CN105519533A - Herbicidal composition comprising clodinafop-propargyl and picolinafen, and application thereof - Google Patents
Herbicidal composition comprising clodinafop-propargyl and picolinafen, and application thereof Download PDFInfo
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- CN105519533A CN105519533A CN201410510887.9A CN201410510887A CN105519533A CN 105519533 A CN105519533 A CN 105519533A CN 201410510887 A CN201410510887 A CN 201410510887A CN 105519533 A CN105519533 A CN 105519533A
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- propargyl
- clodinafop
- fluorine metazachlor
- herbicidal combinations
- metazachlor
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Abstract
The invention discloses an herbicidal composition comprising clodinafop-propargyl and picolinafen, and an application thereof. According to the herbicidal composition, clodinafop-propargyl and picolinafen are main effective components with a mass ratio of 1-99:1-99. The total mass percentage content of the two in the herbicidal composition is 10-80%. The herbicidal composition provided by the invention can be used in wheat field postemergence weed control, and especially has a significant effect in controlling wheat field grassy weeds and broadleaf weeds. Compared to single agents, with the herbicidal composition, the efficacy is improved, weed resistance is retarded, the herbicidal spectrum is wide, and effect duration is long. The herbicidal composition is safe to wheat and next crops.
Description
Technical field
The invention belongs to technical field of pesticide, especially weed killer herbicide field, be specifically related to the binary built Herbicidal combinations of a kind of clodinafop-propargyl and fluorine metazachlor, this Herbicidal combinations can be applicable to wheat paddock postemergence weed control.
Background technology
Clodinafop-propargyl, has another name called top, chemical name: R-2-[4-(the chloro-3-of 5-fluoro-2-oxygen yl pyridines)-phenoxy group]-propiolic acid, belongs to phenoxy carboxylic acid herbicides, structural formula:
Clodinafop-propargyl is acetyl-CoA carboxylase (ACCase) inhibitor, Uptake and translocation weed killer herbicide, by blade and the leaf sheath absorption of plant corpus, phloem conducts, and accumulates and obtains in meristematic tissue in plant corpus, suppresses acetyl-CoA carboxylase, fatty acid is synthesized stop, the growth division of cell can not normally be carried out, and membranous system etc., containing fat structural deterioration, finally cause Plant death.Be absorbed into weeds Mortality Ratio from clodinafop-propargyl comparatively slow, generally need 1-3 week.
Fluorine metazachlor, chemical name: 4 '-fluoro-6-(between α, α, α-trifluoro methylphenoxy) pyridine-2-anilide, belongs to picolinamide class weed killer herbicide, structural formula:
Fluorine metazachlor is carotin synthetic inhibitor.In processed plant, carotenoid content declines, and then causes chlorophyll to be destroyed, membranolysis, and weeds show as young shoot decolouring or white, finally cause death.
Current wheat field herbicide limit by crop safety, herbicide spectrum is also limited, be used alone the generation that a kind of weed killer herbicide single dose can not control weeds of wheat completely effectively, moreover some weed killer herbicide is due to water-soluble large or the field lasting period is oversize, consumption is excessive or the uneven residual hazard all easily caused this season crop or succession crop of dispenser.Therefore, the present invention selects herbicide to compose different, be made into mixture after the clodinafop-propargyl of pluses and minuses complementation and fluorine metazachlor two kinds of suitable decrements of weed killer herbicide to use, so both expand herbicide spectrum, significantly improve herbicidal effect, it also avoid and poisoning and the possibility to succession crop generation residual hazard are produced to this season crop.
Summary of the invention
The object of this invention is to provide a kind of Herbicidal combinations containing clodinafop-propargyl and fluorine metazachlor.
Another object of the present invention is to provide the application of this Herbicidal combinations in wheat paddock weeding.
Containing a compound weeding composition for clodinafop-propargyl and fluorine metazachlor, this Herbicidal combinations is with clodinafop-propargyl and fluorine metazachlor for principle active component, and wherein, the weight ratio of clodinafop-propargyl and fluorine metazachlor is 1 ~ 99:1 ~ 99; Preferably in this Herbicidal combinations, the weight ratio of clodinafop-propargyl and fluorine metazachlor is 3 ~ 60:1 ~ 60; In this Herbicidal combinations preferred, the weight ratio of clodinafop-propargyl and fluorine metazachlor is 1 ~ 60:1 ~ 10 further; Most preferably in this Herbicidal combinations, the weight ratio of clodinafop-propargyl and fluorine metazachlor is 29 ~ 60:1 ~ 5.
