CN105766968B - A kind of mixed herbicide containing flazasulfuron, oxadiargyl and trefanocide - Google Patents

A kind of mixed herbicide containing flazasulfuron, oxadiargyl and trefanocide Download PDF

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CN105766968B
CN105766968B CN201410827882.9A CN201410827882A CN105766968B CN 105766968 B CN105766968 B CN 105766968B CN 201410827882 A CN201410827882 A CN 201410827882A CN 105766968 B CN105766968 B CN 105766968B
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oxadiargyl
trefanocide
flazasulfuron
herbicide
weed
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CN105766968A (en
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黄娟
邢平
高瑞花
石振龙
郭崇友
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Nanjing Huazhou Pharmaceutical Co Ltd
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Nanjing Huazhou Pharmaceutical Co Ltd
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Abstract

The invention discloses a kind of mixed herbicide containing flazasulfuron, oxadiargyl and trefanocide, for the herbicide using flazasulfuron, oxadiargyl and trefanocide as principle active component, the mass ratio of flazasulfuron, oxadiargyl and trefanocide is 0.1~80:0.1~80:0.1~80.Application of the mixed herbicide of the present invention in Kill weeds, the application particularly in Weeds in Turf in various grass family, Cyperaceae and broad leaved weed have remarkable result.Herbicide of the present invention on the premise of drug effect is improved, delays Weed Resistance compared to single agent, and herbicidal spectrum is wide, and the lasting period is long, and has security to lawn.

Description

A kind of mixed herbicide containing flazasulfuron, oxadiargyl and trefanocide
Technical field
The invention belongs to technical field of pesticide, are related to a kind of herbicide, and in particular to a kind of flazasulfuron, oxadiargyl Compounding agent is mixed with the ternary of trefanocide, which can be applied to lawn before seedling, postemergence weed control.
Background technology
With increasing substantially for the quickening of Urbanization in China, the promotion of urban afforestation standard and urban size, respectively Kind lawn is come into being, and has triggered the great demand to lawn, Development of Turf has good business opportunity.Ensureing highway, iron The infrastructure such as road, airport, reservoir, riverbank, Hu Di are firm, aesthetic, and lawn is important auxiliary equipment;It is built in city If, in terms of afforestation, lawn can substantially improve living environment, " tropical island effect " that effectively reduces city.Green grassland Area, quality reflect The Surroundings in Cities quality and civilization degree.The city in some developed countries such as U.S., European Union is even more grass Level ground industry is as one of national pillar industry.At present, the Lawn Industry in China has large development, but not yet forms complete integration Industrial system.Lawn plays important in the spiritual civilization level of China's urban construction, living environment beautification and the raising people Role, it not only has very high economic benefit, but also with huge ecological benefits and social benefit.
However, since management is improper, there is quality decline in many lawns, and turfgrass is dead, weedy, pest and disease damage The problems such as occur again and again, the serious use value and landscape value for reducing lawn causes substantial amounts of fund to waste, so research grass Level ground administrative skill, especially Kill weeds technology are the important measures for changing lawn present situation and improving ecological environment.
Artificial weeding, throwing work is big, weeding is not thorough, and has the disadvantage for trampleing on lawn, so as to reduce turf quality.Some places Lawn must not be changed without, it is costly.Chemical weed control saving of work and time, low-cost high-efficiency, later stage weeds occurrence quantity is few, this is people Work uprooting weed cannot than.And chemical weed control also has sealing process, and the weeds newly gone out later want much less.Chemical weed control is to grass Level ground interference is few, and rational environment is provided for Turfgrass Growth.Weeding expense is low, and expense is the l/3-l/4 of labour cost, and one The expense in year is the 1/4-1/5 of labour cost.Labor intensity is low, and a people can spray 7-9 mus of lawns, machine spraying effect daily Rate higher has large area weeding advantage.In order to reduce the economic loss caused by crop smothering, reduce labor intensity, at the same also because For chemical weed control is convenient, quick-acting, control time is long, chemical weed control is gradually received by people.
