CN103749453A - Weeding composition containing clopyralid and bromoxynil octanoate - Google Patents
Weeding composition containing clopyralid and bromoxynil octanoate Download PDFInfo
- Publication number
- CN103749453A CN103749453A CN201310737632.1A CN201310737632A CN103749453A CN 103749453 A CN103749453 A CN 103749453A CN 201310737632 A CN201310737632 A CN 201310737632A CN 103749453 A CN103749453 A CN 103749453A
- Authority
- CN
- China
- Prior art keywords
- clopyralid
- bromoxynil octanoate
- bromoxynil
- suspending agent
- herbicidal combinations
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a weeding composition containing clopyralid and bromoxynil octanoate, which comprises active ingredients (clopyralid and bromoxynil octanoate) and the balance of pesticide adjuvants, wherein the weight ratio of the clopyralid to the bromoxynil octanoate is 1:5-5:1, and the total mass of the clopyralid and bromoxynil octanoate accounts for 3-80 mass percent of the weeding composition. The weeding composition can be prepared into dispersible oil suspending agent, suspending agent, wettable powder or water-dispersible granules according to application demands to prevent and eliminate annual broadleaf weeds in corn fields. The composition has obviously better effect on preventing and eliminating annual broadleaf weeds in corn fields than weedicides with single purpose, reduces the consumption, and postpones the drug resistance of weeds.
Description
Technical field
The present invention relates to a kind of Herbicidal combinations, is as active ingredient, for control of maize field annual broadleaf weed take clopyralid and bromoxynil octanoate.
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 is used 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 herbicide resistance, time and labour saving advantage.
Clopyralid is a kind of artificial synthetic auxin, and its chemical constitution and many natural auxins are similar, but in the tissue of plant, have better persistence.It mainly the root by plant and leaf absorb then and conduct in plant corpus, so its conductive performance is stronger.After weeds dispenser, it is moved up and down and is transmitted to rapidly whole plant by the blade of plant or root absorption in plant corpus.Thereby the synthetic of DNA, RNA that the clopyralid of low concentration can stimulating plant and protein causes fissional out of control and unordered growth, finally causes restraining destroyed; The clopyralid of high concentration can suppress division and the growth of cell.
Bromoxynil octanoate is that after selectivity seedling, cauline leaf is processed contact killing type weed killer herbicide, mainly by blade, absorbed, in plant corpus, carry out extremely limited conduction, 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.
Variety classes weed killer herbicide mixture, have herbicidal spectrum wide, promote actual effect, delay herbicide resistance, time and labour saving advantage.By formulation of pesticide, screening, 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 clopyralid and bromoxynil octanoate, find that clopyralid and bromoxynil octanoate carry out mixture, in certain mixed ratio scope, corn field annual broadleaf weed is 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 corn field annual broadleaf weed etc.
Technical scheme: a kind of Herbicidal combinations that contains clopyralid and bromoxynil octanoate, active ingredient is clopyralid and bromoxynil octanoate, the ratio of quality and the number of copies of clopyralid and bromoxynil octanoate is 5:1～1:5, clopyralid and the mass percent of bromoxynil octanoate quality summation in Herbicidal combinations are 3%～80%, and all the other are in agricultural chemicals, to allow to use and acceptable auxiliary element.
Herbicidal combinations of the present invention is prepared into and is applicable to upper any one formulation used of agricultural by known method, and reasonable formulation dispersibles oil-suspending agent, suspending agent, wetting powder, water dispersible granules.The processing technology of the various preparations of the present composition is prior art, according to different situations, can change to some extent.
The auxiliary agent using in Herbicidal combinations of the present invention comprises that solvent, emulsifier, wetting agent, stabilizing agent, dispersant, thickener, pH adjusting agent, defoamer, antifreezing agent, packing agent etc. are of value to the known substance of active ingredient stable and performance drug effect in preparation, be all various compositions conventional in pesticidal preparations or that permission is used, concrete composition and consumption require to determine by test according to formula.
Product described in the invention can finished product preparation form provide, in composition, each material mixes, the form that the composition of composition also can single dose provides, and before use, directly in tank or bucket, mixes, and is then diluted to needed concentration.The frequency of administration of the present composition and amount of application change with weather conditions and weeds situation, can be by using suitable dosage to reach the object of preventing and kill off.
Herbicidal combinations of the present invention is applicable to prevent and kill off farmland weed, especially wheat paddock broad leaved weed.
