CN102027909A - 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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- CN102027909A CN102027909A CN2009100361225A CN200910036122A CN102027909A CN 102027909 A CN102027909 A CN 102027909A CN 2009100361225 A CN2009100361225 A CN 2009100361225A CN 200910036122 A CN200910036122 A CN 200910036122A CN 102027909 A CN102027909 A CN 102027909A
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- diflufenican
- herbicidal combinations
- grass ester
- alkynes grass
- herbicidal composition
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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 alkynes grass ester.
Background technology
Diflufenican (diflufenican) has another name called diflufenican, chemical name: 2, and 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 chlorophyll to destroy and cell rupture, makes plant death, is the selectivity cornfield herbicidal of wide spectrum, in the soil longevity of residure longer, be applicable to before barley, the wheat paddock bud or weeding behind the bud.Diflufenican with 125～250g/ha bud before or impose on autumn sowing wheat and barley field behind the 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 relatively poor as the preventive effect of amur foxtail, its herbicidal spectrum has limitation.
Alkynes grass ester (Clodinafop-propargyl) has another name called the wheat utmost point, chemical name: (R)-2-(4-(3-fluoro-5-chloro-2-pyridine oxygen base) phenoxy group) propionic acid propynyl ester, belong to fragrant phenoxy propionic acid class weed killer herbicide, its structural representation is as follows:
Alkynes grass ester belongs to fragrant phenoxy propionic acid class weed killer herbicide, and the biosynthesis that can effectively suppress the class ester is the auxilliary quick A hydroxylase inhibitors of acetyl, is cauline leaf inorganic agent behind the selectivity inner sucting conduction type seedling.Medicament absorbs back conduction meristematic tissue by plant leaf blade, leaf sheath, suppress acetyl-CoA carboxylase, thereby it is synthetic to suppress fatty acid biological, finally causes weeds death.Resistance makes to resolve in the object metabolite of non-activity.This product is degraded to the free acid phenyl very soon in soil and pyridine moiety enters soil.
In addition, alkynes grass ester in use must be used with safener, wherein alkynes grass ester and safener---separate careless quinoline (cloquintocet-mexyl) to mix supporting use at 4: 1, be applied to the wheat paddock weeding, can prevent and treat grassy weeds such as wheat vole tail amur foxtail, tall oat grass, perennial ryegrass, rough stalked blue grass, green foxtail.But alkynes grass ester 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, it is also limited to kill the grass spectrum, be used alone the agent of weed killer herbicide list and can not control the generation of wheat paddock weeds completely effectively, moreover some weed killer herbicide is because water-soluble big or the field lasting period is oversize, consumption is excessive or the inhomogeneous residual hazard that all causes easily 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 alkynes grass ester.
Another object of the present invention provides 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 alkynes grass ester, it is characterized in that this Herbicidal combinations is main active ingredient with Diflufenican and alkynes grass ester, wherein the mass ratio of Diflufenican and alkynes grass ester is 1～80: 1～80, the mass ratio 1～50: 1～50 of preferred Diflufenican and alkynes grass ester.
In Herbicidal combinations, Diflufenican and the gross mass percentage composition of alkynes grass ester in Herbicidal combinations are 5～85%, and preferred gross mass percentage composition is 10～75%, preferred especially 25～70%.
In the binary built preparation of Diflufenican of the present invention and alkynes grass ester, except active ingredients such as Diflufenican and alkynes grass ester, can also add the auxiliary agents such as conventional surfactants, thickener, solvent or solid packing that allow on the pesticidal preparations and be mixed with any one formulation that allows on the 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 the grassy weed and broadleaf weed herbicide in wheat paddock, the barley field in preparation to have remarkable result.
Herbicidal combinations of the present invention has the following advantages:
1, activity of weeding height.The present invention selects to kill grass spectrum difference, uses after the Diflufenican of pluses and minuses complementation and two kinds of suitable decrements of weed killer herbicide of alkynes grass ester, kills weeds by two kinds of different mechanism and makes weeds resistance generation speed reduce, and 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 alkynes grass ester is a weed killer herbicide of preventing and kill off grassy weed.After both mix, can improve preventive effect to multiple grassy weed, and, because Diflufenican has the preceding activity of weeding of 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, prolonged the lasting period of medicament.
3, safe.Herbicidal combinations of the present invention is used before wheat, the barley seedling or postemergence weed control, and it can prevent and kill off various grassy weeds and broad leaved weed in wheat, the 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%, alkynes grass ester 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%, alkynes grass ester 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%, alkynes grass ester 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%, alkynes grass ester 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%, alkynes grass ester 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%, alkynes grass ester 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), indoor active determination test
Utilize the preparation among the embodiment 1～4, measure its co-toxicity coefficient farmland common weed 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, in illumination box, cultivate, treat that amur foxtail 3～6 leaves during the phase, do the processing of spraying on the composition spray in crawler type.Handle in the greenhouse, back and continue to cultivate, each handles preventive effect to weeds routine observation, and each weeds fresh weight after handling of weighing behind the 30d is pressed the method for 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.
The indoor active determination test result of table 1
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 among reagent agent: the embodiment 1～4.
