CN108967429A - A kind of bactericidal composition and application thereof containing zoxamide and penflufen-containing - Google Patents
A kind of bactericidal composition and application thereof containing zoxamide and penflufen-containing Download PDFInfo
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- CN108967429A CN108967429A CN201811250041.0A CN201811250041A CN108967429A CN 108967429 A CN108967429 A CN 108967429A CN 201811250041 A CN201811250041 A CN 201811250041A CN 108967429 A CN108967429 A CN 108967429A
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- Prior art keywords
- penflufen
- zoxamide
- bactericidal composition
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
- A01N37/20—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof containing the group, wherein Cn means a carbon skeleton not containing a ring; Thio analogues thereof
Abstract
The present invention relates to a kind of bactericidal composition and application thereof containing zoxamide and penflufen-containing, belong to technical field of pesticide, the active constituent of the bactericidal composition includes zoxamide and penflufen-containing, the weight ratio of zoxamide and penflufen-containing is 1:60~60:1, wherein the weight percentage of zoxamide and bactericidal composition shared by penflufen-containing is 20%~75%, bactericidal composition of the present invention is for preventing and treating pepper anthracnose and capsicum epidemic disease, it is synergistic obvious, to reduce the usage amount of pesticidal preparations, while reducing peasant's drug cost, reduce the influence to environment.
Description
Technical field
The present invention relates to a kind of bactericidal composition and application thereof containing zoxamide and penflufen-containing, belongs to pesticide technology
Field.
Background technique
Pepper anthracnose (Colletotrichum capsici) is a kind of fungal disease that capsicum often sends out, and is mostly occurred
On blade and fruit, blade damage symptoms: scab just be chlorisis water soaked spots, gradually become brown, scab subcircular and in
Between be light gray, the aggrieved scab of fruit is brown, and water stain shape subcircular or irregular shape have the concentric ring speckle slightly swelled, fruit
Real killed rear easy drying shrinkage.With the expansion year by year of pepper planting area, the kind of introduction increases year by year, in addition long-term continuous cropping, makes
It obtains pepper anthracnose onset area constantly to expand, causes the anthracnose for belonging to Minor diseases to rise to Major Diseases, cause capsicum
The underproduction brings massive losses to production.
Capsicum epidemic disease is a kind of crushing soil biography oomycetes disease, and pathogen can infect the work such as capsicum, eggplant, tomato cucumber
Object endangers the positions such as root, stem, leaf and the fruit of capsicum, in the case where weather conditions are suitable for, can break out sprawling in a short time,
Serious financial consequences are caused to capsicum production.
Pepper anthracnose and capsicum epidemic disease are that the universal and serious worldwide disease of harm occurs in the process for chili growth.Mesh
Before, chemical prevention is still the main control measure of pepper anthracnose and capsicum epidemic disease, this not only easily causes vegetables and environmental pollution,
Also easily induce the drug resistance of pathogen.
Zoxamide is a kind of efficient protectiveness acid amide fungicides, molecular formula C13H22NO5PS；Chemical name:
(RS)-chloro- N- of 3,5- bis- (the chloro- 1- ethyl -1- methyl -2- oxopropyl of 3-) is to methyl benzamide；The effect of zoxamide
Mechanism be in Oomycete fungicide it is very unique, it passes through the rupture of the combination of tubulin-subunit and microtubule cytoskeleton
To inhibit sclerotium to divide.Zoxamide do not influence to move about spore in travelling, sporangiocyst formed or sprout, along with the of sclerotium division
One circulation, the elongation of germ tube is suppressed, so that germ be prevented to penetrate host plant.Controlling object is mainly used for preventing and treating oomycetes
Guiding principle the disease such as late blight of potato and early blight of tomato, cucumber downy mildew and downy mildew of garpe, to the gray mold of gourd, fruit and vegetable, brown
Pinta and powdery mildew etc. have certain activity.
Penflufen-containing (penflufen), chemical name: (N- (fluoro- 1, the 3- bis- of 2- [1,3- dimethylbutyl phenyl] -5-
Methyl-1 H- pyrazole-4-carboxamide, No. CAS: 494793-67-8, fungicidal spectrum is extremely wide, to a variety of cause of diseases such as basidiomycetes, Fungi Imperfecti
Microbial disease has comparable effect.
The present invention has made intensive studies zoxamide, penflufen-containing and combinations thereof, by the base largely tested
On plinth, discovery zoxamide combines within the scope of certain proportion with penflufen-containing increases pepper anthracnose and capsicum epidemic disease performance
Effect effect, after further study, completes the present invention.
