CN108967432A - A kind of composition pesticide containing benzothiostrobin and bromuconazole - Google Patents
A kind of composition pesticide containing benzothiostrobin and bromuconazole Download PDFInfo
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- CN108967432A CN108967432A CN201811098562.9A CN201811098562A CN108967432A CN 108967432 A CN108967432 A CN 108967432A CN 201811098562 A CN201811098562 A CN 201811098562A CN 108967432 A CN108967432 A CN 108967432A
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- bromuconazole
- benzothiostrobin
- composition
- composition pesticide
- pesticide containing
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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
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/647—Triazoles; Hydrogenated triazoles
- A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
-
- 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
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/74—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,3
- A01N43/78—1,3-Thiazoles; Hydrogenated 1,3-thiazoles
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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)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a kind of composition pesticide containing benzothiostrobin and bromuconazole, it is characterized in that, the active constituent of the composition pesticide includes benzothiostrobin and bromuconazole, the benzothiostrobin and the weight ratio of bromuconazole are 1:30~30:1, wherein, it is 5%~50% that benzothiostrobin and bromuconazole, which account for the weight percentage of composition,.Field times for spraying and dosage can be greatly decreased in composition pesticide of the invention, and then saves pesticide and generate cost, effectively reduce environmental pollution and pesticide residue.
Description
Technical field
The invention belongs to technical field of pesticide, are related to a kind of bactericidal composition, relate particularly to containing benzothiostrobin and chaff
The bactericidal composition of bacterium azoles.
Background technique
Benzothiostrobin (benzothiostrobin) is a kind of novel methoxy acrylate of Central China Normal University's research and development
Class fungicide has many advantages, such as that wide sterilization spectrum, bactericidal activity are high, amount of application is low, the lasting period is long, has both treatment and protection is made
With maize ear rot and vegetables and melon and fruit class are white with can be widely used for prevention and treatment sclerotinia sclerotiorum, rice green smut, corn southern leaf blight, citrus
The various crops fungal diseases such as powder disease, downy mildew, gray mold, brown spot, scab, but long-term be used alone easily produces disease
Raw drug resistance.
Bromuconazole (bromuconazole), belong to triazole type microbial inoculum, can effectively prevent cereal crop, grape, fruit tree and
Ascomycetes, Basidiomycetes and Fungi Imperfecti pathogen on vegetables.In addition, also having to Alternaria and Fusarium pathogen
Effect.
Downy mildew of garpe and uncinula necator encroach on grape, cause vintage to reduce, quality decline, mainly adopt in production
With both diseases of chemical pesticide control, benzimidazole, triazole type, methoxy acrylic bactericide are relied primarily at present
Powdery mildew is prevented and treated, three second aluminum phosphates, metalaxyl, cymoxanil, Propamocarb, dimethomorph etc. prevent and treat downy mildew.However, being used for a long time
The fungicide of single kind can make disease generate different degrees of resistance, and control efficiency reduces, and environmental pollution can also be got worse.
Summary of the invention
The present invention propose regarding to the issue above it is a kind of it is synergistic obvious, to environment low toxicity, to the pesticide of crop safety
Composition.
Another object of the present invention is to provide the composition pesticides for preventing and treating Ascomycetes, Basidiomycetes and partly knowing
Mushroom pathogen, such as uncinula necator, downy mildew of garpe, pear scab, apple peels and cores, early blight of tomato, Huang
Melon gray mold, rice green smut, rice sheath blight disease etc..
To achieve the above object, the technical scheme adopted by the invention is that:
A kind of composition pesticide containing benzothiostrobin and bromuconazole, active constituent includes benzothiostrobin and bromuconazole, wherein
Benzothiostrobin and the weight ratio of bromuconazole are 1:30~30:1.
Further, the benzothiostrobin and the weight ratio of bromuconazole are 1:15~15:1.
Further, the benzothiostrobin and the weight ratio of bromuconazole are 1:5~5:1.
The content of active constituent depends on amount of application when being used alone in composition of the invention, also depends on a kind ofization
The mixed ratio and synergistic effect degree of object and another compound are closed, while also related with target disease.Of the invention one
Composition pesticide of the kind containing benzothiostrobin and bromuconazole, the weight percentage that the benzothiostrobin accounts for composition with bromuconazole are
5%~50%, further preferably 10%~30%.
Bactericidal composition of the invention can used before through dilution or directly by user, and preparation can be by ability
Conventional processing methods well known to field technique personnel are prepared into agriculturally any one acceptable dosage form, and preferably have can for dosage form
Wet powder, suspending agent, aqueous emulsion, microemulsion, water dispersible granules, dispersible oil-suspending agent, microcapsule suspending agent.
In bactericidal composition of the invention at least contain a kind of surfactant, in favor of application when active component in water
Dispersion.Surface-active contents are the 1%~30% of total formulation weight, and surplus is carrier or liquid diluent.
Further, the surfactant is known in those skilled in the art, including but not limited to solvent, dispersion
Agent, wetting agent, defoaming agent, binder, emulsifier, preservative, thickener, antifreeze, stabilizer, synergist.
Composition of the invention can be according to the methods of casting, injection, spraying, dusting, distribution application, and amount of application is with weather
Condition and subject determine.
Product described in the invention can be provided in the form of finished product preparation, i.e., each substance has mixed in composition, combination
The ingredient of object can also be provided with unit dose form, be used in mixed way according to needs.
Bactericidal composition of the invention can also be applied with other active ingredient combinations, such as expanding activity profile or preventing
Only form resistance.Other active constituents such as fungicide, attractant, insecticide, acaricide, kills line at bactericide
Worm agent, growth regulator, herbicide, safener, fertilizer or semiochemical etc..
Compared with prior art, composition pesticide of the invention has the beneficial effect that
(1) composition pesticide provided by the invention is compounded by benzothiostrobin with bromuconazole or mixed composition, with list
Agent is compared, bactericidal activity enhancing, synergistic obvious；
(2) field times for spraying and dosage, Jin Erjie can be greatly decreased compared with single dose in composition pesticide of the present invention
It saves pesticide and generates cost, effectively reduce environmental pollution and pesticide residue；
(3) mechanism of action of benzothiostrobin and bromuconazole is different, while expanding prevention spectrum, reduces to cause of disease
The single selection pressure of bacterium is conducive to overcome and delay the speed of pathogen resistance generation.
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 toxicity test
1. benzothiostrobin is with bromuconazole combination preparation to the indoor toxicity test of downy mildew of garpe
Subjects: Plasmopara viticola
Test method: having configured reagent agent, and 5 concentration gradients are arranged in each medicament and are handled, to spray equivalent clear water
For blank control, 3 repetitions of each processing, each processing 5mL.The blade of Hilly area of Jiangsu Province's field natural occurrence is picked up from, is used
The sporangium of aseptic water washing leaf surface, being made into concentration is 1.0 × 105The sporangia suspension of a/mL, it is consistent to be seeded in growing way
4~6 blade grape seedlings leaf dishes on, 20 leaf dishes of each processing are repeated 4 times, be placed in incubator 25 DEG C, humidity 80%,
After cultivating 7d under the conditions of illumination 12h/d, incidence is recorded in investigation, and concentration EC in inhibiting is calculated with least square method50, then use grandson
Yun Peifa calculates co-toxicity coefficient (CTC), test result such as table 1.
1 benzothiostrobin of table is with bromuconazole combination preparation to the indoor toxicity test of downy mildew of garpe
It is right from the indoor biological activity assay of table 1 it is found that when benzothiostrobin and the weight ratio of bromuconazole are 1:40 and 40:1
The co-toxicity coefficient of downy mildew of garpe is less than 120, and to the co-toxicity coefficient CTC value of downy mildew of garpe in the range of 1:30~30:1
120 or more, show that the two has synergistic function in underrange, when the two proportion is 3:2, co-toxicity coefficient is
209.04 synergistic more significant.
