CN104012549B - A kind of containing pyraclonil with the Herbicidal combinations of bispyribac-sodium - Google Patents
A kind of containing pyraclonil with the Herbicidal combinations of bispyribac-sodium Download PDFInfo
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- CN104012549B CN104012549B CN201410191636.9A CN201410191636A CN104012549B CN 104012549 B CN104012549 B CN 104012549B CN 201410191636 A CN201410191636 A CN 201410191636A CN 104012549 B CN104012549 B CN 104012549B
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- sodium
- bispyribac
- pyraclonil
- herbicidal combinations
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Abstract
The present invention relates to a kind of containing pyraclonil with the Herbicidal combinations of bispyribac-sodium, its effective ingredient is pyraclonil and bispyribac-sodium, the weight ratio of pyraclonil and bispyribac-sodium be 10:1～1:10, pyraclonil and bispyribac-sodium gross weight percentage composition in the composition be 1～85%.This Herbicidal combinations has synergistic function, significantly improve herbicidal effect compared with being used alone with single dose, expand weed control spectrum, reduce Pesticide use amount simultaneously, alleviate the pollution to environment, delayed the generation of herbicide resistance, be mainly used in rice terrace preventing and treating annual grassy weeds.
Description
Technical field
The present invention relates to pesticide Herbicidal combinations and application thereof, specifically a kind of with pyraclonil and
Bispyribac-sodium is the Herbicidal combinations of effective ingredient binary built, is applied to the preventing and treating of rice terrace annual grassy weeds.
Background technology
Pyraclonil (pyraclonil): belong to diazole type herbicides, the mechanism of action is protoporphyrinogen oxygen
Change the inhibitor of enzyme.Can be used for rice field prevent and kill off annual gramineous weed, sedge weed and broad leaved weed and
Some perennial weeds.
Bispyribac-sodium (bispyribac-sodium): belong to pyrimidinylthiobenzoate herbicides, the mechanism of action is second
Acyl lactic acid synthetase inhibitors, can quickly be absorbed by the stem and leaf of weeds after dispenser, and conducts to whole plant,
Suppression plant separate living tissue growth, thus kill weeds.Be applicable to rice field and prevent and kill off barnyard grass, dried tuber, double control big
Most broad leaved weeds.
By the screening of different pesticide species compounded formulas, filter out rational formula, can be effectively improved disease
The actual prevention effect of Cordyceps evil, expanding prevention is composed, and reduces dosage, reduces cost, alleviates environment
Pollute, delay the drug-fast generation of disease pest and weed, be the important means of agriculturally disease pest and weed comprehensive control.
The compounding use of pyraclonil and bispyribac-sodium is conducted in-depth research by the present inventor, in substantial amounts of indoor
On the basis of recipe determination and field medicine effect test, find that pyraclonil and bispyribac-sodium compound, necessarily
Compound proportion in the range of rice terrace annual grassy weeds shown obvious synergistic function, through further
Research, completes the present invention.
The most not yet find the relevant report that pyraclonil is compounding with bispyribac-sodium.
Summary of the invention
It is an object of the invention to provide one have synergistic function, expand weed control spectrum, use cost low,
The Herbicidal composition for rice field that effective ingredient is pyraclonil and bispyribac-sodium that prevention effect is good.
Technical scheme: a kind of containing pyraclonil with the Herbicidal combinations of bispyribac-sodium, effective ingredient is polybenzobisoxazole grass
The weight ratio of nitrile and bispyribac-sodium, pyraclonil and bispyribac-sodium is 10:1～1:10, preferred weight ratio be 4:1～
1:6, pyraclonil and bispyribac-sodium gross weight percentage composition in the composition is 1～85%, and remaining is in pesticide
Allow to use and acceptable auxiliary element.
Herbicidal combinations of the present invention can select suitable pesticide system according to well known to a person skilled in the art method
Agent auxiliary element, can be processed into oil-suspending agent, aqueous suspension agent, wettable powder and water dispersible granules etc. suitable
Close the application forms used in agricultural production.
In Herbicidal combinations of the present invention use auxiliary element include solvent, emulsifying agent, wetting agent, disintegrating agent,
Stabilizer, dispersant, thickening agent, penetrating agent, pH adjusting agent, defoamer, antifreezing agent, carrier etc. are useful
The stable in the formulation and known substance of performance drug effect in effective ingredient is all conventional in pesticidal preparations or allows
The various compositions used, concrete composition and consumption are determined by test according to recipe requirements.
Frequency of administration and the amount of application of the present composition have little with crops, insect, weather condition change
Amount change, can reach, by using suitable dosage, the purpose effectively prevented and treated.
Compared with prior art, it is an advantage of the current invention that:
1, pyraclonil and bispyribac-sodium compounding have synergistic function, are used alone than single dose and significantly improve
Prevention effect to weeds, expands weed control spectrum.
2, pyraclonil and two kinds of effective ingredient of bispyribac-sodium compound, and the mechanism of action is different, can delay weeds
Drug-fast generation.
