CN106259344B - Herbicidal combinations with synergistic effect - Google Patents
Herbicidal combinations with synergistic effect Download PDFInfo
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- CN106259344B CN106259344B CN201610640603.7A CN201610640603A CN106259344B CN 106259344 B CN106259344 B CN 106259344B CN 201610640603 A CN201610640603 A CN 201610640603A CN 106259344 B CN106259344 B CN 106259344B
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- fluroxypyr
- herbicidal combinations
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- diflufenican
- effective component
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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
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
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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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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a kind of Herbicidal combinations with synergistic effect, contain effective component diflufenican and fluroxypyr in the composition.The weight ratio of effective component diflufenican and fluroxypyr can be 1:0.03~30.Pharmacodynamic test shows that the composition has the characteristics that with strong complementarity, synergistic effect is obvious, degrass spectrum expands, amount of application is reduced, the optimum period for applying fertilizer extends, high, environmental pollution reduces, is by force etc. positive with environment compatibility to crop safety.
Description
Technical field
The invention belongs to agriculture plant protection fields, more particularly to a kind of with the Herbicidal combinations for improving performance.
Background technique
Active component diflufenican (diflufenican) medicine belongs to herxheimer-liked reaction inhibitor.Cause
Destruction of Chlorophyll and cell rupture, Plant death.Diflufenican is a kind of acetamide-group herbicides, is applied before and after weeds germination
The medicine soil layer of anti-leaching can be formed in native table, keep activity in crop entire growth period.When weed germination passes through medicine soil layer young shoot
Or root system can absorb medicament, diflufenican, which has, inhibits herxheimer-liked reaction effect, and the weeds for absorbing medicament are planted
Carotenoid content decline, causes chlorophyll to be destroyed in strain, membranolysis, and weeds then show as young shoot decoloration or white
Color, last whole strain are wilted dead.
Active component fluroxypyr (fluroxypyr) inner sucting conduction type herbicide after seedling.It is inhaled quickly by plant after medicine
It receives, sensitive plant is made the reaction of classical hormones class herbicide, plant malformation and distortion occur.In drug resistance plant such as wheat body,
Fluorine grass is combined into conjugates surely and loses toxicity, to have selectivity.Temperature on the final effect of its weeding without influence, but shadow
Ring the speed that its drug effect plays.Generally drug effect performance is slower when the temperature is low, stops growing after can making dunsiekte, but not immediately
It is dead；Plant is dead quickly after temperature increases.Leaching is not significant in the soil, is largely distributed in 0-10 centimetres of topsoil,
Under conditions of aerobic, be degraded into the non-poisonous materials such as 2- pyridine alcohol quickly in the effect of edaphon, in the soil half-life period compared with
It is short, lower stubble broad leaf crop will not be had an impact.Suitable for wheat, barley, corn, grape, orchard, pasture, forest land, lawn etc.
Prevent and kill off broadleaf weeds in ground；Such as clearvers, volume stem smartweed, purslane, black nightshade, field bindweed, knotweed, amaranth, it is invalid to gramineae weed.
Actual pesticide experience have shown that, repeat and single-minded apply a kind of reactive compound and carry out controlling weeds in many feelings
It will lead to the fast selective of weeds under condition, prevent and treat injurious weed usually using the mixture of different activities compound at present.
By will have the reactive compound of different role mechanism to be combined, can delaying drug resistance generate, reduce amount of application, reduce prevention and treatment
Cost.
Summary of the invention
The purpose of the present invention is being directed to herbicide resistance and pedo relict problem in practical applications, filter out containing two
The herbicide of the different weeding principles of kind is compounded, and to improve herbicide prevention effect, delaying drug resistance is generated, and reduces amount of application,
Reduce control cost.
It is a further object of the present invention to provide a kind of above-mentioned composition agriculture field controlling weeds application.
The purpose of the present invention can be achieved by the following measures:
The present invention provides a kind of Herbicidal combinations with synergistic effect, contain effective constituents A and B in the composition,
Effective constituents A is diflufenican, and effective component B is fluroxypyr or derivatives thereof.