2. benzothiostrobin is with bromuconazole combination preparation to the indoor toxicity test of uncinula necator
Subjects: grape powdery mildew
Test method: using pot-culture method, and 5 various concentration gradients are arranged (in preliminary experiment in single dose and each Mixed Pharmacy
On the basis of, bacteriostasis rate is set in the range of 5%~90% by geometric progression).If clear water processing is blank control, each place
Reason is repeated 4 times.Medical fluid is uniformly sprayed on blade face, it is spare after medical fluid natural air drying.It is natural with spore suspension spray inoculation
It air-dries, then moves to thermostatic chamber, under conditions of temperature is 20~24 DEG C, cultivate 7d~10d.Reach to blank control disease leaf rate
When 80% or more, incidence is managed in classification investigation everywhere, and 30 leaves, grade scale are at least investigated in every processing are as follows:
0 grade: disease-free；
1 grade: lesion area accounts for 5% or less entire leaf area；
3 grades: lesion area accounts for the 5%~15% of entire leaf area；
5 grades: lesion area accounts for the 15%~25% of entire leaf area；
7 grades: lesion area accounts for the 25%~50% of entire leaf area；
9 grades: lesion area accounts for the 50%~75% of entire leaf area；
11 grades: lesion area accounts for 75% or more of entire leaf area；
According to survey data, the disease index and control efficiency of each processing are calculated.Pass through preventive effect probability value and series of concentrations
Logarithm between linear regression analysis, find out the EC of each medicament50Value.The co-toxicity coefficient of mixture is calculated with Sun Yunpei's Method
(CTC), reagent agent is evaluated to the activity of germ with this.The co-toxicity coefficient (CTC) >=120 of compound preparation shows as synergy work
With；CTC≤80 show as antagonism；80 < CTC < 120 show as summation action, test result such as table 2.
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
2 benzothiostrobin of table is with bromuconazole combination preparation to the indoor toxicity test of uncinula necator
The results are shown in Table 2 for indoor biological activity assay, the EC of benzothiostrobin and bromuconazole to uncinula necator50Respectively
1.46 and 1.30, it is clear that bromuconazole is higher than benzothiostrobin to the virulence of uncinula necator, and the two weight ratio is 1:30~30:1's
Range shows synergistic function to uncinula necator, and co-toxicity coefficient is 120 or more, wherein the weight ratio of the two
When for 2:5, co-toxicity coefficient 209.69 is synergistic more significant.
Two, example of formulations
Embodiment 1:15% benzothiostrobin bromuconazole suspending agent (2:1)
The suspending agent the preparation method comprises the following steps: above-mentioned material is mixed in proportion, wait each components to be mixed according to the formula
Uniformly, semi-finished product are obtained after sand milling or high speed shear, water supplement, which is uniformly mixed, after analysis filters up to 15% benzothiostrobin
Bromuconazole suspending agent.
Embodiment 2:30% benzothiostrobin bromuconazole water dispersible granules (3:2)
The water dispersible granules the preparation method comprises the following steps: material is obtained required grain through air-flow crushing together by above-mentioned formula
Diameter adds binder, obtains granulation materials.Item is quantified and is sent into fluidized bed granulating dryer by granulation and drying
Afterwards, 30% benzothiostrobin bromuconazole water dispersible granules be can be prepared by.
Embodiment 3:42% benzothiostrobin bromuconazole wettable powder (4:3)
The wettable powder the preparation method comprises the following steps: pesticide activity component, auxiliary agent, filler mixed warp in proportion by formula
It is remixed after air-flow crushing, can be prepared by 42% benzothiostrobin bromuconazole wettable powder.
