CN104430455B - A kind of mixed herbicide containing flazasulfuron, dithiopyr and Flumetsulam - Google Patents
A kind of mixed herbicide containing flazasulfuron, dithiopyr and Flumetsulam Download PDFInfo
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- CN104430455B CN104430455B CN201410714694.5A CN201410714694A CN104430455B CN 104430455 B CN104430455 B CN 104430455B CN 201410714694 A CN201410714694 A CN 201410714694A CN 104430455 B CN104430455 B CN 104430455B
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Abstract
The invention discloses a kind of mixed herbicide containing flazasulfuron, dithiopyr and Flumetsulam, this herbicide is with flazasulfuron, dithiopyr and Flumetsulam as principle active component, wherein, flazasulfuron, dithiopyr are 0.1～80:0.1～80:0.1～80 with the mass ratio of Flumetsulam.Weeding before present invention can apply to lawn Seedling, after Seedling, particularly applies various grass family, Cyperaceae and broad leaved weed in Weeds in Turf, and effect is notable.The present invention has higher synergistic function, delays Weed Resistance, and herbicidal spectrum is wide, and the lasting period is long, and lawn is had safety, and its effect uses apparently higher than single dose.
Description
Technical field
The invention belongs to technical field of pesticide, relate to a kind of herbicide, be specifically related to a kind of flazasulfuron, dithiopyr mixes built agent with the ternary of Flumetsulam, before this herbicidal composition can be applicable to lawn Seedling, postemergence weed control.
Background technology
Along with the increasing substantially of quickening, the lifting of urban afforestation standard and urban size of Urbanization in China, arising at the historic moment in various lawns, has caused the great demand to lawn, and Development of Turf has good business opportunity.Firm, the aesthetic in infrastructure such as guarantee highway, railway, airport, reservoir, riverbank, Hu Di, lawn is important auxiliary equipment；In terms of urban construction, afforestation, lawn can be substantially improved living environment, effectively reduce " tropical island effect " in city.The area of green grassland, quality reflect The Surroundings in Cities quality and civilization degree.The city of some developed countries such as U.S., European Union especially using Lawn Industry as this country's one of pillar industry.At present, the existing large development of the Lawn Industry of China, but not yet form complete integrated industrial system.Lawn plays key player in China's urban construction, living environment beautify and improve the spiritual civilization level of the people, and it not only has the highest economic benefit, and has huge ecological benefits and social benefit.
But, owing to operation and management is improper, there is Quality Down in a lot of lawns, the problems such as turfgrass is dead, weedy, pest and disease damage occur again and again, the serious use value reducing lawn and landscape value, substantial amounts of fund is caused to waste, so research turf management technology, especially Kill weeds technology are to change lawn present situation and improve the important measures of ecological environment.
Artificial weeding, throwing work is big, weeding is thorough, has the disadvantage trampleing on lawn, thus reduces turf quality.Some places have to change lawn, costly.Chemical weed control saving of work and time, low-cost high-efficiency, later stage weeds generating capacity is few, this be artificial uprooting weed do not caned than.And chemical weed control also has sealing process, the weeds newly gone out want much less.Chemical weed control is few to lawn interference, provides rational environment for Turfgrass Growth.Weeding expense is low, and an expense is the l/3-l/4 of labour cost, and the expense of a year is the 1/4-1/5 of labour cost.Labor intensity is low, and a people can spray 7-9 mu lawn every day, and machine nebulization efficiency is higher, has large area weeding advantage.In order to reduce the economic loss that crop smothering is caused, reducing labor intensity, the most also because chemical weed control is convenient, quick-acting, it is long to control the time, chemical weed control is the most gradually accepted by people.