Summary of the invention
The purpose of the present invention in view of the above problems, provides that a kind of resistance risk is small, synergistic effect is obvious, the lasting period
Long, environmentally safe bactericidal composition, the bactericidal composition include zoxamide and penflufen-containing.
It is another object of the present invention to be used to prevent and treat cucumber downy mildew, powdery mildew of cucumber, Ma Ling with the bactericidal composition
The multiple diseases such as potato late blight, early blight of tomato, pepper anthracnose, cucumber anthracnose, black scurf of potato, a drug can
A variety of pest and disease damages are prevented and treated, are preferred for preventing and treating pepper anthracnose and capsicum epidemic disease.
To achieve the above object, the technical scheme adopted by the invention is that:
The weight ratio of a kind of bactericidal composition containing zoxamide and penflufen-containing, zoxamide and penflufen-containing is
1:60~60:1.
Preferably, weight ratio 1:20~20:1 of the zoxamide and penflufen-containing.
Preferably, weight ratio 1:8~8:1 of the zoxamide and penflufen-containing.
The weight of bactericidal composition shared by active constituent zoxamide and penflufen-containing in bactericidal composition of the present invention
Percentage composition is 20%~75%, further preferably 25%~50%.
Bactericidal composition of the invention is prepared by conventional method in Pesticide formulation and is suitble to agriculturally use
Any one type of dosage form.
Preferably, the dosage form include wettable powder, suspending agent, microcapsule suspending agent, dispersible oily suspoemulsion, missible oil,
Water dispersible granules, granule, microemulsion, aqueous emulsion.
Bactericidal composition of the invention further includes carrier and auxiliary agent.
Further, the carrier is one of water, solvent or filler or a variety of, and water is preferably deionized water.
Further, the auxiliary agent includes at least a kind of surfactant and may be used also according to different use occasion and demand
Solvent, dispersing agent, wetting agent, preservative, defoaming agent, thickener, antifreezing agent, disintegrating agent, binder, stabilizer, cyst wall is added
Material, sustained release agent.
The method of administration of bactericidal composition of the invention include be impregnated with, instil, being poured, spraying, being sprayed, dusting, distribution or
The methods of smoke is administered to plant, plant part, plant propagation material or plant and is growing or needs in the soil wherein grown
In earth or cultivation medium.
Bactericidal composition of the invention can be based on dosage form, i.e., each substance has mixed in composition, composition
Ingredient can also be provided with unit dose form, mixed in bucket or tank using preceding, be then diluted to required concentration, wherein it is preferred that with
Based on dosage form provided by the invention.
Composition of the invention can also be administered in combination with other active components, such as expanding activity profile or preventing shape
At resistance.Other active constituents such as fungicide, bactericide, attractant, insecticide, acaricide, nematicide, life
Long regulator, herbicide, safener, fertilizer or semiochemical etc..
Compared with prior art, composition pesticide of the invention has the beneficial effect that
(1) application is combined by the mutually different zoxamide of the mechanism of action and penflufen-containing, overcomes or/and prolongs
The generation for having delayed pathogen resistance, extends controlling object and method of application.
(2) composition, it is synergistic obvious, to reduce the usage amount of pesticidal preparations, reduce peasant's medication at
This while, reduces the influence to environment.
Specific embodiment
To better describe the present invention, following exemplary embodiment is provided.Content mentioned by embodiment cannot recognize
To be limitation of the invention, the selection of material prescription can be according to the actual situation by other equivalent or replacing with similar purpose
It is replaced for feature.That is, being such as not particularly limited, each feature is a series of equivalent or similar characteristics a example, this
The protection scope of the technical solution of invention is subject to claim and is limited.
