CN104396989A - Mixed weedicide containing flazasulfuron, trifluralin and pendimethalin - Google Patents
Mixed weedicide containing flazasulfuron, trifluralin and pendimethalin Download PDFInfo
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- CN104396989A CN104396989A CN201410714655.5A CN201410714655A CN104396989A CN 104396989 A CN104396989 A CN 104396989A CN 201410714655 A CN201410714655 A CN 201410714655A CN 104396989 A CN104396989 A CN 104396989A
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- pendimethalin
- flazasulfuron
- trefanocide
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Abstract
The invention discloses a mixed weedicide containing flazasulfuron, trifluralin and pendimethalin. The mixed weedicide adopts flazasulfuron, trifluralin and pendimethalin as main effective components, wherein the mass ratio of flazasulfuron to trifluralin to pendimethalin is (0.1-80) to (0.1-80) to (0.1-80). The mixed weedicide can be applied to weeding in front of and behind lawn seedlings, particularly to prevention and removal of various grassy, cyperaceous and broad-leaved weeds in the lawn, and has a remarkable effect; in addition, the mixed weedicide has a relatively good synergetic effect, can delay the resistance of the weeds, and is wide in weeding spectrum, long in lasting time, safe to the lawn and remarkably superior to a single weedicide in effect.
Description
Technical field
The invention belongs to technical field of pesticide, relate to a kind of weed killer herbicide, be specifically related to a kind of flazasulfuron, trefanocide mixes built agent with the ternary of Pendimethalin, 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 lawn, has caused the great demand to lawn, and Development of Turf has good business opportunity., aesthetic firm in infrastructure such as guarantee highway, railway, airport, reservoir, riverbank, Hu Di, lawn is important auxiliary equipment; In urban construction, afforestation, can better people's living environment greatly in lawn, effectively reduce " tropical island effect " in city.The area of green grassland, quality reflect The Surroundings in Cities quality and civilization degree.Some developed countries as the city of the U.S., European Union especially using Lawn Industry as one of national 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 very high economic benefit, and has huge ecological benefits and social benefit.
But, because management is improper, there is Quality Down in a lot of lawn, the problems such as turfgrass is dead, weedy, damage by disease and insect occur again and again, the use value on serious reduction lawn and landscape value, cause a large amount of fund wastes, so research turf management technology, especially Kill weeds technology is the important measures changing lawn present situation and improve ecotope.
Artificial weeding, throwing work is large, weeding is thorough, has the disadvantage of 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, and this is that artificial uprooting weed institute can not be 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, for Turfgrass Growth provides rational environment.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.Labour 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, reduce labor intensity, simultaneously also because chemical weed control is convenient, quick-acting, the control time is long, chemical weed control is gradually by people are accepted.
Flazasulfuron (flazasulfuron) is the sulfonylurea herbicide being originated in the exploitation of industry chemical company by Japanese 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 the predecessor acetolactate synthestase producing 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, as lady's-grass, barnyard grass, eleusine indica, annual bluegrass, amur foxtail, green foxtail, the rhizome of nutgrass flatsedge, kyllinga brevifolia, cyperus iria, difformed galingale herb, alternanthera philoxeroides, Horseweed Herb, white clover, it is recklessly appropriate, Tufted Cerastium, creeping oxalis, hairy tare, pale reddish brown order place, clover, pale persicaria, sheep hoof, class humid euphorbia, greater plantain, argy wormwood, sweet vernal grass, green amaranth, shepherd's purse, benbie, common vetch, chickweed etc., to short leaf kyllinga brevifolia, lady's-grass and rhizome of nutgrass flatsedge preventive effect splendid.
Generally, process after weeds stop growing immediately, absorbs the leaf chlorisis newly sent afterwards for 4-5 days, then gradually necrosis and spread to whole plant 20-30 days weeds thoroughly withered.This medicament absorbs by weeds cauline leaf, and can suppress suppressing weed seed germination in soil again, the control time is 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).Can rapidly medicament be decomposed, be converted into innocuous substance after Korea lawn grass contacts medicament with Bermuda grass class turfgrass, the normal growth on lawn can not be affected, high to turfgrass safety.Use in lawn resting stage, germination in the future and growth can not be affected.Be widely used in greening lawn, golf course etc.