The compound weeding composition containing clodinafop-propargyl and fluorine metazachlor described in technical solution of the present invention, both clodinafop-propargyl and the fluorine metazachlor mass percentage in Herbicidal combinations is 1 ~ 80%; Both preferred clodinafop-propargyl and the fluorine metazachlor mass percentage in Herbicidal combinations is 30 ~ 65%.
In the binary built composition of clodinafop-propargyl of the present invention and fluorine metazachlor, except the active ingredients such as clodinafop-propargyl and fluorine metazachlor, the auxiliary agents such as conventional surfactants, thickener, solvent or the solid packing that pesticidal preparations allows can also be added and be mixed with any one formulation that agricultural chemicals allows.Preferably be processed in missible oil, suspending agent, aqueous emulsion, microemulsion, water dispersion granule and wetting powder any one.
Aforementionedly can be applicable to the not special restriction of weeding auxiliary agent of the present invention, include, but are not limited to alkylphenol polyoxyethylene, phenethyl phenol polyethenoxy ether, aluminium-magnesium silicate, dimethylbenzene, methyl naphthalene sulfonate formaldehyde condensate, polyoxyethylene nonylphenol ether, aluminium-magnesium silicate, ethylene glycol, tributyl phosphate, silicone oil, sodium metnylene bis-naphthalene sulfonate, ammonium sulfate, polyvinyl alcohol, kaolin, solvent naphtha and water etc.
Herbicidal combinations of the present invention can be applied in wheat paddock postemergence weed control, particularly has remarkable result preventing and kill off in wheat paddock application in grass family and broad leaved weed.
Herbicidal combinations of the present invention has the following advantages:
1, activity of weeding is high.Herbicidal combinations of the present invention can kill weeds by two kinds of different mechanism, makes Weed Resistance produce speed and reduces, greatly improve the removing activity of weed killer herbicide.
2, herbicidal spectrum is wide, and the lasting period is long.Fluorine metazachlor has good preventive effect to broad leaved weed in wheat paddock, and clodinafop-propargyl can prevent and treat most of grassy weed.After both mixing, the control to multiple broad leaved weed and grassy weed can be improved.
3, safety is high.Because its using dosage is under control, make medicament under the prerequisite that improve drug effect, it have also been obtained raising to the safety of wheat and succession crop.
Herbicidal combinations of the present invention, is applied to wheat paddock postemergence weed control, and it can prevent and kill off various broad leaved weed and grassy weed in wheat paddock, under the prerequisite that improve drug effect, all has safety to wheat and succession crop.
Therefore, Herbicidal combinations of the present invention can be applied in the weed killer herbicide for the preparation of wheat paddock postemergence weed control, particularly applies in for the preparation of the weed killer herbicide preventing and kill off grassy weed and broad leaved weed in wheat paddock.
Embodiment
Below in conjunction with embodiment, the invention will be further described, but protection scope of the present invention is not limited thereto:
Embodiment 1
Take clodinafop-propargyl 34g, fluorine metazachlor 1g, alkylphenol polyoxyethylene 4g, phenethyl phenol polyethenoxy ether 15g, dimethylbenzene is to 100g, and formulation method is conveniently mixed with the missible oil that mass percentage is 35%.
Embodiment 2
Take clodinafop-propargyl 29g, fluorine metazachlor 1g, methyl naphthalene sulfonate formaldehyde condensate 6g, polyoxyethylene nonylphenol ether 3g, aluminium-magnesium silicate 0.5g, ethylene glycol 7g, tributyl phosphate 2g, silicone oil 0.2g, surplus is water, and formulation method is conveniently mixed with the suspending agent that mass percentage is 30%.
Embodiment 3
Take clodinafop-propargyl 59g, fluorine metazachlor 1g, NNO (methylene two bitter edible plant sodium sulfonate) 5g, ammonium sulfate 3g, polyvinyl alcohol 2g, kaolin is to 100g, and formulation method is conveniently mixed with the water dispersion granule that mass percentage is 60%.
Embodiment 4
Take clodinafop-propargyl 60g, fluorine metazachlor 5g, NNO (methylene two bitter edible plant sodium sulfonate) 6g, sodium lignin sulfonate 4g, kaolin is to 100g, and formulation method is conveniently mixed with the wetting powder that mass percentage is 65%.
