CN102027914B - Herbicide composition containing dithiopyr and fluroxypyr and application thereof - Google Patents
Herbicide composition containing dithiopyr and fluroxypyr and application thereof Download PDFInfo
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- CN102027914B CN102027914B CN 200910036160 CN200910036160A CN102027914B CN 102027914 B CN102027914 B CN 102027914B CN 200910036160 CN200910036160 CN 200910036160 CN 200910036160 A CN200910036160 A CN 200910036160A CN 102027914 B CN102027914 B CN 102027914B
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Abstract
The invention belongs to the field of pesticides, and discloses a herbicide composition containing dithiopyr and fluroxypyr and application thereof. In the herbicide composition, the dithiopyr and the fluroxypyr are taken as main active ingredients, wherein the mass ratio of the dithiopyr to the fluroxypyr is 1-80: 1-80, and the dithiopyr and the fluroxypyr account for 1 to 85 percent of the total mass of the herbicide composition. The herbicide composition can be used for preparing a herbicide for controlling post-emergence weeds in a lawn, has an obvious effect when used for preparing herbicide for controlling pre-emergency weeds in a planted lawn, and is particularly suitable for preparing herbicide for controlling tall fescue and bluegrass in a lawn. Compared with a single-composition herbicide, the herbicide composition postpones the resistance of weeds, has a broad herbicide spectrum and acts for a long time on the premise of improving herbicide effect, and is safe for the lawns and the succeeding crops.
Description
Technical field
The invention belongs to pesticide field, relate to a kind of Herbicidal combinations, be specifically related to a kind of sulfur contained quarry grass calmly and Herbicidal combinations and the application thereof of fluroxypyr.
Technical background
In lawn construction, a problem can not be ignored is heavily to plant light supporting, and especially the harm of weeds is on the rise, and makes lawn changed beyond recognition.Turf weed is not only the harm on lawn and is won honour for, strives fertilizer with lawn, strives space, and the effect on desalination lawn, reduces the aesthetic values on lawn.The lawn plant that is injured shows as individual very thin, fragile, and cold-resistant, drought-enduring, anti-trample reduction makes lawn easily degenerate and death, even causes farmland running to weeds.Therefore, in planting lawn, management of weeds is crucial.
The weeds on harm lawn are nothing more than following three classes: the one, and grassy weed, the 2nd, sedge weed, the 3rd, broad leaved weed.In these a few class weeds, grassy weed and sedge weed are referred to as again monocotyledon weed; Broad leaved weeds is called again broadleaf weed.The key that annual gramineous weed is prevented and kill off is prevented and kill off before rudiment, and the weed killer herbicide kind that the bud rear defence removes is few, and must be careful especially while spraying, in case the grass lawn is produced to poisoning.Perennial grassy weed be take and nourishes and generates as main, and the difficulty of preventing and kill off is large, in malignant weed growth in summer animated period, selects and executes or smear the high concentration steriland herbicide that interior suction conduction is strong, as good as the glyphosate texts.Dispenser period: plant and broadcast lawn at 4 leaves～5 leaf after dates; Sodding lawn should be in planting 7 days; The Cheng Ping lawn is at green returning of lawn before the phase.The bud pre-treatment of broadleaved herb, general combination is prevented and kill off grassy weed and is carried out simultaneously.
Therefore, select suitable weed killer herbicide, and correctly use these weed killer herbicides just to become to prevent and kill off the key link of these weeds, selective herbicide is generally all used after weeds emerge, it is the first-selection of lawn chemical weeding, be often 2 kinds～3 kinds and combine use, and do not use separately, but herbicide mixture also to be noted its activity of weeding and safety.
