CN102027909B - Herbicidal composition containing diflufenican and clodinafop-propargyl and application thereof - Google Patents
Herbicidal composition containing diflufenican and clodinafop-propargyl and application thereof Download PDFInfo
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- CN102027909B CN102027909B CN 200910036122 CN200910036122A CN102027909B CN 102027909 B CN102027909 B CN 102027909B CN 200910036122 CN200910036122 CN 200910036122 CN 200910036122 A CN200910036122 A CN 200910036122A CN 102027909 B CN102027909 B CN 102027909B
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Abstract
The invention belongs to the field of pesticide, and discloses a herbicidal composition containing diflufenican and clodinafop-propargyl and application thereof. The diflufenican and the clodinafop-propargyl are used as main active ingredients in the herbicidal composition; the mass ratio of the diflufenican to the clodinafop-propargyl is 1-80: 1-80; and the diflufenican and the clodinafop-propargyl account for 5 to 85 percent of the total mass of the herbicidal composition. The herbicidal composition can be applied in preparation of herbicide for controlling weeds among barley or wheat field seedlings, particularly in preparation of herbicide for controlling various gramineous weeds and broadleaf weeds in wheat or barley fields. Compared with a single-component herbicide, the herbicidal composition delays the weed resistance, has broad herbicidal spectrum and acts for a long time on the premise of improving herbicide effect, and is safe for wheat, barley and afterculture crops.
Description
Technical field
The invention belongs to pesticide field, relate to a kind of Herbicidal combinations, be specifically related to a kind of Herbicidal combinations and application thereof that contains Diflufenican and clodinafop-propargyl.
Background technology
Diflufenican (diflufenican) has another name called diflufenican, chemical name: 2,4-, two chloro-2-(α, α, α-trichlorine fluorine m-phenoxy)-3-pyridine anilide, belong to the pyridines weed killer herbicide, and its structural representation is as follows:
Diflufenican belongs to the carotenoid biosynthesis inhibitor, can cause Destruction of Chlorophyll and cell rupture, makes plant dead, is the selectivity cornfield herbicidal of wide spectrum, in soil the longevity of residure longer, before being applicable to barley, wheat paddock bud or weeding after bud.Diflufenican with 125～250g/ha bud before or impose on autumn sowing Wheat and barley field after bud, prevent and kill off grassy weed and broad leaved weed, especially clearvers, Veronica and violet weeds.But pyrrole fluorine grass hydrazone is to grassy weed, and as relatively poor in the preventive effect of amur foxtail, its herbicidal spectrum has limitation.
Clodinafop-propargyl (Clodinafop-propargyl) has another name called the wheat utmost point, chemical name: (R)-2-(4-(3-fluoro-5-Chloro-2-Pyridyle oxygen base) phenoxy group) propionic acid propynyl ester, belong to fragrant phenoxy phenoxy propionic acid weed killer herbicide, and its structural representation is as follows:
Clodinafop-propargyl belongs to fragrant phenoxy phenoxy propionic acid weed killer herbicide, and the biosynthesis that can effectively suppress the class ester is the auxiliary quick A hydroxylase inhibitors of acetyl, is cauline leaf inorganic agent after selectivity inner sucting conduction type seedling.Conduction meristematic tissue after medicament is absorbed by plant leaf blade, leaf sheath suppress acetyl-CoA carboxylase, thereby it is synthetic to suppress fatty acid biological, finally causes weeds dead.Resistance makes to resolve in object the metabolite of non-activity.This product is degraded to very soon the free acid phenyl in soil and pyridine moiety enters soil.
In addition, clodinafop-propargyl in use must be mixed with safener, wherein clodinafop-propargyl and safener---separate careless quinoline (cloquintocet-mexyl) and mixed with 4: 1 and support the use, be applied to the wheat paddock weeding, can prevent and treat the grassy weeds such as wheat vole tail amur foxtail, tall oat grass, perennial ryegrass, rough stalked blue grass, green foxtail.But clodinafop-propargyl is invalid to broad leaved weed, and herbicidal spectrum is narrow, and it is restricted in the use.
The wheat paddock weed killer herbicide is limit by crop safety at present, the herbicide spectrum is also limited, be used alone the weed killer herbicide single dose and can not control completely effectively the generation of weeds of wheat, moreover some weed killer herbicide is due to water-soluble large or the field lasting period is oversize, consumption is excessive or the inhomogeneous residual hazard that all easily causes this season crop or succession crop of dispenser.