3, pyraclonil and two kinds of effective ingredient of bispyribac-sodium compound, and decrease Pesticide use amount, reduce use
Cost, alleviate the pollution to environment.
Detailed description of the invention
In order to be more fully understood that the essence of the present invention, below in conjunction with embodiment, present disclosure is made further
Illustrate, but limitation of the present invention can not be considered as.
(1) Formulation Example.
In following examples, effective ingredient uses the 96% former medicine of pyraclonil and the former medicine of 95% bispyribac-sodium, each component
Percentage composition is weight percentage.
Embodiment 1:60% pyraclonil bispyribac-sodium water dispersible granules.
Pyraclonil 20%, bispyribac-sodium 40%, sodium lauryl sulphate 5%, alkyl benzene sulfonate calcium salt 8%, sulfur
Acid ammonium 2%, Kaolin supplies 100%.By above-mentioned effective ingredient, dispersant, wetting agent, disintegrating agent and solid
Carrier mix homogeneously, pulverizes with micro jet, through mediating, is subsequently adding fluidized-bed granulation dryer
In carry out pelletize, be dried, screening, can be prepared by 60% pyraclonil bispyribac-sodium water dispersible granules.
Embodiment 2:80% pyraclonil bispyribac-sodium wettable powder.
Pyraclonil 40%, bispyribac-sodium 40%, sodium alkyl sulfonate 5%, alkylphenol polyoxyethylene 5%, diatom
Soil supplies 100%.By above-mentioned, effective ingredient, dispersant, wetting agent and solid carrier are mixed, mechanical activation comminution
After again through comminution by gas stream, mix homogeneously, can be prepared by 80% pyraclonil bispyribac-sodium wettable powder.
Embodiment 3:20% pyraclonil bispyribac-sodium oil-suspending agent.
Pyraclonil 5%, bispyribac-sodium 15%, fatty acid ester sulfate 10%, dodecylbenzene sodium sulfonate 10%,
Aluminium-magnesium silicate 2%, methyl oleate supplies 100%.Above-mentioned effective ingredient and auxiliary agent are disperseed through high speed shear, sand
In grinding machine after sand milling, the high dispersive formed in non-water-medium, stable suspension system, can be prepared by 20%
Pyraclonil bispyribac-sodium oil-suspending agent.
Embodiment 4:30% pyraclonil bispyribac-sodium aqueous suspension agent.
Pyraclonil 20%, bispyribac-sodium 10%, polycarboxylate 5%, alkylphenol polyoxyethylene 5%, carbamide 2%,
Hydroxymethyl cellulose 1%, silicone oil 0.5%, deionized water supplies 100%.By above-mentioned effective ingredient and auxiliary agent through height
Speed shears sand milling in dispersion, sand mill, the high dispersive formed in water-medium, stable suspension system,
Can be prepared by 30% flucarbazone pyraflufen-ethyl aqueous suspension agent.
(2) indoor biological determination of activity embodiment.
Reagent agent: the 96% former medicine of pyraclonil and the former medicine of 95% bispyribac-sodium.
For examination target: Herba monochoriae vaginalis (Monochoria vaginalis), barnyard grass (Echinochloa
Crusgalli), Herba Cyperi Difformis (Cyperus difformis).
Medicament configuration design: pyraclonil single dose is configured to 3,9,16g a.i./ha solution for standby；Double grass
Ether single dose is configured to 4,11,18g a.i./ha solution for standby；Pyraclonil and bispyribac-sodium mixture be configured to 3+4,
3+11,3+18,9+4,9+11,9+18,16+4,16+11,16+18g a.i./ha solution for standby.
Test method: the built-in quantitative soil of polypots at high 6cm, diameter 9cm, will be for examination target weed seed
15～20 sowings, in polypots, are placed on temperature indoor cultivation after the thick fine earth of lid 0.5～1cm, treat weeds length
Stem and leaf spraying treatment is carried out to 1～2 leaf phases, every alms bowl spraying liquid 1mL, often process and be repeated 4 times, and set and do not contain
The process of medicament is comparison.Try material after process and be placed in temperature indoor cultivation, the growth feelings of routine observation target weeds
Condition, estimates target damage symptoms and growth inhibited situation, and claims aerial parts fresh weight, with target fresh weight after 20d
Suppression ratio evaluates the medicament toxicity action to target weeds.
Investigation method: target damage symptoms and growth inhibited situation are estimated in test after processing 20d, and claim on the ground
Part fresh weight, calculates fresh weight inhibition (%).
Synergy evaluation methodology: evaluate herbicide associated form (NY/T according to Gowing method
1155.7-2006), its formula is as follows:
E0X Y XY/100.
In formula, X is pyraclonil with certain dosage fresh weight inhibition to target weeds time alone；Y is that bispyribac-sodium is with certain
Fresh weight inhibition to target weeds when dosage is alone；E0For when pyraclonil, two kinds of pharmacy mix of bispyribac-sodium pair
The theoretical value of target weeds fresh weight inhibition；E is miscellaneous to target when being pyraclonil, two kinds of pharmacy mix of bispyribac-sodium
The measured value of grass fresh weight inhibition.