In the present invention, fluroxypyr derivative includes fluroxypyr ester type compound or fluroxypyr salt
Class compound, different monooctyl ester of the suitable preferred fluroxypyr of ester derivative etc., the suitable preferred chlorine fluorine pyrrole of salt derivative
Fluoroacetic acid sylvite, sodium salt etc..
Inventor is found by experiment that above-mentioned Herbicidal combinations synergy is obvious, it is often more important that amount of application is reduced, and reduction makes
Use cost.Different from the compound structure type of component B containing component A, mechanism of action is different, and the two compounding can expand weeding
Spectrum, and generation and the development speed of Weed Resistance can be delayed to a certain extent, and no interactions between component A and component B
Resistance.
The effective component of the present composition can only include A and B, can also be in the base for not influencing composition overall performance
On plinth, other effective components are further included.
In a kind of scheme, the effective constituents A of Herbicidal combinations of the present invention and the weight ratio of B are 1:0.03~30.
In another scheme, the effective constituents A of Herbicidal combinations of the present invention and the weight ratio of B are 1:0.05~20.
In another scheme, the effective component effective constituents A of Herbicidal combinations of the present invention and the weight ratio of B are 1:0.1
~10.
In a preferred solution, the weight ratio between two component of A and B can be arbitrarily in the range of following proportions
Be adjusted: 1:0.03,1:0.04,1:0.05,1:0.06,1:0.07,1:0.08,1:0.09,1:0.1,1:0.2,1:0.3,
1:0.4,1:0.5,1:0.6,1:0.7,1:0.8,1:0.9,1:1,1:2,1:3,1:4,1:5,1:6,1:7,1:8,1:9,1:10,
1:11,1:12,1:13,1:14,1:15,1:16,1:17,1:18,1:19,1:20,1:21,1:22,1:23,1:24,1:25,1:
26,1:27,1:28,1:29,1:30 can also be matched at any of the above two and be selected in composed range.
Dosage form pesticide-acceptable can be made by effective component and insecticides adjuvant in composition of the invention jointly.
The mass content of effective component can be 2~95%, preferably 5~80% in composition of the invention.
It may include carrier, auxiliary agent and/or surfactant in the present composition.It can be mixed during application
Common auxiliary agent.
Suitable auxiliary agent can be solid or liquid, they are usually common substance during formulation, such as day
Right or regenerated minerals, solvent, dispersing agent, wetting agent, adhesive, thickener, adhesive or fertilizer.
The method of administration of the present composition includes the aerial part that composition of the invention is used for plant growth, especially
It is leaf portion or blade face.The frequency and amount of application of application depend on the biology and weather life condition of pathogen.It can be by plant
Growth place, such as rice field is soaked with the liquid preparation of composition, or composition is applied in soil in solid form,
As in granular form (soil application), composition can enter in plant (systemic action) through plant root by soil.
These compositions can only include that active constituent (also known as effective component) is administered, can also with additive or
Auxiliary agent mixes together, therefore composition of the invention can be prepared into various dosage forms, for example, wettable powder, suspending agent,
Dispersible oil-suspending agent, aqueous emulsion, missible oil, water dispersible granules etc..According to the property of these compositions and application composition institute
Purpose to be achieved and ambient conditions can choose composition to be sprayed, atomizing, dust, broadcast sowing or sprinkle the side poured or the like
Method application.
Composition of the invention can be prepared into various dosage forms by known method, such as can by effective component with help
Agent can uniformly mix together with surfactant when needing, grind, be prepared into required agent such as solvent, solid carrier
Type.
Above-mentioned solvent can be selected from aromatic hydrocarbon, preferably contain 8-12 carbon atom, such as xylene mixture or substituted benzene, phthalein
Esters of gallic acid, such as two octanoic acid of Dibutyl phthalate or phthalandione, fat hydrocarbon, such as thiacyclohexane or paraffin, the ether of pure and mild ethylene glycol and they
And ester, such as ethyl alcohol, ethylene glycol, ethylene glycol monomethyl；Ketone, such as cyclohexanone, highly polar solvent, such as N- methyl -2- pyrrolidines
Ketone, dimethyl sulfoxide or dimethylformamide and vegetable oil or vegetable oil, such as soybean oil.
