CN104396995B - A kind of mixed herbicide containing flazasulfuron, bensulfuron-methyl and trefanocide - Google Patents
A kind of mixed herbicide containing flazasulfuron, bensulfuron-methyl and trefanocide Download PDFInfo
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- CN104396995B CN104396995B CN201410715456.6A CN201410715456A CN104396995B CN 104396995 B CN104396995 B CN 104396995B CN 201410715456 A CN201410715456 A CN 201410715456A CN 104396995 B CN104396995 B CN 104396995B
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Abstract
The invention discloses a kind of mixed herbicide containing flazasulfuron, bensulfuron-methyl and trefanocide, this herbicide is with flazasulfuron, bensulfuron-methyl and trefanocide for principle active component, wherein, the mass ratio of flazasulfuron, bensulfuron-methyl and trefanocide is 0.1～80:0.1～80:0.1～80.Weeding before present invention can apply to lawn Seedling, after Seedling, is particularly applied in Weeds in Turf various grass family, Cyperaceae and broad leaved weed, 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, bensulfuron-methyl mixes built agent with the ternary of trefanocide, before this herbicidal composition can be applicable to lawn Seedling, postemergence weed control.
Background technology
Along with the quickening of Urbanization in China, the lifting of urban afforestation standard and increasing substantially of urban size, 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 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 Lawn Industry of China has large development, but not yet forms complete integrated industrial system.Lawn is beautified and is improved in China's urban construction, living environment in the spiritual civilization level of the people and plays key player, and it not only has significantly high 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, causing substantial amounts of fund to waste, so research turf management technology, especially Kill weeds technology is 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 reducing 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 later 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 causes, reducing labor intensity, simultaneously also because chemical weed control is convenient, quick-acting, it is long to control the time, chemical weed control is accepted by people gradually.
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.The main reaction suppressing to produce 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 recklessly appropriate, Cerastium caespitosum Gilib., Herba Oxalidis Corniculatae, Herba Viciae Hirsutae, pale reddish brown order 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, then downright bad gradually and to spread to 20-30 days weeds of whole plant thoroughly 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, without influence on the normal growth on lawn, turfgrass safety is high.Use at lawn rest period, without influence on germination in the future and growth.It is widely used in greening lawn, golf course etc..
Bensulfuron-methyl (bensulfuronmethyl); it is again Nongdeshi; it is the sulfonylurea herbicide developed by E.I.Du Pont Company, chemical name: α-{ [(4,6-dimethoxypyridin-α-Ji) amino carbonyl amino] sulfonvlmethvl } essence of Niobe.Its structural representation is as follows:
Bensulfuron-methyl is selectivity inner-adsorption conduction-type herbicide.Effective ingredient can spread rapidly in water, absorbs, for weeds root and blade, each portion of weeds that transfers to, hindered aminoacid, lysine, isoleucine biosynthesis, stop division and the growth of cell.Susceptible weeds GF is obstructed, tender tissue too early turn to be yellow suppression leaf portion growth, hinder root growth and downright bad.Using method is flexible, can use pesticide-clay mixture, mispickel, spraying, sprinkles methods such as watering.In soil, mobility is little, and temperature, soil property are little on the impact of its herbicidal effect.Can effectively prevent and treat life in 1 year and perennial broadleaf weed and dried tuber, can be absorbed by weeds root, leaf and pass to other positions.It is mainly used in preventing and kill off broad leaved weed and sedge weed such as Herba monochoriae vaginalis, Herba potamogetonis distincti, mexicana, Herba stellariae mediae, Monochoria korsakowii, Herba Cyperi Difformis, Herba Cyperi Glomerati, cyperus iria, Herba Portulacae etc..To grassy weed weak effect.
Trefanocide (Trifluralin), is the phenyl amines herbicide developed by Dow AgroSciences.Chemical name: 2,6-dinitro-N, N-diη-propyl-4-5-trifluoromethylaniline.Its structural formula is as follows:
It it is processing soil treatment agent before selectivity bud, it is suppressed that microtubule system.Trefanocide be by weed seed at germinating growth through absorbed in soil layer process, mainly the hypocotyl of quilt and the bud scale of grass, broad leaved plant absorbs, and cotyledon and young root also can absorb, but seldom to bud and the conduction of other organs after absorbing.After emerging, the stem of plant and leaf can not absorb.Enter the generation or transmission that affect hormone in plant and cause that it is dead.Mainly prevent and kill off grassy weed and the broad leaved weed of part small-sized seed, such as barnyard grass, Herba Digitariae, Herba Eleusines Indicae, Semen Euphorbiae, eragrostis cilianensisLink, annual bluegrass, Herba bromi japonici, hard grass, caput grass, Herba Amaranthi tricoloris, Herba chenopodii, Herba Portulacae, Herba stellariae mediae, knotweed, storage, Fructus Tribuli etc..Lasting period is long.Photodissociation volatile, easy, aqueous solvent are minimum, not easily move in soil layer.
