CN102027940B - Herbicidal composition containing diflufenican and fenoxaprop-ethyl and application thereof - Google Patents
Herbicidal composition containing diflufenican and fenoxaprop-ethyl and application thereof Download PDFInfo
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- CN102027940B CN102027940B CN 200910036121 CN200910036121A CN102027940B CN 102027940 B CN102027940 B CN 102027940B CN 200910036121 CN200910036121 CN 200910036121 CN 200910036121 A CN200910036121 A CN 200910036121A CN 102027940 B CN102027940 B CN 102027940B
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Abstract
The invention belongs to the field of pesticides and discloses a herbicidal composition containing diflufenican and fenoxaprop-ethyl and application thereof. The herbicide takes diflufenican and fenoxaprop-ethyl as the main active ingredients, wherein the mass ratio of diflufenican to fenoxaprop-ethyl is (1-80):(1-80) and diflufenican and fenoxaprop-ethyl account for 1-85% of the herbicidal composition by mass. The herbicidal composition can be applied to preparing the herbicides for controlling the preemergence or postemergence weeds in the barley fields and the wheat fields and especially has obvious effect on preparing the herbicides for controlling various grass and broadleaf weeds in the barley fields and the wheat fields. Compared with the single agent, the herbicidal composition delays weed resistance, has wide herbicidal spectrum and long efficacy duration and does no harm to the wheat and barley and the aftercrops on the premise of improving the drug effect.
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 fenoxapropPethyl.
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 formula 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 the soil longevity of residure longer, be applicable to before barley, the wheat paddock bud or weeding behind the bud.To impose on autumn sowing Wheat and barley field before 125～250g/ha bud or behind the bud, prevent and kill off various grassy weeds and broad leaved weed, especially clearvers, Veronica and violet weeds.But pyrrole fluorine grass hydrazone is to grassy weed, and relatively poor such as the preventive effect of amur foxtail, its herbicidal spectrum has limitation.
FenoxapropPethyl (fenoxaprop-ethyl) has another name called galloping horse, 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, its structural formula is as follows:
FenoxapropPethyl is absorption selective herbicide in the contact-type, absorbs by leaf, to pushing up or being transferred to root or rhizome downwards, mainly is key enzyme one acetyl-CoA carboxylase that synthesizes by suppressing fatty acid, thereby has suppressed the synthetic of fatty acid.Medicament is by the growing point of cauline leaf Assimilation and conductivity to meristematic tissue and root, and effect stopped growing after the dispenser rapidly in 2-3 days, 5-6 days lobus cardiacus chlorosis purpling looks, and meristematic tissue browning look, blade is withered gradually, is the extremely strong cauline leaf inorganic agent of selectivity.FenoxapropPethyl is suitable for dicotyledonous crops such as the Tanakas such as soybean, peanut, rape, cotton, beet, flax, potato, vegetable fields and sorosis garden prevent and kill off monocotyledon weed.Be suitable for wheat paddock behind the adding safener fenchlorazole and prevent and kill off grassy weed.But fenoxapropPethyl 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 because 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 objective of the invention is the above-mentioned deficiency for prior art, a kind of Herbicidal combinations that contains Diflufenican and fenoxapropPethyl is provided.
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 fenoxapropPethyl is characterized in that this Herbicidal combinations take Diflufenican and fenoxapropPethyl as main active ingredient, and wherein the mass ratio of Diflufenican and fenoxapropPethyl is 1～80: 1～80.The mass ratio of preferred Diflufenican and fenoxapropPethyl is 1～70: 1～60, particularly preferably 1～50: 1～60.
In Herbicidal combinations, the two quality percentage composition in Herbicidal combinations of Diflufenican and fenoxapropPethyl is 1～85%, and the preferred mass percentage composition is 10～75%, particularly preferably 25～75%.
In the binary built preparation of Diflufenican of the present invention and fenoxapropPethyl, except Diflufenican and fenoxapropPethyl active ingredient, 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, aqueous emulsion, do outstanding agent, water dispersion granule, wetting powder.
