CN103155922B - Senecio prevention and control combination and preparation as well as application thereof - Google Patents
Senecio prevention and control combination and preparation as well as application thereof Download PDFInfo
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- CN103155922B CN103155922B CN201310115991.3A CN201310115991A CN103155922B CN 103155922 B CN103155922 B CN 103155922B CN 201310115991 A CN201310115991 A CN 201310115991A CN 103155922 B CN103155922 B CN 103155922B
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Abstract
The invention discloses a weed prevention and control combination and preparation as well as application thereof, and particularly relates to a senecio prevention and control combination and preparation as well as application thereof. The senecio prevention and control combination contains fomesafen and clopyralid in mass ratio of 1: (0.15-10). The combination has an effective prevention and control effect on senecio, thus stopping the growth of the senecio or killing the senecio so as to prevent the senecio from destroying the ecological environments and sustainable development of pastures or forest farms.
Description
Technical field
The present invention relates to composition, preparation and the application thereof of a kind of prevention and control weeds, be specifically related to a kind of composition, preparation and application thereof of prevention and control climbing groundsel.
Background technology
It is mainly to divide from six classes of doors, classes, orders, families, genera and species that the kind of plant group is divided, and all kinds of grades, from door, reduce gradually, until plant.Planting (Species) is the base unit of plant classification, its refer to there is certain natural distribution and certain physiology, the plant group of morphological feature, the Different Individual of same has identical genetic character, hybridization can produce and can educate offspring each other, individuality hybridization between not of the same race, conventionally can not produce offspring or produce sterile offspring.The base unit of plant classification is to plant, according to affiliation, concomitant some many kinds are generalized into genus (Genus), again some more common point genus are generalized into section (Familia), so analogize and form order (Order), guiding principle (C1assis) and door (Divisio).
Senecio plant is the plant group of Angiospermae Dicotyledoneae chrysanthemum order composite family, wherein literature climbing groundsel by name, and latin name is Herba Senecionis Scandentis.Climbing groundsel is planted regional difference according to place, the climbing groundsel of each kind also has certain difference, includes the different kinds of multiclass such as Senecio faberii Hemsl, Liangshan Mountain climbing groundsel, different plumage climbing groundsel, fine flower climbing groundsel (Mount Emei), Herba Senecionis asperifolii and volume river climbing groundsel.Existing most research shows, itself has toxicity climbing groundsel, especially flower and complete stool part; There are some researches show, climbing groundsel generally contains unsaturated pyroles alkaloid, and this kind of chemical composition is except having for animal and human obvious hepatotoxicity, and it can also be for the preparation of the medicine of sterilization; Therefore the existing research to climbing groundsel is mostly the research to its chemical composition, medical value and bio-toxicity aspect.
Although climbing groundsel has higher medical value, but now there is the trend of rapid spread after the transplanted or field planting of climbing groundsel, thereby have a strong impact on ecotope and the sustainable development in pasture or forest farm, caused pasture and forest farm to accelerate the trend of degenerating and having burst to spread.In this case, need to and carry out using climbing groundsel as weeds effective prevention and control.
Existing mode of carrying out prevention and control using climbing groundsel as weeds is mainly the mode that adopts medicament prevention and control, but still can not play good effect for prevention and control climbing groundsel in existing medicament.
In addition, Senecio faberii Hemsl is the herbaceos perennial of a kind of composite family (Compositae) Senecio (Senecio), and its Latin formal name used at school is Senecio faberii Hemsl, and Chang Zuowei medicinal plant is cultivated and utilized.Senecio faberii Hemsl is now mainly distributed in the areas such as Guangxi, Sichuan, Guizhou, Yunnan.This Plants of Senecio faberii Hemsl is successfully grown in Baoxing Area, Ya'an, Sichuan at present surely, but owing to not taking any biological prevention and control measure in its process of surely growing, thereby cause it to build ecosystem scenic area rapid spread in Shenmu County, and have a strong impact on the ecotope at scenic spot, it also invades local pasture simultaneously, cause local pasture to accelerate to degenerate, the balanced growth of heavy damage local environment, and have fulminant spreading trend.
Summary of the invention
In view of this, the invention provides a kind of composition of prevention and control climbing groundsel, said composition can play effective prevention and control effect to climbing groundsel, thereby suppresses its growth or it is killed, and avoids it to destroy ecotope and the sustainable development in pasture or forest farm.