One, indoor biological activity assay
1. zoxamide is with penflufen-containing combination preparation to the indoor toxicity test of pepper anthracnose
Subjects: pepper anthracnose
Test method: according to preliminary experiment as a result, weighing suitable raw medicine in centrifuge tube, suitable dimethyl is added
Sulfoxide dissolves raw medicine, and mother liquor is made.The medical fluid dissolved is diluted to 5 concentration gradients in proportion, is added to and is cooled to 45
DEG C or so PDA culture medium, the culture medium containing fungicide is made.With the punch of sterilizing diameter 7mm will be broken into for examination bacterium plate
Small bacteria cake, every ware transplants a bacteria cake in center, is repeated 3 times.It is compared with sterile water.It sets in insulating box and is cultivated at 28 DEG C, to
After control medium germ grows well, the diameter of each processing bacterium colony is measured with vertical cross method, is averaged, is calculated as follows
Inhibiting rate,
Concentration EC in inhibiting is calculated with least square method50, then according to Sun Yunpei's Method calculating co-toxicity coefficient (CTC)
Mode of application determines to use co-toxicity coefficient (CTC) method.The calculation formula of co-toxicity coefficient is as follows:
Toxicity index (TI)=standard agent EC50/ reagent agent EC50×100
Theoretical toxicity index (TTI)=standard agent toxicity index × standard agent in mixing assembles percentage+
Reagent agent toxicity index × reagent agent percentage in mixing assembles
Actual toxicity index (ATI)=standard single dose EC50Value/mixture EC50Value × 100
Co-toxicity coefficient (CTC)=survey toxicity index/theoretical toxicity index × 100
Co-toxicity coefficient classification: the mixture of CTC>120 have synergistic function, the mixture of CTC<80 have antagonism, 80≤
The mixture of CTC≤120 has summation action.Test result such as table 1:
1 zoxamide of table is with penflufen-containing combination preparation to the indoor toxicity test of pepper anthracnose
Know from upper 1 test result of table, penflufen-containing is greater than zoxamide, benzoyl bacterium to the inhibitory activity of pepper anthracnose
The co-toxicity coefficient that the weight ratio of amine and penflufen-containing prevents and treats pepper anthracnose in the range of 1:60-60:1 is all larger than 120, table
Both bright composition has synergistic function, wherein when the weight ratio of the two is 5:2, co-toxicity coefficient 188.51 is right
Pepper anthracnose inhibitory activity is best.
2. zoxamide is with penflufen-containing combination preparation to the indoor toxicity test of capsicum epidemic disease
Subjects: capsicum epidemic disease
Test method: according to trial test as a result, singly according to zoxamide and the weight proportion and two of penflufen-containing
Agent is configured to female medicine of high concentration, is diluted to 5 concentration gradients respectively, and be added in quantitative PDA culture medium, each processing 3
A repetition sprays the sterile water of equivalent as blank control.The capsicum epidemic disease fungus block (d=4mm) cultivated in advance is placed in drug containing
PDA plate center, (25 DEG C) of constant temperature are cultivated, and measure colony diameter after 10d.Compared with blank control, each processing is calculated to mycelia
The fungistatic effect of growth carries out significance difference analysis to test result using SPSS data processing system and calculates reagent agent
To the toxicity test result of phytophthora capsici.Concentration EC50 in inhibiting is calculated with least square method, then is calculated altogether according to Sun Yunpei's Method
Malicious coefficient (CTC) test result such as table 2: mode of application determines to use co-toxicity coefficient (CTC) method.The calculating of co-toxicity coefficient is public
Formula is as follows: toxicity index (TI)=standard agent EC50/ reagent agent EC50×100
Theoretical toxicity index (TTI)=standard agent toxicity index × standard agent in mixing assembles percentage+
Reagent agent toxicity index × reagent agent percentage in mixing assembles
Actual toxicity index (ATI)=standard single dose EC50Value/mixture EC50Value × 100
Co-toxicity coefficient (CTC)=survey toxicity index/theoretical toxicity index × 100
Co-toxicity coefficient classification: the mixture of CTC>120 have synergistic function, the mixture of CTC<80 have antagonism, 80≤
The mixture of CTC≤120 has summation action.
2 zoxamide of table is with penflufen-containing combination preparation to the indoor toxicity test of capsicum epidemic disease
From the indoor toxicity test of upper table 2 it is found that zoxamide compounded with penflufen-containing or mixture after, weight ratio is 1:
Within the scope of 60-60:1, there is synergistic function to the prevention and treatment to capsicum epidemic disease, different ratio, synergistic effect is different, works as the two
Weight ratio be 7:6 when, co-toxicity coefficient 195.70, synergy is most significant.
Two, example of formulations
Embodiment 1:33% zoxamide penflufen-containing suspending agent (3:8)
For above-mentioned raw materials through mixing, high speed shear disperses 30min, after being sanded to partial size with sand mill less than 10 microns
33% zoxamide penflufen-containing suspending agent is made.
Embodiment 2:28% zoxamide penflufen-containing water dispersible granules (5:2)
Above-mentioned material is mixed in proportion, is crushed with micro jet, through mediating, fluidized bed is then added and makes
Through sampling analysis after being granulated in grain drying machine, dry, sieve, 28% zoxamide penflufen-containing moisture can be prepared by
Shot agent.
Embodiment 3:40% zoxamide penflufen-containing suspending agent (7:6)
Above-mentioned material is mixed in proportion, after being uniformly dispersed through high speed shear, being sanded in sand mill, can be prepared by 40% benzene
Acyl bacterium amine penflufen-containing suspending agent.