Summary of the invention:
The purpose of this invention is to provide a kind of Herbicidal combinations that contains Diflufenican and clodinafop-propargyl.
Another object of the present invention is to provide this Herbicidal combinations and prevents and kill off application in the weed killer herbicides of wheat paddock, barley field weeds in preparation.
A kind of Herbicidal combinations that contains Diflufenican and clodinafop-propargyl, it is characterized in that this Herbicidal combinations is take Diflufenican and clodinafop-propargyl as main active ingredient, wherein the mass ratio of Diflufenican and clodinafop-propargyl is 1～80: 1～80, the mass ratio 1～50: 1～50 of preferred Diflufenican and clodinafop-propargyl.
In Herbicidal combinations, Diflufenican and the clodinafop-propargyl gross mass percentage composition in Herbicidal combinations is 5～85%, and preferred gross mass percentage composition is 10～75%, particularly preferably 25～70%.
In the binary built preparation of Diflufenican of the present invention and clodinafop-propargyl, except the active ingredients such as Diflufenican and clodinafop-propargyl, can also add the auxiliary agents such as conventional surfactants, thickener, solvent or solid packing that allow on pesticidal preparations and be mixed with any one formulation that allows on agricultural chemicals.Preferably be processed into suspending agent, missible oil, water dispersion granule, wetting powder etc.
Herbicidal combinations of the present invention can be used in the weed killer herbicides of wheat paddock, barley field weeds is prevented and kill off in preparation, particularly prevents and kill off to use in grassy weed and broadleaf weed herbicide in wheat paddock, barley field in preparation to have remarkable result.
Herbicidal combinations of the present invention has the following advantages:
1, activity of weeding is high.But selection herbicide spectrum of the present invention is different, uses after two kinds of suitable decrements of weed killer herbicide of the Diflufenican of pluses and minuses complementation and clodinafop-propargyl, kills weeds by two kinds of different mechanism and makes Weed Resistance produce Speed Reduction, greatly improves the removing activity of Herbicidal combinations.
2, herbicidal spectrum is wide, and the lasting period is long.Diflufenican is the broad spectrum weeding agent, and it all has good preventive effect to grassy weed and broad leaved weed, and clodinafop-propargyl is to prevent and kill off the weed killer herbicide of grassy weed.After both mix, can improve the preventive effect to multiple grassy weed, and, because Diflufenican has activity of weeding before bud, make this combinations of herbicides when preventing and kill off the weeds of being unearthed, to being about to the unearthed weeds of germination, certain activity is arranged, suppressed the unearthed growth of weeds, extended the lasting period of medicament.
3, safe.Herbicidal combinations of the present invention, before using wheat, barley seedling or postemergence weed control, it can prevent and kill off various grassy weeds and broad leaved weed in wheat, barley field, under the prerequisite that has improved drug effect, wheat, barley and succession crop is all had safety.
Specific embodiments
Embodiment 1
Diflufenican 21%, clodinafop-propargyl 4% is separated careless quinoline 1%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, dodecyl sodium sulfate 4%, xanthans 2%, water supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 25% suspending agent.
Embodiment 2
Diflufenican 26%, clodinafop-propargyl 4% is separated careless quinoline 1%, calcium dodecyl benzene sulfonate 4%, alkylphenol polyoxyethylene 3%, solvent naphtha supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 30% missible oil.
Embodiment 3
Diflufenican 25%, clodinafop-propargyl 50% is separated careless quinoline 3%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 75% water dispersion granule.
Embodiment 4
Diflufenican 50%, clodinafop-propargyl 10% is separated careless quinoline 2.5%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 4%, white carbon 9%, kaolin supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 60% wetting powder.
Embodiment 5
Diflufenican 29%, clodinafop-propargyl 1% is separated careless quinoline 0.25%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, dodecyl sodium sulfate 4%, thickener 2%, water supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 30% suspending agent.
Embodiment 6
Diflufenican 1%, clodinafop-propargyl 24% is separated careless quinoline 6%, calcium dodecyl benzene sulfonate 4%, alkylphenol polyoxyethylene 3%, solvent naphtha supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 25% missible oil.
Embodiment 7
1), toxicity determination test
Utilize the preparation in embodiment 1～4, measure it to the co-toxicity coefficient of Common Farmland Weeds amur foxtail.