For solving above technical problem, technical scheme of the present invention is the composition that adopts a kind of prevention and control climbing groundsel, and described composition contains fomesafen and clopyralid, and the mass ratio of described fomesafen and clopyralid is 1:0.15-10.
Preferably, the mass ratio of described fomesafen and clopyralid is 1:4-8.
Preferably, the mass ratio of described fomesafen and clopyralid is 1:4.
Being described in detail as follows of technical solution of the present invention:
The technical solution used in the present invention is a kind of composition of prevention and control climbing groundsel, and described composition contains fomesafen and clopyralid, and the mass ratio of described fomesafen and clopyralid is 1:0.15-10.The present invention mainly adopts such scheme with the composition of clopyralid mixing gained, climbing groundsel to be played to prevention and control effect by fomesafen.
Fomesafen of the present invention, its chemical name is 5-(α-tri-are fluoro-to toloxyl for the chloro-α of 2-, α)-N-mesyl-2-nitrobenzamide, its chemical structural formula is as follows:
Clopyralid of the present invention, its chemical name is 3,6-dichloropyridine-2-carboxylic acid, its chemical structural formula is as follows:
Fomesafen is a kind of soybean, Peanut Fields herbicide after seedling with high selectivity, can effectively prevent and kill off soybean, Peanut Fields broad leaved weed and the rhizome of nutgrass flatsedge, and grassy weed is also had to certain preventive effect; It can be absorbed by weeds root, leaf, makes its rapid withered and yellow death; The shortcoming of fomesafen is that its residence time in soil is longer, and a large amount of uses can cause persticide residue more.
Clopyralid is a kind of interior conductive hormone herbicide of inhaling, after weeds dispenser, by blade or root absorption, in plant corpus, divide a word with a hyphen at the end of a line up and down, conduct to rapidly whole plant, the mechanism of action of its herbicide is the formation that promotes plant nucleic acid, produce excessive ribonucleic acid, cause root growth excessive, stem and leaf growth deformity, thus nutrient consumption causes plant death.
The inventor finds through research fully, existing conventional weed killer herbicide is combined to the composite composition that makes, existing conventional weed killer herbicide and fomesafen of the present invention or clopyralid are combined to the composite composition that makes simultaneously, aforementioned several composition is compared with composition of the present invention, it is obviously lower to the virulence of climbing groundsel, even occurs that two kinds of composite rear virulence to climbing groundsel of former medicine have obvious antagonism.
In composition of the present invention, fomesafen has different effects from the mass ratio of clopyralid equally to the virulence of climbing groundsel; And mass ratio between the two of the present invention is 1:0.15-10, under this mass ratio, resulting composition for the virulence of climbing groundsel for being added or synergy (referring to embodiment 1).
In addition, in the composition adopting due to the present invention, the mass ratio of fomesafen and clopyralid is 1:0.15-10, the usage amount of fomesafen in greatly reducing, the identical or addition of its former medicine to the virulence result of climbing groundsel and folk prescription reaching; Therefore, the medicament residual quantity after composition of the present invention uses is lower, safety and environmental protection more.
Further, preferably to adopt the mass ratio of fomesafen and clopyralid in the composition of described prevention and control climbing groundsel be 1:4-8 in the present invention.Through the inventor's experiment confirmation, in the time that the mass ratio of fomesafen in the present composition and clopyralid is 1:4-8, its composition obtaining is synergistic effect for the toxicity test result of climbing groundsel plant; Therefore, the present invention preferably adopts above-mentioned embodiment.
Further, preferably to adopt the mass ratio of fomesafen and clopyralid in the composition of described prevention and control climbing groundsel be 1:4 in the present invention.In the inventor's experimental study, show, in the time that the mass ratio of fomesafen and clopyralid is 1:4, its composition obtaining is the most obvious to the toxicity test result synergistic effect of climbing groundsel, and its measured co-toxicity coefficient is relatively high.
Second object of the present invention is to provide a kind of application for prevention and control climbing groundsel by foregoing, described being applied as comprises climbing groundsel as weeds and with described composition, climbing groundsel killed or suppressed, or described composition being prepared into the weed killer herbicide of prevention and control climbing groundsel.
Preferably, described climbing groundsel is Senecio faberii Hemsl.