Embodiment 4:35% benzothiostrobin bromuconazole wettable powder (2:5)
The wettable powder the preparation method comprises the following steps: above-mentioned material is sufficiently mixed in the ratio of formula, through ultra-fine grinding
To get 35% benzothiostrobin bromuconazole wettable powder after machine crushing.
Oil-suspending agent (8:3) can be dispersed in embodiment 5:22% benzothiostrobin bromuconazole
The dispersible oil-suspending agent the preparation method comprises the following steps: above-mentioned raw materials through mixing, high speed shear disperse 30min, use sand
Grinding machine can be prepared by 22% benzothiostrobin bromuconazole after being sanded can be dispersed oil-suspending agent.
Embodiment 6:48% benzothiostrobin bromuconazole suspending agent (1:4)
The suspending agent the preparation method comprises the following steps: auxiliary element is mixed by above-mentioned formula, be uniformly mixed through high speed shear, add
Enter benzothiostrobin and bromuconazole continues shear-mixed, is then added in horizontal sand mill and grinds, make preparation partial size all at 5 microns
Hereinafter, can be prepared by 48% benzothiostrobin bromuconazole suspending agent.
Three, field trial
1. benzothiostrobin is with bromuconazole combination preparation to the field control effectiveness test of wheat powdery mildew
Subjects: downy mildew of garpe
Reagent agent: treatment agent be embodiment 1-3 combination preparation, comparison medicament be 25% benzothiostrobin suspending agent and
20% bromuconazole suspending agent, clear water are blank control.
Test method: twice, equivalent clear water is sprayed in check plot for application altogether for test, has a small amount of grape leave to fall ill but supply in field
First time application is carried out when applying plant without incidence of leaf, is carried out second after 10d and is administered.It is spraying with WF-16 type back carried hand
Device uniformly sprays, and each plot area is 30m2, each processing is repeated 3 times, and cell spouting liquid is by 600 kg/ha of applications.
Investigation method: before the application, 7d, 14d are investigated after second of application, and 10 current year pumpings of each cell random searching are new
It is climing, whole blades are investigated from top to bottom.Grade scale is investigated according to related data, records each cell state of an illness by following stage division
Index,
Downy mildew of garpe grade scale:
0 grade: disease-free spot；
1 grade: lesion area accounts for 5% or less entire leaf area；
3 grades: lesion area accounts for the 6%~25% of entire leaf area；
5 grades: lesion area accounts for the 26%~50% of entire leaf area；
7 grades: lesion area accounts for the 51%~755 of entire leaf area；
9 grades: lesion area accounts for 76% or more of entire leaf area；
7d carries out first time investigation after medicine, and 14d carries out second of investigation after medicine, calculates disease index and control efficiency, with
Control disease, which refers to, to be compared, and calculates relative control effect, test result is shown in Table 3, and calculation formula is as follows:
3 benzothiostrobin of table is with bromuconazole combination preparation to the field control effectiveness test of downy mildew of garpe
Field trial shows that the combination preparation of benzothiostrobin and bromuconazole can effectively prevent downy mildew of garpe, with single work
Property compare, preventive effect significantly improves, and when the effective ingredient consumption of composite preparation is 60 grams/ha, second is administered 7d, preventive effect
86% or more is reached, the lasting period extends compared to single dose, and 14d after second of application, preventive effect reaches 88%, it is clear that effective component is used
Dose reduces, and preventive effect improves, and has saved drug cost, remarkable in economical benefits effectively reduces environmental pollution and pesticide residue, has
Large scale application prospect.
2. benzothiostrobin is with bromuconazole combination preparation to the field control effectiveness test test process of uncinula necator:
Subjects: uncinula necator
Test medicine: treatment agent be embodiment 1-3 combination preparation, comparison medicament be 20% benzothiostrobin suspending agent and
20% bromuconazole suspending agent, clear water are blank control.