Herbicidal combinations of the present invention can be applicable to prepare to be prevented and kill off before the wheat paddock, barley field seedling or the weed killer herbicide of weeds behind the seedling, particularly uses to have remarkable result in the weed killer herbicides of various grassy weeds and broad leaved weed in wheat paddock, the barley field is prevented and kill off in preparation.
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, so that Weed Resistance has produced Speed Reduction, greatly improves the removing activity of weed killer herbicide.
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 fenoxapropPethyl is the weed killer herbicide of preventing and kill off grassy weed.After both mix, can improve the preventive effect to multiple grassy weed and broad leaved weed, and, because Diflufenican has the front activity of weeding of bud, so that this combinations of herbicides is 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, use before wheat, the barley seedling or postemergence weed control, it can prevent and kill off various grassy weeds and broad leaved weed in wheat paddock, the barley field, under the prerequisite that has improved drug effect, wheat, barley and succession crop is all had safety.
Embodiment
Embodiment 1
Diflufenican 21%, fenoxapropPethyl 4% is separated careless quinoline 1%, calcium dodecyl benzene sulfonate 5%, alkylphenol polyoxyethylene 3%, xanthans 2%, water supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 25% the floating agent of water.
Embodiment 2
Diflufenican 1%, fenoxapropPethyl 9% is separated careless quinoline 2%, calcium dodecyl benzene sulfonate 5%, 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 10% missible oil.
Embodiment 3
Diflufenican 50%, fenoxapropPethyl 25% is separated careless quinoline 5%, 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 5%, fenoxapropPethyl 60% is separated careless quinoline 2%, 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 65% wetting powder.
Embodiment 5
Diflufenican 19%, fenoxapropPethyl 1% is separated careless quinoline 2%, neopelex 4%.NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, xanthans 2%, water supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 20% suspending agent.
Embodiment 6
Diflufenican 15%, fenoxapropPethyl 10%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, dodecyl sodium sulfate 4%, sodium lignin sulfonate supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 25% the outstanding agent of doing.
Embodiment 7
1), toxicity determination test
Utilize the preparation among the 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, in illumination box, cultivate, treat amur foxtail 3～6 leaves during the phase, do the composition spray processing of spraying in crawler type.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 behind the 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.
Reagent agent:
4 kinds of re-compounded binary herbicides among the embodiment 1～4.
The contrast medicament:
50% Diflufenican suspending agent (commercially available), 10% fenoxapropPethyl EC (adding fenchlorazole)
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 field 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 not drain spray, spraying more.
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, to investigate medicament whether crop be had poisoning.
Embodiments of the invention preparation weeding test effect see the following form 2 (20d behind the medicine), 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)
| Treatment agent | Consumption (ga.i/ mu) | Grass family preventive effect (%) | Broad leaved weed preventive effect (%) | Total preventive effect (%) |
| Embodiment 1 | 15 | 95 | 94 | 94 |
| Embodiment 2 | 15 | 97 | 92 | 91 |
| Embodiment 3 | 15 | 95 | 90 | 94 |
| Embodiment 4 | 15 | 96 | 91 | 93 |
| 50% Diflufenican suspending agent | 20 | 87 | 86 | 86 |
| 10% fenoxapropPethyl EC | 24 | 83 | - | 49 |
[0051]Table 3 field control effectiveness test result (40d behind the medicine)
| Treatment agent | Consumption (ga.i/ mu) | Grass family preventive effect (%) | Broad leaved weed preventive effect (%) | Total preventive effect (%) |
| Embodiment 1 | 15 | 96 | 95 | 95 |
| Embodiment 2 | 15 | 98 | 93 | 92 |
| Embodiment 3 | 15 | 96 | 91 | 95 |
| Embodiment 4 | 15 | 97 | 92 | 94 |
| 50% Diflufenican suspending agent | 20 | 88 | 87 | 87 |
| 10% fenoxapropPethyl EC | 24 | 84 | - | 50 |
Consumption in table 2 and the 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.