Embodiment 4:52% zoxamide penflufen-containing water dispersible granules (10:3)
Above-mentioned material is mixed in proportion, is crushed with micro jet, through mediating, fluidized bed is then added and makes
Through sampling analysis after being granulated in grain drying machine, dry, sieve, 52% zoxamide penflufen-containing moisture can be prepared by
Shot agent.
Embodiment 5:30.5% zoxamide penflufen-containing wettable powder (60:1)
Said components are mixed in proportion, and grinds, crush, can be prepared by 30.5% zoxamide penflufen-containing can
Wet powder.
Embodiment 6:61% zoxamide penflufen-containing water dispersible granules (1:60)
It is crushed with micro jet, through mediating, be then granulated, dried in addition fluidized-bed granulation dryer,
Through sampling analysis after screening, it can be prepared by 61% zoxamide penflufen-containing water dispersible granules.
Embodiment 7:20% zoxamide penflufen-containing suspending agent (1:1)
Above-mentioned material is mixed in proportion, after being uniformly dispersed through high speed shear, being sanded in sand mill, can be prepared by 20% benzene
Acyl bacterium amine penflufen-containing suspending agent.
Embodiment 8:75% zoxamide penflufen-containing water dispersible granules (10:7)
Above-mentioned material is mixed in proportion, is crushed with micro jet, through mediating, fluidized bed is then added and makes
Through sampling analysis after being granulated in grain drying machine, dry, sieve, 75% zoxamide penflufen-containing moisture can be prepared by
Shot agent.
Three, field trial
1. zoxamide is with penflufen-containing combination preparation to the field control effectiveness test of pepper anthracnose
Subjects: pepper anthracnose
Reagent agent: processing group: embodiment 1-4；Control group: 50% zoxamide wettable powder, 15% penta benzene pyrrole bacterium
Amine suspending agent；Setting clear water is blank control.
Test method: first the weighing of each processing medical fluid is matched before test, first sprays blank district with clear water, then successively
Each treatment region medical fluid of even spraying.1d investigates disease index radix before the application for trial zone, and 10d carries out control efficiency tune after application
It looks into, investigation method is investigated using method of random sampling.Every cell takes 5 plants at random, and 2 branch numbers of often selecting good strains in the field for seed are listed, medicine prodrug
All from the full lamina of branch point, 30 leaves of number carry out morbidity series investigation down afterwards, and every cell investigates 300 leaves, every processing investigation 1200
Piece leaf determines onset grade according to the occurring degree of each blade, then calculates separately disease index and preventive effect, and test result is shown in Table 3.
The grade scale of pepper anthracnose: 0 grade, disease-free spot；L grades, lesion area accounts for 2% or less leaf (fruit) area；3
Grade, lesion area account for the 3%-8% of leaf (fruit) area；5 grades, lesion area accounts for the 9%-15% of leaf (fruit) area；7 grades,
Lesion area accounts for the 16%-25% of leaf (fruit) area；9 grades, lesion area accounts for 25% or more of leaf (fruit) area.
3 zoxamide of table is with penflufen-containing combination preparation to the field control effectiveness test of pepper anthracnose
From the field test results of table 3 it is found that benzoyl penflufen-containing is higher than benzoyl bacterium to pepper anthracnose control efficiency
Amine, zoxamide single dose compared with the combination preparation of penflufen-containing, preventive effect obviously increase, when the effective component of combination preparation is used
When amount is 275 grams/ha, preventive effect reaches 79% or more, during test, is administered in region and does not generate phytotoxicity to crop.
2. zoxamide is with penflufen-containing composite preparation to the field control effectiveness test of capsicum epidemic disease
Subjects: capsicum epidemic disease
Test medicine: processing group: embodiment 1-4；Control group: 30% zoxamide wettable powder, 15% penta benzene pyrrole bacterium
Amine suspending agent；Setting clear water is blank control.
Test method: each plot area is 25m2, each processing is repeated 4 times, and above-mentioned formula is diluted with water, and uses WF-16
Type knapsack hand sprayer spray, cell spouting liquid are applied by 675 liters/hectare.It is administered 2 times altogether, capsicum epidemic disease initial stage first
Secondary application is administered for second after 7d.
