CN103918689B - A kind of containing thifensulfuronmethyl with the Herbicidal combinations of bromoxynil octanoate - Google Patents
A kind of containing thifensulfuronmethyl with the Herbicidal combinations of bromoxynil octanoate Download PDFInfo
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- CN103918689B CN103918689B CN201410119386.8A CN201410119386A CN103918689B CN 103918689 B CN103918689 B CN 103918689B CN 201410119386 A CN201410119386 A CN 201410119386A CN 103918689 B CN103918689 B CN 103918689B
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- thifensulfuronmethyl
- bromoxynil octanoate
- herbicidal combinations
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- bromoxynil
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Abstract
The invention discloses a kind of containing thifensulfuronmethyl with the Herbicidal combinations of bromoxynil octanoate, it includes active ingredient thifensulfuronmethyl and bromoxynil octanoate, remaining is insecticides adjuvant, the mass fraction of thifensulfuronmethyl and bromoxynil octanoate is 3%～80% than for 1:20～20:1, thifensulfuronmethyl and bromoxynil octanoate quality summation mass percent in composition pesticide.According to application needs, the present invention can be prepared as dispersibling the one in oil-suspending agent, suspending agent, wettable powder, water dispersible granules, is used for preventing and kill off wheat paddock annual broadleaf weed.The winter wheat field annual broadleaf weed effect of preventing and kill off of said composition is substantially better than each single dose, reduces dosage, delays herbicide resistance.
Description
Technical field
The present invention relates to a kind of containing thifensulfuronmethyl with the compositions of bromoxynil octanoate, be with thifensulfuronmethyl
It is effective ingredient with bromoxynil octanoate, is used for preventing and treating wheat paddock annual broadleaf weed.
Background technology
Chemical method weeding is agriculturally one of Main Means controlling weeds.In recent years, due to some
Herbicide kind large area is used alone, and already leads to a lot of weeds and develops immunity to drugs.Meanwhile, weeds
Grass during generation is mutually complicated, grassy weed, broad leaved weed, the mixed life of dried tuber multiclass weeds, single product
Plant herbicide use and can not solve farmland weed, all can show defect in a certain respect and limitation.
Variety classes herbicide mixture, have that herbicidal spectrum is wide, promote actual effect, delay herbicide resistance,
Time and labour saving advantage.
Thifensulfuronmethyl belongs to selective herbicide after inner sucting conduction type Seedling, is branched-chain amino acid synthetic inhibitor,
The biosynthesis of valine, leucine, isoleucine can be suppressed, stop cell division, make sensitive work
Thing stops growing.It is mainly used in preventing and kill off cereal crop winter wheat, Fructus Hordei Vulgaris, Herba bromi japonici, Semen Maydis field
Broad leaved weed, as Amaranthus retroflexus, Herba Galii Teneri, descurainia sophia (l.) webb ex prantl, Herba Capsellae, Herba Salsolae Collinae, Herba Galii Teneri, Herba veronicae,
Cattle Herba stellariae mediaes etc. are invalid to Herba Capsellae, Herba seu Flos Convolvuli arvensis and grassy weed etc..
Bromoxynil octanoate is stem and leaf process contact killing type herbicide after selectivity Seedling, is mainly absorbed by blade,
The most limited conduction is carried out, by each process of inhibited photosynthesis, including suppression in plant
Photophosphorylation reaction and electron transmission, the most photosynthetic Hill reaction, make plant tissue fast
Speed is downright bad, thus reaches herbicide purpose, and when temperature is higher, speeding-up blade is withered.
Variety classes herbicide mixture, has that herbicidal spectrum is wide, promote actual effect, delay weeds drug resistance
Property, time and labour saving advantage.Screened by formulation of pesticide, actual prevention effect can be effectively improved, reduce
Dosage, reduces cost, delays disease, worm, the drug-fast generation of crop smothering, is that agricultural synthesis is administered
Important means.The recipe determination of thifensulfuronmethyl and bromoxynil octanoate is conducted in-depth research by the present inventor,
Find that thifensulfuronmethyl and bromoxynil octanoate carry out mixture, in certain mixed ratio scope to wheat paddock one
Year, raw broad leaved weed had potentiation or summation action, after further study, completed the present invention.
