CN102027930B - Weeding composition containing fluazifop-p-butyl and quizalofop-p-tefuryl and application thereof - Google Patents
Weeding composition containing fluazifop-p-butyl and quizalofop-p-tefuryl and application thereof Download PDFInfo
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- CN102027930B CN102027930B CN 200910036184 CN200910036184A CN102027930B CN 102027930 B CN102027930 B CN 102027930B CN 200910036184 CN200910036184 CN 200910036184 CN 200910036184 A CN200910036184 A CN 200910036184A CN 102027930 B CN102027930 B CN 102027930B
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Abstract
The invention discloses a weeding composition containing fluazifop-p-butyl and quizalofop-p-tefuryl and application thereof. The fluazifop-p-butyl and the quizalofop-p-tefuryl are used as main effective ingredients of the weeding composition, and the mass ratio of the fluazifop-p-butyl to the quizalofop-p-tefuryl is 1-80: 1-80. The weeding composition delays weed resistance on the premise of improving the pesticide effect compared with single agent, has wide weeding spectrum and long acting period, has safety for soybean and subsequent crops, and can be used for preparing herbicide for controlling weeds among soybean field seedlings.
Description
Technical field
The invention belongs to technical field of pesticide, weed killer herbicide field especially relates to the binary built composition of a kind of efficient fluazifop and quizalofopPtefuryl.This Herbicidal combinations can be applicable to the Soybean Field postemergence weed control.
Background technology
Efficient fluazifop has another name called fluazifop-p-butyl, chemical name: (R)-and the 2-{4-[(5-trifluoromethyl)-2-base-pyridine radicals] the oxygen base } butyl propionate.Belonging to phenoxy carboxylic acid herbicides, is the fatty acid synthetic inhibitor, is fluorinated heterocycle highy potent herbicide of new generation.Its structural formula is as follows:
Be mainly used in preventing and treating the annual and perennial grassy weeds such as barnyard grass, wild oat, green foxtail, Setaria glauca, eleusine indica, amur foxtail, moleplant seed, india lovegrass, bromegrass, Hordeum, Secale, millet genus, annual bluegrass, Bermuda grass, Paspalum distichum, false Chinese sorghum, reed, wild silkworm, cogongrass, quackgrass.Full field dispenser or the dispenser of seedling band all can.The little usefulness of weed size is hanged down dose, and leaf age is large uses high dose; In the situation that moisture condition is good with low dose, under drought condition, use high dose.And the impact of its herbicidal effect climate and rainwater is serious, therefore, is subject in the use the impact that local climate changes.
QuizalofopPtefuryl has another name called spray spy, the careless ester of health.Chemical name: (RS)-2-methylfuran hydrogen ester base (R)-2-[4-(6-chloro-2-quinoxaline oxygen) phenoxy group] ethyl propionate, structural formula is:
QuizalofopPtefuryl is acetyl-CoA carboxylase (ACCase) inhibitor.Can be absorbed by the grassy weed cauline leaf very soon after cauline leaf is processed, conduct to the meristematic tissue of whole plant, suppress the synthetic of fatty acid, stop germination and root growth and kill weeds.QuizalofopPtefuryl lasting period in the weeds body is longer, and weeds stop growing very soon behind the spray medicine, 3-5 right overhead leaf base browning, and obvious flavescence necrosis appearred in weeds in 5-10 days, and whole strain in 14-20 days is dead.But it is invalid to broad leaved weed, because Soybean Field uses quizalofopPtefuryl for a long time, some weeds have produced serious resistance to it.
Soybean field 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 soybean weeds, 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.Therefore, but selection herbicide spectrum of the present invention is different, being made into mixture after two kinds of suitable decrements of weed killer herbicide of the efficient fluazifop of pluses and minuses complementation and quizalofopPtefuryl uses, so both enlarged the herbicide spectrum, obviously improved herbicidal effect, also avoided this season is done the deposits yields poisoning and succession crop produced the possibility of residual hazard.
Summary of the invention
The purpose of this invention is to provide a kind of Herbicidal combinations that contains efficient fluazifop and quizalofopPtefuryl.
Another object of the present invention provides this Herbicidal combinations for the preparation of the application in the weed killer herbicide of Soybean Field postemergence weed control.
A kind of Herbicidal combinations that contains efficient fluazifop and quizalofopPtefuryl, this Herbicidal combinations is take efficient fluazifop and quizalofopPtefuryl as main active ingredient, the mass ratio of efficient fluazifop and quizalofopPtefuryl is 1～80: 1～80, the mass ratio of preferred efficient fluazifop and quizalofopPtefuryl is 1～50: 1～60, and most preferably the mass ratio of efficient fluazifop and quizalofopPtefuryl is 1～10: 2～30.
In Herbicidal combinations, the two quality percentage composition in Herbicidal combinations of efficient fluazifop and quizalofopPtefuryl is 1～85%, and the preferred mass percentage composition is 10～75%, and most preferably the quality percentage composition is 25～75%.