Flazasulfuron (flazasulfuron) is the sulfonylurea herbicide that the exploitation of industry chemical company is originated in by Japanese stone. Chemical name 1- (4,6- dimethoxypyridin -2- bases) -3- (3- trifluoromethyl -2- pyridine sulfonyl sulfonyls) urea, structure diagram is such as Under:
Acetolactate synthestase (ALS) inhibitor.It is main to inhibit to generate side chain amino acid, leucine, isoleucine and figured silk fabrics The reaction of the predecessor acetolactate synthestase of propylhomoserin.The medicament broad weed-killing spectrum, it is annual in Weeds in Turf that can not only be fabulous Broad-leaved and grassy weed, and perennial broadleaf weed and sedge weed can also be prevented and kill off, such as lady's-grass, barnyard grass, eleusine indica, morning Ripe standing grain, amur foxtail, green bristlegrass, the rhizome of nutgrass flatsedge, kyllinga brevifolia, cyperus iria, difformed galingale herb, alternanthera philoxeroides, Horseweed Herb, white axle Grass, day recklessly appropriate, Tufted Cerastium, creeping oxalis, hairy tare, pale reddish brown mesh place, clover, pale persicaria, sheep hoof, euphorbia maculata, greater plantain, Argy wormwood, sweet vernal grass, green amaranth, shepherd's purse, chickweed etc., it is splendid to kyllinga brevifolia, lady's-grass and rhizome of nutgrass flatsedge preventive effect.
Under normal circumstances, weeds stop growing immediately after processing, the leaf chlorisis that newly sends after absorbing 4-5 days, then by Gradually necrosis and to spread to 20-30 days weeds of entire plant thoroughly withered.The medicament can be absorbed by weeds cauline leaf, and can inhibit soil Suppressing weed seed germination in earth, control time is longer, and the lasting period is about 40 days or more in spring and summer, and autumn and winter is 120 days or more.
Flazasulfuron is that first, China formal registration is special on warm-season turf (Korea lawn grass class and Bermuda grass class) Herbicide.Medicament can be decomposed rapidly after Korea lawn grass and Bermuda grass class turfgrass contact medicament, be converted into innocuous substance, Bu Huiying The normal growth on lawn is rung, it is safe to turfgrass.It is used in lawn rest period, does not interfere with germination and growth in the future. It is widely used in greening lawn, golf course etc..
Oxadiargyl (oxadiargyl) is the oxadiazoles type herbicides developed by Rhone-Poulenc.Chemistry Title:5- tertiary butyls -3- (2,4- bis- chloro- 5- (Propargyl oxygroup) phenyl) -1,3,4 oxadiazoles -2- (3H) -one.Its structure Schematic diagram is as follows:
Oxadiargyl is proporphyrinogen oxidase inhibitor, is selective contact killing type young plant weeding agent.It emerges in weeds It absorbs to work by young shoot or seedling contact afterwards, medicament is accumulated in the vigorous position of growth after entering plant, in illumination Under the conditions of, inhibit growth, weed organization is finally made to rot death.It is mainly used for preventing and kill off broad leaved weed, grassy weed and nutgrass flatsedge Section weeds, such as piemarker, beggar-ticks, Chenopodium weeds, Siberian cocklebur, dawrf mallow, Monochoria vaginalis, Polygonum weeds, black nightshade, sonchus oleraceus, successively Dish, barnyard grass, moleplant seed, tribulus terrestris grass, Lan Macao, lady's-grass, eleusine indica, millet category weeds, difformed galingale herb, cyperus iria, needle spikesedge herb Deng.There is good preventive effect to malignant weed Si Ye Ping etc..Soil, cauline leaf process, herbicidal effect sustainable 30 days or so.
