CN108935493A - A kind of bactericidal composition of prevention and control iris soft rot - Google Patents
A kind of bactericidal composition of prevention and control iris soft rot Download PDFInfo
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- CN108935493A CN108935493A CN201810511900.0A CN201810511900A CN108935493A CN 108935493 A CN108935493 A CN 108935493A CN 201810511900 A CN201810511900 A CN 201810511900A CN 108935493 A CN108935493 A CN 108935493A
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- bactericidal composition
- agent
- zhongshengmycin
- jervine
- graphene oxide
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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
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
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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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
- A01N47/18—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, directly attached to a heterocyclic or cycloaliphatic ring
-
- 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
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
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- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention belongs to plant disease Control Technology fields, disclose a kind of bactericidal composition of prevention and control iris soft rot, each component including following weight percent: jervine 6~15%, Zhongshengmycin 5~12%, graphene oxide 0.1~0.7%, surplus auxiliary agent；The dosage form of the bactericidal composition is any one of wettable powder, suspending agent or water dispersible granules.For the present invention by the way that graphene oxide and jervine, Zhongshengmycin to be used in compounding, three belongs to the fungicide of different role mechanism, and mutual mixture will not generate conflict；There is good synergistic function in a certain range, preventive effect is higher than single dose, and drug effect is more longlasting, substantially increases germicidal efficiency, has good control effect to iris soft rot；Pathogen will not be made to develop drug resistance, expand fungicidal spectrum, reduced dosage and cost, can be used for the prevention and treatment of agricultural production crop disease.
Description
Technical field
The present invention relates to plant disease Control Technology fields, and in particular, to a kind of sterilization group of prevention and control iris soft rot
Close object.
Background technique
The universal ornamental value with higher of Jris (Iris L.) plant is widely used in garden in foreign countries already
Greening.But iris is generally susceptible to suffer from soft rot, and the weak kind of especially some disease resistances, in serious morbidity, the infection rate of plant reaches
95% or more in addition the death rate up to 100%, therefore greatly affected the popularization and application of iris.Iris soft rot mainly by
Carrot soft rot Erwinia carrot pvs oryzae and oryzicola (Erwinia carotovora pv.carotovora (Jones) Bergey)
Caused bacterial disease.The means of prevention of iris soft rot is less at present, and preventive effect is undesirable.Such as Yin Xinyan (2011)
The generation that prevention and control iris soft rot is used in soil is added to using 72% agricultural streptomycin of various concentration, when concentration is
0.6g/m3When disease incidence be 16.7%, relative control effect only up to 77.22%.Discovery is not especially high for iris soft rot yet at present
The chemical agent of effect.
Black false hellebore is Liliaceae Veratrum, is herbaceos perennial, and jervine is present in Liliaceae Veratrum and spray
It sneezes in careless platymiscium, raw material is the seed of sabadilla and the rhizome of white black false hellebore, RADIX ET RHIZOMA VERATRI NIGRI.Plant material is extracted or mentioned through ethyl alcohol
It takes obtained.Correlative study shows jervine to plant disease such as brown rot, gray mold, soft rot, scab, bacillary perforation
Disease, downy mildew, phytophthora root rot, powdery mildew, late blight, dry rot have good inhibiting effect.
Zhongshengmycin belongs to N- glycoside antibiotic, and antimicrobial spectrum is very wide, can resist Gram-positive, negative bacteria well,
Multiple diseases caused by mycobacteria, saccharomycete and filamentous fungi.To Bacteria erwinia, angular leaf spot fungus, leaf spot bacteria, rice blast
Bacterium, Target spot pathogen, gibberellic hypha etc. all have apparent antibacterial activity.Its mechanism of action are as follows: by inhibiting microorganism albumen
Matter synthesizes and keeps microorganism dead；Made by making der Pilz deformation of filament, inhibiting spore germination or directly killing the modes such as spore
For filamentous fungi；The generation of the precursor substance of protective plant protecting agent and lignin in plant can be stimulated, to improve the disease-resistant of plant
Ability increases income conducive to crop yield.
