CN106472513B - A kind of Synergistic herbicide compositions comprising diflufenican and pyriftalid - Google Patents
A kind of Synergistic herbicide compositions comprising diflufenican and pyriftalid Download PDFInfo
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- CN106472513B CN106472513B CN201610829638.5A CN201610829638A CN106472513B CN 106472513 B CN106472513 B CN 106472513B CN 201610829638 A CN201610829638 A CN 201610829638A CN 106472513 B CN106472513 B CN 106472513B
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- Prior art keywords
- diflufenican
- pyriftalid
- composition
- effective component
- herbicidal combinations
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Classifications
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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
- A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
-
- 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
Abstract
The invention discloses a kind of Synergistic herbicide compositions comprising diflufenican and pyriftalid, the weight ratio of effective component diflufenican and pyriftalid can be 1:0.03~30 in the composition.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, tool
Saying for body is to be related to a kind of Synergistic herbicide compositions comprising diflufenican and pyriftalid.
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, absorbs the weeds plant of medicament
Middle carotenoid content decline, causes chlorophyll to be destroyed, and membranolysis, weeds then show as young shoot decoloration or white, most
Whole strain is wilted dead afterwards.
Active component pyriftalid (pyriftalid) is the pyrimidine salicylic acid weeding developed by Syngenta Co., Ltd, Switzerland
Agent, mechanism of action are the synthesis for inhibiting acetolactate synthestase (ALS), and medicament mainly passes through weeds root and stem foot absorbs.Ring
Ester grass ether is early stage broad-spectrum herbicide after rice seedlings, aims at transplanting and direct seading rice exploitation.Its mechanism of action is to inhibit acetyl cream
The synthesis of acid enzyme (ALS).For preventing and treating paddy field gramineae weed and part broadleaf weeds, in paddy field, pyriftalid
It is absorbed by paddy rice root tip, seldom a part can be transmitted on blade, and the grass cutting blade that small part medicament can be sprouted absorbs.
Through toxicity biologic test and field control effectiveness test, the results showed that annual gramineous weed, nutgrass flatsedge to transplanting rice field
Section part broadleaf weeds has preferable control efficiency.Dosage is 187.5~300g (effective component)/hm2, access times
It is 1 time.It is preferable to barnyard grass, the semen euphorbiae control efficiency in transplanting rice field, to false loosestrife, cyperus iria, needle spikesedge herb, mexicana,
The broadleaf weeds such as Monochoria vaginalis and nutgrass flatsedge have certain preventive effect.Recommended drug amount is to rice safety.
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 pyriftalid.
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 component diflufenican of Herbicidal combinations of the present invention and the weight ratio of pyriftalid are
1:0.03~30.
In another scheme, the effective component diflufenican of Herbicidal combinations of the present invention and the weight ratio of pyriftalid
For 1:0.05~20.
In another scheme, the effective component diflufenican of Herbicidal combinations of the present invention and the weight ratio of pyriftalid
For 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, these ratios
Example can be understood as weight ratio, also may include molar ratio.
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 5~90%, preferably 10~80% 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 growth place of plant, such as rice field can be soaked with the liquid preparation of composition, or by composition
It is applied in soil in solid form, such as in granular form (soil application), composition can be entered by soil through plant root
In plant (systemic action).
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, ox hair is especially prevented and treated
Felt, mexicana, firefly Lin, Herba panici repentics.
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 pyriftalid and various auxiliary agents and filler etc. is sufficiently mixed in proportion
It closes, wettable powder is made after ultra-fine pulverizer disintegrating.
Embodiment 1:21% diflufenican pyriftalid wettable powder
Diflufenican 20%, pyriftalid 1%, aliphatic alcohol sulfate 4%, bentonite 6%, naphthalene sulfonic acid potassium 8%, kaolinite
Soil complements to 100%.
Embodiment 2:33% diflufenican pyriftalid wettable powder
Diflufenican 3%, pyriftalid 30%, alkyl sulfate 8%, kaolin 6%, potassium lignosulfonate 4%, gently
Matter calcium carbonate complements to 100%.
Embodiment 3:62% diflufenican pyriftalid wettable powder
Diflufenican 2%, pyriftalid 60%, sodium sulfonate 5%, methyl naphthalene sulfonate formaldehyde condensate 4%, kaolin
5%, white carbon black complements to 100%.
(2) processing and embodiment of water dispersible granules
Active constituent diflufenican and pyriftalid, auxiliary agent and filler are mixed according to the formula uniformly, through air-flow
It is ground into wettable powder, adds a certain amount of water mixing extrusion granulation, water dispersible granules product is made after dry screening.
Embodiment 4:31% diflufenican Pyriftalid water dispersible granule
Diflufenican 30%, pyriftalid 1%, potassium lignosulfonate 6%, sodium alkyl sulfate 6%, dodecyl sulphate
Sodium 11%, ammonium sulfate 5%, kaolin complements to 100%.
Embodiment 5:50% diflufenican Pyriftalid water dispersible granule
Diflufenican 25%, pyriftalid 25%, fatty acid and sulphated fatty alcohol glycol ether 6%, lignin carbon
Sour potassium 6%, potassium dodecanesulfonate 4%, diatomite complements to 100%.