Flazasulfuron (flazasulfuron), is the sulfonylurea herbicide being originated in the exploitation of industry chemical company by Japan's stone.Chemical name 1-(4,6-dimethoxypyridin-2-base)-3-(3-trifluoromethyl-2-pyridine sulfonyl sulfonyl) urea, its structural representation is as follows:
Flazasulfuron is acetolactate synthestase (ALS) inhibitor.Main suppression produces the reaction of the predecessor acetolactate synthestase of side chain amino acid, leucine, isoleucine and valine.This medicament broad weed-killing spectrum, annual broad-leaved and grassy weed in Weeds in Turf that can not only be fabulous, and perennial broadleaf weed and sedge weed can also be prevented and kill off, such as Herba Digitariae, barnyard grass, Herba Eleusines Indicae, annual bluegrass, amur foxtail, Herba Setariae Viridis, Rhizoma Cyperi, Herba Kyllingae, cyperus iria, Herba Cyperi Difformis, Alternanthera philoxeroides, Conyza canadensis (L.) Cronq., T.repens, it is the most appropriate, Cerastium caespitosum Gilib., Herba Oxalidis Corniculatae, Herba Viciae Hirsutae, pale reddish brown mesh place, Herba Kummerowiae Striatae, pale persicaria, Radix Rumicis Japonici, class Radix seu Caulis Parthenocissi tricuspidatae, Big Semen Plantaginis, Radix Artemisia ordosicae, Herba Malvastri Coromandeliani, green Herba Amaranthi tricoloris, Herba Capsellae, Herba Lamii Amplexicaulis, common vetch, Herba stellariae mediae etc., to short leaf Herba Kyllingae, Herba Digitariae and Rhizoma Cyperi preventive effect are splendid.
Generally, after process, weeds stop growing immediately, the leaf chlorisis newly sent after absorbing 4-5 days, the most downright bad and to spread to 20-30 days weeds of whole plant the most withered.This medicament can be absorbed by weeds stem and leaf, can suppress again suppressing weed seed germination in soil, controls the time longer, and the lasting period is about more than 40 days in spring and summer, and autumn and winter is more than 120 days.
Flazasulfuron is the herbicides special that first, China is formally registered on warm-season turf (Korea lawn grass class and Bermuda grass class).Medicament can be decomposed, be converted into innocuous substance rapidly after contacting medicament with Bermuda grass class turfgrass by Korea lawn grass, does not interferes with the normal growth on lawn, high to turfgrass safety.Use at lawn rest period, do not interfere with germination in the future and growth.It is widely used in greening lawn, golf course etc..
Dithiopyr (dithiopyr), is by Monsanto Company's development, the pyridines herbicide of Rhom and Hass's exploitation.Chemical name: 2-difluoromethyl-4-isobutyl group-6-trifluoromethyl-3,5-pyridine dithiocarbonic acid dimethyl ester.Its structural formula is as follows:
Dithiopyr is picolinic acid class preemergence herbicide, and activity of weeding is not changed by environmental factors to be affected, and the lasting period was up to 80 days.The annual grassy weeds such as barnyard grass, Herba Setariae Viridis, Herba monochoriae vaginalis, Herba Cyperi Difformis, mexicana, alisma canaliculatum can be prevented and kill off.Using before the bud of lawn, consumption is 0.36-0.50kg/hm2, can prevent and kill off a liter Herba Digitariae, digitaria violascens Link, etc. the annual broadleaf weed such as annual gramineous weed and ball sequence grasswort, Bulbilus dioscoreae Herba hylotelephii erythrosticti, gland paint mushroom grass.
Flumetsulam (Flumetsulam), the triazolopyrimidine sulfonamides herbicide of Shi You road agricultural sciences (Dow Agroscience) company exploitation.Chemical name: 2', 6'-bis-fluoro-5-methyl (1,2,4)-triazol (1,5-a) pyrimidine its structural representation of-2-sulfonanilide is as follows:
Flumetsulam is typical inhibitor of acetolactate synthetase.Making protein synthesis be obstructed by the synthesis of suppression branched-chain amino acid, plant stops growing, finally dead.Flumetsulam has the strongest Uptake and translocation, starts to damage symptoms occur from plant absorption medicament until Plant death is one compares process slowly.Weeds absorb the symptom after medicament: in blade, arteries and veins chlorosis, vein and blade tip fade, by lobus cardiacus HUANGBAI(sic), purpleization, internode shorten, terminal bud death, the death of final Herb.