Graphene oxide (GO) is a kind of two-dimensional surface material of monoatomic layer, has very big specific surface area.Due to GO
There are many oxygen-containing groups on surface, so GO also has good hydrophily.The sterilization mechanism of GO material is substantially divided at present
For following 3 kinds of mainstream opinions: the edge of nano material damaging cells film as blade leads to intracellular DNA, RNA and thin
Born of the same parents' device etc. leaks into extracellularly, leads to cell death；The oxidative pressure that material generates can be with the enzyme and albumen of oxidizing bacteria cell
DNA can be oxidizing to and untwist and be broken, while can also aoxidize mitochondria by matter, and energy supply is made to go wrong；Nano flake packet
Cell membrane is wrapped up in and wound, bacterium is come out with ambient environment, some important channels blocked on cell membrane allow cell cannot
Energy exchange is generated with surrounding.
On the one hand, jervine and Zhongshengmycin all have higher bactericidal activity, if but long-term exclusive use, it is easy to make
Plant germ develops drug resistance, and then generates the problems such as dosage increases, preventive effect reduces, the lasting period shortens.Meanwhile pesticide is anti-
Multiple use will also result in the degradation rate decline of pesticide in the soil, be unfavorable for very much environment sustainable development.On the other hand, stone is aoxidized
Although black alkene bactericidal effect is fine, long-term be used alone can cause a degree of damage to normal plant cells.It will be different
The effective component of the mechanism of action is reasonably compounded, and is that the damage that delays disease to develop drug resistance and reduce to host plant is non-
Normal effective common method, and can be according to the effect in production application, to judge that this compounding is synergistic effect or short of money
Anti- effect.But for jervine, Zhongshengmycin and the compounded combination of graphene oxide three, there has been no excessively related reports at present
Road.
Summary of the invention
The purpose of the invention is to overcome the above-mentioned deficiency of the prior art, a kind of sterilization of prevention and control iris soft rot is provided
Composition, for the present invention by the way that graphene oxide and jervine, Zhongshengmycin to be used in compounding, three belongs to different role mechanism
Fungicide, mutual mixture will not generate conflict；There is good synergistic function in a certain range, preventive effect is higher than single dose,
Drug effect is more longlasting.
To achieve the goals above, the present invention is achieved by following scheme:
A kind of bactericidal composition of prevention and control iris soft rot, each component including following weight percent: jervine 6~
15%, Zhongshengmycin 5~12%, graphene oxide 0.1~0.7%, surplus auxiliary agent；The dosage form of the bactericidal composition is wettable
Any one of property pulvis, suspending agent or water dispersible granules.
Three kinds of ingredient mechanism of action points are different in the present composition, and the present inventor passes through a large number of experiments recipe determination, mention
Gone out a kind of Compositional type bactericidal composition of the invention, i.e., using jervine, Zhongshengmycin and graphene oxide as effective component, into
Capable Recompounded multielement bactericidal composition.Since the mechanism of action point of these three ingredients is different, by jervine, Zhongshengmycin and oxidation
Graphene compounds in certain proportion, has good synergy synergistic effect, substantially increases germicidal efficiency, and can prolong well
The generation of slow Disease Resistance, expands fungicidal spectrum, reduces drug cost, improves practical preventive effect, can be used for preventing and treating iris soft rot.
Preferably, when bactericidal composition is wettable powder, each component including following weight percent: jervine 8
~15%, Zhongshengmycin 5~10%, graphene oxide 0.1~0.7%, dispersing agent 1~10%, wetting agent 1~10%, filler 1
~25%.Jervine, Zhongshengmycin, graphene oxide and dispersing agent, wetting agent and filler are mixed by above-mentioned weight proportion,
Uniform stirring in a stirring kettle remixes uniformly after being smashed by air jet mill, obtains wettable powder bactericidal composition.
Preferably, when bactericidal composition is suspending agent, each component including following weight percent: jervine 12~
15%, Zhongshengmycin 8~12%, graphene oxide 0.1~0.7%, dispersing agent 5~10%, antifreezing agent 1~5%, thickener
0.1~1%, defoaming agent 0.1~0.8%, excess water.The specific production stage of the suspending agent are as follows: first match auxiliary agent by above-mentioned
Than mixing, be uniformly mixed through high speed shear, add jervine, Zhongshengmycin and graphene oxide, in ball crusher abrading-ball 2~
3 hours, it is below 5mm a diameter, obtains the bactericidal composition of aqueous suspension formulations.
Preferably, when bactericidal composition is water dispersible granules, each component including following weight percent: jervine 8
~12%, Zhongshengmycin 5~9%, graphene oxide 0.1~0.7%, dispersing agent 5~10%, wetting agent 4~10%, disintegrating agent
1~5%, filler 1~25%.The specific production stage of the aqueous emulsion are as follows: by jervine, Zhongshengmycin, graphene oxide, dispersion
Agent, wetting agent, disintegrating agent and filler are uniformly mixed, and are crushed with micro jet, through mediating, fluidized bed are then added and makes
It is granulated in grain drying machine, dries, sieves, obtain the bactericidal composition of water dispersant.