Test method: test is located at the somewhere vineyard of Guilin, experimental field sets 24 cells, the cultivation of all cells
It is consistent.Test medicine, comparison medicament and the processing of the cell of blank control use random alignment.Each processing is repeated 4 times.It adopts
With MADEB-16 hand-powered knapsack sprayer (16L), regular constant spray is moistened completely as standard with blade face blade back, is administered 1 altogether
It is secondary.The disease index of each processing is first investigated in the previous day of spray, every cell singling investigates 5 plants, investigates total leaf in the 7th and 14d
The sick numbers of sheets several and at different levels, count disease index, calculating control efficiency test result see the table below 4.
4 benzothiostrobin of table is with bromuconazole combination preparation to the field control effectiveness test of uncinula necator
As can be seen from Table 4, the prevention and treatment of uncinula necator is shown preferably to hold after benzothiostrobin is compounded with bromuconazole
Effect property, at 40 grams/ha, the preventive effect of the uncinula necator of 14d exists the effective component usage amount of composition after application
89% or more, hence it is evident that higher than the comparison medicament of single active constituent.In addition, reagent agent is to crop safety, nothing during test
Phytotoxicity occurs, and does not observe and generates adverse effect to other beneficial organisms, shows that bactericidal composition of the invention is worth producing
Upper popularization and application.
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 composition pesticide containing benzothiostrobin and bromuconazole, which is characterized in that the active constituent of the composition pesticide
Including benzothiostrobin and bromuconazole, the weight ratio of the benzothiostrobin and bromuconazole is 1:30~30:1.
2. a kind of composition pesticide containing benzothiostrobin and bromuconazole according to claim 1, it is characterised in that: the benzene
The weight ratio of thiophene bacterium ester and bromuconazole is 1:15~15:1.
3. a kind of composition pesticide containing benzothiostrobin and bromuconazole according to claim 1, it is characterised in that: the benzene
The weight ratio of thiophene bacterium ester and bromuconazole is 1:5~5:1.
4. a kind of composition pesticide containing benzothiostrobin and bromuconazole according to claim 1, it is characterised in that: the benzene
The weight percentage that thiophene bacterium ester and bromuconazole account for composition is 5%~50%.
5. a kind of composition pesticide containing benzothiostrobin and bromuconazole according to claim 1, it is characterised in that: the benzene
The weight percentage that thiophene bacterium ester and bromuconazole account for composition is 10%~30%.
6. a kind of composition pesticide containing benzothiostrobin and bromuconazole according to claim 1, it is characterised in that: the agriculture
Drug composition is prepared into agriculturally any one acceptable dosage form.
7. a kind of composition pesticide containing benzothiostrobin and bromuconazole according to claim 6, it is characterised in that: described dose
Type includes wettable powder, suspending agent, aqueous emulsion, microemulsion, water dispersible granules, dispersible oil-suspending agent, microcapsule suspending agent.
8. a kind of composition pesticide containing benzothiostrobin and bromuconazole according to claim 1, it is characterised in that: the agriculture
Drug composition at least contains a kind of surfactant.
9. composition pesticide described in any one of -8 claims is used to prevent and treat the purposes of corps diseases according to claim 1.
10. purposes according to claim 9, it is characterised in that: the corps diseases are that downy mildew of garpe and grape are white
Powder disease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811098562.9A CN108967432A (en) | 2018-09-20 | 2018-09-20 | A kind of composition pesticide containing benzothiostrobin and bromuconazole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811098562.9A CN108967432A (en) | 2018-09-20 | 2018-09-20 | A kind of composition pesticide containing benzothiostrobin and bromuconazole |
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| CN108967432A true CN108967432A (en) | 2018-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811098562.9A Withdrawn CN108967432A (en) | 2018-09-20 | 2018-09-20 | A kind of composition pesticide containing benzothiostrobin and bromuconazole |
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| Country | Link |
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| CN (1) | CN108967432A (en) |
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2018
- 2018-09-20 CN CN201811098562.9A patent/CN108967432A/en not_active Withdrawn
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Application publication date: 20181211 |