Flumetsulam is a kind of broad spectrum weeding agent.Longevity of residure length, broad weed-killing spectrum, soil, stem and leaf process.Most of annual and perennial broadleaf weed can be prevented and kill off, children grassy weed in age also there is inhibitory action, as Herba Abutili, Herba chenopodii, Herba stellariae mediae, tattooing are harvested, Herba Galii Teneri, Mandala, Amaranthus retroflexus, pineapple weed, the preventive effect such as corn radish excellent, to knotweed, Fructus Kochiae, Herba Solani Nigri, Herba lamii barbati, Herba veronicae, the multiple cruciferous weeds such as Herba hibisci trioni, Herba Xanthii and elegance and talent dish, Thalaspi arvense L. also have significant preventive effect, and Herba Setariae Viridis, Chufa are had good activity.
Lawn herbicide is limited by safety at present, weed control spectrum is the most limited, it is used alone a kind of herbicide single dose and can not control the generation of turf weed completely effectively, furthermore some herbicide all easily causes residual hazard owing to water solublity is big or the field lasting period is oversize, consumption is excessive or dispenser is uneven.
Summary of the invention
It is an object of the invention to provide a kind of mixed herbicide containing flazasulfuron, dithiopyr and Flumetsulam.
It is a further object of the present invention to provide the application in Kill weeds of this herbicide.
For reaching above-mentioned purpose, the present invention selects weed control spectrum different, it is made into mixture after flazasulfuron, dithiopyr and three kinds of suitable decrements of herbicide of Flumetsulam that pluses and minuses are complementary to use, the most both weed control spectrum had been expanded, significantly improve herbicidal effect, it also avoid and lawn is produced poisoning and the probability of residual hazard.The present invention specifically adopts the following technical scheme that
A kind of mixed herbicide containing flazasulfuron, dithiopyr and Flumetsulam, this herbicide is with flazasulfuron, dithiopyr and Flumetsulam as principle active component, wherein, flazasulfuron, dithiopyr are 0.1～80:0.1～80:0.1～80 with the mass ratio of Flumetsulam.
In this mixed herbicide, flazasulfuron, dithiopyr are preferably 1～70:1～60:1～60 with the mass ratio of Flumetsulam.The mass ratio of flazasulfuron, dithiopyr and Flumetsulam more preferably 1～5:1～60:1～25.
In a kind of technical scheme, flazasulfuron, dithiopyr are preferably 1～5:1～5:1～25 with the mass ratio of Flumetsulam.
In another kind of technical scheme, flazasulfuron, dithiopyr are 1:1:18 or 3:2:25 or 5:4:1 or 3:60:2 with the mass ratio of Flumetsulam.
In mixed herbicide of the present invention, flazasulfuron, dithiopyr and Flumetsulam three weight/mass percentage composition in herbicide are 1～85%, and preferred mass percentage composition is 15～80%, and most preferably weight/mass percentage composition is 10～65%.
In the ternary built preparation of the flazasulfuron of the present invention, dithiopyr and Flumetsulam, in addition to the effective ingredient such as flazasulfuron, dithiopyr and Flumetsulam, it is also possible to the auxiliary agents such as conventional surfactants, thickening agent, solvent or the solid packing allowed on interpolation pesticidal preparations and excipient become any one dosage form allowed on pesticide.Preferably it is processed into suspending agent, wettable powder, water dispersion granule, cream, microcapsule.
Weeding before present invention can apply to lawn Seedling, after Seedling, particularly applies various grass family, Cyperaceae and broad leaved weed in Weeds in Turf, and effect is notable.
The herbicidal composition of the present invention has the advantage that
1, Synergistic, activity of weeding height.Flazasulfuron and Flumetsulam are all inhibitor of acetolactate synthetase.Mainly absorbed by root and stem and be sent to separate living tissue, the biosynthesis of suppression branched-chain amino acid (such as serine, isoleucine) by conducting tissue.Dithiopyr is picolinic acid class preemergence herbicide, and activity of weeding is not changed by environmental factors to be affected, and the lasting period was up to 80 days.It is to say, the herbicidal composition of the present invention can kill weeds by different approaches, produce higher synergistic function, the removing activity of herbicide can be greatly enhanced.