Dithiopyr (dithiopy), chemical name: S, S '-dimethyl-2-difluoromethyl-4-isobutyl group-6-5-flumethiazine-3, the 5-dithio formate, belong to picolinic acid class weed killer herbicide, is picolinic acid class weed killer herbicide.For rice field and Kill weeds, to use before 0.06kg (a.i.)/ha bud and to use with (1.5 leaf phases of barnyard grass) after 0.12kg (a.i.)/ha bud, can prevent and kill off the annual weed such as barnyard grass, Monochoria vaginalis, difformed galingale herb, mexicana, alisma canaliculatum.But can not prevent and kill off firefly Lin, Herba Cyperi Glomerati, Sagittaria pygmaea and wild arrowhead.The impact that the activity of weeding of this weed killer herbicide is not changed by environmental factor, to rice safety, but the lasting period reaches annual gramineous weed and some broad leaved weeds in the front Weeds in Turf of 80d. dithiopyr bud, also can prevent and kill off eleusine indica, chickweed, the root of Beijing euphorbia and other annual pernicious single, double cotyledon weeds.But, because the dithiopyr price comparison is expensive, the use cost of unit are is large, and to the anti-heterodyne of part broad leaved weed, therefore, many and other herbicide mixtures in use.
Fluroxypyr (Fluroxypyr Methyl), have another name called and control green bristlegrass spirit, fluorine grass calmly, a kind of pyridine fluoroacetic acid class weed killer herbicide, and the fluoro-pyridine of formal name used at school 4-amino-3.5-bis-chloro-6--2-fluoroacetic acid, belong to the inner sucting conduction type herbicide after seedling.Be absorbed by plants very soon after medicine, make sensitive plant the reaction of typical hormone herbicide occur, plant is lopsided, distortion, finally withered.The fluroxypyr effectively ground such as Weeds in Turf, wheat, barley, corn, grape, orchard, pasture, forest land is prevented and kill off broad leaved weed; As clearvers, volume stem knotweed, kitchen garden, black nightshade, field bindweed, knotweed, amaranth etc., to crop safety.But fluroxypyr is invalid to grassy weed, herbicide spectrum is limited, during use many with prevent and kill off the pharmacy mix of grassy weed.
Lawn herbicide is limit by crop safety at present, the herbicide spectrum is also limited, use separately a kind of weed killer herbicide single dose can not control completely effectively the generation of turf weed, moreover some weed killer herbicide is due to water-soluble large or the lasting period is oversize, consumption is excessive or the inhomogeneous residual hazard all easily caused peripheral flowers and crop or rear stubble flowers of dispenser.
Summary of the invention
The Herbicidal combinations that the purpose of this invention is to provide the fixed and fluroxypyr of a kind of sulfur contained quarry grass.
Another object of the present invention is to provide the application of this Herbicidal combinations in the weed killer herbicide for preparing the Weeds in Turf weeds.
The Herbicidal combinations of the fixed and fluroxypyr of a kind of sulfur contained quarry grass, is characterized in that it is main active ingredient that this Herbicidal combinations be take dithiopyr and fluroxypyr, and wherein the mass ratio of dithiopyr and fluroxypyr is 1～80: 1～80.Preferably the mass ratio of dithiopyr and fluroxypyr is 1～60: 1～60.
In Herbicidal combinations, the two gross mass percentage composition in Herbicidal combinations of dithiopyr and fluroxypyr is 1～85%, and preferably the gross mass percentage composition is 20～75%.
In the binary built preparation of dithiopyr of the present invention and fluroxypyr, except the active ingredients such as dithiopyr and fluroxypyr, 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 allowed on agricultural chemicals.Preferably be processed into missible oil, suspending agent, dry outstanding agent, water dispersion granule, wetting powder, aqueous emulsion etc.
Herbicidal combinations of the present invention, can be applicable to prepare the weed killer herbicides of weeds after the Weeds in Turf seedling, and before the bud of lawn planting is prevented and kill off in preparation, in the weed killer herbicide of weeds, application has remarkable result, is particularly useful for the weed killer herbicide that Festuca Arundinacea and annual bluegrass lawn are 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 is due to both activity of weeding complementations, and the weed killer herbicide effective ingredient consumption has reduced, but greatly improves the removing activity of weed killer herbicide.
2, herbicidal spectrum is wide, and the lasting period is long.Dithiopyr and fluroxypyr are all the broad spectrum weeding agent, and dithiopyr can be prevented and kill off not unearthed grassy weed and part broad leaved weed, and fluroxypyr can be prevented and kill off multiple annual or perennial broadleaf weed, and after both mix, herbicidal spectrum is wider.Dithiopyr has the front herbicidal effect of excellent bud, makes medicament have cauline leaf and processes and the soil treatment double action, and the lasting period of medicament is also long.