Above-mentioned solid carrier, such as usually natural mineral fillers, such as talcum, kaolinite for pulvis and dispersible agent
Soil, montmorillonite or atlapulgite.In order to manage the physical property of composition, polymolecularity silicic acid or polymolecularity can also be added
Adsorpting polymerization object carrier, such as granulated adsorptive carriers or non-adsorbed carrier, suitable granulated adsorptive carriers are porous types, it is such as floating
Stone, bentonite or bentonite；Suitable non-adsorbed carrier such as calcite or sand.Further, it is possible to use a large amount of inorganic in nature or having
The prefabricated material to granulate of machine property is as carrier, especially dolomite.
The chemical property of effective component in composition according to the present invention, suitable surfactant are sulfomethylated lignin
Acid, naphthalene sulfonic acids, phenolsulfonic acid, alkali salt or amine salt, alkylaryl sulfonates, alkyl sulfate, alkylsulfonate, fat
Alcohol sulfate, fatty acid and sulphated fatty alcohol glycol ether, there are also the condensation product of sulfonated naphthalene and naphthalene derivatives and formaldehyde, naphthalene or
The condensation product of naphthalene sulfonic acids and phenol and formaldehyde, NONIN HS 240, ethoxylated isooctyl-phenol, octyl phenol, nonyl phenol,
Alkylaryl polyglycol ether, tributyl benzene polyglycol ether, three stearyl phenyl polyglycol ethers, alkyl aryl polyether alcohol,
Ethoxylated castor oil, polyoxyethylene alkyl ether, ethylene oxide condensation product, ethoxylation polyoxypropylene, laurel acid polyethylene glycol
Ether acetal, sorbitol ester, lignin sulfite waste liquor and methylcellulose.
Two kinds of effective components show as synergistic effect in composition of the invention, and the activity of the composition is than using individualized
The independent activity of the expected summation of activity and single compound of closing object is more significant.Synergistic effect shows as allowing amount of application
Reduce, broader weeding control spectrum, quick, more longlasting control efficiency, by only once or a small number of application several times more preferably
Control weeds and broaden the possible administration interval time.These characteristics are to prevent and kill off in control weeds practice process especially
It needs.
In terms of Herbicidal combinations of the invention can be applicable to agriculture field prevention and treatment crop weeds, ma is broadcast in especially prevention and treatment
Wormwood artemisia, clearvers, Amaranthus retroflexus or ox chickweed.
The other features of Herbicidal combinations of the invention shown are mainly shown as: 1, due to two lists of this composition
Agent chemical structure is widely different, and the mechanism of action is entirely different, and cross resistance is not present, and two single dose exclusive uses can be delayed to be produced
Raw resistance problem；2, composition of the invention is good to crop safety, preventive effect.Tests prove that herbicidal composition of the present invention
Chemical property is stablized, and synergy is significant, shows apparent synergy and complementation to controlling object.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to limit
The fixed present invention, any modifications, equivalent replacements and improvementsmade within the spirit and principles of the invention, etc. should be included in
Within protection scope of the present invention.
Percentage is weight percentage in all formulas of following embodiment.The processing work of the various preparations of the present composition
Skill is the prior art, can be varied according to different situations.
One, dosage form prepares embodiment
(1) processing and embodiment of wettable powder
Active constituent diflufenican and active constituent fluroxypyr and various auxiliary agents and filler etc. are filled in proportion
Divide mixing, wettable powder is made after ultra-fine pulverizer disintegrating.
Embodiment 1:21% diflufenican fluroxypyr sylvite wettable powder
Diflufenican 20%, fluroxypyr sylvite 1%, kaolin 8%, sodium lignin sulfonate 6%, naphthalene sulfonic acid potassium
5%, white carbon black complements to 100%.