Trefanocide (Trifluralin) is the phenyl amines weed killer herbicide developed by Dow AgroSciences.Chemical name: 2,6-dinitro-N, N-diη-propyl-4-5-trifluoromethylaniline.Its structural formula is as follows:
Trefanocide is processing soil treatment agent before selectivity bud, suppresses microtubule system.Trefanocide passes in soil layer process absorbed by weed seed at germinating growth, and mainly absorbed by with the bud scale of gramineous plants, the hypocotyl of broad leaved plant, cotyledon and young root also can absorb, but little to bud and the conduction of other organs after absorbing.After emerging, the stem of plant and leaf can not absorb.Enter in plant corpus the generation or transmission that affects hormone and cause its death.Mainly prevent and kill off the broad leaved weed of grassy weed and part small-sized seed, as careless in barnyard grass, lady's-grass, eleusine indica, moleplant seed, eragrostis cilianensisLink, annual bluegrass, bromegrass, hard grass, caput, amaranth, lamb's-quarters, kitchen garden, chickweed, Liao, pivot store, puncture vine etc.Lasting period is long.Volatile, easy photodissociation, aqueous solvent are minimum, not easily move in soil layer.
Pendimethalin (pendimethalin), trade name weeding is led to, and is the phenyl amines weed killer herbicide developed by BASF Corp.Chemical name: N-1-(ethyl propyl) 2,6-dinitro-3,4-dimethylaniline.Its structural formula is as follows:
Pendimethalin is meristem cell division inhibitor, mainly suppresses meristem cell division, does not affect the sprouting of weed seed, but works after young shoot, stem and root absorption medicament in suppressing weed seed germination process.Dicotyledon absorption site is hypocotyl, and monocotyledon is young shoot, and its damage symptoms is that young shoot and secondary root are suppressed, finally causes death.Mainly prevent and kill off annual gramineae and some annual broadleaf weed.As: lady's-grass, eleusine indica, barnyard grass, annual bluegrass, multitude, kitchen garden, Amaranthus retroflexus, Asiatic plantain, corn sow thistle, amur foxtail, clearvers, green foxtail, volume stem knotweed, chickweed, summer cypress, nutgrass flatsedge, benbie, difformed galingale herb etc.
Current lawn herbicide limit by safety, herbicide spectrum is also limited, be used alone the generation that a kind of weed killer herbicide single dose can not control turf weed completely effectively, moreover some weed killer herbicide is due to water-soluble large or the field lasting period is oversize, consumption is excessive or dispenser is uneven all easily causes residual hazard.
Summary of the invention
The object of this invention is to provide a kind of mixed herbicide containing flazasulfuron, trefanocide and Pendimethalin.
Another object of the present invention is to provide the application of this weed killer herbicide in Kill weeds.
For achieving the above object, it is different that the present invention selects herbicide to compose, be made into mixture after the flazasulfuron of pluses and minuses complementation, trefanocide and Pendimethalin three kinds of suitable decrements of weed killer herbicide to use, so both expand herbicide spectrum, significantly improve herbicidal effect, it also avoid possibility lawn being produced to poisoning and residual hazard.The present invention specifically adopts following technical scheme:
A kind of mixed herbicide containing flazasulfuron, trefanocide and Pendimethalin, this weed killer herbicide with flazasulfuron, trefanocide and Pendimethalin for principle active component, wherein, the mass ratio of flazasulfuron, trefanocide and Pendimethalin is 0.1 ~ 80:0.1 ~ 80:0.1 ~ 80.
In this mixed herbicide, the mass ratio of flazasulfuron, trefanocide and Pendimethalin is preferably 1 ~ 70:1 ~ 60:1 ~ 60.Mass ratio more preferably 1 ~ 5:1 ~ 60:1 ~ 25 of flazasulfuron, trefanocide and Pendimethalin.
In a kind of technical scheme, the mass ratio of flazasulfuron, trefanocide and Pendimethalin is preferably 1 ~ 5:1 ~ 5:1 ~ 25.
In another kind of technical scheme, the mass ratio of flazasulfuron, trefanocide and Pendimethalin is 1:1:18 or 3:2:25 or 5:4:1 or 3:60:2.
In mixed herbicide of the present invention, flazasulfuron, trefanocide and the mass percentage of Pendimethalin three in weed killer herbicide are 1 ~ 85%, and preferred mass percentage composition is 15 ~ 80%, and most preferably mass percentage is 10 ~ 65%.
In the ternary built preparation of flazasulfuron of the present invention, trefanocide and Pendimethalin, except the active ingredients such as flazasulfuron, trefanocide and Pendimethalin, the auxiliary agents such as conventional surfactants, thickener, solvent or the solid packing that pesticidal preparations allows can also be added and excipient becomes any one formulation that agricultural chemicals allows.Preferably be processed into suspending agent, wetting powder, water dispersion granule, missible oil, microcapsule formulations.
Weeding before the present invention can be applicable to lawn seedling, after seedling, is particularly applied in various grass family, sedge family and broad leaved weed in Weeds in Turf, Be very effective.