Embodiment 5
Take clodinafop-propargyl 3g, fluorine metazachlor 12g, methyl naphthalene sulfonate formaldehyde condensate 6g, polyoxyethylene nonylphenol ether 3g, aluminium-magnesium silicate 0.5g, ethylene glycol 7g, tributyl phosphate 2g, solvent naphtha 20g, water is to 100g, and formulation method is conveniently mixed with the aqueous emulsion that mass percentage is 15%.
Embodiment 6
Take clodinafop-propargyl 5g, fluorine metazachlor 9g, methyl naphthalene sulfonate formaldehyde condensate 6g, polyoxyethylene nonylphenol ether 3g, aluminium-magnesium silicate 0.5g, ethylene glycol 7g, tributyl phosphate 2g, water is to 100g, and formulation method is conveniently mixed with the microemulsion that mass percentage is 14%.
Embodiment 7
Take clodinafop-propargyl 10g, fluorine metazachlor 50g, NNO (methylene two bitter edible plant sodium sulfonate) 6g, sodium lignin sulfonate 4g, kaolin is to 100g, and formulation method is conveniently mixed with the wetting powder that mass percentage is 60%.
Embodiment 8
Take clodinafop-propargyl 20g, fluorine metazachlor 31g, methyl naphthalene sulfonate formaldehyde condensate 6g, polyoxyethylene nonylphenol ether 3g, aluminium-magnesium silicate 0.5g, ethylene glycol 7g, tributyl phosphate 2g, silicone oil 0.2g, surplus is water, and formulation method is conveniently mixed with the suspending agent that mass percentage is 51%.
Embodiment 9
Take clodinafop-propargyl 19g, fluorine metazachlor 60g, NNO (methylene two bitter edible plant sodium sulfonate) 5g, ammonium sulfate 3g, polyvinyl alcohol 2g, kaolin is to 100g, and formulation method is conveniently mixed with the water dispersion granule that mass percentage is 79%.
Embodiment 10
Take clodinafop-propargyl 5g, fluorine metazachlor 5g, NNO (methylene two bitter edible plant sodium sulfonate) 6g, sodium lignin sulfonate 4g, kaolin is to 100g, and formulation method is conveniently mixed with the wetting powder that mass percentage is 10%.
1), toxicity determination test
Utilize the preparation in embodiment 1 ~ 4, measure its co-toxicity coefficient to wheat paddock common weed barnyard grass.
Test method: be seeded in respectively in the Disposable paper cup of 9cm by the seed of quantitative barnyard grass, sows 10 ~ 15 seeds in every glass, cultivates in illumination box, when barnyard grass 3 ~ 6 leaf phase, does composition spray to carry out spraying process in crawler type.Continue in greenhouse after process to cultivate, routine observation respectively processes the preventive effect to weeds, weighs the weeds fresh weight after each process after 30d, calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient is greater than 100, and show that two kinds of active principles have synergistic effect, co-toxicity coefficient is less than 100, shows that two kinds of active principles have antagonism.Measurement result is as shown in table 1.
Table 1 toxicity measurement result
As can be seen from the above table, the co-toxicity coefficient after two kinds of active principles are composite is all greater than 120, illustrates that the present invention has obvious synergistic effect.
2), field control effectiveness test.
Reagent agent:
4 kinds of re-compounded binary herbicides in embodiment 1 ~ 4.
Contrast medicament:
15% clodinafop-propargyl can wet-milling (commercially available), 50g/L fluorine metazachlor missible oil (commercially available).
For studying thing: wheat
Wheat seedling grows fine, robust plant, without other damage by disease and insect.
Prevent and kill off object:
The weeds such as annual bluegrass, Bermuda grass, lamb's-quarters, amaranth, smartweed.
Test method:
According to the area of experimental plot, the good various medicament of precise, and after being watered dilution, utilize knapsack sprayer, carry out even spraying, the Fan spray head that sprinkler selection weed killer herbicide is special.During spraying, liquid be noted evenly to spray application in experimental plot, accomplish the phenomenon not having drain spray, many sprays.
After test, after medicine, 20d, 40d observe weeds death condition respectively, and the activity of weeding of more various medicament.In addition, after medicine, the condition of production (consumption is the consumption of every mu of ground active ingredient) of crop also in 1 ~ 15d, to be observed, whether have poisoning to investigate medicament to crop.