In the binary built composition of efficient fluazifop of the present invention and quizalofopPtefuryl, except the active ingredients such as efficient fluazifop and quizalofopPtefuryl, can also add the auxiliary agents such as conventional surfactants, thickener, solvent or solid packing that allow on the pesticidal preparations, adopt the conventional formulation method to be mixed with any one formulation that allows on the agricultural chemicals.Preferably be processed into missible oil, suspending agent, aqueous emulsion, microemulsion, water dispersion granule, wetting powder etc.Using said composition can dilute rear employing and the known method such as spray.
Described surfactant specifically can adopt alkylphenol polyoxyethylene, phenethyl phenol polyethenoxy ether, methyl naphthalene sulfonate formaldehyde condensate, polyoxyethylene nonylphenol ether, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) etc., solid packing can be selected kaolin, diatomite etc., and solvent can adopt ethylene glycol, cyclohexanone, dimethylbenzene, water etc.These auxiliary agents can alone or mixing and usefulness, also can add other auxiliary material that allows on the pesticidal preparations.
" % " of the present invention is weight percentage.
Herbicidal combinations of the present invention can be used for the Soybean Field postemergence weed control, prevents and kill off particularly that various grassy weeds have remarkable result in the Soybean Field.
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, and removing activity greatly.
2, herbicidal spectrum is wide, and the lasting period is long.Efficient fluazifop is the broad spectrum weeding agent, and it has good preventive effect to annual gramineous weed, and quizalofopPtefuryl is the weed killer herbicide of preventing and kill off grassy weed.Both can improve the control to multiple annual gramineous weed and perennial grassy weed after mixing.
3, delay Weed Resistance.Weed killer herbicide of the present invention reduces weeds to the resistance of medicament by binary built, and improves the preventive effect of antagonism weeds, thereby prolongs the service life of medicament.
4, safe.Because its using dosage is under control, make medicament under the prerequisite that has improved drug effect, its safety to the field seedling such as soybean, cotton, rape and tobacco and succession crop also is improved.
Herbicidal combinations of the present invention is applied to the Soybean Field postemergence weed control especially, and it can prevent and kill off various grassy weeds in the Soybean Field, under the prerequisite that has improved drug effect, soybean and succession crop is all had safety.
Therefore, Herbicidal combinations of the present invention can be used in the weed killer herbicide for the preparation of the Soybean Field postemergence weed control, particularly uses in for the preparation of the weed killer herbicide of preventing and kill off grassy weed in the Soybean Field.
Embodiment
Embodiment 1
Efficient fluazifop 15%, quizalofopPtefuryl 20%, alkylphenol polyoxyethylene 4%, phenethyl phenol polyethenoxy ether 15%, dimethylbenzene to 100% drops into above raw material and mixes the method for preparing routinely missible oil in the mixing kettle to make the quality percentage composition be 35% missible oil.
Embodiment 2
Efficient fluazifop 10%, quizalofopPtefuryl 1%, methyl naphthalene sulfonate formaldehyde condensate 6%, polyoxyethylene nonylphenol ether 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, solvent naphtha 20%, water to 100%, being mixed with the quality percentage composition according to the formulation method of routine is 11% aqueous emulsion.
Embodiment 3
Efficient fluazifop 2%, quizalofopPtefuryl 35%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin to 100%, being mixed with the quality percentage composition according to the method for routine is 37% water dispersion granule.
Embodiment 4
Efficient fluazifop 60%, quizalofopPtefuryl 15%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, wooden sodium iodate 4%, kaolin to 100%, being mixed with the quality percentage composition according to the method for routine is 75% wetting powder.
Embodiment 5
Efficient fluazifop 5%, quizalofopPtefuryl 10%, methyl naphthalene sulfonate formaldehyde condensate 6%, polyoxyethylene nonylphenol ether 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, silicone oil 0.2%, surplus are water, and being mixed with the quality percentage composition according to conventional method is 25% suspending agent.
Embodiment 6
Efficient fluazifop 1%, quizalofopPtefuryl 9%, methyl naphthalene sulfonate formaldehyde condensate 6%, polyoxyethylene nonylphenol ether 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, water to 100%, being mixed with the quality percentage composition according to the method for routine is 10% microemulsion.
Embodiment 7
Efficient fluazifop 0.5%, quizalofopPtefuryl 1%, alkylphenol polyoxyethylene 4%, phenethyl phenol polyethenoxy ether 15%, dimethylbenzene to 100% drops into above raw material and mixes the method for preparing routinely missible oil in the mixing kettle to make the quality percentage composition be 1.5% missible oil.
Embodiment 8
Efficient fluazifop 10%, quizalofopPtefuryl 50%, alkylphenol polyoxyethylene 4%, phenethyl phenol polyethenoxy ether 15%, dimethylbenzene to 100% drops into above raw material and mixes the method for preparing routinely missible oil in the mixing kettle to make the quality percentage composition be 60% missible oil.