Test method: the seed of quantitative amur foxtail is seeded in respectively in the Disposable paper cup of 9cm, sows 10～15 seeds in every glass, cultivate in illumination box, during the phase, do in crawler type the processing of spraying on composition spray until amur foxtail 3～6 leaves.Continue in the greenhouse after processing to cultivate, each processes preventive effect to weeds routine observation, and each weeds fresh weight after processing of weighing after 30d is pressed the method for the nineteen sixty propositions such as Sun Yunpei, calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient shows that greater than 100 two kinds of active principles have synergistic effect, and co-toxicity coefficient shows that less than 100 two kinds of active principles have antagonism.Measurement result is as shown in table 1.
Table 1 toxicity determination test result
As can be seen from the above table, the co-toxicity coefficient after two kinds of active principles are composite illustrates that all greater than 100 the present invention has obvious synergistic effect.
2, field control effectiveness test.
4 kinds of re-compounded binary herbicides in reagent agent: embodiment 1～4.
Contrast medicament: 50% Diflufenican suspending agent (commercially available), 15% clodinafop-propargyl wetting powder (commercially available).
For studying thing: wheat, wheat seedling grows fine, and robust plant is without other damage by disease and insect.
Prevent and kill off object: the wheatland advantage weeds such as amur foxtail, wild oat, green foxtail, clearvers, Veronica.
Test method:
According to the area of experimental plot, the accurate good various medicaments of weighing, and after being watered dilution, utilize knapsack sprayer, carry out even spraying, the Fan spray head of sprinkler selection weed killer herbicide special use.During spraying, note liquid is evenly sprayed application in the experimental plot phenomenon of accomplishing there is no drain spray, spraying more.
After test respectively after medicine 20d, 40d observe the weeds death condition, and the activity of weeding of more various medicaments.In addition, also to observe the condition of production of crop in 1～15d after medicine, to investigate medicament, whether crop be had poisoning.
Embodiments of the invention preparation weeding test effect 2 (20d after medicine) that see the following form, table 3 (40d after medicine), medicament the results are shown in Table 4 to the security survey of crop.
Table 2 field control effectiveness test result (20d after medicine)
| Treatment agent | Consumption (ga.i/ mu) | Grass family preventive effect (%) | Broad leaved weed preventive effect (%) | Total preventive effect (%) |
| Embodiment 1 | 4 | 95 | 94 | 94 |
| Embodiment 2 | 4 | 97 | 92 | 91 |
| Embodiment 3 | 4 | 95 | 90 | 94 |
| Embodiment 4 | 4 | 96 | 91 | 93 |
| 50% Diflufenican suspending agent | 20 | 87 | 86 | 86 |
| 15% clodinafop-propargyl wetting powder | 4 | 83 | - | 49 |
Table 3 field control effectiveness test result (40d after medicine)
| Treatment agent | Consumption (ga.i/ mu) | Grass family preventive effect (%) | Broad leaved weed preventive effect (%) | Total preventive effect (%) |
| Embodiment 1 | 4 | 96 | 95 | 95 |
| Embodiment 2 | 4 | 98 | 93 | 92 |
| Embodiment 3 | 4 | 96 | 91 | 95 |
| Embodiment 4 | 4 | 97 | 92 | 94 |
| 50% Diflufenican suspending agent | 20 | 88 | 87 | 87 |
| 15% clodinafop-propargyl wetting powder | 4 | 84 | - | 50 |
Consumption in table 2 and table 3 all refers to the consumption of active ingredient in each preparation.
Can find out from table 2 and table 3, the present invention has significant preventive effect to grassy weed and broad leaved weed, and synergy is remarkable, and the lasting period is long.
The security survey result of table 4 medicament to crop
Each wheat seedling of processing in the residential quarter grows fine, and has no any medicine spot, illustrates that various medicaments are to the equal safety of wheat.
Claims (12)
1. Herbicidal combinations that contains Diflufenican and clodinafop-propargyl is characterized in that this Herbicidal combinations take Diflufenican and clodinafop-propargyl as main active ingredient, preparation by the following method:
Diflufenican 21%, clodinafop-propargyl 4% is separated careless quinoline 1%, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 6%, dodecyl sodium sulfate 4%, xanthans 2%, water supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 25% suspending agent.