Embodiments of the invention preparation Herbicidal Testing Trials effect sees the following form 2 (after medicine 20d) and table 3 (after medicine 40d)
Table 2 field control effectiveness test result (after medicine 20d)
Table 3 field control effectiveness test result (after medicine 40d)
As can be seen from the above table, Herbicidal combinations of the present invention has expansion herbicidal spectrum, improves the effect of activity of weeding, and extends the lasting period of medicament.
Table 4 medicament is to the security survey result of crop
Wheat in each process community grows fine, and has no any medicine spot, illustrates that various medicament is all safe to wheat.
Claims (10)
1. containing a compound weeding composition for clodinafop-propargyl and fluorine metazachlor, it is characterized in that: this Herbicidal combinations is with clodinafop-propargyl and fluorine metazachlor for principle active component, and wherein, the weight ratio of clodinafop-propargyl and fluorine metazachlor is 1 ~ 99:1 ~ 99.
2. the compound weeding composition containing clodinafop-propargyl and fluorine metazachlor according to claim 1, is characterized in that: in this Herbicidal combinations, the weight ratio of clodinafop-propargyl and fluorine metazachlor is 3 ~ 60:1 ~ 60.
3. the compound weeding composition containing clodinafop-propargyl and fluorine metazachlor according to claim 2, is characterized in that: in this Herbicidal combinations, the weight ratio of clodinafop-propargyl and fluorine metazachlor is 1 ~ 60:1 ~ 10.
4. the compound weeding composition containing clodinafop-propargyl and fluorine metazachlor according to claim 3, is characterized in that: in this Herbicidal combinations, the weight ratio of clodinafop-propargyl and fluorine metazachlor is 29 ~ 60:1 ~ 5.
5. the compound weeding composition containing clodinafop-propargyl and fluorine metazachlor according to any one of claim 1-4, is characterized in that: both clodinafop-propargyl and the fluorine metazachlor mass percentage in Herbicidal combinations is 1 ~ 80%.
6. the compound weeding composition containing clodinafop-propargyl and fluorine metazachlor according to claim 5, is characterized in that: both clodinafop-propargyl and the fluorine metazachlor mass percentage in Herbicidal combinations is 30 ~ 65%.
7. the compound weeding composition containing clodinafop-propargyl and fluorine metazachlor according to claim 1, is characterized in that: this compound weeding composition with clodinafop-propargyl and fluorine metazachlor for the auxiliary agent that principle active component and agricultural chemicals allow is mixed with any one formulation.
8. the compound weeding composition containing clodinafop-propargyl and fluorine metazachlor according to claim 7, is characterized in that: described formulation be missible oil, suspending agent, aqueous emulsion, microemulsion, water dispersion granule or and wetting powder in any one.
9. the application of Herbicidal combinations according to claim 1 in the weed killer herbicide for the preparation of wheat paddock postemergence weed control.
10. Herbicidal combinations according to claim 1 is for the preparation of the application of preventing and kill off in the weed killer herbicide of grassy weed and broad leaved weed in wheat paddock.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410510887.9A CN105519533A (en) | 2014-09-28 | 2014-09-28 | Herbicidal composition comprising clodinafop-propargyl and picolinafen, and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410510887.9A CN105519533A (en) | 2014-09-28 | 2014-09-28 | Herbicidal composition comprising clodinafop-propargyl and picolinafen, and application thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036239C (en) * | 1990-03-16 | 1997-10-29 | 国际壳牌研究有限公司 | Herbicidal carboxamide derivatives |
| CN1487789A (en) * | 1999-11-17 | 2004-04-07 | Selective herbicides based upon 2,6-disubstituted pyridine derivatives | |
| CN102027909A (en) * | 2009-09-28 | 2011-04-27 | 南京华洲药业有限公司 | Herbicidal composition containing diflufenican and clodinafop-propargyl and application thereof |
-
2014
- 2014-09-28 CN CN201410510887.9A patent/CN105519533A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036239C (en) * | 1990-03-16 | 1997-10-29 | 国际壳牌研究有限公司 | Herbicidal carboxamide derivatives |
| CN1487789A (en) * | 1999-11-17 | 2004-04-07 | Selective herbicides based upon 2,6-disubstituted pyridine derivatives | |
| CN102027909A (en) * | 2009-09-28 | 2011-04-27 | 南京华洲药业有限公司 | Herbicidal composition containing diflufenican and clodinafop-propargyl and application thereof |
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Application publication date: 20160427 |