Table 4 medicament is to the security survey result of 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 fenoxapropPethyl is characterized in that this Herbicidal combinations take Diflufenican and fenoxapropPethyl as main active ingredient, and prepares by the following method:
Diflufenican 21%, fenoxapropPethyl 4% is separated careless quinoline 1%, calcium dodecyl benzene sulfonate 5%, alkylphenol polyoxyethylene 3%, xanthans 2%, water supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 25% the floating agent of water.
2. Herbicidal combinations that contains Diflufenican and fenoxapropPethyl is characterized in that this Herbicidal combinations take Diflufenican and fenoxapropPethyl as main active ingredient, and prepares by the following method:
Diflufenican 1%, fenoxapropPethyl 9% is separated careless quinoline 2%, calcium dodecyl benzene sulfonate 5%, 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 10% missible oil.
3. Herbicidal combinations that contains Diflufenican and fenoxapropPethyl is characterized in that this Herbicidal combinations take Diflufenican and fenoxapropPethyl as main active ingredient, and prepares by the following method:
Diflufenican 50%, fenoxapropPethyl 25% is separated careless quinoline 5%, 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 fenoxapropPethyl is characterized in that this Herbicidal combinations take Diflufenican and fenoxapropPethyl as main active ingredient, and prepares by the following method:
Diflufenican 5%, fenoxapropPethyl 60% is separated careless quinoline 2%, and NNO 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 65% 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 herbicides of various grassy weeds and broad leaved weed in wheat paddock, the barley field in preparation.
10. Herbicidal combinations claimed in claim 2 is prevented and kill off application in the weed killer herbicides of various grassy weeds and broad leaved weed in wheat paddock, the barley field in preparation.
11. Herbicidal combinations claimed in claim 3 is prevented and kill off application in the weed killer herbicides of various grassy weeds and broad leaved weed in wheat paddock, the barley field in preparation.
12. Herbicidal combinations claimed in claim 4 is prevented and kill off application in the weed killer herbicides of various grassy weeds and broad leaved weed in wheat paddock, the barley field in preparation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910036121 CN102027940B (en) | 2009-09-28 | 2009-09-28 | Herbicidal composition containing diflufenican and fenoxaprop-ethyl and application thereof |
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| CN 200910036121 CN102027940B (en) | 2009-09-28 | 2009-09-28 | Herbicidal composition containing diflufenican and fenoxaprop-ethyl and application thereof |
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| CN102027940A CN102027940A (en) | 2011-04-27 |
| CN102027940B true CN102027940B (en) | 2013-09-18 |
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| CN106259357A (en) * | 2016-08-08 | 2017-01-04 | 江苏辉丰农化股份有限公司 | There is the Herbicidal combinations of potentiation |
| CN106259356B (en) * | 2016-08-08 | 2019-03-12 | 江苏辉丰农化股份有限公司 | Herbicidal combinations with synergistic effect |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003024227A2 (en) * | 2001-09-20 | 2003-03-27 | Syngenta Participations Ag | Herbicidal composition |
| CN1487789A (en) * | 1999-11-17 | 2004-04-07 | Selective herbicides based upon 2,6-disubstituted pyridine derivatives | |
| CN1589099A (en) * | 2001-11-22 | 2005-03-02 | 拜尔作物科学有限公司 | Synergistic herbicidal compositions containing herbicides from the group of benzoylpyrazoles |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1487789A (en) * | 1999-11-17 | 2004-04-07 | Selective herbicides based upon 2,6-disubstituted pyridine derivatives | |
| WO2003024227A2 (en) * | 2001-09-20 | 2003-03-27 | Syngenta Participations Ag | Herbicidal composition |
| CN1589099A (en) * | 2001-11-22 | 2005-03-02 | 拜尔作物科学有限公司 | Synergistic herbicidal compositions containing herbicides from the group of benzoylpyrazoles |
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