CN104396987A - Mixed weedicide containing flazasulfuron, bensulfuron and dithiopyr - Google Patents
Mixed weedicide containing flazasulfuron, bensulfuron and dithiopyr Download PDFInfo
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- CN104396987A CN104396987A CN201410714613.1A CN201410714613A CN104396987A CN 104396987 A CN104396987 A CN 104396987A CN 201410714613 A CN201410714613 A CN 201410714613A CN 104396987 A CN104396987 A CN 104396987A
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- dithiopyr
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- flazasulfuron
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Abstract
The invention discloses a mixed weedicide containing flazasulfuron, bensulfuron and dithiopyr. The mixed weedicide adopts flazasulfuron, bensulfuron and dithiopyr as main effective components, wherein the mass ratio of flazasulfuron to bensulfuron to dithiopyr 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, bensulfuron-methyl 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 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.
Bensulfuron-methyl (bensulfuron methyl); be Nongdeshi again; the sulfonylurea herbicide developed by E.I.Du Pont Company, chemical name: α-{ [(4,6-dimethoxypyridin-α-Ji) amino carbonyl amino] sulfonvlmethvl } methyl benzoate.Its structural representation is as follows:
Bensulfuron-methyl is selectivity inner-adsorption conduction-type herbicide.Active ingredient can spread rapidly in water, transfers to each portion of weeds, the biosynthesis of hindered aminoacid, lysine, isoleucine, stop division and the growth of cell for weeds root and blade absorb.Susceptible weeds GF is obstructed, and tender tissue turns to be yellow too early and suppresses the growth of leaf portion, hinders root growth and downright bad.Using method is flexible, available 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.Effectively can prevent and treat life in 1 year and perennial broadleaf weed and nutgrass flatsedge, can be absorbed by weeds root, leaf and pass to other positions.Be mainly used in preventing and kill off broad leaved weed and sedge weed as Monochoria vaginalis, pondweed, mexicana, chickweed, Monochoria korsakowii, difformed galingale herb, Herba Cyperi Glomerati, cyperus iria, kitchen garden etc.To grassy weed weak effect.
Dithiopyr (dithiopyr) is the pyridines weed killer herbicide developed by Monsanto Company's development, Rhom and Hass.Chemical name: 2-difluoromethyl-4-isobutyl group-6-trifluoromethyl-3,5-pyridine dithiocarbonic acid dimethyl ester.Its structural formula is as follows:
Be picolinic acid class preemergence herbicide, activity of weeding is not by the impact of environmental factor change, and the lasting period can reach 80 days.The annual weed such as barnyard grass, Monochoria vaginalis, difformed galingale herb, mexicana, alisma canaliculatum can be prevented and kill off.Use before the bud of lawn, consumption is 0.36-0.50kg/hm2, can prevent and kill off rise lady's-grass, digitaria violascens Link, etc. the annual broadleaf weed such as annual gramineous weed and ball sequence grasswort, bulbil red-spotted stonecrop, gland paint mushroom grass.
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, bensulfuron-methyl and dithiopyr.
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, bensulfuron-methyl and dithiopyr 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, bensulfuron-methyl and dithiopyr, this weed killer herbicide with flazasulfuron, bensulfuron-methyl and dithiopyr for principle active component, wherein, the mass ratio of flazasulfuron, bensulfuron-methyl and dithiopyr is 0.1 ~ 80:0.1 ~ 80:0.1 ~ 80.
In this mixed herbicide, the mass ratio of flazasulfuron, bensulfuron-methyl and dithiopyr is preferably 1 ~ 70:1 ~ 60:1 ~ 60.Mass ratio more preferably 1 ~ 5:1 ~ 60:1 ~ 25 of flazasulfuron, bensulfuron-methyl and dithiopyr.
In a kind of technical scheme, the mass ratio of flazasulfuron, bensulfuron-methyl and dithiopyr is preferably 1 ~ 5:1 ~ 5:1 ~ 25.
In another kind of technical scheme, the mass ratio of flazasulfuron, bensulfuron-methyl and dithiopyr 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 the mass percentage of dithiopyr 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, bensulfuron-methyl and dithiopyr, except the active ingredients such as flazasulfuron, bensulfuron-methyl and dithiopyr, 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).Bensulfuron-methyl is selectivity inner-adsorption conduction-type herbicide, and active ingredient can spread rapidly in water, absorbs and transfer to each portion of weeds, the biosynthesis of hindered aminoacid, lysine, isoleucine for weeds root and blade, stops division and the growth of cell.Dithiopyr is picolinic acid class preemergence herbicide, and activity of weeding is not by the impact of environmental factor change, and the lasting period can reach 80 days.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, bensulfuron-methyl mix with dithiopyr three, action compensating, herbicidal spectrum is wider, and, because flazasulfuron, bensulfuron-methyl are mainly effective to broad leaved weed and sedge weed, and pesticide-clay mixture or spraying can be spread; Dithiopyr can prevent and kill off grass family and part annual broadleaf weed.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 containing pyridines weed killer herbicide dithiopyr in weed killer herbicide of the present invention, 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.
