CN105409960A - Weeding composition containing diflufenican and chodinafop-propargyl - Google Patents
Weeding composition containing diflufenican and chodinafop-propargyl Download PDFInfo
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- CN105409960A CN105409960A CN201510999133.9A CN201510999133A CN105409960A CN 105409960 A CN105409960 A CN 105409960A CN 201510999133 A CN201510999133 A CN 201510999133A CN 105409960 A CN105409960 A CN 105409960A
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- propargyl
- diflufenican
- clodinafop
- chodinafop
- herbicidal combinations
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
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- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
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- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a weeding composition containing diflufenican and chodinafop-propargyl. The weeding composition containing diflufenican and chodinafop-propargyl comprises diflufenican, chodinafop-propargyl and an auxiliary agent, wherein a weight part ratio of the diflufenican to the chodinafop-propargyl is 10:1-1:10, and the weight sum of the diflufenican and the chodinafop-propargyl accounts for 1-80% of that of the weeding composition; the diflufenican and the chodinafop-propargyl have obvious synergistic effect after complex formulation, amount of the active ingredients of the composition after complex formulation is obviously less than that of an individually used component, and the weeding composition is suitable for preventing and removing annual weeds in a wheat field, and is relatively applicable to a post-emergence spraying method.
Description
Technical field
The agricultural chemicals Herbicidal combinations that the present invention relates to, be with diflufenican and clodinafop-propargyl for active ingredient, for preventing and treating farmland weed, be particularly useful for preventing and kill off wheat paddock annual weed etc.
Background technology
Chemical method weeding is agriculturally one of Main Means controlling weeds.In recent years, because some weed killer herbicide kind large area are used alone, a lot of weeds have been caused to develop immunity to drugs.Simultaneously, grass when weeds occur is mutually complicated, not only annual and perennial weed is mixed raw, draft, liana and shrub have concurrently, and weeds emerge uneven, seed, low age, the staggered generation of weeds at advanced age, so when weed killer herbicide kind is used alone, defect in a certain respect and limitation all can be shown.
Diflufenican belongs to herxheimer-liked reaction inhibitor, causes Destruction of Chlorophyll and cell rupture, Plant death.It is the selectivity cornfield herbicidal of wide spectrum.In soil, the longevity of residure is longer.The various broad leaved weeds such as the scope of application is applicable to barley, wheat paddock prevents and kill off clearvers, volume stem knotweed, kitchen garden, black nightshade, chickweed, common vetch, field bindweed, weasel hemp nettle, pale persicaria, willow leaf thorn knotweed, Amaranthus retroflexus, dayflower, elscholtiza, penny cress, vetch, Descurainia sophia and little japanese bearbind.
Clodinafop-propargyl belongs to neophyl pyrazolines weed killer herbicide, and the mechanism of action is acetyl-CoA carboxylase (ACC) inhibitor.Cause fatty acid biosynthesis block, make cell division stop cell membrane destructurized containing fat, cause weeds dead; Have Uptake and translocation, be mainly used in barley field and prevent and kill off annual gramineous weed, through toxicity test and field control effectiveness test, result shows barley field annual gramineous weed as wild oat, green foxtail, barnyard grass etc. have good preventive effect.
When diflufenican and the single use of clodinafop-propargyl, all there are certain defect and limitation.
The mixture of the present inventor to diflufenican and clodinafop-propargyl conducts in-depth research, on the basis of a large amount of formula indoor screening tests and field medicine effect test, find that diflufenican and clodinafop-propargyl carry out mixture, within the scope of certain mixed ratio, obvious synergistic effect is shown to weeds of wheat, after further study, the present invention is completed.
Mixture and the application of diflufenican and clodinafop-propargyl there is no report at present.
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 are good and the lasting period is long, are conducive to the Herbicidal combinations of the farmland weed comprehensive regulation.
Another object of the present invention is to provide and is used for preventing and kill off farmland weed by this Herbicidal combinations, is particularly useful for preventing and kill off wheat paddock annual weed etc.
Technical solution of the present invention: a kind of Herbicidal combinations containing diflufenican and clodinafop-propargyl, active ingredient is diflufenican and clodinafop-propargyl, the ratio of weight and number of diflufenican and clodinafop-propargyl is 10:1 ~ 1:10, diflufenican and the percentage by weight of clodinafop-propargyl weight summation in Herbicidal combinations are 1%-80%, and all the other are agriculturally allow to use and acceptable insecticides adjuvant.
Described Herbicidal combinations according to well known to a person skilled in the art method, can be mixed with the application forms of the applicable agricultural use such as aqua, suspending agent.
Herbicidal combinations of the present invention is also containing the auxiliary agent of preparation needed for pesticidal preparations, auxiliary agent is the mixing of one or more in solvent, emulsifier, wetting agent, stabilizing agent, dispersant, thickener, pH adjusting agent, defoamer, antifreezing agent, packing agent etc., be known substance, various auxiliary agents conventional in pesticidal preparations, can change to some extent according to different situations, be not particularly limited.
Product described in the invention can the form of finished product preparation provide, and namely in composition, each material mixes, and the composition of composition also can the form of single dose provide, and directly mixes in tank or bucket, be then diluted to required concentration before using.
The frequency of administration of Herbicidal combinations of the present invention and amount of application change with weather condition and crop condition change, can by the object using suitable formulation to reach control.
Herbicidal combinations of the present invention is applicable to prevent and treat annual weed, especially wheat paddock annual weed.
Compared with prior art, beneficial effect of the present invention is, composite have obvious synergistic effect, improves control efficiency; Expand control spectrum; Two kinds of active ingredients are composite, reduce Pesticide use amount, thus reduce cost and decrease the pollution to environment.
Embodiment
In order to make object of the present invention, technical scheme and advantage more short and sweet, the following specific embodiment of the present invention is described, but the present invention is only limitted 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 the restriction to scope of the present invention.It should be pointed out that all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Assays Example one: synergy determination experiment.
Test material:
Annual bluegrass, Descurainia sophia (field collection Seed storage).
Test apparatus:
Controlled illumination box; The accurate laboratory spray tower of POTTER; Electronic balance (sensibility reciprocal 0.1mg); Micropipette rifle etc.
Test method:
First take the former medicine of 96% diflufenican of certain mass, the former medicine of 95% clodinafop-propargyl, adds the Tween 80 aqueous solution dilution that acetone fully dissolves rear use 0.1%, is mixed with single dose mother liquor respectively, arrange serial proportioning according to mixture object, each proportioning arranges 5 ~ 7 concentration gradients.Select representative susceptible weeds seed for subsequent use according to single dose herbicide spectrum.After carrying out soil treatment by selecting the process of numbering, to be placed in illumination box incubated at room temperature 10 days, to calculate control efficiency (fresh weight), 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 agent EC
50/ reagent agent EC
50) × 100.
Theoretical toxicity index (the TTI)=percentage composition of A (in the toxicity index × mixture of the A)+percentage composition of B (in the toxicity index × mixture of B).
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] × 100.
Measurement result shows, diflufenican and clodinafop-propargyl are between proportioning 10:1 ~ 1:10, and have obvious synergistic effect, co-toxicity coefficient is more than 120.
Table 1, different ratio diflufenican and clodinafop-propargyl are to the synergy measurement result of Descurainia sophia
| Process | EC 50(μg/ml) | ATI | TTI | Co-toxicity coefficient (CTC) |
| Diflufenican | 0.40 | 100 | - | - |
| Clodinafop-propargyl | 16.58 | 2.41 | - | - |
| Diflufenican: clodinafop-propargyl (10:1) | 0.36 | 111.11 | 91.13 | 121.93 |
| Diflufenican: clodinafop-propargyl (5:1) | 0.38 | 105.26 | 83.74 | 125.71 |
| Diflufenican: clodinafop-propargyl (3:1) | 0.43 | 93.02 | 75.60 | 123.04 |
| Diflufenican: clodinafop-propargyl (1:1) | 0.63 | 63.49 | 51.21 | 123.99 |
| Diflufenican: clodinafop-propargyl (1:3) | 1.18 | 33.90 | 26.81 | 126.44 |
| Diflufenican: clodinafop-propargyl (1:5) | 1.67 | 23.95 | 18.68 | 128.24 |
| Diflufenican: clodinafop-propargyl (1:10) | 2.79 | 14.34 | 11.28 | 127.05 |
Table 2, different ratio diflufenican and clodinafop-propargyl are to the synergy measurement result of annual bluegrass
| Process | EC 50(μg/ml) | ATI | TTI | Co-toxicity coefficient (CTC) |
| Diflufenican | 0.69 | 100 | - | - |
| Clodinafop-propargyl | 0.38 | 181.58 | - | - |
| Diflufenican: clodinafop-propargyl (10:1) | 0.49 | 140.82 | 107.42 | 131.09 |
| Diflufenican: clodinafop-propargyl (5:1) | 0.51 | 135.29 | 113.60 | 119.10 |
| Diflufenican: clodinafop-propargyl (3:1) | 0.43 | 160.47 | 120.39 | 133.28 |
| Diflufenican: clodinafop-propargyl (1:1) | 0.38 | 181.58 | 140.79 | 128.97 |
| Diflufenican: clodinafop-propargyl (1:3) | 0.28 | 246.43 | 161.18 | 152.89 |
| Diflufenican: clodinafop-propargyl (1:5) | 0.3 | 230.00 | 167.98 | 136.92 |
| Diflufenican: clodinafop-propargyl (1:10) | 0.33 | 209.09 | 174.16 | 120.05 |
Example of formulations one: 24% diflufenican clodinafop-propargyl suspending agent.
Above-mentioned formula is pulverized in proportion in advance, then adds in sand mill and grind, the obtained 24% diflufenican clodinafop-propargyl suspending agent of allotment after high shear mixing.
This embodiment is used for preventing and kill off wheat paddock annual weed, 24% diflufenican clodinafop-propargyl suspending agent consumption 120ga.i./ha Seal treatment, and after medicine, 10 days preventive effects are 97.9%; 18% diflufenican suspending agent consumption 60ga.i./ha soil treatment, after medicine, 10 days preventive effects are 78.5%; 15% Clodinafop-propargyl microemulsion consumption 75ga.i./ha soil treatment, after medicine 10 days 66.1%.Obviously, 24% diflufenican clodinafop-propargyl suspending agent is prevented and kill off wheat paddock annual weed drug effect and is obviously better than 18% diflufenican suspending agent and 15% Clodinafop-propargyl microemulsion for diflufenican and the composite rear synergy of clodinafop-propargyl acid.Because pharmacy control efficacy improves, compound drug effective ingredient consumption reduces, and expands herbicide spectrum, reduces drug cost, delay the generation of disease drug resistance, decrease environmental pollution.
Example of formulations two: 20% diflufenican clodinafop-propargylemulsion emulsion in water.
Above-mentioned formula is mixed in proportion, shears obtained 20% diflufenican clodinafop-propargylemulsion emulsion in water.
This embodiment is used for preventing and kill off wheat paddock annual weed, 20% diflufenican clodinafop-propargylemulsion emulsion in water consumption 120ga.i./ha cauline leaf process, and after medicine, 10 days preventive effects are 96.8%; 18% diflufenican suspending agent consumption 60ga.i./ha soil treatment, after medicine, 10 days preventive effects are 76.9%; 15% Clodinafop-propargyl microemulsion consumption 75ga.i./ha cauline leaf process, after medicine 10 days 67.6%.Obviously, 20% diflufenican clodinafop-propargylemulsion emulsion in water is prevented and kill off wheat paddock annual weed drug effect and is obviously better than 18% diflufenican suspending agent and 15% Clodinafop-propargyl microemulsion for diflufenican and the composite rear synergy of clodinafop-propargyl.Because pharmacy control efficacy improves, compound drug effective ingredient consumption reduces, and expands herbicide spectrum, reduces drug cost, delay the generation of herbicide resistance, decrease environmental pollution.
Claims (4)
1. one kind contains the Herbicidal combinations of diflufenican and clodinafop-propargyl, it is characterized in that: active ingredient is diflufenican and clodinafop-propargyl, the ratio of weight and number of diflufenican and clodinafop-propargyl is 10:1 ~ 1:10, and diflufenican and the percentage by weight of clodinafop-propargyl weight summation in Herbicidal combinations are 1%-80%.
2. a kind of Herbicidal combinations containing diflufenican and clodinafop-propargyl according to claim 1, is characterized in that: also containing pesticidal preparations auxiliary element in described Herbicidal combinations, so that herbicidal composition makes the formulation being applicable to agriculturally using.
3. a kind of Herbicidal combinations containing diflufenican and clodinafop-propargyl according to claim 1, is characterized in that: the formulation of described Herbicidal combinations is the one in suspending agent, aqueous emulsion.
4. a kind of Herbicidal combinations containing diflufenican and clodinafop-propargyl according to claim 1 is in the application of preventing and kill off wheat paddock annual weed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510999133.9A CN105409960A (en) | 2015-12-23 | 2015-12-23 | Weeding composition containing diflufenican and chodinafop-propargyl |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510999133.9A CN105409960A (en) | 2015-12-23 | 2015-12-23 | Weeding composition containing diflufenican and chodinafop-propargyl |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106962360A (en) * | 2017-05-09 | 2017-07-21 | 江苏辉丰农化股份有限公司 | Herbicidal combinations with synergistic effect |
| WO2017206825A1 (en) * | 2016-05-30 | 2017-12-07 | 江苏辉丰农化股份有限公司 | Weeding composition having synergistic effects |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102027909A (en) * | 2009-09-28 | 2011-04-27 | 南京华洲药业有限公司 | Herbicidal composition containing diflufenican and clodinafop-propargyl and application thereof |
-
2015
- 2015-12-23 CN CN201510999133.9A patent/CN105409960A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102027909A (en) * | 2009-09-28 | 2011-04-27 | 南京华洲药业有限公司 | Herbicidal composition containing diflufenican and clodinafop-propargyl and application thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017206825A1 (en) * | 2016-05-30 | 2017-12-07 | 江苏辉丰农化股份有限公司 | Weeding composition having synergistic effects |
| CN106962360A (en) * | 2017-05-09 | 2017-07-21 | 江苏辉丰农化股份有限公司 | Herbicidal combinations with synergistic effect |
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Application publication date: 20160323 |