Herbicidal composition of the present invention has the following advantages:
1, Synergistic, activity of weeding are high.Flazasulfuron is inhibitor of acetolactate synthetase.Absorb mainly through root and stem and be sent to meristematic tissue by conducting tissue, suppress the biosynthesis of branched-chain amino acid (as serine, isoleucine).Trefanocide mainly suppresses microtubule system, passes in soil layer process absorbed by weed seed at germinating growth.Pendimethalin mainly suppresses meristem cell division, do not affect the sprouting of weed seed, but work after young shoot, stem and root absorption medicament in suppressing weed seed germination process.That is, herbicidal composition of the present invention can kill weeds by three kinds of different approaches, produces higher synergistic function, greatly can improve the removing activity of weed killer herbicide.
2, herbicidal spectrum is wide, and the lasting period is long.After flazasulfuron, trefanocide mix with Pendimethalin 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; Trefanocide is processing soil treatment agent before selectivity bud, suppresses microtubule system.Mainly prevent and kill off the broad leaved weed of grassy weed and part small-sized seed.And Pendimethalin except to some broad leaved weed effectively except, also have good effect to grassy weed, and before seedling, Miao Houjun can use.So weed killer herbicide of the present invention has the double action in leaf surface treatment and feud, extend the lasting period of medicament.So weed killer herbicide of the present invention has the double action in leaf surface treatment and feud, extend the lasting period of medicament.
3, Weed Resistance is delayed.Because weeds easily produce resistance to sulfonylurea herbicide, and in weed killer herbicide of the present invention, contain the Pendimethalin of phenyl amines herbicide trifluralin and dinitroaniline, enable the medicament anti-weeds except anti-sulfonylurea effectively, in addition, reduce resistance weed, extend the service life of medicament.
4, safety is high.Herbicidal composition of the present invention, is applied to Kill weeds, and it can various grass family, sedge family and broad leaved weed in Weeds in Turf, under the prerequisite that improve drug effect, has safety to lawn.
Therefore, mixed herbicide of the present invention can be applied in the weed killer herbicide preparing Kill weeds, particularly applies in various grass family, sedge family and broad leaved weed in Weeds in Turf.
Embodiment
Embodiment 1
Flazasulfuron 1%, trefanocide 1%, Pendimethalin 18%, alkylphenol polyoxyethylene 4%, the rare block compound 5% of polyoxyethylene polyoxy third, thickener 2%, vegetable oil to 100%, formulation method is conveniently mixed with the suspending agent that mass percentage is 20%.
Embodiment 2
Flazasulfuron 3%, trefanocide 2%, Pendimethalin 25%, NN0 (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, alkylphenol polyoxyethylene 5%, sodium lignin sulfonate to 100%, formulation method is conveniently mixed with the suspending agent that mass percentage is 30%.
Embodiment 3
Flazasulfuron 5%, trefanocide 4%, Pendimethalin 1%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and formulation method is conveniently mixed with the water dispersion granule that mass percentage is 10%.
Embodiment 4
Flazasulfuron 3%, trefanocide 60%, Pendimethalin 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 is conveniently mixed with the wetting powder that mass percentage is 65%.
Embodiment 5
Flazasulfuron 70%, trefanocide 5%, Pendimethalin 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 is conveniently mixed with the wetting powder that mass percentage is 80%.
Embodiment 6
Flazasulfuron 10%, trefanocide 10%, Pendimethalin 60%, NN O (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, alkylphenol polyoxyethylene 5%, sodium lignin sulfonate to 100%, formulation method is conveniently mixed with the missible oil that mass percentage is 80%.
Embodiment 7
1), toxicity determination test
Utilize the preparation in embodiment 1 ~ 4, measure its co-toxicity coefficient to lawn common weed barnyard grass.
Test method: be seeded in respectively in the Disposable paper cup of 9cm by the seed of quantitative barnyard grass, sows 10 ~ 15 seeds in every glass, cultivates in illumination box, when barnyard grass 3 ~ 6 leaf phase, does composition spray to carry out spraying process in crawler type.Continue 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, and the method proposed by nineteen sixties such as Sun Yunpei, calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient is greater than 120, and show that three kinds of active principles have synergy, co-toxicity coefficient is greater than 100, and show that three kinds of active principles have synergistic effect, co-toxicity coefficient is less than 100, shows that three 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 three kinds of active principles are composite is all greater than 120, illustrates that the present invention has significantly synergy and synergistic effect.
2), field control effectiveness test
Reagent agent:
4 kinds of ternary built weed killer herbicides in embodiment 1 ~ 4.
Contrast medicament:
25% flazasulfuron water dispersible granules (commercially available), 48% trifluralin ec (commercially available), 30% Pendimethalin suspending agent (commercially available).