Investigation method: investigation is without radix before medicine, and 15d and 30d investigates preventive effect after last medicine, investigates 2 times altogether.Every cell
5 points of random searching, every is investigated 5 plants, record diseased plant number, dead strain number or obviously withered plant number, and calculate diseased plant rate and
Control efficiency, test result are shown in Table 4:
Diseased plant rate (%)=(diseased plant number/investigation strain number) × 100
Control efficiency (%)=[(CK-PT)/CK] × 100
In formula: CK is diseased plant rate after blank district application, and PT is diseased plant rate after chemicals treatment district application.Test result is shown in
The following table 4:
4 zoxamide of table is with penflufen-containing combination preparation to the field control effectiveness test of capsicum epidemic disease
As can be seen from Table 4, zoxamide is with penflufen-containing combination preparation to the control efficiency of capsicum epidemic disease, hence it is evident that high
It is synergistic obvious in single formulation, it is synergistic obvious at first when zoxamide is 7:6 with penflufen-containing mix ratio,
Preventive effect is best, and effective component amount of application is 160 grams/ha, and preventive effect is up to 74.86%, during test after last is administered 30 days, not
It was found that having adverse effect to crop.
Based on the above description of the preferred embodiments of the present invention, through the above description, related personnel completely can be with
Without departing from the scope of the technological thought of the present invention', various changes and amendments are carried out.The technical scope of this invention
It is not limited to the contents of the specification, it is necessary to determine the technical scope according to the scope of the claims.
Claims (10)
1. a kind of bactericidal composition containing zoxamide and penflufen-containing, which is characterized in that the activity of the bactericidal composition
Ingredient includes zoxamide and penflufen-containing, and the weight ratio of the zoxamide and penflufen-containing is 1:60~60:1.
2. a kind of bactericidal composition containing zoxamide and penflufen-containing according to claim 1, it is characterised in that: institute
State weight ratio 1:20~20:1 of zoxamide and penflufen-containing.
3. a kind of bactericidal composition containing zoxamide and penflufen-containing according to claim 1, it is characterised in that: institute
State weight ratio 1:8~8:1 of zoxamide and penflufen-containing.
4. a kind of bactericidal composition containing zoxamide and penflufen-containing according to claim 1, it is characterised in that: institute
The weight percentage for stating bactericidal composition shared by zoxamide and penflufen-containing is 20%~75%.
5. a kind of bactericidal composition containing zoxamide and penflufen-containing according to claim 1, it is characterised in that: institute
The weight percentage for stating bactericidal composition shared by zoxamide and penflufen-containing is 25%~50%.
6. a kind of bactericidal composition containing zoxamide and penflufen-containing according to claim 1, it is characterised in that: institute
It states bactericidal composition and is aided with auxiliary element and is prepared into and be suitble to any one dosage form for agriculturally using.
7. a kind of bactericidal composition containing zoxamide and penflufen-containing according to claim 6, it is characterised in that: institute
State dosage form include wettable powder, suspending agent, microcapsule suspending agent, dispersible oily suspoemulsion, missible oil, water dispersible granules, granule,
Microemulsion, aqueous emulsion.
8. a kind of bactericidal composition containing zoxamide and penflufen-containing according to claim 1, it is characterised in that: institute
Stating bactericidal composition can also adjust with fungicide, bactericide, attractant, insecticide, acaricide, nematicide, growth
Save one of agent, herbicide, safener, fertilizer, semiochemical or a variety of combined administrations.
9. a kind of purposes of the bactericidal composition as described in any claim in claim 1-8, which is characterized in that described
Purposes is for preventing and treating corps diseases.
10. purposes according to claim 9, it is characterised in that: the corps diseases are pepper anthracnose and capsicum epidemic disease
Disease.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104170826A (en) * | 2013-05-21 | 2014-12-03 | 陕西美邦农药有限公司 | Bactericidal composition containing penflufen and amide |
| CN104430376A (en) * | 2014-11-04 | 2015-03-25 | 崔淑华 | Bactericidal composition containing amisulbrom and zoxamide and application of bactericidal composition |
| CN108207975A (en) * | 2018-01-12 | 2018-06-29 | 广东广康生化科技股份有限公司 | A kind of microbicide compositions containing folpet and penflufen-containing |
-
2018
- 2018-10-25 CN CN201811250041.0A patent/CN108967429A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104170826A (en) * | 2013-05-21 | 2014-12-03 | 陕西美邦农药有限公司 | Bactericidal composition containing penflufen and amide |
| CN104430376A (en) * | 2014-11-04 | 2015-03-25 | 崔淑华 | Bactericidal composition containing amisulbrom and zoxamide and application of bactericidal composition |
| CN108207975A (en) * | 2018-01-12 | 2018-06-29 | 广东广康生化科技股份有限公司 | A kind of microbicide compositions containing folpet and penflufen-containing |
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Application publication date: 20181211 |