CN104488878A - Bactericidal composition - Google Patents
Bactericidal composition Download PDFInfo
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- CN104488878A CN104488878A CN201410637190.8A CN201410637190A CN104488878A CN 104488878 A CN104488878 A CN 104488878A CN 201410637190 A CN201410637190 A CN 201410637190A CN 104488878 A CN104488878 A CN 104488878A
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- imazalil
- acid amides
- fluorine azoles
- azoles bacterium
- bacterium acid
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Abstract
The invention discloses a bactericidal composition, which has effective components of fluxapyroxad and imazalil, wherein the mass ratio of fluxapyroxad to imazalil is 50:1-1:50. The composition has obvious synergy effect, can be used for preventing and treating diseases of crops such as vegetables, cereals and fruits, especially botrytis cinerea, cucumber gray mold, cucumber powdery mildew, wheat powdery mildew and apple rot.
Description
Technical field
The present invention relates to a kind of bactericidal composition, especially a kind of bactericidal composition containing fluorine azoles bacterium acid amides.
Background technology
The action target site of succinate dehydrogenase inhibitors is the protein complexes II on pathogen mitochondrial respiratory electron transport chain, i.e. succinate dehydrogenase (succinate dehydrogenase, or succinic acid-ubiquinone reductase (succinate ubiquinone reductase SDH), SQR), strong drug action, persistent, obvious effect of increasing production.This series bactericidal agent that success has been developed at present has 15 kinds at least, and the major product released in recent years has biphenyl pyrrole bacterium amine (bixafen), fluorine pyrrole bacterium acid amides (fluopyram), fluorine azoles bacterium aniline (penflufen), dicyclo fluorine azoles bacterium amine (isopyrazam), ring benzene pyrrole bacterium amine (sedaxane), fluorine azoles bacterium acid amides (fluxapyroxad) and pyrrole metsulfovax (penthiopyrad).
Fluorine azoles bacterium acid amides is the same with Boscalid belongs to succinate dehydrogenase inhibitors together, and graw mold of tomato develops immunity to drugs to Boscalid, in the place that some pesticide resistance is serious, and the more difficult effective control graw mold of tomato of Boscalid.Therefore, the resistance risk of fluorine azoles bacterium acid amides needs to draw attention, and selects to occur with composite its resistance that delays of other compound without cross resistance, develop.
Summary of the invention
The object of the invention is to: a kind of that be applicable to agriculturally using, that have outstanding control efficiency to disease, efficient bactericidal composite of comprising fluorine azoles bacterium acid amides is provided.
For solving the problems of the technologies described above, inventor by a large amount of biologicall tests screening, unexpected find fluorine azoles bacterium acid amides and imazalil composite with certain proportion, graw mold of tomato is had significant synergies.
Imazalil is, English common name imazalil, be a kind of in absorption wide-spectrum bactericide, affect cell permeability of the membrane, physiological function and lipid anabolism, the cell membrane of destruction germ, all effective to the fungal disease of much fruit, vegetables and ornamental plants.Imazalil is effective to gray mold, but is used alone field dosage comparatively greatly, and long-term single continuous use, also there is resistance risk.The deficiency that can preferably solve imazalil composite with fluorine azoles bacterium acid amides, can also expanding prevention spectrum.
On the basis of above-mentioned discovery, through carrying out symphyogenetic quantitative analysis to composition, define technical scheme of the present invention, namely be a kind of active ingredient with fluorine azoles bacterium acid amides, be another active ingredient with imazalil, the mass ratio of fluorine azoles bacterium acid amides and imazalil is 50: 1 ~ 1: 50, and good ratio is 10: 1 ~ 1: 10.
The present composition can be prepared into the formulation of applicable agricultural use by known method, in preparation, the total content of active ingredient is 5%-85%.
The adjuvant used in composition of the present invention comprises dispersant, wetting agent, antifreezing agent, bleeding agent etc. and other is of value to the known substance that active ingredient is stablized in storage and use and drug effect plays, all various compositions that are conventional in pesticidal preparations or permission use, be not particularly limited, concrete composition and consumption are determined by simple experiment according to recipe requirements.