Trefanocide (Trifluralin) is the phenyl amines herbicide developed by Dow AgroSciences.Chemical name:2,6- Dinitro-N, N- diη-propyl -4- 5-trifluoromethylanilines.Its structural formula is as follows:
It is processing soil treatment agent before selective bud, inhibits microtubule system.Trefanocide is to be worn by weed seed in germinating growth Cross absorbed during soil layer, mainly the bud scale of quilt and grass, the hypocotyl of broad leaved plant absorb, cotyledon and children Root can also absorb, but seldom be conducted after absorbing to bud and other organs.The stem of plant and leaf cannot absorb after emergence.Into plant Influence in vivo hormone generation or transmission and cause its dead.It mainly prevents and kill off grassy weed and the broad-leaved of part small-sized seed is miscellaneous Grass, such as barnyard grass, lady's-grass, eleusine indica, moleplant seed, eragrostis cilianensisLink, annual bluegrass, bromegrass, hard grass, caput grass, amaranth, lamb's-quarters, purslane, numerous In detail, Liao, pivots storage, puncture vine etc..Lasting period is long.Volatile, easy photodissociation, aqueous solvent are minimum, are not easy to move in soil layer.
Lawn herbicide is limited by security at present, and herbicide controlling spectrum is also limited, and a kind of herbicide single dose is used alone cannot be complete The full generation for efficiently controlling turf weed, furthermore some herbicides are since the water-soluble big or field lasting period is too long, dosage mistake It is big or dispenser is uneven all be easy to cause residual hazard.Therefore, present invention selection herbicide controlling spectrum is different, the phonetic sulphur of pyridine of advantage and disadvantage complementation Mixture use is made into after three kinds of herbicides of grand, oxadiargyl and trefanocide suitably decrement, so both expands herbicide controlling spectrum, hence it is evident that Herbicidal effect is improved, also avoids generating lawn the possibility of poisoning and residual hazard.
The content of the invention
The object of the present invention is to provide a kind of mixed herbicides containing flazasulfuron, oxadiargyl and trefanocide.
It is a further object of the present invention to provide application of the herbicide in lawn before seedling, postemergence weed control.
A kind of mixed herbicide containing flazasulfuron, oxadiargyl and trefanocide, it is characterised in that the herbicide is with pyridine Sulfometuron Methyl, oxadiargyl and trefanocide are principle active component, and the mass ratio of flazasulfuron, oxadiargyl and trefanocide is 0.1~80:0.1~80:0.1~80.It is preferred that the mass ratio of flazasulfuron, oxadiargyl and trefanocide is 1~70:1~60: 1~60, the mass ratio of further preferred flazasulfuron, oxadiargyl and trefanocide is 1~5:1~60:1~25, most preferably The mass ratio of flazasulfuron, oxadiargyl and trefanocide is 1:1:18、3:2:25、5:4:1 or 3:60:2.
In mixed herbicide, the quality percentage of flazasulfuron, oxadiargyl and trefanocide three in herbicide contains It measures as 1~85%, preferred mass percentage composition is 10~80%, and most preferably mass percentage is 10~65%.
In the flazasulfuron of the present invention, the ternary built preparation of oxadiargyl and trefanocide, except flazasulfuron, propine Outside the active ingredients such as oxadiazon and trefanocide, conventional surfactants allowed on pesticidal preparations, thickener, molten can also be added The auxiliary agents such as agent or solid packing are configured to any one dosage form allowed on pesticide.It is preferred that be processed into suspending agent, wettable powder, Water dispersion granule, missible oil, microcapsule formulations.
Mixed herbicide of the present invention can be applied in lawn before seedling, postemergence weed control, particularly in Weeds in Turf Being applied in various grass family, Cyperaceae and broad leaved weed has remarkable result.
The herbicidal composition of the present invention has the following advantages:
1st, activity of weeding is high.Flazasulfuron is inhibitor of acetolactate synthetase.Mainly by root and stem absorb by Conducting tissue is transmitted to separate living tissue, inhibits the biosynthesis of branched-chain amino acid (such as serine, isoleucine).Oxadiargyl It is proporphyrinogen oxidase inhibitor, is selective contact killing type young plant weeding agent.It is connect after weeds emerge by young shoot or seedling It touches and absorbs and work, medicament is accumulated in the vigorous position of growth after entering plant, under conditions of illumination, inhibits growth, most Weed organization is made to rot death eventually.Trefanocide mainly inhibits microtubule system, and soil layer mistake is passed through in germinating growth by weed seed It is absorbed in journey.That is, the herbicidal composition of the present invention can kill weeds, Ke Yiji by three kinds of different approaches The earth improves the removing activity of herbicide.
2nd, herbicidal spectrum is wide, and the lasting period is long.After flazasulfuron, oxadiargyl are mixed with trefanocide three, action compensating removes Grass spectrum is wider, moreover, because flazasulfuron is mainly effective to broad leaved weed and sedge weed, and can spread pesticide-clay mixture or spraying; Oxadiargyl is proporphyrinogen oxidase inhibitor, is selective contact killing type young plant weeding agent.It is mainly used for preventing and kill off broad-leaved miscellaneous Grass, grassy weed and sedge weed.Soil, cauline leaf process, herbicidal effect sustainable 30 days or so.Trefanocide is choosing Processing soil treatment agent before selecting property bud inhibits microtubule system.The main broad leaved weed for preventing and kill off grassy weed and part small-sized seed.Institute There is the double action in foliar treatment and feud with the herbicide of the present invention, extend the lasting period of medicament.
3rd, Weed Resistance is delayed.Since weeds easily generate sulfonylurea herbicide resistance, and in the herbicide of the present invention Containing proporphyrinogen oxidase inhibitor oxadiargyl and phenyl amines herbicide trifluralin, enable medicament effectively prevent except The weeds of anti-sulfonylurea in addition, reducing resistance weed, extend the service life of medicament.
4th, it is safe.The herbicidal composition of the present invention, being capable of various standing grain in Weeds in Turf applied to Kill weeds Undergraduate course, Cyperaceae and broad leaved weed on the premise of drug effect is improved, have security to lawn.
Therefore, mixed herbicide of the present invention can be applied in the herbicide for preparing Kill weeds, particularly prepare It is applied in Weeds in Turf in the herbicide of various grass family, Cyperaceae and broad leaved weed.
Specific embodiment
Embodiment 1
Flazasulfuron 1%, oxadiargyl 1%, trefanocide 18%, alkylphenol polyoxyethylene ether 4%, polyoxyethylene polyoxy Propylene block compound 5%, thickener 2%, vegetable oil adds to 100%, and quality percentage is configured to according to conventional formulation method Content is 20% suspending agent.
Embodiment 2
Flazasulfuron 3%, oxadiargyl 2%, trefanocide 25%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, alkyl phenol Polyoxyethylene ether 5%, sodium lignin sulfonate adds to 100%, and being configured to mass percentage according to conventional formulation method is 30% suspending agent.
Embodiment 3
Flazasulfuron 5%, oxadiargyl 4%, trefanocide 1%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite complements to 100%, and it is 10% to be configured to mass percentage according to conventional formulation method Water dispersion granule.
Embodiment 4
Flazasulfuron 3%, oxadiargyl 60%, trefanocide 2%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, lignin Sodium sulfonate 5%, white carbon 9%, kaolin complements to 100%, and being configured to mass percentage according to conventional formulation method is 65% wettable powder.
Embodiment 5
Flazasulfuron 70%, oxadiargyl 5%, trefanocide 5%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, lignin Sodium sulfonate 4%, white carbon 5%, kaolin supplies 100%, and being configured to mass percentage according to conventional formulation method is 80% wettable powder.
Embodiment 6
Flazasulfuron 10%, oxadiargyl 10%, trefanocide 60%, NN O (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, alkyl Phenol polyethenoxy ether 5%, sodium lignin sulfonate adds to 100%, and being configured to mass percentage according to conventional formulation method is 80% missible oil.
Embodiment 7
1), toxicity determination test
Using the preparation in Examples 1 to 4, its co-toxicity coefficient to lawn common weed barnyard grass is measured.
Test method:The seed of quantitative barnyard grass is seeded in the disposable paper cup of 9cm respectively, in every glass sow 10~ 15 seeds, are cultivated in illumination box, when 3~6 leaf phase of barnyard grass, are carried out in crawler crop spray at spraying Reason.Continue to cultivate in greenhouse after processing, respectively processing to the preventive effects of weeds, weighs that each that treated is miscellaneous to routine observation after 30d Careless fresh weight 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, show that three kinds of active principles have synergistic effect, co-toxicity coefficient is less than 120, shows that three kinds of active principles are made with antagonism With.Measurement result is as shown in table 1.
1 toxicity measurement result of table
As can be seen from the above table, the co-toxicity coefficient after three kinds of active principle compoundings is both greater than 120, and it is bright to illustrate that the present invention has Aobvious synergistic effect.
2), field control effectiveness test
Reagent agent:
In Examples 1 to 44 in ternary built herbicide.
Comparison medicament:
25% flazasulfuron water dispersible granules (commercially available), 80% oxadiargyl wettable powder (commercially available), 48% fluorine pleasure Missible oil (commercially available).
For trying lawn:Bermuda grass
Bermuda grass was 3~5 leaf phases, was grown fine, robust plant, without other pest and disease damages.
Control object:
The lawns such as rhizoma alismatis, nutgrass flatsedge, apple, bog pondweed, arrowhead, difformed galingale herb, chickweed, lady's-grass, green bristlegrass, barnyard grass, eleusine indica Gesture weeds.
Test method:
According to the area of experimental plot, good various medicaments of precise, and after being watered dilution, using knapsack sprayer, Carry out even spraying, the dedicated Fan spray head of sprinkler selection herbicide.During spraying, it should be noted that it is small that liquid is uniformly sprayed application to experiment Qu Zhong accomplishes no drain spray, the phenomenon that spraying more.
20d, 40d observe weeds death condition, and the activity of weeding of more various medicaments after medicine respectively after experiment.This Outside, the growing state on lawn is also observed in 1~15d after medicine, to investigate whether medicament has poisoning to lawn.
The embodiment of the present invention preparation Herbicidal Testing Trials effect see the table below 2 (20d after medicine) and table 3 (40d after medicine)
2 field control effectiveness test result of table (20d after medicine)
3 field control effectiveness test result of table (40d after medicine)
The present invention be can be seen that from table 2 and table 3 to grassy weed, sedge weed and broad leaved weed all with aobvious The preventive effect of work, it is building performance notable, and also the lasting period is long.
4 medicament of table is to the security survey result on lawn
Lawn in each processing cell is grown fine, and is had no any medicine spot, is illustrated that various medicaments are safe to lawn.

Claims (8)

1. a kind of mixed herbicide containing flazasulfuron, oxadiargyl and trefanocide, it is characterised in that the herbicide is phonetic with pyridine Sulphur is grand, oxadiargyl and trefanocide are active ingredient, and the mass ratio of flazasulfuron, oxadiargyl and trefanocide is 1:1: 18、3:2:25、5:4:1.
2. mixed herbicide according to claim 1, it is characterised in that flazasulfuron, oxadiargyl and trefanocide three Mass percentage in herbicide is 1~85%.
3. mixed herbicide according to claim 2, it is characterised in that flazasulfuron, oxadiargyl and trefanocide three Mass percentage in herbicide is 10~80%.
4. mixed herbicide according to claim 3, it is characterised in that flazasulfuron, oxadiargyl and trefanocide three Mass percentage in herbicide is 10~65%.
5. mixed herbicide according to claim 1, it is characterised in that it is with flazasulfuron, oxadiargyl and trefanocide Auxiliary agent to allow on principle active component and pesticide is configured to any one dosage form.
6. mixed herbicide according to claim 5, it is characterised in that the dosage form for suspending agent, wettable powder, Water dispersible granules, missible oil.
7. application of the mixed herbicide described in claim 1 in lawn before seedling, postemergence weed control.
8. mixed herbicide described in claim 1 answering in various grass family, Cyperaceae and broad leaved weed in Weeds in Turf With.
CN201410827882.9A 2014-12-26 2014-12-26 A kind of mixed herbicide containing flazasulfuron, oxadiargyl and trefanocide Active CN105766968B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0764404A1 (en) * 1995-09-21 1997-03-26 Ishihara Sangyo Kaisha, Ltd. Granular herbicidal composition
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
CN103929966A (en) * 2011-01-28 2014-07-16 陶氏益农公司 Controlling mealybugs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0764404A1 (en) * 1995-09-21 1997-03-26 Ishihara Sangyo Kaisha, Ltd. Granular herbicidal composition
CN103929966A (en) * 2011-01-28 2014-07-16 陶氏益农公司 Controlling mealybugs
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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