Embodiment 2:5.5% diflufenican fluroxypyr wettable powder
Diflufenican 0.5%, fluroxypyr 5%, bentonite 4%, aliphatic alcohol sulfate 6%, methyl naphthalene sulfonic acid
Sodium formaldehyde condensation product 6%, precipitated calcium carbonate complements to 100%.
Embodiment 3:10.3% diflufenican fluroxypyr wettable powder
Diflufenican 0.3%, fluroxypyr 10%, calcite 3%, methyl naphthalene sulfonate formaldehyde condensate 5%,
Octyl phenol 6%, kaolin complements to 100%.
(2) processing and embodiment of missible oil
By each components such as active constituent diflufenican and fluroxypyr, emulsifier, organic solvent by the ratio of formula
Example is uniformly mixed and gets product.
The different monooctyl ester missible oil of embodiment 4:11% diflufenican fluroxypyr
Diflufenican 10%, the different monooctyl ester 1% of fluroxypyr, alkylaryl polyglycol ether 6%, toluene complements to
100%.
The different monooctyl ester missible oil of embodiment 5:31.5% diflufenican fluroxypyr
Diflufenican 1.5%, the different monooctyl ester 30% of fluroxypyr, sorbitol ester 15%, toluene complements to 100%.
Embodiment 6:24% diflufenican fluroxypyr missible oil
Diflufenican 8%, fluroxypyr 16%, methyl naphthalene sulfonate formaldehyde condensate 10%, toluene complements to
100%.
(3) processing and embodiment of aqueous emulsion
Active constituent diflufenican and fluroxypyr, emulsifier, dispersing agent, organic solvent, antifreeze etc. is each
Component, which is mixed according to the formula, uniformly to get product.
Embodiment 7:30% diflufenican fluroxypyr aqueous emulsion
Diflufenican 20%, fluroxypyr 10%, alkyl aryl polyether alcohol 5%, polyoxyethylene alkyl ether 5%,
Ammonium sulfate 5%, ethyl alcohol 8%, glacial acetic acid 0.1%, water complements to 100%.
Embodiment 8:15.5% diflufenican fluroxypyr aqueous emulsion
Diflufenican 15%, fluroxypyr 0.5%, lauric acid polyglycol ether acetal 5% are polyxyethylated
Ether 6%, urea 6%, toluene 10%, glacial acetic acid 0.5%, water complements to 100%.
Embodiment 9:20% diflufenican fluroxypyr aqueous emulsion
Diflufenican 10%, fluroxypyr 10%, ethylene oxide condensation product 6%, the contracting of methyl naphthalene sulfonic acid sodium formaldehyde
Object 5% is closed, dimethylbenzene 10%, ammonium sulfate 5%, glacial acetic acid 0.1%, water complements to 100%.
Two, drug effect verification test
(1) Assays Example
Using diflufenican as standard agent, disease index and control efficiency are calculated.Control efficiency is converted into probability
It is worth (y), liquor strength (μ g/ml) is converted into logarithm (x), calculates concentration in virulence equation and inhibition with least square method
EC50 calculates the toxicity index grade co-toxicity coefficient (CTC) of medicament according to Sun Yunpei's Method.Toxicity test the results are shown in Table 1.
Survey toxicity index (ATI)=(standard agent EC50/ reagent agent EC50) * 100
Percentage composition+B medicament toxicity index * the mixture of A in theoretical toxicity index (TTI)=A medicament toxicity index * mixture
The percentage composition of middle B
Co-toxicity coefficient (CTC)=[mixture surveys toxicity index (ATI)/mixtures theoretical toxicity index (TTI)] * 100
CTC≤80, composition show as antagonism, 80 < CTC < 120, and composition shows as summation action, and CTC >=
120, composition shows as synergistic effect.