2. Herbicidal combinations that contains Diflufenican and clodinafop-propargyl is characterized in that this Herbicidal combinations take Diflufenican and clodinafop-propargyl as main active ingredient, preparation by the following method:
Diflufenican 26%, clodinafop-propargyl 4% is separated careless quinoline 1%, calcium dodecyl benzene sulfonate 4%, alkylphenol polyoxyethylene 3%, solvent naphtha supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 30% missible oil.
3. Herbicidal combinations that contains Diflufenican and clodinafop-propargyl is characterized in that this Herbicidal combinations take Diflufenican and clodinafop-propargyl as main active ingredient, preparation by the following method:
Diflufenican 25%, clodinafop-propargyl 50% is separated careless quinoline 3%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 75% water dispersion granule.
4. Herbicidal combinations that contains Diflufenican and clodinafop-propargyl is characterized in that this Herbicidal combinations take Diflufenican and clodinafop-propargyl as main active ingredient, preparation by the following method:
Diflufenican 50%, clodinafop-propargyl 10% is separated careless quinoline 2.5%, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 6%, sodium lignin sulfonate 4%, white carbon 9%, kaolin supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 60% wetting powder.
5. Herbicidal combinations claimed in claim 1 is prevented and kill off application in the weed killer herbicides of wheat paddock, barley field weeds in preparation.
6. Herbicidal combinations claimed in claim 2 is prevented and kill off application in the weed killer herbicides of wheat paddock, barley field weeds in preparation.
7. Herbicidal combinations claimed in claim 3 is prevented and kill off application in the weed killer herbicides of wheat paddock, barley field weeds in preparation.
8. Herbicidal combinations claimed in claim 4 is prevented and kill off application in the weed killer herbicides of wheat paddock, barley field weeds in preparation.
9. Herbicidal combinations claimed in claim 1 is prevented and kill off application in the weed killer herbicide of grassy weed and broad leaved weed in wheat paddock, barley field in preparation.
10. Herbicidal combinations claimed in claim 2 is prevented and kill off application in the weed killer herbicide of grassy weed and broad leaved weed in wheat paddock, barley field in preparation.
11. Herbicidal combinations claimed in claim 3 is prevented and kill off application in the weed killer herbicide of grassy weed and broad leaved weed in wheat paddock, barley field in preparation.
12. Herbicidal combinations claimed in claim 4 is prevented and kill off application in the weed killer herbicide of grassy weed and broad leaved weed in wheat paddock, barley field in preparation.
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| CN 200910036122 CN102027909B (en) | 2009-09-28 | 2009-09-28 | Herbicidal composition containing diflufenican and clodinafop-propargyl and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102599163B (en) * | 2011-12-20 | 2014-01-22 | 青岛瀚生生物科技股份有限公司 | Compound herbicide |
| CN105519532A (en) * | 2014-09-28 | 2016-04-27 | 南京华洲药业有限公司 | Herbicidal composition comprising clodinafop-propargyl and fluorochloridone, and application thereof |
| CN105519533A (en) * | 2014-09-28 | 2016-04-27 | 南京华洲药业有限公司 | Herbicidal composition comprising clodinafop-propargyl and picolinafen, and application thereof |
| CN105519531A (en) * | 2014-09-28 | 2016-04-27 | 南京华洲药业有限公司 | Clodinafop-propargyl and beflubutamid containing weeding composition and application thereof |
| CN105379732B (en) * | 2015-07-22 | 2017-12-12 | 南京华洲药业有限公司 | A kind of compound weeding composition and its application containing clodinafop-propargyl and isoxaben |
| CN105409960A (en) * | 2015-12-23 | 2016-03-23 | 广东中迅农科股份有限公司 | Weeding composition containing diflufenican and chodinafop-propargyl |
| CN109874577A (en) * | 2019-04-18 | 2019-06-14 | 淮安市植保植检站 | Wheatland Wintering Period chemical weed control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1364055A (en) * | 1999-07-01 | 2002-08-14 | 巴斯福股份公司 | Emulsionable herbicides |
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| DE102004045371A1 (en) * | 2004-09-18 | 2006-04-13 | Bayer Cropscience Gmbh | Liquid crop protection formulations containing diflufenican |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1364055A (en) * | 1999-07-01 | 2002-08-14 | 巴斯福股份公司 | Emulsionable herbicides |
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