Herbicidal combinations provided by the invention, adopts the method for spraying to use conventionally, also can adopt as required other operation techniques of the upper application of agricultural.
Compared with prior art, the invention has the advantages that:
1, two kinds of active ingredient compositely has synergistic function, than the independent use of single dose, has obviously improved the control efficiency to weeds, has expanded herbicide spectrum.
2, reduced agricultural chemicals usage amount, reduced use cost, alleviated pollution to environment, delayed herbicide resistance generation, increased service life of agricultural chemicals.
Embodiment
In order to understand better essence of the present invention, below in conjunction with embodiment, content of the present invention is described further, but can not be considered as limitation of the present invention.
Biologicall test embodiment mono-: formulation screening test
For further understanding clopyralid and the synergy of bromoxynil octanoate mixture to weeds, the inventor has carried out formulation screening test to clopyralid and bromoxynil octanoate mixture:
Test material:
Field thistle [Cirsium segetum] (field collection seed).
Kitchen garden [Portulaca oleracea L.] (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% clopyralid, the former medicine of 95% bromoxynil octanoate, 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.According to single dose herbicide spectrum, select representative susceptible weeds seed, be cultured to 2 leaf 1 hearts standby.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, clopyralid and bromoxynil octanoate, between mixed ratio 1:5～5:1, have obvious synergistic effect, and especially mixed ratio is when 1:1, obvious to the synergistic effect of field thistle and kitchen garden, and co-toxicity coefficient reaches respectively 188 and 157.65.
Table 1, different proportioning clopyralid and bromoxynil octanoate are measured the synergy of field thistle.
Table 2, different proportioning clopyralid and bromoxynil octanoate are measured the synergy of kitchen garden.
Example of formulations one: (40% clopyralid bromoxynil octanoate wetting powder)
Above-mentioned formula is entered in blender after coarse crushing and mixed in proportion, then after air-flow crushing, make to mix and make 40% clopyralid bromoxynil octanoate wetting powder.
Example of formulations two: (55% clopyralid bromoxynil octanoate 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 55% clopyralid bromoxynil octanoate and dispersibles oil-suspending agent.
Example of formulations three: (50% clopyralid bromoxynil octanoate suspending agent)
Above-mentioned formula is pulverized in proportion in advance, then added in sand mill and grind, after high shear mixing, allotment makes 50% clopyralid bromoxynil octanoate suspending agent.
Example of formulations four: (50% clopyralid bromoxynil octanoate water dispersible granules)
By above-mentioned formula, dry pulverization process, granulation, dry, screening make 50% clopyralid bromoxynil octanoate water-dispersible granules in proportion.
Field control effectiveness test embodiment mono-: to the field control effectiveness test of corn field annual broadleaf weed
Reagent agent and dispenser dosage:
(1) 40% clopyralid bromoxynil octanoate wetting powder (20% clopyralid 20% bromoxynil octanoate), mu 80.8 grams, preparation (1#).
(2) 55% clopyralid bromoxynil octanoates dispersible oil-suspending agent (30% clopyralid 25% bromoxynil octanoate), mu 58 grams, preparation (2#).
(3) 50% clopyralid bromoxynil octanoate suspending agents (30% clopyralid 20% bromoxynil octanoate), mu 64.3 grams, preparation (3#).
(4) 50% clopyralid bromoxynil octanoate water dispersible granules (25% clopyralid 25% bromoxynil octanoate), mu 68.6 grams, preparation (4#).
(5) 30% clopyralid soluble granules, mu 33 grams, preparation (5#).
(6) 25% bromoxynil octanoate missible oil, mu 25 grams, preparation (6#).
(7) clear water contrast.
Dispenser period: 3～4 leaf phases of weeds, be watered even spraying.
Prevent and kill off object: field thistle, kitchen garden, acalypha copperleaf, Amaranthus retroflexus.
Result of the test is in Table 3.As can be seen from the test results: after medicine 12 days, Herbicidal combinations of the present invention reached more than 80.6% the average preventive effect of corn field annual broadleaf 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 of maize field annual broadleaf weed field control effectiveness test result (after medicine 12 days).
Claims (3)
1. a Herbicidal combinations that contains clopyralid and bromoxynil octanoate, it is characterized in that: active ingredient is clopyralid and bromoxynil octanoate, all the other are insecticides adjuvant, the ratio of quality and the number of copies of clopyralid and bromoxynil octanoate is 1:5～5:1, and clopyralid and the mass percent of bromoxynil octanoate quality summation in Herbicidal combinations are 3%～80%.