Current lawn herbicide is limit by safety, herbicide spectrum is also 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, bensulfuron-methyl and trefanocide.
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 herbicide spectrum difference, it is made into mixture after the flazasulfuron of pluses and minuses complementation, bensulfuron-methyl and three kinds of suitable decrements of herbicide of trefanocide to use, so both expand herbicide spectrum, significantly improve herbicidal effect, it also avoid the probability that lawn is produced poisoning and residual hazard.The present invention specifically adopts the following technical scheme that
A kind of mixed herbicide containing flazasulfuron, bensulfuron-methyl and trefanocide, this herbicide is with flazasulfuron, bensulfuron-methyl and trefanocide for principle active component, wherein, the mass ratio of flazasulfuron, bensulfuron-methyl and trefanocide is 0.1～80:0.1～80:0.1～80.
In this mixed herbicide, the mass ratio of flazasulfuron, bensulfuron-methyl and trefanocide is preferably 1～70:1～60:1～60.The mass ratio of flazasulfuron, bensulfuron-methyl and trefanocide more preferably 1～5:1～60:1～25.
In a kind of technical scheme, the mass ratio of flazasulfuron, bensulfuron-methyl and trefanocide is preferably 1～5:1～5:1～25.
In another kind of technical scheme, the mass ratio of flazasulfuron, bensulfuron-methyl and trefanocide is 1:1:18 or 3:2:25 or 5:4:1 or 3:60:2.
In mixed herbicide of the present invention, flazasulfuron, bensulfuron-methyl and trefanocide three weight/mass percentage composition in herbicide are 1～85%, it is preferable that weight/mass percentage composition is 15～80%, it is most preferred that weight/mass percentage composition is 10～65%.
In the ternary built preparation of the flazasulfuron of the present invention, bensulfuron-methyl and trefanocide, except the effective ingredient such as flazasulfuron, bensulfuron-methyl and trefanocide, 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, is particularly applied in Weeds in Turf various grass family, Cyperaceae and broad leaved weed, and effect is notable.
The herbicidal composition of the present invention has the advantage that
1, Synergistic, activity of weeding are high.Flazasulfuron is inhibitor of acetolactate synthetase.Absorb mainly through root and stem and be sent to separate living tissue by conducting tissue, it is suppressed that the biosynthesis of branched-chain amino acid (such as serine, isoleucine).Bensulfuron-methyl is selectivity inner-adsorption conduction-type herbicide, and effective ingredient can spread rapidly in water, absorbs and transfer to each portion of weeds for weeds root and blade, hindered aminoacid, lysine, isoleucine biosynthesis, stop division and the growth of cell.Trefanocide mainly suppresses microtubule system, by weed seed at germinating growth through absorbed in soil layer process.It is to say, the herbicidal composition of the present invention can kill weeds by three kinds of different approaches, produce higher synergistic function, it is possible to be greatly enhanced the removing activity of herbicide.
2, herbicidal spectrum is wide, and the lasting period is long.After flazasulfuron, bensulfuron-methyl mix with trefanocide three, action compensating, herbicidal spectrum is wider, is additionally, since flazasulfuron, bensulfuron-methyl mainly that broad leaved weed and sedge weed is effective, and can spread pesticide-clay mixture or spraying；Trefanocide is processing soil treatment agent before selectivity bud, it is suppressed that microtubule system.Mainly prevent and kill off grassy weed and the broad leaved weed of part small-sized seed.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.Easily sulfonylurea herbicide is produced due to weeds resistance, and containing phenyl amines herbicide trifluralin in the herbicide of the present invention, enables medicament effectively anti-except the weeds of anti-sulfonylurea, additionally, 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, under the premise that 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.
Specific embodiments
Embodiment 1
Flazasulfuron 1%, bensulfuron-methyl 1%, trefanocide 18%, alkylphenol polyoxyethylene 4%, polyoxyethylene polyoxy propylene block compound 5%, thickening agent 2%, vegetable oil is to 100%, and formulation method conventionally is configured to the suspending agent that weight/mass percentage composition is 20%.
Embodiment 2
Flazasulfuron 3%, bensulfuron-methyl 2%, trefanocide 25%, NN0 (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, alkylphenol polyoxyethylene 5%, sodium lignin sulfonate is to 100%, and formulation method conventionally is configured to the suspending agent that weight/mass percentage composition is 30%.
Embodiment 3
Flazasulfuron 5%, bensulfuron-methyl 4%, trefanocide 1%, sodium lignin sulfonate 7%, dodecylbenzene sodium sulfonate 5%, ammonium sulfate 5%, kieselguhr supplies 100%, and formulation method conventionally is configured to the water dispersion granule that weight/mass percentage composition is 10%.
Embodiment 4
Flazasulfuron 3%, bensulfuron-methyl 60%, trefanocide 2%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 5%, white carbon 9%, Kaolin supplies 100%, and formulation method conventionally is configured to the wettable powder that weight/mass percentage composition is 65%.
Embodiment 5
Flazasulfuron 70%, bensulfuron-methyl 5%, trefanocide 5%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, sodium lignin sulfonate 4%, white carbon 5%, Kaolin supplies 100%, and formulation method conventionally is configured to the wettable powder that weight/mass percentage composition is 80%.
Embodiment 6
Flazasulfuron 10%, bensulfuron-methyl 10%, trefanocide 60%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, alkylphenol polyoxyethylene 5%, sodium lignin sulfonate is to 100%, and formulation method conventionally is configured to 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 stellariae mediae.
Test method: be seeded in respectively in the Disposable paper cup of 9cm by the seed of quantitative Herba stellariae mediae, sows 10～15 seeds, cultivates, when Herba stellariae mediae 3～6 leaf phase, make to carry out on composition spray spraying process 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, by the method that the nineteen sixties such as Sun Yunpei propose, calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient is more than 120, it was shown that three kinds of active substance have synergism, and co-toxicity coefficient is more than 100, it was shown that three kinds of active substance have potentiation, and co-toxicity coefficient is less than 100, it was shown 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 composite both is 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), 10% bensulfuron-methyl wettable powder (commercially available), 48% trifluralin ec (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 medicament 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 the phenomenon not having drain spray, 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 medicament to whether lawn has poisoning.
Embodiments of the invention preparation Herbicidal Testing Trials effect is shown in table 2 below (after medicine 20d) and table 3 (after medicine 40d)
Table 2 field control effectiveness test result (after medicine 20d)
Table 3 field control effectiveness test result (after medicine 40d)
It can be seen that grassy weed, sedge weed and broad leaved weed are all had a significant preventive effect by the present invention 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 all safe to lawn.
Claims (7)
1. the mixed herbicide containing flazasulfuron, bensulfuron-methyl and trefanocide, it is characterized in that this herbicide is with flazasulfuron, bensulfuron-methyl and trefanocide for principle active component, the mass ratio of flazasulfuron, bensulfuron-methyl and trefanocide is 1:1:18 or 3:2:25 or 5:4:1 or 3:60:2.
2. the mixed herbicide containing flazasulfuron, bensulfuron-methyl and trefanocide according to claim 1, it is characterised in that flazasulfuron, bensulfuron-methyl and trefanocide three weight/mass percentage composition in herbicide are 1 ~ 85%.
3. the mixed herbicide containing flazasulfuron, bensulfuron-methyl and trefanocide according to claim 2, it is characterised in that flazasulfuron, bensulfuron-methyl and trefanocide three weight/mass percentage composition in herbicide are 10 ~ 65%.
4. the mixed herbicide containing flazasulfuron, bensulfuron-methyl and trefanocide according to claim 1, it is characterised in that this herbicide becomes any one dosage form with flazasulfuron, bensulfuron-methyl and trefanocide for auxiliary agent and the excipient allowed on principle active component and pesticide.
5. the mixed herbicide containing flazasulfuron, bensulfuron-methyl and trefanocide according to claim 4, it is characterised in that described dosage form is suspending agent, wettable powder, water dispersion granule, cream.
6. the application before the Seedling of lawn and/or in postemergence weed control of the mixed herbicide containing flazasulfuron, bensulfuron-methyl and trefanocide described in claim 1.
7. the application in various grass family, Cyperaceae and broad leaved weed in Weeds in Turf of the mixed herbicide containing flazasulfuron, bensulfuron-methyl and trefanocide described in claim 1.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101785468A (en) * | 2010-03-25 | 2010-07-28 | 江苏丰山集团有限公司 | Weeding composition |
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| JPH07179305A (en) * | 1993-12-21 | 1995-07-18 | Nissan Chem Ind Ltd | Herbicide composition |
| JP2012017319A (en) * | 2010-06-10 | 2012-01-26 | Ishihara Sangyo Kaisha Ltd | Herbicidal composition |
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| CN101785468A (en) * | 2010-03-25 | 2010-07-28 | 江苏丰山集团有限公司 | Weeding composition |
Non-Patent Citations (1)
| Title |
|---|
| 沈国辉.我国草坪杂草研究20年回顾与展望.《中国草学会草坪专业委员会第六届全国会员代表大学第九次学术研讨会论文汇编》.2004,第36-38页. * |
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