The prevention and control that the composition of the aforementioned prevention and control climbing groundsel of the present invention is applied to various weeds on, effect is exactly the most significantly climbing groundsel, includes multiple kinds such as Senecio faberii Hemsl, Liangshan Mountain climbing groundsel, different plumage climbing groundsel, fine flower climbing groundsel, Herba Senecionis asperifolii and volume river climbing groundsel.
The Liangshan Mountain of the present invention climbing groundsel, Latin formal name used at school is Senecio liangshanensis C.Jeffrey et Y.L.Chen, originate from Southwest Sichuan portion (Daling Shan Mountain, Leibo), Yunnan (sea), be born in alpine meadow and sylvan life, 2600-3400 meters of height above sea level.
Different plumage climbing groundsel of the present invention, Latin formal name used at school is Senecio diversipinnus Ling, originates in Qinghai (Xining, large logical, cajaput), Gansu (Lian Tang, draw not stupefied, the Taohe River), is born in out spacious careless slope and rock hillside, height above sea level 1900-3500 rice.
Fine flower climbing groundsel of the present invention, Latin formal name used at school is Senecio graciliflorus DC, originate from Tibet (Yadong), Sichuan (Mount Emei), Yunnan (Dali, Lijing, Zhong Dian, Yongning, Dulong river, Wei Xi etc.), Guizhou, be born in and in Cao Po, border, woods, open spacious place or small stream limit, 2000-4100 meters of height above sea level.
Herba Senecionis asperifolii of the present invention, Latin formal name used at school is Senecio asperiflius Franch.Ex DC, originate from Sichuan (Yuanbaoshan Power Station), Guizhou (yellow fascine dam, Xingyi), Yunnan (Kunming, white salt well, Songming, Mengzi, Dali), be born in arid grassland and rock hillside, 690-2450 meters of height above sea level.
In specific embodiment part below, in embodiment 1 and embodiment 2, resulting composition of the present invention or preparation all have no effect in the regional herbage of same growth or other weeds for same climbing groundsel, include Asiatic plantain, Bermuda grass, hispid arthraxon etc.; Therefore, the composition of prevention and control climbing groundsel of the present invention is in application process, and its target effect to climbing groundsel is comparatively obvious; Therefore, second object of the present invention is to provide a kind of application for prevention and control climbing groundsel by the composition of aforementioned prevention and control climbing groundsel, described being applied as comprises climbing groundsel as weeds and with foregoing, it killed or suppress, or foregoing being prepared into the weed killer herbicide of prevention and control climbing groundsel.
Further, in second object of the present invention, in preferred described application, the climbing groundsel of prevention and control is Senecio faberii Hemsl.From below finding out embodiment 1, composition of the present invention wants high for the toxicity test result of Senecio faberii Hemsl compared with other kinds, and therefore, the present invention preferably adopts above-mentioned embodiment.
The 3rd object of the present invention is to provide a kind of weed killer herbicide of prevention and control climbing groundsel, and described weed killer herbicide includes the composition of aforesaid prevention and control climbing groundsel.In weed killer herbicide of the present invention, except containing aforesaid composition, it can also contain various existing herbicidal constituents, pharmaceutical adjunct etc.
Further, the present invention preferably adopts and in described weed killer herbicide, includes the composition that mass fraction is the described prevention and control climbing groundsel of 25%-40%.In concrete implementation section embodiment 2-field control effectiveness test below, in the preparation drug effect result of gained part composition, in the time that the mass fraction of composition is 25%-40% in preparation, the drug effect result that it obtains is compared good with all the other ratios.
Further, the present invention preferably adopts and in described weed killer herbicide, includes the composition that mass fraction is 40% described prevention and control climbing groundsel.Equally in embodiment 2 below in the preparation field efficacy result of gained, even dissimilar preparation, when described composition levels is 40%, the drug effect result that it obtains is all obviously better.
Further, preferably to adopt the formulation of described weed killer herbicide be wetting powder in the present invention.In embodiment 2 below, in the time that the formulation of preparation is wetting powder, the drug effect result of its preparation obtaining is obviously better.
Further, it is wetting powder that the present invention preferably adopts the formulation of described weed killer herbicide, the dispersant of the described composition of prevention and control climbing groundsel that described wetting powder contains 25%-40% and the wetting agent of 2-8%, 3-6%, in described composition, the mass ratio of fomesafen and clopyralid is 1:4-8.In embodiment 2 below when the selection of the factors such as the content of content, wetting agent and the dispersant of the formulation of preparation, composition all has impact for the direct drug effect result of gained; When the present invention preferably adopts the embodiment of weed killer herbicide of above-mentioned gained, the drug effect of its preparation obtaining is obviously better.