For examination lawn: Bermuda grass
Bermuda grass was 3 ~ 5 leaf phases, grew fine, robust plant, without other damage by disease and insect.
Prevent and kill off object:
The lawn gesture weeds such as rhizoma alismatis, nutgrass flatsedge, apple, pondweed, arrowhead, difformed galingale herb, chickweed, lady's-grass, green foxtail, barnyard grass, eleusine indica.
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 weed killer herbicide is special.During spraying, liquid be noted evenly to spray application in experimental plot, accomplish the phenomenon not having drain spray, many sprays.
After test, after medicine, 20d, 40d observe weeds death condition respectively, and the activity of weeding of more various medicament.In addition, after medicine, the growing state on lawn also in 1 ~ 15d, to be observed, whether have poisoning to investigate medicament to lawn.
Embodiments of the invention preparation Herbicidal Testing Trials effect sees the following form 2 (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)
As can be seen from table 2 and table 3, the present invention has significant preventive effect to grassy weed, sedge weed and broad leaved weed, significantly building performance, and the lasting period is long.
Table 4 medicament is to the security survey result on lawn
Growing fine in lawn in each process community, has no any medicine spot, illustrates that various medicament is all safe to lawn.
Claims (10)
1. the mixed herbicide containing flazasulfuron, trefanocide and Pendimethalin, it is characterized in that this weed killer herbicide with flazasulfuron, trefanocide and Pendimethalin for principle active component, the mass ratio of flazasulfuron, trefanocide and Pendimethalin is 0.1 ~ 80:0.1 ~ 80:0.1 ~ 80.
2. the mixed herbicide containing flazasulfuron, trefanocide and Pendimethalin according to claim 1, is characterized in that the mass ratio of flazasulfuron, trefanocide and Pendimethalin in this weed killer herbicide is 1 ~ 5:1 ~ 60:1 ~ 25.
3. the mixed herbicide containing flazasulfuron, trefanocide and Pendimethalin according to claim 2, is characterized in that the mass ratio of flazasulfuron, trefanocide and Pendimethalin in this weed killer herbicide is 1 ~ 5:1 ~ 5:1 ~ 25.
4. the mixed herbicide containing flazasulfuron, trefanocide and Pendimethalin according to claim 2, is characterized in that the mass ratio of flazasulfuron, trefanocide and Pendimethalin in this weed killer herbicide is 1:1:18 or 3:2:25 or 5:4:1 or 3:60:2.
5. the mixed herbicide containing flazasulfuron, trefanocide and Pendimethalin according to any one of Claims 1 to 4, is characterized in that flazasulfuron, trefanocide and the mass percentage of Pendimethalin three in weed killer herbicide are 1 ~ 85%.
6., according to the mixed herbicide containing flazasulfuron, trefanocide and Pendimethalin described in claim 5, it is characterized in that flazasulfuron, trefanocide and the mass percentage of Pendimethalin three in weed killer herbicide are 10 ~ 65%.
7. according to any one of Claims 1 to 4 containing the mixed herbicide of flazasulfuron, trefanocide and Pendimethalin, it is characterized in that it becomes any one formulation with flazasulfuron, trefanocide and Pendimethalin for auxiliary agent that principle active component and agricultural chemicals allow and excipient.
8., according to the mixed herbicide containing flazasulfuron, pyributicarb and Flumetsulam described in claim 7, it is characterized in that described formulation is suspending agent, wetting powder, water dispersion granule, missible oil.
9. the application of mixed herbicide before the seedling of lawn and/or in postemergence weed control containing flazasulfuron, trefanocide and Pendimethalin according to any one of Claims 1 to 4.
10. the application of mixed herbicide in Weeds in Turf in various grass family, sedge family and broad leaved weed containing flazasulfuron, trefanocide and Pendimethalin according to any one of Claims 1 to 4.
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| CN201410714655.5A CN104396989B (en) | 2014-11-30 | 2014-11-30 | A kind of mixed herbicide containing flazasulfuron, trefanocide and Pendimethalin |
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| CN102791126A (en) * | 2010-03-03 | 2012-11-21 | 石原产业株式会社 | Method for reducing unwanted effects on grass |
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- 2014-11-30 CN CN201410714655.5A patent/CN104396989B/en active Active
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| CN102791126A (en) * | 2010-03-03 | 2012-11-21 | 石原产业株式会社 | Method for reducing unwanted effects on grass |
| CN101891631A (en) * | 2010-07-08 | 2010-11-24 | 上海海事大学 | Method for preparing pendimethalin |
| CN102461530A (en) * | 2010-11-19 | 2012-05-23 | 南京华洲药业有限公司 | Mixed herbicide containing cinosulfuron, bensulfuron-methyl and pendimethalin and application thereof |
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