CN104621145A - Weedicide composition containing flumioxazin, clopyralid and clethodim - Google Patents
Weedicide composition containing flumioxazin, clopyralid and clethodim Download PDFInfo
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- CN104621145A CN104621145A CN201410817257.6A CN201410817257A CN104621145A CN 104621145 A CN104621145 A CN 104621145A CN 201410817257 A CN201410817257 A CN 201410817257A CN 104621145 A CN104621145 A CN 104621145A
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- clopyralid
- clethodim
- flumioxazin
- weeds
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Abstract
The invention relates to a weedicide composition containing flumioxazin, clopyralid and clethodim. The weedicide composition comprises the following active ingredients in percentage by weight: 2%-40% of flumioxazin, 1%-40% of clopyralid and 2%-20% of clethodim. The weedicide composition comprises the synergetic effect, is obviously superior to the alone use of all single agents when applied to prevention and removal of annual weeds in soybean fields, the weeding spectrum can be extended, the usage amount of the weedicide can be reduced, the resistance risk of weeds can be reduced, the environment pollution can be lightened, and the occurrence of weed resistance can be prolonged.
Description
Technical field
The present invention relates to agricultural chemicals Herbicidal combinations and application thereof, specifically a kind of soybean field weeding composition that is active ingredient with flumioxazin, clopyralid and clethodim.
Background technology
Chemical weed control method is agriculturally one of Main Means controlling weeds.Grass when weeds occur is mutually complicated, and multiple weeds are mixed raw, and single variety weed killer herbicide uses can not solve farmland weed, all can show defect in a certain respect and limitation.Variety classes compound mixture, has and improves actual effect, expansion herbicidal spectrum, time and labour saving advantage.
The enzyme of flumioxazin for suppressing proporphyrinogen oxidase (PPO) very important in plant chlorophyll synthesis, after process, protoporphyrin is built up in the body of sensitive plant, cause the peroxidating of photosensitization and Cell membrane lipids, cause cell membrane function and the irreversible destruction of structure, after cauline leaf process, susceptible weeds cauline leaf is downright bad, dead after solar radiation; After soil treatment, the bud of susceptible weeds is downright bad, dead after of short duration solar radiation.
Clopyralid is to after weeds dispenser, by blade or root absorption, divide a word with a hyphen at the end of a line up and down in plant corpus, pass to rapidly whole plant, the mechanism of action of its herbicide is the formation promoting plant nucleic acid, produce excessive ribonucleic, cause root growth excessive, stem and leaf growth deformity, nutrient consumption, vascular bundle transporting function is obstructed, and causes weeds dead.
Clethodim is inner sucting conduction type cauline leaf inorganic agent, there is excellent selectivity, very strong lethal effect is had to grassy weed, to dicotyledonous crops safety, absorb rapidly through leaf after cauline leaf process, be transmitted to meristematic tissue, in sensitive plant, suppress the biosynthesis of branched chain fatty acid and flavonoids and work, its cell division is destroyed, suppresses the merismatic activity of plant, plant strain growth is delayed, after dispenser, in 1-3 week, plant moves back green necrosis, burn with posterior lobe withered and dead, to most of annual, perennial grassy weed is effective.
By the screening of different pesticide species compounded formula, filter out rational formula, effectively can improve the actual control efficiency to disease pest and weed, expanding prevention is composed, reduce dosage, reduce costs, alleviate the pollution to environment, delaying the drug-fast generation of disease pest and weed, is the important means of the agriculturally disease pest and weed comprehensive regulation.
The present inventor combinationally uses flumioxazin, clopyralid and clethodim and conducts in-depth research, a large amount of formula indoors screening and field medicine effect test basis on, find that flumioxazin, clopyralid and clethodim are combined in certain proportion and obvious Synergistic or summation action are shown to weeds, after further study, the present invention is completed.
Not yet find the relevant report of flumioxazin, clopyralid and clethodim combination for the control of Soybean Field annual weed at present.
Summary of the invention
The object of the present invention is to provide a kind of Herbicidal combinations that there is synergistic function, expand the paddy field that herbicide is composed, use cost is low, control efficiency is good.
The technical scheme realizing the object of the invention is: a kind of Herbicidal combinations, active ingredient is flumioxazin and clopyralid and clethodim, flumioxazin percentage by weight is in the composition 2% ~ 40%, clopyralid percentage by weight is in the composition 1% ~ 40%, clethodim percentage by weight is in the composition 2% ~ 20%, and all the other are agriculturally acceptable pesticidal preparations auxiliary element.
Described Herbicidal combinations according to well known to a person skilled in the art method, can select suitable pesticidal preparations auxiliary element, can be processed into the application forms that the applicable agricultural production such as water dispersible granules, wetting powder uses.
The auxiliary element that the present invention uses comprises wetting agent, stabilizing agent, dispersant, disintegrant, thickener, pH adjusting agent, defoamer, antifreezing agent, filler etc., be all auxiliary agent conventional in Pesticide formulation, concrete composition and consumption are determined by test according to recipe requirements.
Herbicidal combinations provided by the invention, is applicable to prevent and kill off Soybean Field annual weed.
The frequency of administration of Herbicidal combinations provided by the invention and amount of application change with crops, weeds, weather condition and have small variations, can by the object using suitable dosage reach effectively control.
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.
Compared with prior art, the invention has the advantages that:
1, flumioxazin, clopyralid and clethodim combination, has obvious Synergistic or summation action, uses the control efficiency significantly improved weeds than single dose, expands herbicide spectrum.
2, flumioxazin, clopyralid and clethodim combination, different to the weeds mechanism of action, the generation of herbicide resistance can be delayed.
3, flumioxazin, clopyralid and clethodim combination, decreases usage amount, reduces use cost, alleviate the pollution to environment.
Embodiment
In order to understand essence of the present invention better; below in conjunction with embodiment, content of the present invention is described further; but can not limitation of the present invention be considered as; the following stated is only for explaining the present invention; for not departing from amendment that the present invention's spirit and principle make, replacement or improvement, all belong to the scope of protection of present invention.
In following each embodiment, active ingredient adopts the former medicine of 96% flumioxazin, the former medicine of 95% clopyralid and 95% clethodim technical pesticide, and each component percentages is weight percentage.
Example of formulations 1:70% flumioxazin clopyralid clethodim water dispersible granules.
Flumioxazin 5%, clopyralid 40%, clethodim 25%, lauryl sodium sulfate 2%, sodium lignin sulfonate 3%, ammonium sulfate 2%, urea 3%, sodium bicarbonate 3%, polyethylene glycol 2%, kaolin supplies 100%.Above-mentioned active ingredient, auxiliary agent and carrier are mixed, pulverize with micro jet, through mediating, then adding in fluidized-bed granulation dryer and carrying out granulation, drying, screening, 70% flumioxazin clopyralid clethodim water dispersible granules can be obtained.
Example of formulations 2:45% flumioxazin clopyralid clethodim wetting powder.
Flumioxazin 2%, clopyralid 27%, clethodim 16%, tributyl phosphate 4%, to methoxyl group fatty acyl anilinesulfonic acid 5%, NNO7%, wooden calcium 4%, diatomite supplies 100%.Above-mentioned active ingredient, auxiliary agent and carrier are mixed, again through air-flow crushing after mechanical crushing, mixes, 65% flumioxazin clopyralid clethodim wetting powder can be obtained.
Assays Example 1: indoor biological determination of activity embodiment.
Reagent agent: the former medicine of 96% flumioxazin, the former medicine of 95% clopyralid and 95% clethodim technical pesticide.
For examination target: grayish green multitude (Chenopodium glaucum), lady's-grass (Digitaria sanguinalis).
Medicament configuration design: flumioxazin single dose is configured to 3,6,12g.a.i./ha solution for standby, clopyralid single dose is configured to 30,60,120g.a.i./ha solution for standby, clethodim single dose is configured to 15,30,60g.a.i./ha solution for standby, flumioxazin, clopyralid and clethodim mixture are configured to 3+30+15, 3+30+30, 3+30+60, 6+30+15, 6+30+30, 6+30+60, 12+30+15, 12+30+30, 12+30+60, 3+60+15, 3+60+30, 3+60+60, 6+60+15, 6+60+30, 6+60+60, 12+60+15, 12+60+30, 12+60+60, 3+120+15, 3+120+30, 3+120+60, 6+120+15, 6+120+30, 6+120+60, 12+120+15, 12+120+30, 12+120+60g.a.i./ha solution for standby.
Test method: at the in-built quantitative soil of the polypots of high 6cm, diameter 9cm, will for 15 ~ 20 sowings of examination target weed seed in polypots, be placed in greenhouse after the fine earth that lid 0.5 ~ 1cm is thick and cultivate, treat that weeds grow to the 3-4 leaf phase and carry out spraying process, every alms bowl spraying liquid 1mL, often process repetition 4 times, and set the process not containing medicament as contrasting.After process, examination material is placed in greenhouse and cultivates, and the growing state of routine observation target weeds, estimates target damage symptoms and growth inhibition situation, and claim acrial part fresh weight after 20d, evaluates medicament to the toxicity action of target weeds with target fresh weight inhibition.
Investigation method: estimate target damage symptoms and growth inhibition situation after test process 20d, and claim acrial part fresh weight, calculate fresh weight inhibition (%).
Synergy evaluation method: evaluate weed killer herbicide mode of application (NY/T1155.7-2006) according to Colby method, its formula is: E
0=X × Y × Z/100
2, in formula, X be flumioxazin alone with certain dosage time be the percentage of contrast to the fresh weight inhibition of target weeds; Y be clopyralid alone with certain dosage time be the percentage of contrast to the fresh weight inhibition of target weeds; Z be clethodim alone with certain dosage time be the percentage of contrast to the fresh weight inhibition of target weeds; E
0for during flumioxazin, clopyralid and clethodim three kinds of pharmacy mix to target weeds fresh weight inhibition being the theoretical value of the percentage contrasted; Be the measured value of the percentage of contrast to target weeds fresh weight inhibition when E is flumioxazin, clopyralid and clethodim three kinds of pharmacy mix.
Evaluation criterion: work as E
0synergistic effect is expressed as, as-10%≤E during-E>10%
0be expressed as summation action during-E≤10%, work as E
0antagonism is expressed as during-E<-10%.
As can be seen from the Toxicity Determination result of table 1, table 2, flumioxazin and clopyralid mixture respectively process the E to grayish green multitude, barnyard grass and nutgrass flatsedge
0-E (%) value is all greater than 10%, illustrates that three is composite and all has Synergistic or summation action to grayish green multitude and lady's-grass.As can be seen here, flumioxazin, clopyralid and clethodim Ternary have reasonability and feasibility.
Table 1, each chemicals treatment are to the Toxicity Determination result of grayish green multitude
Table 2, each chemicals treatment are to lady's-grass Toxicity Determination result
Assays Example 2: field control effectiveness test.
Test is carried out in An Hu village, Ren Shan town, Huidong County of Guangdong Province, after soybean planting 23 days.8 process are established in test altogether, often 3 repetitions are established in process, process 1 is 70% flumioxazin clopyralid clethodim water dispersible granules (example of formulations 1), process 2 is 50% flumioxazin wetting powder, process 3 is the solvable pulvis of 75% clopyralid, process 4 is 24% clethodim EC, process 5 is contrast (artificial weeding), within after medicine 20 days, adds up each process number of weeds amount and calculates preventive effect.
Table 3, each chemicals treatment prevent and kill off the field control effectiveness test result of soybean weeds
As can be seen from the field test results of table 3, to soybean weeds preventive effect more than 93.60% when within after medicine 30 days, 70% flumioxazin clopyralid clethodim water dispersible granules (example of formulations 1) usage amount is 210-315g.a.i./ha, herbicidal effect is obviously higher than 50% flumioxazin wetting powder, the solvable pulvis of 75% clopyralid and 24% clethodim EC, three single doses, and in pilot survey process, do not send out it produces poisoning to soybean simultaneously.As can be seen here, said composition is worth applying in agricultural production.
Claims (4)
1. one kind contains the Herbicidal combinations of flumioxazin and clopyralid and clethodim, it is characterized in that: active ingredient is flumioxazin and clopyralid and clethodim, flumioxazin percentage by weight is in the composition 2% ~ 40%, clopyralid percentage by weight is in the composition 1% ~ 40%, and clethodim percentage by weight is in the composition 2% ~ 20%.
2. a kind of Herbicidal combinations containing flumioxazin and clopyralid and clethodim according to claim 1, is characterized in that: described Herbicidal combinations also contains pesticidal preparations auxiliary element, to make the application forms of applicable agricultural use.
3. a kind of Herbicidal combinations containing flumioxazin and clopyralid and clethodim according to claim 2, is characterized in that: its formulation is water dispersible granules or wetting powder.
4. a kind of Herbicidal combinations containing flumioxazin and clopyralid and clethodim according to claim 1 is to prevent and kill off the application in Soybean Field annual weed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410817257.6A CN104621145A (en) | 2014-12-23 | 2014-12-23 | Weedicide composition containing flumioxazin, clopyralid and clethodim |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410817257.6A CN104621145A (en) | 2014-12-23 | 2014-12-23 | Weedicide composition containing flumioxazin, clopyralid and clethodim |
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| CN201410817257.6A Pending CN104621145A (en) | 2014-12-23 | 2014-12-23 | Weedicide composition containing flumioxazin, clopyralid and clethodim |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4906289A (en) * | 1988-06-27 | 1990-03-06 | Sumitomo Chemical Co., Ltd | Herbicidal composition |
| CN1332608A (en) * | 1998-11-10 | 2002-01-23 | 辛根塔参与股份公司 | Herbicidal composition |
| CN102487949A (en) * | 2011-11-18 | 2012-06-13 | 陕西美邦农药有限公司 | Weeding composition containing flumioxazin and cyclohexenone compound |
| US20120238451A1 (en) * | 2011-03-17 | 2012-09-20 | Monsanto Technology Llc | Herbicide and adjuvant compositions and method of use thereof |
-
2014
- 2014-12-23 CN CN201410817257.6A patent/CN104621145A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4906289A (en) * | 1988-06-27 | 1990-03-06 | Sumitomo Chemical Co., Ltd | Herbicidal composition |
| CN1332608A (en) * | 1998-11-10 | 2002-01-23 | 辛根塔参与股份公司 | Herbicidal composition |
| US20120238451A1 (en) * | 2011-03-17 | 2012-09-20 | Monsanto Technology Llc | Herbicide and adjuvant compositions and method of use thereof |
| CN102487949A (en) * | 2011-11-18 | 2012-06-13 | 陕西美邦农药有限公司 | Weeding composition containing flumioxazin and cyclohexenone compound |
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Application publication date: 20150520 |