2. a kind of Herbicidal combinations that contains clopyralid and bromoxynil octanoate 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.
3. a kind of Herbicidal combinations that contains clopyralid and bromoxynil octanoate according to claim 1, is characterized in that: be applicable to prevent and kill off corn field annual broadleaf weed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310737632.1A CN103749453B (en) | 2013-12-26 | 2013-12-26 | A kind of containing clopyralid with the Herbicidal combinations of bromoxynil octanoate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310737632.1A CN103749453B (en) | 2013-12-26 | 2013-12-26 | A kind of containing clopyralid with the Herbicidal combinations of bromoxynil octanoate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103749453A true CN103749453A (en) | 2014-04-30 |
| CN103749453B CN103749453B (en) | 2016-10-05 |
Family
ID=50516911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310737632.1A Active CN103749453B (en) | 2013-12-26 | 2013-12-26 | A kind of containing clopyralid with the Herbicidal combinations of bromoxynil octanoate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103749453B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112753700A (en) * | 2021-01-08 | 2021-05-07 | 贾海滨 | Herbicide for flax and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008071377A2 (en) * | 2006-12-11 | 2008-06-19 | Isagro S.P.A. | Herbicidal compositions |
| CN102740697A (en) * | 2009-12-29 | 2012-10-17 | 先正达参股股份有限公司 | Pesticidal composition |
-
2013
- 2013-12-26 CN CN201310737632.1A patent/CN103749453B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008071377A2 (en) * | 2006-12-11 | 2008-06-19 | Isagro S.P.A. | Herbicidal compositions |
| CN102740697A (en) * | 2009-12-29 | 2012-10-17 | 先正达参股股份有限公司 | Pesticidal composition |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112753700A (en) * | 2021-01-08 | 2021-05-07 | 贾海滨 | Herbicide for flax and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103749453B (en) | 2016-10-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103392732A (en) | Herbicidal composition containing glufosinate-ammonium and saflufenacil | |
| CN103416412B (en) | A kind of Herbicidal combinations containing penoxsuam and pyribenzoxim | |
| CN103931632A (en) | Herbicidal composition containing pinoxaden and pyroxsulam | |
| CN104488884A (en) | Farm chemical composition containing bispyribac-sodium and triafamone | |
| CN103931650A (en) | Weeding composition containing glufosinate ammonium and clethodim | |
| CN103636647A (en) | Topramezone-rimsulfuron-containing weeding composition | |
| CN104430450A (en) | Herbicidal composition of triafamone and pyrazosulfuron | |
| CN104522026A (en) | Weed control composition containing propyrisulfuron and oxyfluorfen | |
| CN103444728B (en) | A kind of composition that contains florasulam and phenoxy carboxylic acid herbicides | |
| CN104381296A (en) | Weeding composition containing picloram and glyphosate | |
| CN103749475B (en) | A kind ofly contain pyribenzoxim with the Herbicidal combinations of fenoxaprop | |
| CN103766354A (en) | Weeding composition containing oxaziclomefone and bentazone | |
| CN103503899A (en) | Pesticide composition containing pyribenzoxim and halosulfuron-methyl | |
| CN103749476B (en) | A kind of pair careless ether that contains is with the Herbicidal combinations of fenoxaprop | |
| CN103392733A (en) | Herbicidal composition containing glufosinate-ammonium and carfentrazone | |
| CN103749453A (en) | Weeding composition containing clopyralid and bromoxynil octanoate | |
| CN104012563A (en) | A weeding composition comprising flucetosulfuron and mefenacet | |
| CN103960267A (en) | Herbicidecomposition containing thifensulfuron-methyl and pyroxsulam | |
| CN104012565A (en) | A weeding composition comprising flucetosulfuron and pretilachlor | |
| CN103798238A (en) | Pesticide composition with pyraflufen-ethyl and phenoxy carboxylic acid herbicide | |
| CN103636650A (en) | Weeding composition containing fentrazamide and halosulfuron-methyl | |
| CN103688940B (en) | A kind of containing pyraflufen-ethyl with the Herbicidal combinations of fluroxypyr | |
| CN103918689B (en) | A kind of containing thifensulfuronmethyl with the Herbicidal combinations of bromoxynil octanoate | |
| CN103960257A (en) | Herbicide composition containingbromoxynil octanoate and pyroxsulam | |
| CN103636645A (en) | Monosulfuron-clodinafop-propargyl ester weeding composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |