CN105794822A - Mixed herbicide containing flazasulfuron, carfentrazone-ethyl and dithiopyr as well as applications thereof - Google Patents
Mixed herbicide containing flazasulfuron, carfentrazone-ethyl and dithiopyr as well as applications thereof Download PDFInfo
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- CN105794822A CN105794822A CN201410837924.7A CN201410837924A CN105794822A CN 105794822 A CN105794822 A CN 105794822A CN 201410837924 A CN201410837924 A CN 201410837924A CN 105794822 A CN105794822 A CN 105794822A
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- dithiopyr
- flazasulfuron
- herbicide
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Abstract
The invention discloses a mixed herbicide containing flazasulfuron, carfentrazone-ethyl and dithiopyr as well as applications thereof. Flazasulfuron, carfentrazone-ethyl and dithiopyr are used as main effective components, and the mass ratio of flazasulfuron, carfentrazone-ethyl and dithiopyr is 0.1-80:0.1-80:0.1-80. The application of the mixed herbicide to weeding in lawn, especially applications to controls of Gramineae weeds, Cyperaceae weeds and broad-leaf weeds in lawn have substantial effects. Compared with a mono-agent, the herbicide has improved drug effects, and has the advantages of delayed weed resistance, wide weeding spectrum, long persistent period, and safety for lawn.
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, carfentrazoneethyl mixes built agent with the ternary of dithiopyr, 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:
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..
Carfentrazoneethyl (carfentrazone-ethyl), it it is the triazolineone herbicide developed by FMC Corp., chemical name: chloro-3 (2-chloro-5-(the 4-difluoromethyls-4 of (RS)-2-, 5-dihydro-3-methyl-5-oxygen-1H-1,2,4-triazol-1-yl)-4-fluorophenyl) ethyl propionate, its structural representation is as follows:
Carfentrazoneethyl is triazolineone selectivity herbicide after seedling.Proporphyrinogen oxidase inhibitor, by suppressing proporphyrinogen oxidase in chlcrophyll biosynthesis process to destroy cell membrane, makes blade withered, dead rapidly.Namely carfentrazoneethyl is absorbed by plant leaf blade in 15 minutes after administration, and it is not drenched with rain affects, and after 3-4 hour, weeds occur as soon as poisoning symptom, and 2-4 days dead.Prevent and kill off broad leaved weed and dried tuber, as Herba Galii Teneri, Herba lamii barbati, Herba veronicae, Herba stellariae mediae, Herba Abutili, red heart Herba chenopodii, blank pipe lead a cow, Herba chenopodii, Amaranthus retroflexus, fruitlet Caulis et Folium Lini, Fructus Kochiae, pale persicaria, Herba Cyperi Difformis, Herba Lamii Amplexicaulis, Herba Solani Nigri, the weeds such as Caulis et Folium Sinapis albee.The weeds such as especially Herba Galii Teneri, Herba Abutili, red heart Herba chenopodii, blank pipe are led a cow have excellent preventive effect, and some weeds that sulfonylurea herbicide produces antibody have good activity.Recommend consumption 20-35g/hm2, water spray is processed.
Dithiopyr (dithiopyr), is by the pyridines herbicide of Monsanto Company's development, 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:
Being picolinic acid class preemergence herbicide, activity of weeding is not by the impact of environmental factors change, and the lasting period was up to 80 days.The annual grassy weeds such as barnyard grass, 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.
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.Therefore, the present invention selects herbicide spectrum difference, is made into mixture and uses after the flazasulfuron of pluses and minuses complementation, carfentrazoneethyl and three kinds of suitable decrements of herbicide of dithiopyr, so both expands herbicide spectrum, significantly improve herbicidal effect, it also avoid the probability that lawn is produced poisoning and residual hazard.
Summary of the invention
It is an object of the invention to provide a kind of mixed herbicide containing flazasulfuron, carfentrazoneethyl and dithiopyr.
It is a further object of the present invention to provide the application before the Seedling of lawn and/or in postemergence weed control of this herbicide.
A kind of mixed herbicide containing flazasulfuron, carfentrazoneethyl and dithiopyr, it is characterized in that this herbicide is with flazasulfuron, carfentrazoneethyl and dithiopyr for principle active component, the mass ratio of flazasulfuron, carfentrazoneethyl and dithiopyr is 0.1～80:0.1～80:0.1～80.The mass ratio of preferred flazasulfuron, carfentrazoneethyl and dithiopyr is 1～70:1～60:1～60, it is preferred that the mass ratio of flazasulfuron, carfentrazoneethyl and dithiopyr is 1～5:1～60:1～25, it is most preferred that the mass ratio of flazasulfuron, carfentrazoneethyl and dithiopyr is 1:1:18,3:2:25,5:4:1 or 3:60:2.
In mixed herbicide, flazasulfuron, carfentrazoneethyl and dithiopyr three weight/mass percentage composition in herbicide are 1～85%, it is preferable that weight/mass percentage composition is 10～80%, it is most preferred that weight/mass percentage composition is 10～65%.
In the ternary built preparation of the flazasulfuron of the present invention, carfentrazoneethyl and dithiopyr, except the effective ingredient such as flazasulfuron, carfentrazoneethyl and dithiopyr, it is also possible to add any one dosage form that the auxiliary agents such as the conventional surfactants, thickening agent, solvent or the solid packing that allow on pesticidal preparations are configured on pesticide to allow.Preferably it is processed into suspending agent, wettable powder, water dispersion granule, cream, microcapsule.
Mixed herbicide of the present invention can be applied before the Seedling of lawn and/or in postemergence weed control, and particularly in Weeds in Turf, in various grass family, Cyperaceae and broad leaved weed, application has remarkable result.
The herbicidal composition of the present invention has the advantage that
1, activity of weeding is 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).Carfentrazoneethyl proporphyrinogen oxidase inhibitor, by suppressing proporphyrinogen oxidase in chlcrophyll biosynthesis process to destroy cell membrane, makes blade withered, dead rapidly.Some weeds that sulfonylurea herbicide produces antibody have good activity.Dithiopyr is picolinic acid class preemergence herbicide, and activity of weeding is not by the impact of environmental factors change, and the lasting period was up to 80 days.It is to say, the herbicidal composition of the present invention can kill weeds by three kinds of different approaches, 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, carfentrazoneethyl mix with dithiopyr three, action compensating, herbicidal spectrum is wider, is additionally, since flazasulfuron mainly that broad leaved weed and sedge weed is effective, and can spread pesticide-clay mixture or spraying；And carfentrazoneethyl is mainly used in preventing and kill off broad leaved weed and sedge weed, foliage-spray.Dithiopyr can prevent and kill off grass family and part annual broadleaf weed.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 sulfonylurea herbicide is easily produced resistance by weeds, and containing triazolineone herbicide carfentrazoneethyl and pyridines herbicide dithiopyr 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, 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 the herbicide of various grass family, Cyperaceae and broad leaved weed in preparing Weeds in Turf.
Detailed description of the invention
Embodiment 1
Flazasulfuron 1%, carfentrazoneethyl 1%, dithiopyr 18%, alkylphenol polyoxyethylene 4%, polyoxyethylene polyoxy propylene block compound 5%, thickening agent 2%, vegetable oil adds to 100%, and formulation method conventionally is configured to the suspending agent that weight/mass percentage composition is 20%.
Embodiment 2
Flazasulfuron 3%, carfentrazoneethyl 2%, dithiopyr 25%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, alkylphenol polyoxyethylene 5%, sodium lignin sulfonate adds to 100%, and formulation method conventionally is configured to the suspending agent that weight/mass percentage composition is 30%.
Embodiment 3
Flazasulfuron 5%, carfentrazoneethyl 4%, dithiopyr 1%, sodium lignin sulfonate 7%, dodecylbenzene sodium sulfonate 5%, ammonium sulfate 5%, kieselguhr complements to 100%, and formulation method conventionally is configured to the water dispersion granule that weight/mass percentage composition is 10%.
Embodiment 4
Flazasulfuron 3%, carfentrazoneethyl 60%, dithiopyr 2%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 5%, white carbon 9%, Kaolin complements to 100%, and formulation method conventionally is configured to the wettable powder that weight/mass percentage composition is 65%.
Embodiment 5
Flazasulfuron 70%, carfentrazoneethyl 5%, dithiopyr 5%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, sodium lignin sulfonate 4%, white carbon 5%, Kaolin complements to 100%, and formulation method conventionally is configured to the wettable powder that weight/mass percentage composition is 80%.
Embodiment 6
Flazasulfuron 10%, carfentrazoneethyl 10%, dithiopyr 60%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, alkylphenol polyoxyethylene 5%, sodium lignin sulfonate adds 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 potentiation, and co-toxicity coefficient is less than 120, 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 100, illustrates that the present invention has obvious 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), 40% carfentrazoneethyl dry suspending agent (commercially available), 32% dithiopyr cream (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 (10)
1. the mixed herbicide containing flazasulfuron, carfentrazoneethyl and dithiopyr, it is characterized in that this herbicide is with flazasulfuron, carfentrazoneethyl and dithiopyr for principle active component, the mass ratio of flazasulfuron, carfentrazoneethyl and dithiopyr is 0.1～80:0.1～80:0.1～80.
2. the mixed herbicide containing flazasulfuron, carfentrazoneethyl and dithiopyr according to claim 1, it is characterised in that in this herbicide, the mass ratio of flazasulfuron, carfentrazoneethyl and dithiopyr is 1～70:1～60:1～60.
3. the mixed herbicide containing flazasulfuron, carfentrazoneethyl and dithiopyr according to claim 1, it is characterised in that in this herbicide, the mass ratio of flazasulfuron, carfentrazoneethyl and dithiopyr is 1～5:1～60:1～25.
4. the mixed herbicide according to claim 1,2 or 3, it is characterised in that flazasulfuron, carfentrazoneethyl and dithiopyr three weight/mass percentage composition in herbicide are 1～85%.
5. the mixed herbicide according to claim 4, it is characterised in that flazasulfuron, carfentrazoneethyl and dithiopyr three weight/mass percentage composition in herbicide are 10～80%.
6. the mixed herbicide according to claim 1,2 or 3, it is characterised in that flazasulfuron, carfentrazoneethyl and dithiopyr three weight/mass percentage composition in herbicide are 10～65%.
7. the mixed herbicide according to claim 1,2 or 3, it is characterised in that the auxiliary agent that it allows with flazasulfuron, carfentrazoneethyl and dithiopyr for principle active component and pesticide is configured to any one dosage form.
8. the mixed herbicide according to claim 7, it is characterised in that described dosage form is suspending agent, wettable powder, water dispersible granules, cream.
9. the application before the Seedling of lawn and/or in postemergence weed control of the mixed herbicide described in claim 1,2 or 3.
10. the application in various grass family, Cyperaceae and broad leaved weed in Weeds in Turf of the mixed herbicide described in claim 1,2 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410837924.7A CN105794822A (en) | 2014-12-29 | 2014-12-29 | Mixed herbicide containing flazasulfuron, carfentrazone-ethyl and dithiopyr as well as applications thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410837924.7A CN105794822A (en) | 2014-12-29 | 2014-12-29 | Mixed herbicide containing flazasulfuron, carfentrazone-ethyl and dithiopyr as well as applications thereof |
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| CN201410837924.7A Pending CN105794822A (en) | 2014-12-29 | 2014-12-29 | Mixed herbicide containing flazasulfuron, carfentrazone-ethyl and dithiopyr as well as applications thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990002120A1 (en) * | 1988-08-31 | 1990-03-08 | Fmc Corporation | Herbicidal triazolinones |
| WO1996003878A1 (en) * | 1994-08-02 | 1996-02-15 | E.I. Du Pont De Nemours And Company | Herbicidal mixtures |
| CN103596437A (en) * | 2011-04-11 | 2014-02-19 | 石原产业株式会社 | Herbicidal composition comprising flazasulfuron and an inhibitor of protoporphyrinogen oxidase |
-
2014
- 2014-12-29 CN CN201410837924.7A patent/CN105794822A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990002120A1 (en) * | 1988-08-31 | 1990-03-08 | Fmc Corporation | Herbicidal triazolinones |
| WO1996003878A1 (en) * | 1994-08-02 | 1996-02-15 | E.I. Du Pont De Nemours And Company | Herbicidal mixtures |
| CN103596437A (en) * | 2011-04-11 | 2014-02-19 | 石原产业株式会社 | Herbicidal composition comprising flazasulfuron and an inhibitor of protoporphyrinogen oxidase |
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