Preferably, the dispersing agent is aliphatic amine polyoxyethylene ether, polyoxyethylene carboxylate, fatty acid glyceride gather
At least one of ethylene oxide ether, poloxamer.
Preferably, the wetting agent is lauryl sodium sulfate, in calcium dodecyl benzene sulfonate, alkylnaphthalene sulfonate
It is at least one.
Preferably, the filler is at least one of talcum powder, kaolin, diatomite, bentonite.
Preferably, the antifreezing agent is at least one of ethylene glycol, propylene glycol, glycerine, polyethylene glycol；Described
Thickener be xanthan gum, hydroxymethyl cellulose, hydroxyethyl cellulose, methylcellulose, aluminum magnesium silicate, in polyvinyl alcohol at least
It is a kind of；The defoaming agent is at least one of sodium citrate, resorcinol.
Preferably, the disintegrating agent is at least one of urea, ammonium sulfate, aluminium chloride, citric acid, sodium bicarbonate.
Compared with prior art, the invention has the following advantages:
For the present invention by the way that graphene oxide and jervine, Zhongshengmycin to be used in compounding, three belongs to different role mechanism
Fungicide, mutual mixture will not generate conflict；There is good synergistic function in a certain range, preventive effect is higher than single
Agent, drug effect is more longlasting, substantially increases germicidal efficiency, has good control effect to iris soft rot；Pathogen will not be made to produce
Raw drug resistance, expands fungicidal spectrum, reduces dosage and cost, can be used for the prevention and treatment of agricultural production crop disease.
Specific embodiment
The present invention is made combined with specific embodiments below and further being elaborated, the embodiment is served only for explaining this
Invention, is not intended to limit the scope of the present invention.Test method as used in the following examples is normal unless otherwise specified
Rule method；Used material, reagent etc., unless otherwise specified, for the reagent and material commercially obtained.
The incidence that whole strain blade is investigated according to test grade scale, calculates disease index and control efficiency.According to grandson
Yun Peifa (" Simple Calculation and its application of co-toxicity coefficient ", Huang are attained clearly, 1993) calculates the total poison system of toxicity index grade of medicament
Number (CTC).CTC≤80, composition show as antagonism；80 < CTC < 120, composition show as summation action；CTC≥
120, composition shows as synergistic effect.
1 20% jervine Zhongshengmycin graphene oxide wettable powder of embodiment
By 10% jervine, 9.5% Zhongshengmycin, 0.5% graphene oxide, 9.3% poloxamer, 6% dodecyl
Sodium sulphate and the mixing of 20% diatomite, uniform stirring, remixes uniformly after being smashed by air jet mill, is made in a stirring kettle
20% jervine Zhongshengmycin graphene oxide wettable powder.
2 20% jervine Zhongshengmycin graphene oxide wettable powder of embodiment
By 12% jervine, 7.4% Zhongshengmycin, 0.6% graphene oxide, 8% aliphatic amine polyoxyethylene ether, 8.5%
Calcium dodecyl benzene sulfonate, 17% diatomite, the mixing of 6% bentonite, uniform stirring, crushes through airslide disintegrating mill in a stirring kettle
After remix uniformly, be made 20% jervine Zhongshengmycin graphene oxide wettable powder.
3 25% jervine Zhongshengmycin graphene oxide suspending agent of embodiment
By 5% polyoxyethylene carboxylate, 3% propylene glycol, 0.3% methylcellulose, 0.4% sodium citrate and 64.3%
Water mixing, after being uniformly mixed through high speed shear, adds 14% jervine, 10.7% Zhongshengmycin and 0.3% graphene oxide,
Abrading-ball 2~3 hours in ball crusher, are below 5mm a diameter, and 25% jervine Zhongshengmycin graphite oxide is made
Alkene suspending agent.
4 25% jervine Zhongshengmycin graphene oxide suspending agent of embodiment
10% poloxamer, 2% glycerine, 1.0% xanthan gum, 0.5% sodium citrate and 61.5% water are mixed, through height
After fast shear-mixed is uniform, 13% jervine, 11.6% Zhongshengmycin and 0.4% graphene oxide are added, in ball crusher
Abrading-ball 2~3 hours, it is below 5mm a diameter, 25% jervine Zhongshengmycin graphene oxide suspending agent is made.