2, herbicidal spectrum is wide, and the lasting period is long.After flazasulfuron, dithiopyr mix with Flumetsulam three, action compensating, herbicidal spectrum is wider, and flazasulfuron is mainly effective to broad leaved weed and sedge weed, and can spread pesticide-clay mixture or spraying；Dithiopyr can prevent and kill off grass family and part annual broadleaf weed.And Flumetsulam can prevent and kill off most of annual and perennial broadleaf weed, children grassy weed in age also being had inhibitory action, soil, stem and leaf process.So the herbicide of the present invention has the dual function in foliar treatment and feud, extend the lasting period of medicament.So the herbicide of the present invention has the dual function in foliar treatment and feud, extend the lasting period of medicament.
3, Weed Resistance is delayed.Owing to weeds easily produce resistance to sulfonylurea herbicide, and containing pyridines herbicide dithiopyr and triazolopyrimidine sulfonamides herbicide Flumetsulam in the herbicide of the present invention, enable medicament effectively anti-except the weeds of anti-sulfonylurea, in addition, reduce resistance weed, extend the service life of medicament.
4, safety is high.The herbicidal composition of the present invention, is applied to Kill weeds, its can various grass family, Cyperaceae and broad leaved weed in Weeds in Turf, on the premise of improve drug effect, lawn is had safety.
Therefore, mixed herbicide of the present invention can be applied in the herbicide prepare Kill weeds, particularly applies in various grass family, Cyperaceae and broad leaved weed in Weeds in Turf.
Detailed description of the invention
Embodiment 1
Flazasulfuron 1%, dithiopyr 1%, Flumetsulam 18%, alkylphenol polyoxyethylene 4%, polyoxyethylene polyoxy propylene block compound 5%, thickening agent 2%, vegetable oil, to 100%, is configured to, according to conventional formulation method, the suspending agent that weight/mass percentage composition is 20%.
Embodiment 2
Flazasulfuron 3%, dithiopyr 2%, Flumetsulam 25%, NN0 (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, alkylphenol polyoxyethylene 5%, sodium lignin sulfonate to 100%, it is configured to, according to conventional formulation method, the suspending agent that weight/mass percentage composition is 30%.
Embodiment 3
Flazasulfuron 5%, dithiopyr 4%, Flumetsulam 1%, sodium lignin sulfonate 7%, dodecylbenzene sodium sulfonate 5%, ammonium sulfate 5%, kieselguhr supplies 100%, is configured to, according to conventional formulation method, the water dispersion granule that weight/mass percentage composition is 10%.
Embodiment 4
Flazasulfuron 3%, dithiopyr 60%, Flumetsulam 2%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 5%, white carbon 9%, Kaolin supplies 100%, is configured to, according to conventional formulation method, the wettable powder that weight/mass percentage composition is 65%.
Embodiment 5
Flazasulfuron 70%, dithiopyr 5%, Flumetsulam 5%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, sodium lignin sulfonate 4%, white carbon 5%, Kaolin supplies 100%, is configured to, according to conventional formulation method, the wettable powder that weight/mass percentage composition is 80%.
Embodiment 6
Flazasulfuron 10%, dithiopyr 10%, Flumetsulam 60%, NN O (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, alkylphenol polyoxyethylene 5%, sodium lignin sulfonate to 100%, it is configured to, according to conventional formulation method, the cream that weight/mass percentage composition is 80%.
Embodiment 7
1), toxicity determination test
Utilize the preparation in embodiment 1～4, measure its co-toxicity coefficient to lawn common weed Herba Setariae Viridis.
Test method: be seeded in respectively in the Disposable paper cup of 9cm by the seed of quantitative Herba Setariae Viridis, sows 10～15 seeds, cultivates, when the 3～6 leaf phase of Herba Setariae Viridis, make to carry out on composition spray spraying treatment in crawler type in illumination box in every glass.Continuing in greenhouse after process to cultivate, routine observation respectively processes the preventive effect to weeds, weighs the weeds fresh weight after each process after 30d, the method proposed by nineteen sixties such as Sun Yunpei, calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient is more than 120, shows that three kinds of active substance have synergism, and co-toxicity coefficient is more than 100, shows that three kinds of active substance have potentiation, and co-toxicity coefficient is less than 100, shows that three kinds of active substance 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 three kinds of active substance are compounding is both greater than 120, illustrates that the present invention has obvious synergism and potentiation.