Embodiment 6:30% diflufenican Pyriftalid water dispersible granule
Diflufenican 25%, pyriftalid 5%, potassium lignosulfonate 7%, lauryl sodium sulfate 5%, ammonium sulfate
6%, precipitated calcium carbonate complements to 100%.
(3) processing and embodiment of aqueous emulsion
By each components such as active constituent diflufenican and pyriftalid, emulsifier, dispersing agent, organic solvent, antifreeze
It is mixed according to the formula and uniformly gets product.
Embodiment 7:11% diflufenican pyriftalid aqueous emulsion
Diflufenican 10%, pyriftalid 1%, ethoxylated castor oil 7%, methylcellulose 6%, sorbitol ester
6%, toluene 6%, glacial acetic acid 1%, water complements to 100%.
Embodiment 8:42% diflufenican pyriftalid aqueous emulsion
Diflufenican 2%, pyriftalid 40%, ethylene oxide condensation product 7%, ammonium sulfate 5%, dimethylbenzene 9%, urea
6%, glacial acetic acid 0.1%, water complements to 100%.
Embodiment 9:24% diflufenican pyriftalid aqueous emulsion
Diflufenican 4%, pyriftalid 20%, ethyl alcohol 8%, ethylene oxide condensation product 5%, ethoxylated castor oil
7%, ammonium sulfate 5%, glacial acetic acid 2%, 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 mexicana with pyriftalid
1 diflufenican of table is compounded with pyriftalid different ratio analyzes (one) to the toxicity test of mexicana
As a result (table 1) shows diflufenican and pyriftalid between proportion 1~30:1~30, and co-toxicity coefficient exists
130 or more, illustrate that diflufenican compounds preventing and kill off with significant synergistic function to mexicana with pyriftalid.Experiment
It was found that when the proportion of diflufenican and pyriftalid not within the scope of the invention when, the two to mexicana be difficult have association
Same synergistic effect.
2, diflufenican is compounded with pyriftalid tests (two) to the toxicity test of needle spikesedge herb
2 diflufenican of table compounds the toxicity test interpretation of result to needle spikesedge herb with pyriftalid
As a result (table 2) shows diflufenican and pyriftalid between proportion 1~30:1~30, and co-toxicity coefficient exists
130 or more, illustrate that diflufenican compounds preventing and kill off with significant synergistic function to needle spikesedge herb with pyriftalid.Experiment
It was found that when the proportion of diflufenican and pyriftalid not within the scope of the invention when, the two to needle spikesedge herb be difficult have association
Same synergistic effect.
(2) field control effectiveness test
1, the field control effect of diflufenican and pyriftalid 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 firefly Lin and Herba panici repentics with pyriftalid
Measurement result (table 3) shows that diflufenican is compounded with pyriftalid and prevents controlling weeds firefly Lin and Herba panici repentics
Effect significantly improves, and illustrates that the two compounding has significant synergistic function to firefly Lin and Herba panici repentics.
Claims (9)
1. a kind of Herbicidal combinations with synergistic effect, it is characterised in that contain effective component diflufenican in the composition
And pyriftalid；The weight ratio of the effective component diflufenican and pyriftalid is 1:0.03~30.
2. Herbicidal combinations according to claim 1, it is characterised in that the effective component diflufenican and cyclic ester grass
The weight ratio of ether is 1:0.05~20.
3. Herbicidal combinations according to claim 2, it is characterised in that the effective component diflufenican and cyclic ester grass
The weight ratio of ether is 1:0.1~10.
4. 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.
5. Herbicidal combinations according to claim 4, it is characterised in that the mass content of effective component is 5 in the composition
~90%.
6. Herbicidal combinations according to claim 5, it is characterised in that the mass content of effective component is in the composition
10~80%.
7. Herbicidal combinations according to claim 4, it is characterised in that the dosage form be wettable powder, suspending agent, can
Disperse oil-suspending agent, aqueous emulsion, missible oil, water dispersible granules.
8. purposes of the Herbicidal combinations described in claim 1 in agriculture field prevention and treatment crop weeds.
9. purposes according to claim 8, it is characterised in that the weeds are selected from needle spikesedge herb, mexicana, firefly Lin and os osseum
Grass.
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| CN201610829638.5A CN106472513B (en) | 2016-09-18 | 2016-09-18 | A kind of Synergistic herbicide compositions comprising diflufenican and pyriftalid |
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| CN201610829638.5A CN106472513B (en) | 2016-09-18 | 2016-09-18 | A kind of Synergistic herbicide compositions comprising diflufenican and pyriftalid |
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| CN108887273A (en) * | 2018-08-22 | 2018-11-27 | 青岛瀚生生物科技股份有限公司 | Agricultural field weeding composition and its application |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102150668A (en) * | 2010-12-07 | 2011-08-17 | 北京颖新泰康国际贸易有限公司 | Herbicide composition, preparation and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101473823A (en) * | 2008-12-18 | 2009-07-08 | 孙家隆 | Herbicidal composition containing pyribenzoxim and picolinafen |
| CN103518747A (en) * | 2013-09-12 | 2014-01-22 | 广东中迅农科股份有限公司 | Weeding composition containing penoxsulam and pyriftalid |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102150668A (en) * | 2010-12-07 | 2011-08-17 | 北京颖新泰康国际贸易有限公司 | Herbicide composition, preparation and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 环酯草醚 pyriftalid;无;《农药科学与管理》;20090708;第30卷(第4期);第58页 |
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