5 20% jervine Zhongshengmycin graphene oxide water dispersible granules of embodiment
By 11% jervine, 8.3% Zhongshengmycin, 0.7% graphene oxide, 7.8% aliphatic amine polyoxyethylene ether, 4%
Lauryl sodium sulfate, 5% calcium dodecyl benzene sulfonate, 2.5% sodium bicarbonate, 20% kaolin are uniformly mixed, with ultra micro gas
It flows pulverizer to crush, through mediating, sampling analysis after being granulated, drying, sieve, system is then added in fluidized-bed granulation dryer
Obtain 20% jervine Zhongshengmycin graphene oxide water dispersible granules.
6 20% jervine Zhongshengmycin graphene oxide water dispersible granules of embodiment
By 10.5% jervine, 9% Zhongshengmycin, 0.5% graphene oxide, 9% glycerol fatty acid ester polyoxyethylene ethe,
6% calcium dodecyl benzene sulfonate, 4.5% ammonium sulfate, 22% diatomite are uniformly mixed, and are crushed with micro jet, through pinching
It closes, sampling analysis after being granulated, drying, sieve then is added in fluidized-bed granulation dryer, is made in 20% jervine
Raw rhzomorph graphene oxide water dispersible granules.
Bacteriostatic activity of the 7 Examples 1 to 6 bactericidal composition of embodiment to iris Bacteria erwinia
Using micro-dilution method measurement Examples 1 to 6 bactericidal composition to the bacteriostatic activity of iris Bacteria erwinia.Step is such as
Under:
It will be accessed in Mueller-Hinton broth bouillon for examination bacterium, in 35 DEG C of culture 48h, until turning after slight haziness
Enter in 0.9% physiological saline, adjusts that (measuring method is to make it under 650nm wavelength using spectrophotometer to Maxwell turbidity 0.5
Absorbance be 0.020), then with Mueller-Hinton broth bouillon dilute 200 times it is spare.The bacterium solution diluted is connected to 96
In orifice plate, every 100 μ L of hole liquid volume added, then it is separately added into Examples 1 to 6 bactericidal composition, using streptomycin sulphate as positive control,
Not connect the processing of bacterium as negative control with bacteria culture fluid and dosing (Examples 1 to 6 bactericidal composition).96 holes that will be handled well
Plate is placed in 35 DEG C of incubators and cultivates 20h, and light transmittance is measured under 650nm wavelength, records Examples 1 to 6 bactericidal composition pair
Inhibition for trying bacterium grows minimum concentration (MIC), and being greater than 85% with light transmittance is the standard for inhibiting growth, the results are shown in Table 1.
Minimum inhibitory concentration (MIC) measurement result of 1 Examples 1 to 6 bactericidal composition of table to iris Bacteria erwinia
| Processing | Minimum inhibitory concentration MIC (μ g/mL) |
| Embodiment 1 | 30 |
| Embodiment 2 | 34 |
| Embodiment 3 | 42 |
| Embodiment 4 | 45 |
| Embodiment 5 | 38 |
| Embodiment 6 | 31 |
| Streptomycin sulphate | 96 |
The result shows that 1~6 bactericidal composition of the embodiment of the present invention is apparently higher than sulphur to the bacteriostatic activity of iris Bacteria erwinia
Sour streptomysin.
The toxicity test of 8 jervine of embodiment, Zhongshengmycin and graphene oxide to iris Bacteria erwinia
Jervine, Zhongshengmycin and graphene oxide compounding test iris Bacteria erwinia toxicity test, specific proportion and
It the results are shown in Table 2~3.
2 jervine of table, Zhongshengmycin, graphene oxide single dose are to iris Bacteria erwinia survey toxicity index
| Processing | LD50(μg/mL) | TI |
| Jervine | 0.88 | 100 |
| Zhongshengmycin | 2.10 | 41.90 |
| Graphene oxide | 20.95 | 4.20 |
3 jervine of table, Zhongshengmycin and graphene oxide different proportion compounding are to iris Bacteria erwinia toxicity test result
Analysis
The result shows that jervine, Zhongshengmycin and graphene oxide significantly improve the control efficiency of iris soft rot, three
Person's compound proportion has significant synergistic effect to iris Bacteria erwinia within the scope of the present invention, and co-toxicity coefficient 150 or more, increases
Effect effect is obvious；And three's compound proportion is not within the scope of the present invention, to iris Bacteria erwinia can only achieve summation action, altogether
Malicious coefficient is lower than 120.