2), field control effectiveness test
Reagent agent:
4 kinds of ternary built herbicides in embodiment 1～4.
Comparison medicament:
25% flazasulfuron water dispersible granules (commercially available), 32% dithiopyr cream (commercially available), 80% Flumetsulam water dispersible granules (commercially available).
For examination lawn: Bermuda grass
Bermuda grass was 3～5 leaf phases, grew fine, robust plant, without other pest and disease damages.
Prevent and kill off object:
The lawn gesture weeds such as Rhizoma Alismatis, dried tuber, Herba Marsileae Quadrifoliae, Herba potamogetonis distincti, Rhizoma sagittariae sagittifoliae, Herba Cyperi Difformis, Herba stellariae mediae, Herba Digitariae, Herba Setariae Viridis, barnyard grass, Herba Eleusines Indicae.
Test method:
According to the area of experimental plot, the good various medicaments of precise, and after being watered dilution, utilize knapsack sprayer, carry out even spraying, the Fan spray head that sprinkler selection herbicide is special.During spraying, it should be noted that uniformly sprayed application in experimental plot by medicinal liquid, accomplish there is no drain spray, the phenomenon of many sprays.
After test, after medicine, 20d, 40d observe weeds death condition respectively, and compare the activity of weeding of various medicaments.Additionally, also to observe the growing state on lawn after medicine in 1～15d, to investigate whether medicament has poisoning to lawn.
Embodiments of the invention preparation Herbicidal Testing Trials effect see table 2 (20d after medicine) and table 3 (40d after medicine)
Table 2 field control effectiveness test result (20d after medicine)
Table 3 field control effectiveness test result (40d after medicine)
It can be seen that the present invention has a significant preventive effect to grassy weed, sedge weed and broad leaved weed from table 2 and table 3, building performance significantly, and the lasting period is long.
Table 4 medicament security survey result to lawn
Growing fine in each lawn processed in community, has no any medicine speckle, illustrate that various medicament is the safest to lawn.
Claims (5)
1. the mixed herbicide containing flazasulfuron, dithiopyr and Flumetsulam, it is characterized in that this herbicide with flazasulfuron, dithiopyr and Flumetsulam as principle active component, flazasulfuron, dithiopyr are 1:1:18 or 3:2:25 or 5:4:1 or 3:60:2 with the mass ratio of Flumetsulam；Flazasulfuron, dithiopyr and Flumetsulam three weight/mass percentage composition in herbicide are 15%.
Mixed herbicide containing flazasulfuron, dithiopyr and Flumetsulam the most according to claim 1, it is characterised in that auxiliary agent and excipient that it allows as principle active component with on pesticide with flazasulfuron, dithiopyr with Flumetsulam become any one dosage form.
3. according to the mixed herbicide containing flazasulfuron, dithiopyr and Flumetsulam described in claim 2, it is characterised in that described dosage form is suspending agent, wettable powder, water dispersion granule, cream.
4. the application before the Seedling of lawn and/or in postemergence weed control of the mixed herbicide containing flazasulfuron, dithiopyr and Flumetsulam described in claim 1.
5. the mixed herbicide application in various grass family, Cyperaceae and broad leaved weed in Weeds in Turf containing flazasulfuron, dithiopyr and Flumetsulam described in claim 1.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0764404A1 (en) * | 1995-09-21 | 1997-03-26 | Ishihara Sangyo Kaisha, Ltd. | Granular herbicidal composition |
| CN101578046A (en) * | 2006-12-11 | 2009-11-11 | 伊萨格罗股份公司 | Herbicidal compositions |
| CN104351234A (en) * | 2014-09-25 | 2015-02-18 | 南京华洲药业有限公司 | Mixed weedicide as well as preparation method and application thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0764404A1 (en) * | 1995-09-21 | 1997-03-26 | Ishihara Sangyo Kaisha, Ltd. | Granular herbicidal composition |
| CN101578046A (en) * | 2006-12-11 | 2009-11-11 | 伊萨格罗股份公司 | Herbicidal compositions |
| CN104351234A (en) * | 2014-09-25 | 2015-02-18 | 南京华洲药业有限公司 | Mixed weedicide as well as preparation method and application thereof |
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