CN103960257A - Herbicide composition containingbromoxynil octanoate and pyroxsulam - Google Patents
Herbicide composition containingbromoxynil octanoate and pyroxsulam Download PDFInfo
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- CN103960257A CN103960257A CN201410138352.3A CN201410138352A CN103960257A CN 103960257 A CN103960257 A CN 103960257A CN 201410138352 A CN201410138352 A CN 201410138352A CN 103960257 A CN103960257 A CN 103960257A
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- bromoxynil octanoate
- grass amine
- sulphur grass
- pyridine sulphur
- pyroxsulam
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Abstract
The invention disclosesherbicide composition containing bromoxynil octanoate and pyroxsulam. The herbicide composition comprises effective components, namely, the bromoxynil octanoate and the pyroxsulam, and the rest are pesticideadjuvants; the mass part ratio of the bromoxynil octanoate to the pyroxsulam is in a range of (1-30):1, and the total mass of the bromoxynil octanoate and the pyroxsulam accounts for 4%-95% of the mass of pesticide composition. According to application requirements, the herbicide composition can be prepared into one of a dispersible oil suspending agent, a suspending agent, wettable powder and water dispersible granules and is used for preventing and killing offannual grass and broadleaf weeds in winter wheat fields. The composition is obviously better than various single agents in prevention and killing off effects on the annual grass and broadleaf weeds in the winter wheat fields, the dosage is reduced, and the drug resistance of the weeds is delayed.
Description
Technical field
The present invention relates to a kind of composition that contains bromoxynil octanoate and pyridine sulphur grass amine, is as active ingredient, for preventing and treating winter wheat field annual gramineae and broad leaved weed taking the careless amine of bromoxynil octanoate and pyridine sulphur.
Background technology
Chemical method weeding is one of upper Main Means of controlling weeds of agricultural.In recent years, because some weed killer herbicide kind large area are used separately, caused a lot of weeds to develop immunity to drugs.Meanwhile, grass when weeds occur is complicated mutually, grassy weed, broad leaved weed, the mixed life of nutgrass flatsedge multiclass weeds, and single variety weed killer herbicide uses can not solve farmland weed, all can show defect and limitation in a certain respect.Variety classes weed killer herbicide mixture, have herbicidal spectrum wide, promote actual effect, delay the advantage such as herbicide resistance, time and labour saving.
Bromoxynil octanoate is that after selectivity seedling, cauline leaf is processed contact killing type weed killer herbicide, mainly absorbed by grass cutting blade, in plant corpus, conduct, by each process of inhibited photosynthesis, comprise and suppress photophosphorylation reaction and electronics transmission, particularly photosynthetic Hill reaction, make plant tissue downright bad rapidly, thereby reach herbicide object, when temperature is higher, speeding-up blade is withered.
Pyridine sulphur grass amine is sulfonamides inner sucting conduction type, selectivity wheat paddock herbicide after seedling.By grass cutting blade, sheath portion, stem or root absorption, in growing point accumulation, suppress acetolactate synthestase, cannot synthesize branched-chain amino acid, and then affect the synthetic of protein, cause that weeds stop growing, yellow, then death.
Variety classes weed killer herbicide mixture, have herbicidal spectrum wide, promote actual effect, delay herbicide resistance, time and labour saving advantage.Screening by formulation of pesticide, can effectively improve actual control efficiency, reduce dosage, reduce costs, delay disease, worm, the drug-fast generation of crop smothering, is the important means that agricultural synthesis is administered.The inventor conducts in-depth research the formula screening of bromoxynil octanoate and pyridine sulphur grass amine, find that bromoxynil octanoate and pyridine sulphur grass amine carry out mixture, in certain mixed ratio scope, winter wheat field annual gramineae and broad leaved weed are had to synergy or summation action, after further study, completed the present invention.
Summary of the invention
The object of the invention is to solve in prior art to farmland weed develop immunity to drugs problem and actual control efficiency poor, provide a kind of efficient, low toxicity, quick-acting is good and the lasting period is long, is conducive to the Herbicidal combinations of the farmland weed comprehensive regulation.
Another object of the present invention be by this Herbicidal combinations for preventing and kill off farmland weed, be particularly useful for winter wheat field annual gramineae and broad leaved weed.
Technical scheme: for achieving the above object, the invention provides a kind of Herbicidal combinations that contains bromoxynil octanoate and pyridine sulphur grass amine, active ingredient bromoxynil octanoate and pyridine sulphur grass amine, the ratio of quality and the number of copies of bromoxynil octanoate and pyridine sulphur grass amine is 1:30～30:1, bromoxynil octanoate and the gross mass mark percentage composition of pyridine sulphur grass amine in Herbicidal combinations are 4%～95%, and all the other are in agricultural chemicals, to allow to use and acceptable auxiliary element.
Herbicidal combinations those skilled in the art of the present invention can be according to known method, selects suitable pesticidal preparations auxiliary element, makes the upper conventional formulation such as the agricultural that dispersibles oil-suspending agent, suspending agent, wetting powder, water dispersible granules.
The auxiliary agent using in Herbicidal combinations provided by the invention comprises solvent, emulsifier, wetting agent, stabilizing agent, dispersant, safener, thickener, pH adjusting agent, defoamer, antifreezing agent, deionized water, filler etc., all various auxiliary agents conventional in Pesticide formulation, concrete composition and consumption, according to formula requirement, are determined through simple test.
The production technology of the various application forms of composition pesticide provided by the invention all belongs to existing known technology, does not repeat them here.
Composition pesticide provided by the invention, adopts cauline leaf spray method to use in 3～4 leaf phases of weeds, also can adopt as required other operation techniques of the upper application of agricultural.
Herbicidal combinations provided by the invention has following beneficial effect:
1, Herbicidal combinations provided by the invention, in certain ratio range, show obvious synergistic effect, the control efficiency of composition is significantly improved than single dose, reduce the using dosage of agricultural chemicals, reduce medication number of times, reduce drug cost, reduced the adverse effect of agricultural chemicals to ecotope.
2, Herbicidal combinations provided by the invention, the combination of two kinds of active ingredients, has expanded herbicidal spectrum, and a drug can solve weeds problem, has made up defect and limitation when single dose is used.
3, Herbicidal combinations provided by the invention, two kinds of active ingredient mechanism of action are different, can overcome long-term single use and easily produce the shortcoming of resistance, extend the service life of medicament, to the comprehensive regulation important in inhibiting of Weed Resistance.
4, Herbicidal combinations provided by the invention, rapidly, the lasting period is long in drug effect performance, and use cost is low, easy to use, time saving and energy saving, and it applies huge economic benefit and social benefit.
Embodiment
In order to make object of the present invention, technical scheme and advantage more short and sweet, the present invention describes with following specific embodiment, but the present invention only limits to absolutely not these examples.The following stated is only the good embodiment of the present invention, only for describing the present invention, can not be interpreted as limitation of the scope of the invention.It should be pointed out that all any amendments of making within the spirit and principles in the present invention, be equal to replacement and improvement etc., within all should being included in protection scope of the present invention.
In these embodiments, unless otherwise indicated, all percentage is all weight percentage.
Biologicall test embodiment mono-: synergy is measured.
For further understanding bromoxynil octanoate and the synergy of pyridine sulphur grass amine mixture to weeds, the inventor has carried out formulation screening test to bromoxynil octanoate and pyridine sulphur grass amine mixture:
Test material:
Clearvers [Galium aparine L.Var.tenerum] (field collection seed).
Amur foxtail [Alopecurus aequalis Sobol] (field collection seed).
Test apparatus:
Controlled illumination box; The accurate laboratory of POTTER spray tower; Electronic balance (sensibility reciprocal 0.1mg); Micropipette rifle etc.
Test method:
The purity that first takes certain mass is the former medicine of 95% bromoxynil octanoate, the former medicine of 96.5% pyridine sulphur grass amine, add acetone fully to dissolve the Tween 80 aqueous solution dilution of rear use 0.1%, be mixed with respectively single dose mother liquor, according to mixture object, serial proportioning be set, each proportioning arranges 5～7 concentration gradients.Select representative susceptible weeds seed according to single dose herbicide spectrum, be cultured to 2 leaf 1 hearts for subsequent use.After selecting the weeds cauline leaf of numbering to process, be placed in illumination box incubated at room temperature 20 days, calculate control efficiency (fresh weight preventive effect or strain preventive effect), then with method of least squares calculate suppress in dense EC
50(95% confidence limit), then calculate co-toxicity coefficient (CTC) by the abundant method of Sun Yun.
Co-toxicity coefficient (CTC) >=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80 < co-toxicity coefficient (CTC) < 120 show as summation action.
Actual measurement toxicity index (ATI)=(standard medicament EC
50/ reagent agent EC
50) × 100.
Theoretical toxicity index (TTI)=(percentage composition of A in toxicity index × mixture of A)+(percentage composition of B in toxicity index × mixture of B).
Co-toxicity coefficient (CTC)=[the theoretical toxicity index of mixture actual measurement toxicity index (ATI)/mixture (TTI)] × 100.
Measurement result shows, bromoxynil octanoate and pyridine sulphur grass amine, between mixed ratio 1～30:1, have obvious synergy or summation action.The mixed ratio of bromoxynil octanoate and pyridine sulphur grass amine is in the time of 30:1, and obvious to the synergistic effect of clearvers and amur foxtail, co-toxicity coefficient reaches respectively 157.31 and 144.7.
Table 1, different proportioning bromoxynil octanoate and pyridine sulphur grass amine are measured the synergy of clearvers.
Table 2, different proportioning bromoxynil octanoate and pyridine sulphur grass amine are measured the synergy of amur foxtail.
Example of formulations one: (31% bromoxynil octanoate pyridine sulphur grass amine wetting powder).
Above-mentioned formula is entered in blender after coarse crushing and mixed in proportion, then after air-flow crushing, mix and make 31% bromoxynil octanoate pyridine sulphur grass amine wetting powder.
Example of formulations two: (35% bromoxynil octanoate pyridine sulphur grass amine dispersibles oil-suspending agent).
Above-mentioned formula Central Plains medicine, solvent, emulsifiers dissolve are become to even oil phase; Under high-speed stirred, mixing makes 35% bromoxynil octanoate pyridine sulphur grass amine and dispersibles oil-suspending agent.
Example of formulations three (31% bromoxynil octanoate pyridine sulphur grass amine suspending agent).
Above-mentioned formula is pulverized in proportion in advance, then added in sand mill and grind, after high shear mixing, allotment makes 31% bromoxynil octanoate pyridine sulphur grass amine suspending agent.
Example of formulations four: (40% bromoxynil octanoate pyridine sulphur grass amine water dispersible granules).
By above-mentioned formula, dry pulverization process, granulation, dry, screening make 40% bromoxynil octanoate pyridine sulphur grass amine water-dispersible granules in proportion.
Field control effectiveness test embodiment mono-: to the field control effectiveness test of winter wheat field annual gramineae and broad leaved weed.
Reagent agent and dispenser dosage:
(1) 31% bromoxynil octanoate pyridine sulphur grass amine wetting powder (30% bromoxynil octanoate 1% pyridine sulphur grass amine), mu 165.7 grams, preparation (1#).
(2) 35% bromoxynil octanoate pyridine sulphur grass amine dispersible oil-suspending agent (33% bromoxynil octanoate 2% pyridine sulphur grass amine), mu 118.8 grams, preparation (2#).
(3) 31% bromoxynil octanoate pyridine sulphur grass amine suspending agents (30% bromoxynil octanoate 1% pyridine sulphur grass amine), mu 165.7 grams, preparation (3#).
(4) 40% bromoxynil octanoate pyridine sulphur grass amine water dispersible granules (38% bromoxynil octanoate 2% pyridine sulphur grass amine), mu 108.4 grams, preparation (4#).
(5) 25% bromoxynil octanoate missible oil, mu 104 grams, preparation (5#).
(6) 7.5% pyridine sulphur grass amine water dispersible granules, mu 10.7 grams, preparation (6#).
Dispenser period: 3～4 leaf phases of weeds, be watered even spraying.
Prevent and kill off object: clearvers, amur foxtail, wild oat, Veronica.
Result of the test is in table 3.As can be seen from the test results: after medicine 13 days, Herbicidal combinations of the present invention at least reached more than 80.5% the average preventive effect of winter wheat field annual gramineae and broad leaved weed.Herbicidal combinations of the present invention, significantly better than the single dose of contrast, expands herbicide spectrum, and synergistic effect is remarkable, and quick-acting and lasting period are obviously better than single dose.
Table 3, control winter wheat field annual gramineae and broad leaved weed field control effectiveness test result.
Claims (5)
1. a Herbicidal combinations that contains bromoxynil octanoate and pyridine sulphur grass amine, is characterized in that: active ingredient is bromoxynil octanoate and pyridine sulphur grass amine, and all the other are insecticides adjuvant.
2. a kind of Herbicidal combinations that contains bromoxynil octanoate and pyridine sulphur grass amine according to claim 1, is characterized in that: the mass fraction ratio of bromoxynil octanoate and pyridine sulphur grass amine is 1:30～30:1.
3. a kind of Herbicidal combinations that contains bromoxynil octanoate and pyridine sulphur grass amine according to claim 1, is characterized in that: bromoxynil octanoate and the gross mass mark percentage composition of pyridine sulphur grass amine in herbicidal composition are 4%～95%.
4. a kind of Herbicidal combinations that contains bromoxynil octanoate and pyridine sulphur grass amine according to claim 1, is characterized in that: its formulation is the one dispersibling in oil-suspending agent, suspending agent, wetting powder, water dispersible granules.
5. the Herbicidal combinations that a kind of described in 1 contained bromoxynil octanoate and pyridine sulphur grass amine as requested, is applicable to prevent and kill off winter wheat field annual gramineae and broad leaved weed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410138352.3A CN103960257A (en) | 2014-04-08 | 2014-04-08 | Herbicide composition containingbromoxynil octanoate and pyroxsulam |
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| CN201410138352.3A CN103960257A (en) | 2014-04-08 | 2014-04-08 | Herbicide composition containingbromoxynil octanoate and pyroxsulam |
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| CN103960257A true CN103960257A (en) | 2014-08-06 |
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| CN201410138352.3A Pending CN103960257A (en) | 2014-04-08 | 2014-04-08 | Herbicide composition containingbromoxynil octanoate and pyroxsulam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106614633A (en) * | 2016-12-11 | 2017-05-10 | 广东中迅农科股份有限公司 | Weeding composition |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1398266A (en) * | 2000-11-03 | 2003-02-19 | 美国陶氏益农公司 | N-(5,7-dimethoxy[1,2,4] triazolo[1,5-a]pyrimidin-2-yl) arylsulfonamide compounds and their use as herbicides |
| CN102265875A (en) * | 2011-06-25 | 2011-12-07 | 陕西美邦农药有限公司 | Weeding composition containing florasulam and bromoxynil octanoate |
| CN103190418A (en) * | 2013-04-17 | 2013-07-10 | 海利尔药业集团股份有限公司 | Weeding composition containing pyroxsulam and florasulam |
-
2014
- 2014-04-08 CN CN201410138352.3A patent/CN103960257A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1398266A (en) * | 2000-11-03 | 2003-02-19 | 美国陶氏益农公司 | N-(5,7-dimethoxy[1,2,4] triazolo[1,5-a]pyrimidin-2-yl) arylsulfonamide compounds and their use as herbicides |
| CN102265875A (en) * | 2011-06-25 | 2011-12-07 | 陕西美邦农药有限公司 | Weeding composition containing florasulam and bromoxynil octanoate |
| CN103190418A (en) * | 2013-04-17 | 2013-07-10 | 海利尔药业集团股份有限公司 | Weeding composition containing pyroxsulam and florasulam |
Non-Patent Citations (1)
| Title |
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| 吴明荣等: "我国小麦田除草剂应用及杂草抗药性现状", 《农药》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106614633A (en) * | 2016-12-11 | 2017-05-10 | 广东中迅农科股份有限公司 | Weeding composition |
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Application publication date: 20140806 |
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