9 field efficacy confirmatory experiment of embodiment
Test method: spraying, 3 cells of each processing, each cell 20m are carried out once at the initial stage of a disease2.Before medicine and
10 days investigation statistics incidences after medicine, 5 grab sample of each cell, the lesion area for investigating every blade in whole strain account for blade
The percentage of area calculates disease index and control efficiency.Every group of pharmaceutical quantities sprayed are with active constituent content in composition
It is mutually all foundation.
Field experiment is carried out to iris soft rot using Examples 1 to 6 bactericidal composition, the results are shown in Table 4:
4 iris soft rot disease index of table and control efficiency
The result shows that jervine, Zhongshengmycin and graphene oxide compounding are significant to the control efficiency of iris soft rot.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than protects to the present invention
The limitation of shield range can also be made on the basis of above description and thinking for those of ordinary skill in the art
Other various forms of variations or variation, there is no necessity and possibility to exhaust all the enbodiments.It is all of the invention
Made any modifications, equivalent replacements, and improvements etc., should be included in the protection of the claims in the present invention within spirit and principle
Within the scope of.
Claims (9)
1. a kind of bactericidal composition of prevention and control iris soft rot, which is characterized in that each component including following weight percent: Chenopodiaceae
Reed alkali 6~15%, Zhongshengmycin 5~12%, graphene oxide 0.1~0.7%, surplus auxiliary agent；The dosage form of the bactericidal composition is
Any one of wettable powder, suspending agent or water dispersible granules.
2. bactericidal composition according to claim 1, which is characterized in that when bactericidal composition is wettable powder, packet
Include each component of following weight percent: jervine 8~15%, Zhongshengmycin 5~10%, graphene oxide 0.1~0.7%, dispersion
Agent 1~10%, wetting agent 1~10%, filler 1~25%.
3. bactericidal composition according to claim 1, which is characterized in that when bactericidal composition is suspending agent, including with
The each component of lower weight percent: jervine 12~15%, Zhongshengmycin 8~12%, graphene oxide 0.1~0.7%, dispersing agent 5
~10%, antifreezing agent 1~5%, thickener 0.1~1%, defoaming agent 0.1~0.8%, excess water.
4. bactericidal composition according to claim 1, which is characterized in that when bactericidal composition is water dispersible granules, packet
Include each component of following weight percent: jervine 8~12%, Zhongshengmycin 5~9%, graphene oxide 0.1~0.7%, dispersion
Agent 5~10%, wetting agent 4~10%, disintegrating agent 1~5%, filler 1~25%.
5. according to the described in any item bactericidal compositions of claim 2~4, which is characterized in that the dispersing agent is fatty amine
At least one of polyoxyethylene ether, polyoxyethylene carboxylate, glycerol fatty acid ester polyoxyethylene ethe, poloxamer.
6. according to any bactericidal composition of claim 2 or 4, which is characterized in that the wetting agent is dodecyl
At least one of sodium sulphate, calcium dodecyl benzene sulfonate, alkylnaphthalene sulfonate.
7. according to any bactericidal composition of claim 2 or 4, which is characterized in that the filler is talcum powder, kaolinite
At least one of soil, diatomite, bentonite.
8. bactericidal composition according to claim 3, which is characterized in that the antifreezing agent is ethylene glycol, propylene glycol, third
At least one of triol, polyethylene glycol；The thickener is xanthan gum, hydroxymethyl cellulose, hydroxyethyl cellulose, methyl
At least one of cellulose, aluminum magnesium silicate, polyvinyl alcohol；The defoaming agent be sodium citrate, in resorcinol at least
It is a kind of.
9. bactericidal composition according to claim 4, which is characterized in that the disintegrating agent is urea, ammonium sulfate, chlorination
At least one of aluminium, citric acid, sodium bicarbonate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810511900.0A CN108935493A (en) | 2018-05-24 | 2018-05-24 | A kind of bactericidal composition of prevention and control iris soft rot |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810511900.0A CN108935493A (en) | 2018-05-24 | 2018-05-24 | A kind of bactericidal composition of prevention and control iris soft rot |
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| Publication Number | Publication Date |
|---|---|
| CN108935493A true CN108935493A (en) | 2018-12-07 |
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ID=64492143
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| Country | Link |
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2018
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