Product described in the invention can finished product preparation form provide, and namely in composition, each material mixes, and the composition of composition also can provide with unit dose form, used in combination according to needing.
Bactericidal composition of the present invention is mainly used in the disease of the crop such as veterinary antibiotics, Cereal, especially the control of graw mold of tomato, gray mold of cucumber, grey mould of egg plant, grey mould fruit rot of strawberry, sigatoka, apple canker, powdery mildew of cucumber, rice sheath blight disease, wheat powdery mildew, is preferred for preventing and treating gray mold.
Compared with prior art, the beneficial effect that the present invention produces is: (1), compared with single dose, this bactericidal composition has obvious synergy to disease, improves control efficiency; (2) can significantly reduce field dosage, effectively reduce environmental pollution and residue of pesticide, and reduce production and use cost; (3) compared with single dose, can expanding prevention compose; (4) the active ingredient mechanism of action is different, composite can overcome or the generation of delaying drug resistance, development.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, the following specific embodiment of the present invention is described, but the present invention is limited to absolutely not these examples.
The combination of active principles of different agricultural chemicals is carried out composite, some problems in agricultural chemicals single dose application process can be solved.After the pestsides synthesis of different cultivars, usually show three kinds of type of action: summation action, synergistic effect and antagonism.But be specially which kind of effect, unpredictable, only have and just can be known by lot of experiments.Compound synergic is well filled a prescription, and owing to significantly improving actual control efficiency, reduces the usage amount of agricultural chemicals, gives full play to the advantage of each component of agricultural chemicals, is the important means of integrated control.
The present composition for active ingredient with fluorine azoles bacterium acid amides and imazalil, combines between them and has obvious synergistic function to disease, and be not only the simple addition of two kinds of pharmacy effects, be specifically illustrated with following biologicall test example.
Biologicall test example 1: fluorine azoles bacterium acid amides and the composite toxicity test to graw mold of tomato of imazalil.
Subjects: graw mold of tomato germ (pick up from field, and through separation and purification)
Test method: test is with reference to " farm-chemical indoor determination test rule NY/T1156.2-2006 and 1156.6-2006 ", and test adopts growth rate method (Plating).The liquid diluted is added in quantitative culture medium and makes band medicine PDA medium, inoculation diameter is 4mm bacterium cake, and to add the medium of aqua sterilisa for blank, 4 repetitions are established in each process, are put in 25 DEG C of constant incubators and cultivate.Until contrast colony diameter surveys each process colony diameter by right-angled intersection method when reaching about 7CM, and record its data and carry out interpretation of result, carry out statistical analysis with DPS data processing software, calculate the EC of each medicament
50, then press the abundant method of Sun Yun and calculate co-toxicity coefficient (CTC).Inhibiting rate computing formula is as follows:
When CTC≤80, then composition shows as antagonism, and as 80 < CTC < 120, then composition shows as summation action, and when CTC >=120, then composition shows as synergistic effect.
Actual measurement toxicity index (ATI)=(standard agent EC
50/ reagent agent EC
50) × 100
In theoretical toxicity index (TTI)=A medicament toxicity index × mixture A percentage composition+B medicament toxicity index × mixture in the percentage composition of B
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] × 100
When CTC≤80, then composition shows as antagonism, and as 80 < CTC < 120, then composition shows as summation action, and when CTC >=120, then composition shows as synergistic effect.