Further, preferably to adopt wetting agent in described weed killer herbicide be that lauryl sodium sulfate, described dispersant are dispersing agent MF in the present invention.
The 4th object of the present invention is to provide a kind of application for prevention and control climbing groundsel by aforementioned weed killer herbicide, described being applied as comprises climbing groundsel as weeds and with described weed killer herbicide, climbing groundsel killed or suppressed, or described weed killer herbicide is prepared into the complex function preparation that contains the effect of prevention and control climbing groundsel.In embodiment 2 below, illustrate weed killer herbicide of the present invention for the same growing environment of climbing groundsel in the plant such as herbage or weeds all without any impact, therefore, weed killer herbicide of the present invention is obvious to the target effect of climbing groundsel equally.
Further, in the application described in the 4th object of the present invention, preferably adopting climbing groundsel is Senecio faberii Hemsl.Below in embodiment 2, show that weed killer herbicide of the present invention is better than the climbing groundsel of all the other kinds for the prevention and control effect of Senecio faberii Hemsl.
Embodiment
In order to make those skilled in the art understand better technical scheme of the present invention, below in conjunction with specific embodiment, the present invention is described in further detail.
Prepare following reference examples according to the more existing mode of preparing composition, composition and content that each reference examples is contained are as follows:
Reference examples 1
2 first 4 chlorine sodium: the mass ratio of dicamba is 1:10, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 2
2 first 4 chlorine sodium: the mass ratio of dicamba is 1:8, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 3
2 first 4 chlorine sodium: the mass ratio of dicamba is 1:4, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 4
Trichloropyridine fluoroacetic acid: the mass ratio of dicamba is 1:6, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 5
Trichloropyridine fluoroacetic acid: the mass ratio of dicamba is 1:2, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 6
Trichloropyridine fluoroacetic acid: the mass ratio of fomesafen is 1:8, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 7
Trichloropyridine fluoroacetic acid: the mass ratio of fomesafen is 1:6, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 8
Trichloropyridine fluoroacetic acid: the mass ratio of fomesafen is 1:3, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 9
2 first 4 chlorine sodium: the mass ratio of clopyralid is 1:1, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 10
2 first 4 chlorine sodium: the mass ratio of clopyralid is 1:5, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 11
The former medicine of fomesafen
Reference examples 12
The former medicine of clopyralid
Reference examples 13
Fomesafen: the mass ratio of clopyralid is 1:15, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 14
Fomesafen: the mass ratio of clopyralid is 1:12, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 15
Fomesafen: the mass ratio of clopyralid is 1:10, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 16
Fomesafen: the mass ratio of clopyralid is 1:8, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 17
Fomesafen: the mass ratio of clopyralid is 1:6, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 18
Fomesafen: the mass ratio of clopyralid is 1:4, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 19
Fomesafen: the mass ratio of clopyralid is 1:2, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 20
Fomesafen: the mass ratio of clopyralid is 1:1, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 21
Fomesafen: the mass ratio of clopyralid is 2:1, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 22
Fomesafen: the mass ratio of clopyralid is 4:1, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 23
Fomesafen: the mass ratio of clopyralid is 6:1, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 24
Fomesafen: the mass ratio of clopyralid is 20:3, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
Reference examples 25
Fomesafen: the mass ratio of clopyralid is 8:1, the preparation method of said composition simply mixes two kinds of former medicines pulverize.
The raw material sources that use in above-mentioned reference examples are as follows:
The former medicine of fomesafen: purchased from Jiangsu lark Nong Hua Co., Ltd
The former medicine of clopyralid: purchased from Lier Chemical Co., Ltd
The former medicine of 2 first 4 chlorine sodium: purchased from Jiamusi, Heilongjiang Province pesticide chemical limited company
The former medicine of dicamba: purchased from Yangnong Chemical Co., Ltd., Jiangsu
The former medicine of trichloropyridine fluoroacetic acid: purchased from Lier Chemical Co., Ltd
The toxicity test experiment of embodiment 1-reference examples 1-25 to climbing groundsel
1) subjects: Senecio faberii Hemsl-A (gathering from Baoxing County, Ya'an, Sichuan Province), Liangshan Mountain climbing groundsel-B (gathering from autonomous prefecture of Liangshan of Sichuan Province Yi nationality, distributed over Yunnan, Sichuan and Guizhou Leibo County), different plumage climbing groundsel-C (gathering from Baoxing County, Ya'an, Sichuan Province), fine flower climbing groundsel-D (gathering from Mount Emei of Sichuan Province), Herba Senecionis asperifolii-E (gathering from autonomous prefecture of Liangshan of Sichuan Province Yi nationality, distributed over Yunnan, Sichuan and Guizhou Leibo County) and volume river climbing groundsel-F (gathering from Mount Emei of Sichuan Province) six climbing groundsel kinds altogether.