1, diflufenican compounds the toxicity test test to ox chickweed with fluroxypyr
1 diflufenican of table is compounded with fluroxypyr different ratio analyzes (one) to the toxicity test of ox chickweed
As a result (table 1) shows that diflufenican and fluroxypyr are matching between 1~30:1~30, co-toxicity coefficient
122 or more, illustrate that diflufenican compounds preventing and kill off with significant synergistic to ox chickweed with fluroxypyr
Effect.Experiment discovery, when the proportion of diflufenican and fluroxypyr not within the scope of the invention when, the two is numerous to ox
Thread is difficult with synergistic function.
2, diflufenican is compounded with fluroxypyr tests (two) to the toxicity test of Amaranthus retroflexus
2 diflufenican of table compounds the toxicity test interpretation of result to Amaranthus retroflexus with fluroxypyr
As a result (table 2) shows that diflufenican and fluroxypyr are matching between 1~30:1~30, co-toxicity coefficient
126 or more, illustrate that diflufenican compounds preventing and kill off with significant synergistic to Amaranthus retroflexus with fluroxypyr
Effect.Experiment discovery, when the proportion of diflufenican and fluroxypyr not within the scope of the invention when, the two is to anti-branch
Amaranth is difficult with synergistic function.
(2) field control effectiveness test
1, the field control effect of diflufenican and fluroxypyr is verified using embodiment produced by the present invention.
It is expected that preventive effect (%)=X+Y-XY/100 (wherein, X, Y are single dose preventive effect)
3. diflufenican of table compounds the field efficiency test result to Descurainia sophia and clearvers with fluroxypyr
Measurement result (table 3) shows that diflufenican is compounded with fluroxypyr to controlling weeds Descurainia sophia and pig calamity
The preventive effect of calamity significantly improves, and illustrates that the two compounding has significant synergistic function to miscellaneous Descurainia sophia and clearvers.
Claims (7)
1. a kind of Herbicidal combinations with synergistic effect, it is characterised in that the composition contains effective constituents A and B, wherein having
Effect ingredient A is diflufenican, and effective component B is fluroxypyr or derivatives thereof；The weight of the effective constituents A and B
Than for 1:0.03~30；
The derivative of the fluroxypyr is fluroxypyr ester type compound or fluroxypyr salt class compound；
The fluroxypyr ester type compound is the different monooctyl ester of fluroxypyr, the fluroxypyr salt class
Conjunction object is fluroxypyr sylvite.
2. Herbicidal combinations according to claim 1, it is characterised in that the effective constituents A and the weight ratio of B are 1:
0.05~20.
3. Herbicidal combinations according to claim 1, it is characterised in that the composition is total to by effective component and insecticides adjuvant
It is same that dosage form pesticide-acceptable is made.
4. Herbicidal combinations according to claim 3, it is characterised in that the mass content of effective component is 2 in the composition
~95%.
5. Herbicidal combinations according to claim 3, it is characterised in that the dosage form is wettable powder, aqueous emulsion or cream
Oil.
6. use of the Herbicidal combinations described in any one of Claims 1 to 5 in terms of agriculture field prevents and treats crop weeds
On the way.
7. purposes according to claim 6, it is characterised in that the weeds are selected from Descurainia sophia, clearvers, Amaranthus retroflexus or ox
Herba stellariae mediae.
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| CN106259344B true CN106259344B (en) | 2019-06-21 |
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| CN106305744A (en) * | 2016-10-10 | 2017-01-11 | 佛山市盈辉作物科学有限公司 | Picolinafen/fluroxypyr-mepthyl weedicide composition |
| CN107396932A (en) * | 2017-08-31 | 2017-11-28 | 江苏辉丰农化股份有限公司 | A kind of Han You metamifops and the Herbicidal combinations of the chlorine of 2 first 4 |
| CN112438265A (en) * | 2019-08-27 | 2021-03-05 | 青岛清原化合物有限公司 | Weeding composition containing R-type pyridyloxycarboxylic acid derivative and application thereof |
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| CN104106588A (en) * | 2014-03-29 | 2014-10-22 | 山东先达农化股份有限公司 | Wheat field herbicide composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104106588A (en) * | 2014-03-29 | 2014-10-22 | 山东先达农化股份有限公司 | Wheat field herbicide composition |
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