spray altogether 3 times.10 days investigation powdery mildew incidences before medicine and after the 3rd dispenser, repeat four residential quarters of every processing, and 2 strains are investigated in every residential quarter, and whole blades are investigated in every strain.Calculate disease index and preventive effect.
(3) result of the test is as follows:
Can be found out by field control effectiveness test result (table 3): tetraconazole or Enestroburin single dose are respectively 81.10% to the preventive effect of powdery mildew of cucumber, 78.15%, and embodiment of the invention bactericidal composition is significantly increased in preventive effect, minimum preventive effect is 86.04%, be up to 96.28%, particularly tetraconazole and Enestroburin weight ratio are that (embodiment 1 in 20: 1～1: 20,4,5,6,7,8) time, preventive effect promotes particularly evident, the powdery mildew of cucumber preventive effect has been reached more than 93%, therefore, from field control effectiveness test, tetraconazole and Enestroburin are composite good to the powdery mildew of cucumber control efficiency, have synergistic function.
The composite field test results to powdery mildew of cucumber of table 3 tetraconazole and Enestroburin
| Reagent agent | Dosage (ga.i./ha) | Disease index before the medicine | 10 days disease indexs behind the 3rd medicine | Preventive effect (%) |
| 4% tetraconazole EW | 50 | 1.2 | 6.7 | 81.10 |
| 25% Enestroburin EC | 120 | 1.1 | 7.1 | 78.15 |
| Embodiment 1 | 40 | 1.3 | 2.3 | 94.01 |
| Embodiment 2 | 45 | 0.8 | 3.3 | 86.04 |
| Embodiment 3 | 100 | 0.9 | 3.6 | 86.46 |
| Embodiment 4 | 37 | 1.3 | 2.2 | 94.27 |
| Embodiment 5 | 60 | 1.0 | 1.1 | 96.28 |
| Embodiment 6 | 85 | 1.3 | 2.3 | 94.01 |
| Embodiment 7 | 35 | 1.1 | 2.1 | 93.54 |
| Embodiment 8 | 39 | 1.2 | 1.7 | 95.21 |
| CK | - | 1.1 | 32.5 | - |
Claims (6)
1. bactericidal composition, it is characterized in that: active component is tetraconazole and Enestroburin, the weight ratio of tetraconazole and Enestroburin is 70: 1～1: 70.
2. bactericidal composition according to claim 1, it is characterized in that: the weight ratio of active component tetraconazole and Enestroburin is 20: 1～1: 20.
According to claim 1 with 2 each described bactericidal compositions, it is characterized in that: two kinds of active component gross weight percentage compositions are 1～80% in the composition.
According to claim 1 with 2 each described bactericidal compositions, it is characterized in that: two kinds of active component gross weight percentage compositions are 1～50% in the composition.
According to claim 1 with 2 each described bactericidal compositions, it is characterized in that: the formulation of composition is wetting powder, suspending agent, water dispersible granules, aqueous emulsion and microemulsion.
6. the purposes that is applied to prevent and treat Cereal, fruit tree and vegetable disease with 2 each described bactericidal compositions according to claim 1.
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| CN105076155B (en) * | 2014-05-08 | 2017-04-26 | 江苏龙灯化学有限公司 | Plant disease preventing and treating composition |
| CN105265446B (en) * | 2014-07-18 | 2018-02-13 | 中化农化有限公司 | A kind of composition pesticide containing alkene oxime amine and tetraconazole |
| CN106259374A (en) * | 2016-08-20 | 2017-01-04 | 田文华 | A kind of containing fluoxastrobin with the bactericidal composition of tetraconazole |
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| CN101237777A (en) * | 2005-06-09 | 2008-08-06 | 拜尔农作物科学股份公司 | Active substance combinations |
| JP2009057320A (en) * | 2007-08-31 | 2009-03-19 | Nissan Chem Ind Ltd | Pest controlling composition |
| CN101406194A (en) * | 2008-11-28 | 2009-04-15 | 陕西韦尔奇作物保护有限公司 | Bactericidal composition containing thiabendazole |
| CN101416632A (en) * | 2008-11-28 | 2009-04-29 | 陕西韦尔奇作物保护有限公司 | Agricultural bactericidal agent containing thiabendazole |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237777A (en) * | 2005-06-09 | 2008-08-06 | 拜尔农作物科学股份公司 | Active substance combinations |
| JP2009057320A (en) * | 2007-08-31 | 2009-03-19 | Nissan Chem Ind Ltd | Pest controlling composition |
| CN101406194A (en) * | 2008-11-28 | 2009-04-15 | 陕西韦尔奇作物保护有限公司 | Bactericidal composition containing thiabendazole |
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