2) subjects collecting method: the herbage in gatherer process in same ecotope and other weeds (as Asiatic plantain, Bermuda grass, hispid arthraxon etc.) together gather, and together potted plant, the impact of simulated environment comprehensive assessment screening resulting composition on other weeds in ecotope, when climbing groundsel grows to when more vigorous as for examination target weeds.
3) test method: with reference to " pesticide bioassay test rule NY/T1155.4-2006 ", adopt pot-culture method.
4) data statistic analysis: adopt DPS6.55(Duncan) statistical software analyzes, and calculates strain, fresh weight inhibiting rate (%) according to test data, obtains virulence regression equation formula, correlation coefficient (r), IC
50and co-toxicity coefficient.
5) evaluation method: with reference to " pesticide bioassay test rule NY/T1155.4-2006 ", according to Sun & Johnson(1960) the synergistic effect of spending Y-factor method Y (CTC) together and evaluate pharmacy mix, be that CTC≤80 are antagonism, 80<CTC<120 is summation action, and CTC >=120 are synergistic effect.
6) the above-mentioned toxicity test that results and analysis: reference examples 1-25 does subjects A-F respectively the results detailed in Table one to table two.
The toxicity test result of table one-reference examples 1-25 to subjects A-C
The toxicity test result of table two-reference examples 1-25 to subjects D-F
In toxicity test result, in reference examples 1-12, be there is to certain impact in the herbage in same environment or other weeds part, if any the appearance of the phenomenons such as other weeds flavescence; And reference examples 13-25 is impact to the herbage in same environment or other weeds.
In above-mentioned reference examples, reference examples 1-5 is the composition of other several herbicides;
Reference examples 6-10 is the composition of fomesafen or clopyralid and other combinations of herbicides;
Reference examples 11-12 is fomesafen or clopyralid itself;
Reference examples 13-14,25 is for to have identical composition with the present composition, but the not identical composition of content;
Reference examples 15-24 is the embodiment of the composition of prevention and control climbing groundsel of the present invention;
Wherein, reference examples 16-18 is the embodiment of the composition of the further improved prevention and control climbing groundsel of the present invention.
From upper table one, table two, can find out, compared to listed medicament composition or former medicine reference examples, composition of the present invention obviously has better virulence effect; Above-mentioned listed reference examples is only part embodiment, and composition and the ratio of composition of the present invention draw in test of many times.
In addition, as can be seen from the above table, compared to other climbing groundsels, composition of the present invention has better virulence result for the Senecio faberii Hemsl plant in climbing groundsel.
Wherein, reference examples 16-18 gained toxicity test result is synergistic effect, and therefore, the present invention is preferably the composition of this scope ratio as further improved mode.
The composition of reference examples 15,16,18,24 is processed into respectively to the different preparation of content, and the preparation being processed into is as following table three:
Table three
In upper table, formulation i is that granular preparation, formulation ii are that pulvis, formulation iii are wetting powder; Dispersant MF is dispersing agent MF, and NNO is di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate.
The composition of embodiment 2-reference examples 15,16,18,24 is processed into the field control effectiveness test after preparation
The composition of aforementioned reference examples 15,16,18,24 is processed into preparation according to the content of table three respectively, and the each preparation of gained is respectively used to prevent and treat three kinds of kinds of aforementioned climbing groundsel, is respectively kind A, C, F; And establish clear water contrast.
Using method: the each preparation of gained is dissolved or dispersed in respectively and makes solution or suspension in clear water, gained solution or suspension are with 750kg(suspension or solution)/hectare even spraying is in each test block of average division, and the active ingredient usage amount of the medicament of spraying in each test block is 240 grams/ha.
In each test region, there are equally herbage and other weeds, comprise Asiatic plantain, Bermuda grass, hispid arthraxon etc.