Contrast medicament: 50% Diflufenican suspending agent (commercially available), 15% alkynes grass ester wetting powder (commercially available).
For studying thing: wheat, wheat seedling grows fine, and robust plant does not have other damage by disease and insect.
Prevent and kill off object: 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 converting the water dilution, utilize knapsack sprayer, and carrying out even spraying, shower nozzle is selected the Fan spray head of weed killer herbicide special use for use.During spraying, note soup is evenly sprayed application in the experimental plot, accomplish not leak the phenomenon of spray, many sprays.
After the test respectively behind medicine 20d, 40d observe the weeds death condition, and the activity of weeding of more various medicaments.In addition, also to behind medicine, observe the condition of production of crop in 1～15d, whether crop be had poisoning to investigate medicament.
Embodiments of the invention preparation weeding test effect 2 (20d behind the medicine) that see the following form, table 3 (40d behind the medicine), medicament the results are shown in Table 4 to the security survey of crop.
Table 2 field control effectiveness test result (20d behind the medicine)
Table 3 field control effectiveness test result (40d behind the medicine)
Consumption in table 2 and the table 3 all refers to the consumption of active ingredient in each preparation.
As can be seen, the present invention has significant preventive effect to grassy weed and broad leaved weed from table 2 and table 3, and synergy is remarkable, and the lasting period is long.
Table 4 medicament is to the security survey result of crop
Each wheat seedling of handling in the sub-district grows fine, and does not see any medicine spot, illustrates that various medicaments are to the equal safety of wheat.
Claims (8)
1. a Herbicidal combinations that contains Diflufenican and alkynes grass ester is characterized in that this Herbicidal combinations is main active ingredient with Diflufenican and alkynes grass ester, and wherein the mass ratio of Diflufenican and alkynes grass ester is 1～80: 1～80.
2. the Herbicidal combinations that contains Diflufenican and alkynes grass ester according to claim 1 is characterized in that the mass ratio of Diflufenican and the careless ester of alkynes is 1～50: 1～50 in this Herbicidal combinations.
3. according to claim 1,2 described Herbicidal combinations, it is characterized in that the gross mass percentage composition of Diflufenican and alkynes grass ester in Herbicidal combinations is 5～85%.
4. Herbicidal combinations according to claim 3 is characterized in that the gross mass percentage composition of Diflufenican and alkynes grass ester in Herbicidal combinations is 10～75%.
5. Herbicidal combinations according to claim 1 is characterized in that Diflufenican and alkynes grass ester and known auxiliary agent are mixed with any one formulation that allows on the agricultural chemicals.
6. Herbicidal combinations according to claim 5 is characterized in that described formulation is suspending agent, missible oil, water dispersion granule or wetting powder.
7. the described Herbicidal combinations of claim 1 is prevented and kill off application in the weed killer herbicides of wheat paddock, barley field weeds in preparation.。
8. the described Herbicidal combinations of claim 1 is prevented and kill off application in the weed killer herbicide of grassy weed and broad leaved weed in wheat paddock, the barley field in preparation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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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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| CN 200910036122 CN102027909B (en) | 2009-09-28 | 2009-09-28 | Herbicidal composition containing diflufenican and clodinafop-propargyl and application thereof |
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| CN102027909A true CN102027909A (en) | 2011-04-27 |
| CN102027909B CN102027909B (en) | 2013-05-22 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102599163A (en) * | 2011-12-20 | 2012-07-25 | 青岛瀚生生物科技股份有限公司 | Compound herbicide |
| CN105379732A (en) * | 2015-07-22 | 2016-03-09 | 南京华洲药业有限公司 | Compound weeding composition containing clodinafop-propargyl and isoxaben and application thereof |
| 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 |
| 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 |
| 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 |
| 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 |
| CN109874577A (en) * | 2019-04-18 | 2019-06-14 | 淮安市植保植检站 | Wheatland Wintering Period chemical weed control method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1364055A (en) * | 1999-07-01 | 2002-08-14 | 巴斯福股份公司 | Emulsionable herbicides |
| WO2006029736A1 (en) * | 2004-09-18 | 2006-03-23 | Bayer Cropscience Gmbh | Liquid plant protection formulation comprising diflufenican |
-
2009
- 2009-09-28 CN CN 200910036122 patent/CN102027909B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1364055A (en) * | 1999-07-01 | 2002-08-14 | 巴斯福股份公司 | Emulsionable herbicides |
| WO2006029736A1 (en) * | 2004-09-18 | 2006-03-23 | Bayer Cropscience Gmbh | Liquid plant protection formulation comprising diflufenican |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102599163A (en) * | 2011-12-20 | 2012-07-25 | 青岛瀚生生物科技股份有限公司 | Compound herbicide |
| CN102599163B (en) * | 2011-12-20 | 2014-01-22 | 青岛瀚生生物科技股份有限公司 | Compound herbicide |
| 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 |
| 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 |
| 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 |
| CN105379732A (en) * | 2015-07-22 | 2016-03-09 | 南京华洲药业有限公司 | Compound weeding composition containing clodinafop-propargyl and isoxaben and application thereof |
| 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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| CN102027909B (en) | 2013-05-22 |
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