Summary of the invention
It is an object of the invention to solve in prior art to develop immunity to drugs farmland weed problem and reality
Prevention effect is poor, it is provided that one is efficiently, low toxicity, quick-acting are good and the lasting period is long, beneficially farmland
The composition pesticide of weeds comprehensive control.
It is another object of the present invention to be used for preventing and kill off farmland weed by this composition pesticide, be particularly useful for Semen Tritici aestivi
Field annual broadleaf weed.
Technical scheme: for achieving the above object, the invention provides a kind of containing azoles thiophene
The grand Herbicidal combinations with bromoxynil octanoate of sulphur, effective ingredient is thifensulfuronmethyl and bromoxynil octanoate, thiophene
Fen sulphur is grand and the mass fraction of bromoxynil octanoate ratio is for 1:20～20:1, thifensulfuronmethyl and decoyl bromobenzene
Nitrile total mass fraction percentage composition in the composition is 3%～80%.
The Herbicidal combinations of the present invention with known method be prepared as be suitable for agriculturally use any one
Dosage form, reasonable dosage form dispersibles oil-suspending agent, suspending agent, wettable powder, water-dispersible grain
Agent.The processing technique of the various preparation of the present composition is prior art, permissible according to different situations
It is varied from.
In Herbicidal combinations of the present invention use auxiliary agent include solvent, emulsifying agent, wetting agent, stabilizer,
Dispersant, thickening agent, pH adjusting agent, defoamer, antifreezing agent, packing agent etc. are of value to effective ingredient
Stablize and play the known substance of drug effect in the formulation, be all conventional in pesticidal preparations or permission use
Various compositions, concrete composition and consumption are determined by test according to recipe requirements.
Product described in the invention can provide with the form of finished product preparation, and i.e. in compositions, each material has been
Blended, the composition of compositions can also the form of single dose provide, directly mixed in tank or bucket before using
Close, be then diluted to required concentration.The frequency of administration of the present composition and amount of application are with weather
Situation and weeds situation change and change, and can reach, by using suitable dosage, the purpose prevented and kill off.
The Herbicidal combinations of the present invention is applicable to prevent and kill off farmland weed, especially prevents and kill off wheat paddock annual
Grass family and part broad leaved weed.
The composition pesticide that the present invention provides, uses stem and leaf spray method to use in the weeds 3～4 leaf phase,
Other use technology agriculturally applied can also be used as required.
The Herbicidal combinations that the present invention provides has the advantages that:
1, the Herbicidal combinations that the present invention provides, shows obvious potentiation in certain ratio range and makees
With, the prevention effect of compositions is significantly improved than single dose, reduces the using dosage of pesticide, subtracts
Lack times for spraying, reduced drug cost, decrease the pesticide adverse effect to ecological environment.
2, the Herbicidal combinations that the present invention provides, the combination of two kinds of active ingredients, expand herbicidal spectrum,
A drug can solve weed problem, compensate for defect when single dose uses and limitation.
3, the Herbicidal combinations that the present invention provides, two kinds of active ingredient mechanism of action are different, permissible
Overcome long-term single use easily to produce the shortcoming of resistance, extend the service life of medicament, weeds are resisted
The comprehensive control important in inhibiting of property.
4, the Herbicidal combinations that the present invention provides, drug effect plays rapidly, and the lasting period is long, and use cost is low,
Easy to use, time saving and energy saving, its popularization and application have huge economic benefit and social benefit.
Detailed description of the invention
Below in conjunction with embodiment, present disclosure is described in further detail, mentioned interior in embodiment
Hold not limitation of the invention, material prescription select can treatment in accordance with local conditions and to result without substantial shadow
Ring.In these embodiments, unless otherwise indicated, all percentage ratios are all weight percentage.
Embodiment one: formulation screening test.
For further appreciating that thifensulfuronmethyl and the synergy to weeds of the bromoxynil octanoate mixture, the present invention
People has carried out formulation screening test to thifensulfuronmethyl and bromoxynil octanoate mixture:
Test material:
Herba Capsellae [Capsella bursa-pastoris] (field collection seed).
Herba Galii Teneri [Galium aparine L.Var.tenerum] (field collection seed).
Test apparatus:
Controlled illumination box；POTTER precision laboratory spray tower；Electronic balance (sensibility reciprocal 0.1mg)；
Micropipette rifle etc..
Test method:
The purity first weighing certain mass is the 95% former medicine of thifensulfuronmethyl, the 95% former medicine of bromoxynil octanoate, adds
Enter and dilute with the Tween 80 aqueous solution of 0.1% after acetone fully dissolves, be configured to single dose mother solution respectively,
Arranging series proportioning according to mixture purpose, each proportioning arranges 5～7 Concentraton gradient.Kill according to single dose
Grass spectrum selects representative susceptible weeds seed, cultivates standby to 2 leaf 1 hearts.Selection is numbered
Weeds stem and leaf process after, be placed on incubated at room temperature 20 days in illumination box, calculate prevention effect (fresh
Weight preventive effect or strain preventive effect), then calculate dense EC in suppression with method of least square50(95% confidence limit), then
Co-toxicity coefficient (CTC) is calculated by the abundant method of Sun Yun.
Co-toxicity coefficient (CTC) >=120 shows as potentiation；Co-toxicity coefficient (CTC)≤80 shows
For antagonism；80 ＜ co-toxicity coefficient (CTC) ＜ 120 show as summation action.
Actual measurement toxicity index (ATI)=(standard agent EC50/ reagent agent EC50)×100。
Theoretical toxicity index (TTI)=(percentage composition of A in the toxicity index × mixture of the A)+(poison of B
The percentage composition of B in power index × mixture).
Co-toxicity coefficient (CTC)=[mixture actual measurement toxicity index (ATI)/mixture theory toxicity index (TTI)]
×100。
Measurement result shows, thifensulfuronmethyl and bromoxynil octanoate between mixed ratio 1:20～20:1,
There is obvious potentiation or summation action.Thifensulfuronmethyl exists respectively with the mixed ratio of bromoxynil octanoate
During 1:15 and 1:20, the potentiation to Herba Capsellae and Herba Galii Teneri is obvious, and co-toxicity coefficient respectively reaches
153.63 and 139.14.
The synergy of Herba Capsellae is measured by table 1, different ratio thifensulfuronmethyl with bromoxynil octanoate.
The synergy of Herba Galii Teneri is measured by table 2, different ratio thifensulfuronmethyl with bromoxynil octanoate.
Example of formulations one: (48% thifensulfuronmethyl bromoxynil octanoate wettable powder).
Mix homogeneously in blender will be entered after the coarse pulverization in proportion of above-mentioned formula, then after comminution by gas stream
I.e. prepare and be mixed to prepare 48% thifensulfuronmethyl bromoxynil octanoate wettable powder.
Example of formulations two (32% thifensulfuronmethyl bromoxynil octanoate dispersibles oil-suspending agent).
Above-mentioned formula Central Plains medicine, solvent, emulsifying agent are dissolved into homogeneous oil phase；Under high velocity agitation,
It is mixed to prepare 32% thifensulfuronmethyl bromoxynil octanoate and dispersibles oil-suspending agent.
Example of formulations three (48% thifensulfuronmethyl bromoxynil octanoate suspending agent).
Above-mentioned formula is pulverized the most in advance, adds in sand mill and grind, mix through high shear
After conjunction, allotment prepares 48% thifensulfuronmethyl bromoxynil octanoate suspending agent.
Example of formulations four (50% thifensulfuronmethyl bromoxynil octanoate water dispersible granules).
By above-mentioned formula dry pulverization process in proportion, pelletize, dry, prepared 50% thifensulfuronmethyl of screening is pungent
Acylbromide cyanophenyl water-dispersible granules.
Field efficacy embodiment one: the field control effectiveness test to winter wheat field annual broadleaf weed.
Reagent agent and dispenser dosage:
(1) 48% thifensulfuronmethyl bromoxynil octanoate wettable powder (3% thifensulfuronmethyl 45% decoyl bromobenzene
Nitrile), mu 26.9 grams of preparation (1#).
(2) 32% thifensulfuronmethyl bromoxynil octanoates dispersible oil-suspending agent (2% thifensulfuronmethyl 30% decoyl
Brominal), mu 40.3 grams of preparation (2#).
(3) 48% thifensulfuronmethyl bromoxynil octanoate suspending agents (3% thifensulfuronmethyl 45% bromoxynil octanoate),
Mu 26.9 grams of preparation (3#).
(4) 50% thifensulfuronmethyl bromoxynil octanoate water dispersible granules (4% thifensulfuronmethyl 46% decoyl bromobenzene
Nitrile), mu 24.1 grams of preparation (4#).
(5) 15% thifensulfuronmethyl wettable powders, mu 1.9 grams of preparation (5#).
(6) 25% bromoxynil octanoate cream, mu 31.3 grams of preparation (6#).
Dispenser period: the weeds 3～4 leaf phase, be watered even spraying.
Prevent and kill off object: Herba Capsellae, Herba Galii Teneri, Herba Acalyphae, Amaranthus retroflexus.
Result of the test is shown in Table 3.As can be seen from the test results: after medicine 17 days, the weeding group of the present invention
Compound reaches more than 87.1% to the average preventive effect of winter wheat field annual broadleaf weed.Weeding of the present invention
Compositions, significantly better than the single dose of comparison, expands weed control spectrum, and potentiation is notable, quick-acting and holding effect
Phase is substantially better than single dose.
Table 3, preventing and treating winter wheat field annual broadleaf weed field control effectiveness test result.
Claims (3)
1. one kind contains thifensulfuronmethyl and the Herbicidal combinations of bromoxynil octanoate, it is characterized in that: effective ingredient is thifensulfuronmethyl and bromoxynil octanoate, the mass fraction of thifensulfuronmethyl and bromoxynil octanoate is than being 3%～80% for 1:15 or 1:20, thifensulfuronmethyl and bromoxynil octanoate total mass fraction percentage composition in the composition.
It is the most according to claim 1 a kind of containing thifensulfuronmethyl with the Herbicidal combinations of bromoxynil octanoate, it is characterised in that: the dosage form of described Herbicidal combinations is the one in suspending agent, wettable powder, water dispersible granules.
3.RightRequire that a kind of Herbicidal combinations containing thifensulfuronmethyl and bromoxynil octanoate described in 1 is in the application prevented and kill off on wheat paddock annual broadleaf weed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410119386.8A CN103918689B (en) | 2014-03-27 | 2014-03-27 | A kind of containing thifensulfuronmethyl with the Herbicidal combinations of bromoxynil octanoate |
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| CN201410119386.8A CN103918689B (en) | 2014-03-27 | 2014-03-27 | A kind of containing thifensulfuronmethyl with the Herbicidal combinations of bromoxynil octanoate |
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| CN103918689A CN103918689A (en) | 2014-07-16 |
| CN103918689B true CN103918689B (en) | 2016-09-14 |
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| CN105284852A (en) * | 2015-10-30 | 2016-02-03 | 泰安市农业科学研究院 | Triaziflam and thifensulfuron methyl-containing weeding missible oil |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101562978A (en) * | 2006-10-27 | 2009-10-21 | 先正达参股股份有限公司 | Herbicidal compositions |
| CN103493837A (en) * | 2013-09-12 | 2014-01-08 | 薛列驹 | Compound herbicide for paddy field |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101562978A (en) * | 2006-10-27 | 2009-10-21 | 先正达参股股份有限公司 | Herbicidal compositions |
| CN103493837A (en) * | 2013-09-12 | 2014-01-08 | 薛列驹 | Compound herbicide for paddy field |
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