Embodiment 9
1, toxicity determination test
The preparation that utilizes embodiment 1,2,3,4 methods to prepare is measured it to the co-toxicity coefficient of barnyard grass.
Test method: the seed of quantitative barnyard grass is seeded in respectively in the Disposable paper cup of 9cm, sows 10～15 seeds in every glass, in illumination box, cultivate, treat barnyard grass 3～5 leaves during the phase, do the composition spray processing of spraying in crawler type.Continuation cultivation in the greenhouse after processing, routine observation is respectively processed the preventive effect to weeds, and the weeds fresh weight behind the 30d after each processing of weighing is pressed the abundant method of Sun Yun (nineteen sixty proposition), 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 measurement 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 binary built Herbicidal combinations among the embodiment 1～4.
The contrast medicament:
15% efficient fluazifop missible oil (commercially available), 40 grams per liter quizalofopPtefuryl missible oil (commercially available).
For studying thing: soybean
Large bean seedlings grow fine, and robust plant is without other damage by disease and insect.
Prevent and kill off object:
The annual gramineous weeds such as barnyard grass, wild oat, green foxtail, lady's-grass, eleusine indica, amur foxtail.
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 (consumption is the consumption of every mu of ground active ingredient).In addition, also behind medicine, observe the condition of production of crop in 1～15d, to investigate medicament whether crop is had poisoning.
Embodiments of the invention preparation weeding test effect see the following form 2 (20d behind the medicine) and table 3 (40d behind the medicine).
Table 2 field control effectiveness test result (20d behind the medicine)
| Treatment agent | Consumption (ga.i/ mu) | Eleusine indica (%) | Green foxtail (%) | Other (%) |
| Embodiment 1 | 3.5 | 95 | 98 | 95 |
| Embodiment 2 | 3.5 | 96 | 95 | 97 |
| Embodiment 3 | 3.5 | 93 | 94 | 95 |
| Embodiment 4 | 3.5 | 97 | 93 | 96 |
| 15% efficient fluazifop EC | 6 | 88 | 86 | 87 |
| 40 grams per liter quizalofopPtefuryl missible oil | 3.5 | 82 | 84 | 83 |
Table 3 field control effectiveness test result (40d behind the medicine)
| Treatment agent | Consumption (ga.i/ mu) | Eleusine indica (%) | Green foxtail (%) | Other (%) |
| Embodiment 1 | 3.5 | 90 | 95 | 92 |
| Embodiment 2 | 3.5 | 91 | 93 | 91 |
| Embodiment 3 | 3.5 | 91 | 92 | 92 |
| Embodiment 4 | 3.5 | 94 | 90 | 93 |
| 15% efficient fluazifop EC | 6 | 80 | 79 | 79 |
| 40 grams per liter quizalofopPtefuryl missible oil | 3.5 | 75 | 80 | 78 |
Can find out on table 2 and table 3, Herbicidal combinations of the present invention has raising to the grassy weed preventive effect, prolongs the effect of lasting period.
Table 4 medicament is to the security survey result of crop
Each soybean of processing in the residential quarter grows fine, and has no any medicine spot, illustrates that various medicaments are to the equal safety of soybean.
Claims (5)
1. Herbicidal combinations that contains efficient fluazifop and quizalofopPtefuryl, it is characterized in that this Herbicidal combinations is take efficient fluazifop and quizalofopPtefuryl as main active ingredient, wherein, the mass ratio of efficient fluazifop and quizalofopPtefuryl is 1～10: 2～30, and the two quality percentage composition in Herbicidal combinations of efficient fluazifop and quizalofopPtefuryl is 10～75%.
2. Herbicidal combinations according to claim 1 is characterized in that the auxiliary agent that allows on it is take efficient fluazifop and quizalofopPtefuryl as main active ingredient and agricultural chemicals is mixed with any one formulation.
3. Herbicidal combinations according to claim 2 is characterized in that described formulation is missible oil, suspending agent, aqueous emulsion, microemulsion, water dispersion granule or wetting powder.
4. Herbicidal combinations claimed in claim 1 is for the preparation of the application in the weed killer herbicide of Soybean Field postemergence weed control.
5. application according to claim 4 is characterized in that described Herbicidal combinations is for the preparation of the application in the weed killer herbicide of preventing and kill off grassy weed in the Soybean Field.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910036184 CN102027930B (en) | 2009-09-28 | 2009-09-28 | Weeding composition containing fluazifop-p-butyl and quizalofop-p-tefuryl and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910036184 CN102027930B (en) | 2009-09-28 | 2009-09-28 | Weeding composition containing fluazifop-p-butyl and quizalofop-p-tefuryl and application thereof |
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| CN102027930A CN102027930A (en) | 2011-04-27 |
| CN102027930B true CN102027930B (en) | 2013-01-23 |
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