Table 1 different disposal is to the toxicity test result of graw mold of tomato
| Process | EC 50(μg/mL) | ATI | TTI | Co-toxicity coefficient CTC |
| Fluorine azoles bacterium acid amides | 0.217 | 100.0 | / | / |
| Imazalil | 0.312 | 69.6 | / | / |
| Fluorine azoles bacterium acid amides 50: imazalil 1 | 0.172 | 126.2 | 99.4 | 126.9 |
| Fluorine azoles bacterium acid amides 20: imazalil 1 | 0.153 | 141.8 | 98.6 | 143.9 |
| Fluorine azoles bacterium acid amides 10: imazalil 1 | 0.131 | 165.6 | 97.2 | 170.4 |
| Fluorine azoles bacterium acid amides 5: imazalil 1 | 0.119 | 182.4 | 94.9 | 192.1 |
| Fluorine azoles bacterium acid amides 1: imazalil 1 | 0.122 | 177.9 | 84.8 | 209.8 |
| Fluorine azoles bacterium acid amides 1: imazalil 5 | 0.150 | 144.7 | 74.6 | 193.9 |
| Fluorine azoles bacterium acid amides 1: imazalil 10 | 0.174 | 124.7 | 72.3 | 172.4 |
| Fluorine azoles bacterium acid amides 1: imazalil 20 | 0.202 | 107.4 | 71.0 | 151.3 |
| Fluorine azoles bacterium acid amides 1: imazalil 50 | 0.240 | 90.4 | 70.1 | 128.9 |
Measurement result shows, when the proportioning of fluorine azoles bacterium acid amides and imazalil is between 50: 1-1: 50, has obvious synergistic effect to botrytis cinerea, and time between 10: 1-1: 10, synergistic effect is more obviously bright, and co-toxicity coefficient is all more than 170.4.
This present invention bactericidal composition can be prepared into any one formulation of applicable agricultural use by known method, reasonable formulation is suspending agent, missible oil, aqueous emulsion, microemulsion, wetting powder, water dispersible granules and paste.Be described with specific embodiment below, in all formulas, percentage is mass percent.
Embodiment 1:21% fluorine azoles bacterium acid amides imazalil suspending agent
The ratio of each components such as active component, dispersant, wetting agent and water in formula is mixed, after grinding and/or high speed shear, obtains 21% fluorine azoles bacterium acid amides imazalil suspending agent.
This embodiment is applied to control graw mold of tomato.By 21% fluorine azoles bacterium acid amides imazalil suspending agent, (fluorine azoles bacterium acid amides valid density is 50 μ g/ml by 4000 times, imazalil valid density is 2.5 μ g/ml) thin up spraying in seedling stage, continuous spraying twice, 7 days interval dispenser phases, after last medicine, the control efficiency of 7 days and 15 days is respectively 89.3%, 85.1%.20% fluorine azoles bacterium amide suspending agents by 1600 times (valid density is 80 μ g/ml) and 50% Imazalil EC by 1000 times (valid density is 500 μ g/ml), use with same method, after last medicine, 7 days preventive effects are respectively 78.2%, 80.8%, and after last medicine, the preventive effect of 15 days is respectively 78.3%, 77.4%.Fluorine azoles bacterium acid amides and the composite rear synergistic effect of imazalil are obvious, to the preventive effect of graw mold of tomato significantly better than single dose.
Embodiment 2:20.4% fluorine azoles bacterium acid amides imazalil suspending agent
The ratio of each components such as active component, dispersant, wetting agent and water in formula is mixed, after grinding and/or high speed shear, obtains 20.4% fluorine azoles bacterium acid amides imazalil suspending agent.
This embodiment is applied to control grey mould of egg plant.By 20.4% fluorine azoles bacterium acid amides imazalil suspending agent, (fluorine azoles bacterium acid amides valid density is 50 μ g/ml by 4000 times, imazalil valid density is 1 μ g/ml) thin up spraying, continuous spraying twice, 7 days interval dispenser phases, after last medicine, the control efficiency of 7 days and 15 days is respectively 89.8%, 87.2%.20% fluorine azoles bacterium amide suspending agents by 1600 times (valid density is 80 μ g/ml) and 50% Imazalil EC by 1000 times (valid density is 500 μ g/ml), use with same method, after last medicine, the preventive effect of 7 days is respectively 78.2%, 80.3%, and after last medicine, the preventive effect of 15 days is respectively 80.1%, 73.4%.Fluorine azoles bacterium acid amides and the composite rear synergistic effect of imazalil are obvious, to the preventive effect of grey mould of egg plant significantly better than single dose.
Embodiment 3:11% fluorine azoles bacterium acid amides imazalil suspending agent
The ratio of each components such as active component, dispersant, wetting agent and water in formula is mixed, after grinding and/or high speed shear, obtains 11% fluorine azoles bacterium acid amides imazalil suspending agent.
This embodiment is applied to control gray mold of cucumber.By 11% fluorine azoles bacterium acid amides imazalil suspending agent, (fluorine azoles bacterium acid amides valid density is 50 μ g/ml by 2000 times, imazalil valid density is 5 μ g/ml) thin up spraying in seedling stage, continuous spraying twice, 7 days interval dispenser phases, after last medicine, the control efficiency of 7 days and 15 days is respectively 87.2%, 88.8%.20% fluorine azoles bacterium amide suspending agents by 1600 times (valid density is 80 μ g/ml) and 50% Imazalil EC by 1000 times (valid density is 500 μ g/ml), use with same method, after last medicine, the preventive effect of 7 days is respectively 78.1%, 80.4%, and after last medicine, the preventive effect of 15 days is respectively 77.3%, 76.2%.Fluorine azoles bacterium acid amides and the composite rear synergistic effect of imazalil are obvious, to the preventive effect of gray mold of cucumber significantly better than single dose.
Embodiment 4:10.5% fluorine azoles bacterium acid amides imazalil aqueous emulsion
Former medicine, solvent, emulsifier are added together, make to be dissolved into homogeneous oil phase; By water-soluble component and the obtained aqueous phase of water mixing; Under high velocity agitation, oil phase is mixed with water, obtained 10.5% fluorine azoles bacterium acid amides imazalil aqueous emulsion.
This embodiment is applied to control grey mould fruit rot of strawberry.By 10.5% fluorine azoles bacterium acid amides imazalil aqueous emulsion, (fluorine azoles bacterium acid amides valid density is 2 μ g/ml by 2500 times, imazalil valid density is 40 μ g/ml) thin up spraying, continuous spraying twice, 7 days interval dispenser phases, after last medicine, the control efficiency of 7 days and 15 days is respectively 88.3%, 89.8%.20% fluorine azoles bacterium amide suspending agents by 1600 times (valid density is 80 μ g/ml) and 50% imazalil suspending agent by 1000 times (valid density is 500 μ g/ml), use with same method, after last medicine, the preventive effect of 7 days is respectively 76.4%, 82.4%, and after last medicine, the preventive effect of 15 days is respectively 78.3%, 80.4%.Fluorine azoles bacterium acid amides and the composite rear synergistic effect of imazalil are obvious, to the preventive effect of grey mould fruit rot of strawberry significantly better than single dose.
Embodiment 5:15% fluorine azoles bacterium acid amides imazalil microemulsion
Former medicine, solvent, emulsifier are added together, make to be dissolved into homogeneous oil phase; By water-soluble component and the obtained aqueous phase of water mixing; Under high velocity agitation, oil phase is mixed with water, obtained 15% fluorine azoles bacterium acid amides imazalil microemulsion.
This embodiment is applied to control Botrytis cinerea.By 15% fluorine azoles bacterium acid amides imazalil microemulsion, (fluorine azoles bacterium acid amides valid density is 30 μ g/ml by 1000 times, imazalil valid density is 120 μ g/ml) thin up spraying in seedling stage, continuous spraying twice, 7 days interval dispenser phases, after last medicine, the control efficiency of 7 days and 15 days is respectively 89.7%, 85.8%.20% fluorine azoles bacterium amide suspending agents by 1600 times (valid density is 80 μ g/ml) and 50% imazalil suspending agent by 1000 times (valid density is 500 μ g/ml), use with same method, after last medicine, the preventive effect of 7 days is respectively 84.5%, 80.4%, and after last medicine, the preventive effect of 15 days is respectively 81.1%, 78.2%.Fluorine azoles bacterium acid amides and the composite rear synergistic effect of imazalil are obvious, to the preventive effect of Botrytis cinerea significantly better than single dose.
Embodiment 6:20.4% fluorine azoles bacterium acid amides Imazalil EC
Active component, emulsifier and the auxiliary agent ratio in formula is added in mixing kettle successively, stirs, obtained 20.4% fluorine azoles bacterium acid amides Imazalil EC.
It is sick that this embodiment is applied to control grape grey mould.By 20.4% fluorine azoles bacterium acid amides Imazalil EC, (fluorine azoles bacterium acid amides valid density is 4 μ g/ml by 1000 times, imazalil valid density is 200 μ g/ml) thin up spraying in seedling stage, continuous spraying twice, 7 days interval dispenser phases, the control efficiency of last 7 days and 15 days is respectively 82.3%, 78.4%.20% fluorine azoles bacterium amide suspending agents by 1600 times (valid density is 80 μ g/ml) and 50% Imazalil EC by 1000 times (valid density is 500 μ g/ml), use with same method, after last medicine, the preventive effect of 7 days is respectively 81.7%, 77.2%, and after last medicine, the preventive effect of 15 days is respectively 81.5%, 74.1%.Fluorine azoles bacterium acid amides and the composite rear synergistic effect of imazalil are obvious, to the preventive effect of grape grey mould significantly better than single dose.
Embodiment 7:24% fluorine azoles bacterium acid amides imazalil wetting powder
The ratio in formula such as active component, various auxiliary agent and filler is fully mixed, after ultra-fine pulverizer disintegrating, obtains 24% fluorine azoles bacterium acid amides imazalil wetting powder.
This embodiment is applied to prevents and treats sigatoka.By 24% fluorine azoles bacterium acid amides imazalil wetting powder, (fluorine azoles bacterium acid amides valid density is 40 μ g/ml by 5000 times, imazalil valid density is 8 μ g/ml) thin up spraying, continuous spraying twice, 7 days interval dispenser phases, after last medicine, the control efficiency of 7 days and 15 days is respectively 85.1%, 82.3%.20% fluorine azoles bacterium amide suspending agents by 1600 times (valid density is 80 μ g/ml) and 50% imazalil suspending agent by 1000 times (valid density is 500 μ g/ml), use with same method, after last medicine, the preventive effect of 7 days is respectively 78.2%, 41.4%, and after last medicine, the preventive effect of 15 days is respectively 72.5%, 32.7%.Fluorine azoles bacterium acid amides and the composite rear synergistic effect of imazalil are obvious, to the preventive effect of sigatoka significantly better than single dose.
Embodiment 8:22% fluorine azoles bacterium acid amides imazalil wetting powder
The ratio in formula such as active component, various auxiliary agent and filler is fully mixed, after ultra-fine pulverizer disintegrating, obtains 22% fluorine azoles bacterium acid amides imazalil wetting powder.
This embodiment is applied to prevents and treats powdery mildew of cucumber.By 22% fluorine azoles bacterium acid amides imazalil wetting powder, (fluorine azoles bacterium acid amides valid density is 20 μ g/ml by 1000 times, imazalil valid density is 200 μ g/ml) thin up spraying in seedling stage, continuous spraying twice, 7 days interval dispenser phases, after last medicine, the control efficiency of 7 days and 15 days is respectively 82.3%, 78.7%.20% fluorine azoles bacterium amide suspending agents by 1600 times (valid density is 80 μ g/ml) and 50% imazalil suspending agent by 1000 times (valid density is 500 μ g/ml), use with same method, after last medicine, the preventive effect of 7 days is respectively 82.3%, 55.1%, and after last medicine, the preventive effect of 15 days is respectively 78.7%, 41.2%.Fluorine azoles bacterium acid amides and the composite rear synergistic effect of imazalil are obvious, to the preventive effect of powdery mildew of cucumber significantly better than single dose.
Embodiment 9:85% fluorine azoles bacterium acid amides imazalil water dispersible granules
Active component, dispersant, wetting agent, disintegrant and the filler ratio in formula is mixed, becomes wetting powder through air-flow crushing, then add a certain amount of water mixing extruding and make material.85% fluorine azoles bacterium acid amides imazalil water dispersible granules is obtained after drying screening.
This embodiment is applied to the water prevention rice sheath blight.By 85% fluorine azoles bacterium acid amides imazalil aqueous dispersion by (fluorine azoles bacterium acid amides valid density is 40 μ g/ml, imazalil valid density is 40 μ g/ml) thin up spraying in seedling stage, continuous spraying twice, 7 days interval dispenser phases, after last medicine, the control efficiency of 7 days and 15 days is respectively 84.3%, 82.2%.20% fluorine azoles bacterium amide suspending agents presses (valid density is 500 μ g/ml) by (valid density is 80 μ g/ml) and 50% Imazalil EC, use with same method, after last medicine, the preventive effect of 7 days is respectively 76.7%, 42.1%, and after last medicine, the preventive effect of 15 days is respectively 74.2%, 35.2%.Fluorine azoles bacterium acid amides and the composite rear synergistic effect of imazalil are obvious, to the preventive effect of rice sheath blight disease significantly better than single dose.
Embodiment 10:5% fluorine azoles bacterium acid amides imazalil paste
Get said ratio raw material, first in water, slowly add polyvinyl alcohol and bentonite, limit edged is stirred to fully swelling, high fat film and potassium sorbate is added during fast cooling, limit edged stirs, and adds fluorine azoles bacterium acid amides and imazalil, complement to 100% with water after cooling, till stirring, obtained 5% fluorine azoles bacterium acid amides imazalil paste.
This embodiment is applied to apple canker.Morbidity place of strain bar scraped off, by 6% fluorine azoles bacterium acid amides imazalil paste application, in morbidity place, (fluorine azoles bacterium acid amides dosage is 1g/m
2, imazalil dosage is 4g/m
2), after medicine, the control efficiency of 15 days, 30 days, 60 days is respectively 100%, 96.8%, 87.5%.6g/m pressed by 2% fluorine azoles bacterium acid amides paste
2, 6g/m pressed by 3% imazalil paste
2, use with same method, after medicine, the preventive effect of 15 days is respectively 33.1% and 89.7%; After medicine, 30 days is 40.5% and 80.2%, and after medicine, 60 days preventive effects are 31.7% and 77.1%.Fluorine azoles bacterium acid amides and the composite rear preventive effect to apple canker of imazalil are significantly better than single dose.
Claims (5)
1. a bactericidal composition, is characterized in that: in described bactericidal composition, active ingredient is fluorine azoles bacterium acid amides (A) and imazalil (B), and (A) is 50: 1-1: 50 with the mass ratio of (B).
2. bactericidal composition according to claim 1, is characterized in that: active ingredient (A) is 10: 1-1: 10 with the mass ratio of (B).
3. bactericidal composition according to claim 1 or 2, is characterized in that: active ingredient (A) is 5%-85% with the gross mass percentage composition of (B).
4. bactericidal composition according to claim 3, is characterized in that: the formulation of described bactericidal composition is suspending agent, missible oil, aqueous emulsion, microemulsion, wetting powder, water dispersible granules, paste.
5. bactericidal composition according to claim 1 is for preventing and treating the purposes of crop pest.
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| CN101631465A (en) * | 2007-02-05 | 2010-01-20 | 巴斯夫欧洲公司 | Fungicidal mixtures comprising substituted 1-methylpyrazol-4-ylcarboxanilides |
| US20100331181A1 (en) * | 2008-02-28 | 2010-12-30 | Basf Se | Method for Protecting Cereals From Being Infected By Fungi |
| CN101965128A (en) * | 2008-02-05 | 2011-02-02 | 巴斯夫欧洲公司 | Plant health composition |
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2014
- 2014-10-30 CN CN201410637190.8A patent/CN104488878A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101257798A (en) * | 2005-08-05 | 2008-09-03 | 巴斯福股份公司 | Fungicidal mixtures containing substituted 1-methyl pyrazol-4-yl carboxylic acid anilides |
| CN101484009A (en) * | 2006-05-03 | 2009-07-15 | 巴斯夫欧洲公司 | Use of arylcarboxylic acid biphenylamides for seed treatment |
| CN101631465A (en) * | 2007-02-05 | 2010-01-20 | 巴斯夫欧洲公司 | Fungicidal mixtures comprising substituted 1-methylpyrazol-4-ylcarboxanilides |
| CN101965128A (en) * | 2008-02-05 | 2011-02-02 | 巴斯夫欧洲公司 | Plant health composition |
| US20100331181A1 (en) * | 2008-02-28 | 2010-12-30 | Basf Se | Method for Protecting Cereals From Being Infected By Fungi |
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