3, safe.Because the use content of various active ingredients has reduced, make medicament under the prerequisite that has improved drug effect, also avoided peripheral flowers or done the deposits yields poisoning and rear stubble lawn or flowers are produced to the possibility of residual hazard.
Embodiment
Embodiment 1
Dithiopyr 20%, fluroxypyr 10%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, neopelex 4%, alkylphenol polyoxyethylene 3%, xanthans 2%, water supplies 100%, according to conventional formulation method, is mixed with the suspending agent that active ingredient gross mass percentage composition is 30%.
Embodiment 2
Dithiopyr 30%, fluroxypyr 15%, calcium dodecyl benzene sulfonate 4%, the rare block compound 5% of polyoxyethylene polyoxy third, solvent naphtha supplies 100%, according to conventional formulation method, is mixed with the missible oil that active ingredient gross mass percentage composition is 45%.
Embodiment 3
Dithiopyr 55%, fluroxypyr 20%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, according to conventional formulation method, is mixed with the water dispersion granule that active ingredient gross mass percentage composition is 75%.
Embodiment 4
Dithiopyr 35%, fluroxypyr 15%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 4%, white carbon 9%, kaolin supplies 100%, according to conventional formulation method, is mixed with the wetting powder that active ingredient gross mass percentage composition is 50%.
Embodiment 5
Dithiopyr 15%, fluroxypyr 60%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 4%, white carbon 9%, kaolin supplies 100%, according to conventional formulation method, is mixed with the wetting powder that active ingredient gross mass percentage composition is 75%.
Embodiment 6
Dithiopyr 60%, fluroxypyr 15%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 4%, white carbon 9%, kaolin supplies 100%, according to conventional formulation method, is mixed with the wetting powder that active ingredient gross mass percentage composition is 75%.
Embodiment 7
Dithiopyr 1%, fluroxypyr 19%, calcium dodecyl benzene sulfonate 4%, the rare block compound 5% of polyoxyethylene polyoxy third, dimethylbenzene 20%, water supplies 100%, according to conventional formulation method, is mixed with the aqueous emulsion that active ingredient gross mass percentage composition is 20%.
Embodiment 8
Dithiopyr 24%, fluroxypyr 1%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, the rare block compound 5% of polyoxyethylene polyoxy third, sodium lignin sulfonate 100%, be mixed with according to conventional formulation method the dry suspending agent that active ingredient gross mass percentage composition is 25%.
Embodiment 9
1), toxicity determination test
Utilize the preparation in embodiment 1～4, measure its co-toxicity coefficient to acalypha copperleaf.
Test method: the seed of quantitative acalypha copperleaf is seeded in respectively in the Disposable paper cup of 9cm, sows 10～15 seeds in every glass, cultivate in illumination box, until acalypha copperleaf 3～6 leaves, during the phase, in crawler type, do on composition spray the processing of spraying.After processing, in greenhouse, continue to cultivate, each processes the 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 is greater than 100, shows that two kinds of active principles have synergistic effect, and 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 all is greater than 100, 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.
The contrast medicament:
20% fluroxypyr EC (commercially available), 32% dithiopyr EC (agriculture of LG-DOW benefit).
For studying thing: Festuca Arundinacea and annual bluegrass lawn
Prevent and kill off object:
The lawn advantage weeds such as barnyard grass, lady's-grass, green foxtail, acalypha copperleaf, chickweed.
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 experimental plot the 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 after medicine, in 1～15d, observe the condition of production of crop, to investigate medicament, whether crop be had to poisoning.
Embodiments of the invention preparation weeding test effect see the following form 2 (20d after medicine) and table 3 (40d after medicine), medicament the results are shown in Table 4 to the security survey on lawn.