Evaluation criterion: as E E0During ＞ 10%, it is expressed as potentiation；As 10%≤E E0When≤10%,
Show as summation action；As E E0During ＜ 10%, show as antagonism.
By the Toxicity Determination result of table 1, table 2 and table 3 it can be seen that pyraclonil and bispyribac-sodium mixture
Respectively process the E-E to Herba monochoriae vaginalis, barnyard grass and Herba Cyperi Difformis0(%) value is all higher than 10%, illustrates that three compounds right
Herba monochoriae vaginalis, barnyard grass and Herba Cyperi Difformis are respectively provided with synergistic function.As can be seen here, pyraclonil and bispyribac-sodium
Mixture has reasonability and feasibility.
Table 1, each chemicals treatment Toxicity Determination to Herba monochoriae vaginalis.
Table 2, each chemicals treatment Toxicity Determination to barnyard grass.
Table 3, each chemicals treatment Toxicity Determination to Herba Cyperi Difformis.
(3) field efficacy checking embodiment.
Herba monochoriae vaginalis, barnyard grass and Herba Cyperi Difformis is experimental field selected to occur more rice terrace to carry out.Test sets 4 altogether
Individual process, often processes and sets 3 repetition, process 1 be 20% pyraclonil bispyribac-sodium oil-suspending agent (5:15),
Process 2 be 10% pyraclonil wettable powder, process 3 be 100 grams per liter bispyribac-sodium suspending agents, process 4
For comparison (not dispenser not weeding), within after medicine 30 days, add up each process number of weeds amount and calculate preventive effect.
Table 4, each chemicals treatment prevent and kill off the field control effectiveness test result of transplanted rice field annual grassy weeds.
By the field test results of table 4 it can be seen that after medicine 30 days 20% pyraclonil bispyribac-sodium oil suspend
To rice terrace barnyard grass, Herba monochoriae vaginalis and Herba Cyperi Difformis when agent (5:15) usage amount is 20-25g.a.i./ha
Preventive effect is all substantially higher and is used alone in each single dose, does not finds 20% polybenzobisoxazole grass during test survey simultaneously
Nitrile bispyribac-sodium oil-suspending agent (5:15) produces poisoning to Oryza sativa L..As can be seen here, said composition is worth in agriculture
Industry produces upper popularization and application.
Claims (4)
1. one kind contains pyraclonil and the Herbicidal combinations of bispyribac-sodium, it is characterised in that: effective ingredient is pyraclonil and bispyribac-sodium, and pyraclonil and bispyribac-sodium weight ratio are 10:1～1:10, pyraclonil and bispyribac-sodium gross weight percentage composition in the composition is 1～85%, and remaining is pesticide auxiliary element.
It is the most according to claim 1 a kind of containing pyraclonil with the Herbicidal combinations of bispyribac-sodium, it is characterised in that: the weight ratio of pyraclonil and bispyribac-sodium is 4:1～1:6。
It is the most according to claim 1 a kind of containing pyraclonil with the Herbicidal combinations of bispyribac-sodium, it is characterised in that: the dosage form of described Herbicidal combinations is the one in oil-suspending agent, aqueous suspension agent, wettable powder and water dispersible granules.
4. a kind of Herbicidal combinations containing pyraclonil and bispyribac-sodium described in claim 1 is used for preventing and kill off rice terrace annual grassy weeds.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410191636.9A CN104012549B (en) | 2014-05-07 | 2014-05-07 | A kind of containing pyraclonil with the Herbicidal combinations of bispyribac-sodium |
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| CN201410191636.9A CN104012549B (en) | 2014-05-07 | 2014-05-07 | A kind of containing pyraclonil with the Herbicidal combinations of bispyribac-sodium |
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| CN104012549A CN104012549A (en) | 2014-09-03 |
| CN104012549B true CN104012549B (en) | 2016-08-17 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1201370A (en) * | 1995-11-15 | 1998-12-09 | 赫彻斯特-舍林农业发展有限公司 | Synergetic herbicidal mixture |
| CN102283214A (en) * | 2011-06-24 | 2011-12-21 | 陕西韦尔奇作物保护有限公司 | Weeding composition containing bispyribac-sodium |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4393620B2 (en) * | 1999-04-28 | 2010-01-06 | 協友アグリ株式会社 | Synergistic herbicide |
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2014
- 2014-05-07 CN CN201410191636.9A patent/CN104012549B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1201370A (en) * | 1995-11-15 | 1998-12-09 | 赫彻斯特-舍林农业发展有限公司 | Synergetic herbicidal mixture |
| CN102283214A (en) * | 2011-06-24 | 2011-12-21 | 陕西韦尔奇作物保护有限公司 | Weeding composition containing bispyribac-sodium |
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