Specific embodiments
Embodiment 1
Flazasulfuron 1%, bensulfuron-methyl 1%, dithiopyr 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%, bensulfuron-methyl 2%, dithiopyr 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%, bensulfuron-methyl 4%, dithiopyr 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%, bensulfuron-methyl 60%, dithiopyr 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%, bensulfuron-methyl 5%, dithiopyr 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%, bensulfuron-methyl 10%, dithiopyr 60%, NNO (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 difformed galingale herb.
Test method: be seeded in respectively in the Disposable paper cup of 9cm by the seed of quantitative difformed galingale herb, sows 10 ~ 15 seeds in every glass, cultivates in illumination box, when difformed galingale herb 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), 10% bensulfuron-methyl wetting powder (commercially available), 32% dithiopyr missible oil (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, bensulfuron-methyl and dithiopyr, it is characterized in that this weed killer herbicide with flazasulfuron, bensulfuron-methyl and dithiopyr for principle active component, the mass ratio of flazasulfuron, bensulfuron-methyl and dithiopyr is 0.1 ~ 80:0.1 ~ 80:0.1 ~ 80.
2. the mixed herbicide containing flazasulfuron, bensulfuron-methyl and dithiopyr according to claim 1, is characterized in that the mass ratio of flazasulfuron, bensulfuron-methyl and dithiopyr in this weed killer herbicide is 1 ~ 5:1 ~ 60:1 ~ 25.
3. the mixed herbicide containing flazasulfuron, bensulfuron-methyl and dithiopyr according to claim 2, is characterized in that the mass ratio of flazasulfuron, bensulfuron-methyl and dithiopyr in this weed killer herbicide is 1 ~ 5:1 ~ 5:1 ~ 25.
4. the mixed herbicide containing flazasulfuron, bensulfuron-methyl and dithiopyr according to claim 2, is characterized in that the mass ratio of flazasulfuron, bensulfuron-methyl and dithiopyr 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, bensulfuron-methyl and dithiopyr according to any one of Claims 1 to 4, is characterized in that flazasulfuron, bensulfuron-methyl and the mass percentage of dithiopyr three in weed killer herbicide are 1 ~ 85%.
6., according to the mixed herbicide containing flazasulfuron, bensulfuron-methyl and dithiopyr described in claim 5, it is characterized in that flazasulfuron, bensulfuron-methyl and the mass percentage of dithiopyr three in weed killer herbicide are 10 ~ 65%.
7. according to any one of Claims 1 to 4 containing the mixed herbicide of flazasulfuron, bensulfuron-methyl and dithiopyr, it is characterized in that this weed killer herbicide becomes any one formulation with flazasulfuron, bensulfuron-methyl and dithiopyr for auxiliary agent that principle active component and agricultural chemicals allow and excipient.
8., according to the mixed herbicide containing flazasulfuron, bensulfuron-methyl and dithiopyr 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, bensulfuron-methyl and dithiopyr 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, bensulfuron-methyl and dithiopyr according to any one of Claims 1 to 4.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410714613.1A CN104396987A (en) | 2014-11-30 | 2014-11-30 | Mixed weedicide containing flazasulfuron, bensulfuron and dithiopyr |
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| CN201410714613.1A CN104396987A (en) | 2014-11-30 | 2014-11-30 | Mixed weedicide containing flazasulfuron, bensulfuron and dithiopyr |
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| CN104396987A true CN104396987A (en) | 2015-03-11 |
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| CN201410714613.1A Pending CN104396987A (en) | 2014-11-30 | 2014-11-30 | Mixed weedicide containing flazasulfuron, bensulfuron and dithiopyr |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106135250A (en) * | 2015-05-11 | 2016-11-23 | 四川利尔作物科学有限公司 | Herbicidal combinations and application thereof |
-
2014
- 2014-11-30 CN CN201410714613.1A patent/CN104396987A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| YONG IN KUK等: "Sulfonylurea herbicide-resistant Monochoria vaginalis in Korean rice culture", 《PEST MANAGEMENT SCIENCE》, vol. 59, 12 June 2013 (2013-06-12), pages 2 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106135250A (en) * | 2015-05-11 | 2016-11-23 | 四川利尔作物科学有限公司 | Herbicidal combinations and application thereof |
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Application publication date: 20150311 |