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 | 15 | 85 | 91 | 94 |
| Embodiment 2 | 15 | 89 | 94 | 91 |
| Embodiment 3 | 15 | 91 | 92 | 90 |
| Embodiment 4 | 15 | 90 | 92 | 92 |
| 20% fluroxypyr EC | 15 | - | 87 | 50 |
| 32% dithiopyr EC | 30 | 89 | 70 | 88 |
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 | 15 | 80 | 81 | 80 |
| Embodiment 2 | 15 | 82 | 84 | 83 |
| Embodiment 3 | 15 | 81 | 82 | 82 |
| Embodiment 4 | 15 | 80 | 82 | 81 |
| 20% fluroxypyr EC | 15 | - | 67 | 30 |
| 32% dithiopyr EC | 30 | 69 | 70 | 70 |
Consumption in table 2 and table 3 all refers to the consumption of active ingredient in each preparation.
From table 2 and table 3, can find out, 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 lawn
Each is processed Nei lawn, community and grows fine, and has no any medicine spot, illustrates that various medicaments are to the equal safety in lawn.
Claims (4)
1. the Herbicidal combinations of the fixed and fluroxypyr of sulfur contained quarry grass, it is characterized in that it is main active ingredient that this Herbicidal combinations be take dithiopyr and fluroxypyr, and prepare by the following method: dithiopyr 20%, fluroxypyr 10%, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 5%, neopelex 4%, alkylphenol polyoxyethylene 3%, xanthans 2%, water supplies 100%, according to conventional formulation method, is mixed with the suspending agent that active ingredient gross mass percentage composition is 30%.
2. the Herbicidal combinations of the fixed and fluroxypyr of sulfur contained quarry grass, it is characterized in that it is main active ingredient that this Herbicidal combinations be take dithiopyr and fluroxypyr, and prepare by the following method: dithiopyr 30%, fluroxypyr 15%, calcium dodecyl benzene sulfonate 4%, the rare block compound 5% of polyoxyethylene polyoxy third, solvent naphtha supplies 100%, according to conventional formulation method, is mixed with the missible oil that active ingredient gross mass percentage composition is 45%.
3. the Herbicidal combinations of the fixed and fluroxypyr of sulfur contained quarry grass, it is characterized in that it is main active ingredient that this Herbicidal combinations be take dithiopyr and fluroxypyr, and prepare by the following method: dithiopyr 55%, fluroxypyr 20%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, according to conventional formulation method, is mixed with the water dispersion granule that active ingredient gross mass percentage composition is 75%.
4. the Herbicidal combinations of the fixed and fluroxypyr of sulfur contained quarry grass, it is characterized in that it is main active ingredient that this Herbicidal combinations be take dithiopyr and fluroxypyr, and prepare by the following method: dithiopyr 35%, fluroxypyr 15%, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 6%, sodium lignin sulfonate 4%, white carbon 9%, kaolin supplies 100%, according to conventional formulation method, is mixed with the wetting powder that active ingredient gross mass percentage composition is 50%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910036160 CN102027914B (en) | 2009-09-28 | 2009-09-28 | Herbicide composition containing dithiopyr and fluroxypyr and application thereof |
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| CN 200910036160 CN102027914B (en) | 2009-09-28 | 2009-09-28 | Herbicide composition containing dithiopyr and fluroxypyr and application thereof |
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| CN102893992A (en) * | 2012-10-29 | 2013-01-30 | 南通嘉禾化工有限公司 | Weeding suspending agent and preparation process thereof |
| CN104488937A (en) * | 2014-11-30 | 2015-04-08 | 南京华洲药业有限公司 | Mixed herbicide containing flazasulfuron, fluroxypyr and dithiopyr |
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Non-Patent Citations (4)
| Title |
|---|
| M.Fujiyama等,1.新除草剂氟硫草定(Dithiopyr).《农药》.1991,第30卷(第01期), |
| 新除草剂氟硫草定(Dithiopyr);M.Fujiyama等,1;《农药》;19910125;第30卷(第01期);45-46 * |
| 聂莉等,1.草坪杂草化学除草试验研究.《贵州农业科学》.2008,第36卷(第01期), |
| 草坪杂草化学除草试验研究;聂莉等,1;《贵州农业科学》;20080215;第36卷(第01期);100-101 * |
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