Drug effect measuring and calculating mode: the remaining strain number of investigating the climbing groundsel in each test block for 15 days after medicine, within after medicine 30 days, investigate remaining strain number and the fresh weight of the climbing groundsel in each test block, investigate the impact of medicament on non-target weeds simultaneously, and calculate after medicine after the strain preventive effect of 15 days and medicine strain preventive effect and the fresh weight preventive effect of 30 days.
Drug effect computing formula:
In formula: the remaining number of weeds of PT-treatment region (or fresh weight); CK-blank district careless number alive (or fresh weight)
Interpretation of result: the interval distribution of drug effect result (%) numerical value is as follows:
65.01%-67.00%——a；67.01%-69.00%——b；69.01%-71.00%——c；
71.01%-73.00%——d；73.01%-75.00%——e；75.01%-77.00%——f；
77.01%-79.00%——g；79.01%-81.00%——h；81.01%-83.00%——i；
83.01%-85.00%——j；85.01%-87.00%——k；87.01%-89.00%——l；
89.01%-91.00%——m；91.01%-93.00%——n；93.01%-94.00%——o；
94.01%-95.00%——p；95.01%-96.00%——q；96.01%-97.00%——r；
97.01%-98.00%——s；98.01%-99.0%——t；99.01%-100.0%——u。
The result of calculating gained according to above-mentioned drug effect computing formula is compared according to interval distribution of above-mentioned numerical value, is then listed in the following table:
Table four
In field control effectiveness test, in 15,16,18,24 pairs of same environment of reference examples, herbage and other weeds all have no effect.
As can be seen from the above table, identical component and ratio composition be prepared into different preparation types, or used outside the compositions such as different auxiliary materials in identical preparation type, its practical application effect obtaining is different; In upper table, only enumerated the field control effectiveness test of part reference examples of the present invention in the time being prepared into preparation, all the other reference examples of the present invention can be inferred the toxic effect of climbing groundsel accordingly according to its composition.
In upper table, in the data obtained interval, a is minimum, u is for the highest, as can be seen from the above table, the field efficacy of reference examples 24 and reference examples 15 is substantially identical, reference examples 18 has best field efficacy, reference examples 16 is slightly taken second place, difference be mainly reference examples 18 and reference examples 16 for Senecio faberii Hemsl plant in medication the drug effect result after 15 days.
In addition, as can be seen from the above table, wetting powder is compared to common granular preparation or pulvis, and it has better field efficacy result; In wetting powder, the selection of wetting agent and dispersant has different drug effect differences equally, and wherein, when wetting agent is lauryl sodium sulfate, when dispersant is MF, the field efficacy result of its made preparation is the most obvious.
In addition, from upper table, also can find out, the content of the present composition in finished product preparation need to just can draw better content ratio through test of many times equally; The present invention draws from upper table, and the weed killer herbicide of prevention and control climbing groundsel of the present invention is preferably to adopt and contains the foregoing that mass fraction is 25%-40%, and more preferably adopting mass fraction is 40% foregoing.
From upper table, also can find out, in climbing groundsel, the weed killer herbicide of prevention and control climbing groundsel of the present invention can be effectively for Senecio faberii Hemsl plant, and the field efficacy result that it plays is better than other climbing groundsel plants.
Below be only the preferred embodiment of the present invention, it should be pointed out that above-mentioned preferred embodiment should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. a composition for prevention and control climbing groundsel, is characterized in that: described composition contains fomesafen and clopyralid, and the mass ratio of described fomesafen and clopyralid is 1:4-8.
2. composition claimed in claim 1 is for the application of prevention and control climbing groundsel, it is characterized in that: described in be applied as and comprise climbing groundsel as weeds and with described composition, climbing groundsel killed or suppressed, or described composition is prepared into the weed killer herbicide of prevention and control climbing groundsel.
3. application according to claim 2, is characterized in that: described climbing groundsel is Senecio faberii Hemsl.
4. a weed killer herbicide for prevention and control climbing groundsel, is characterized in that: described weed killer herbicide includes the composition of prevention and control climbing groundsel claimed in claim 1.
5. weed killer herbicide according to claim 4, is characterized in that: described weed killer herbicide includes the composition that mass fraction is the described prevention and control climbing groundsel of 25%-40%.
6. weed killer herbicide according to claim 4, is characterized in that: the formulation of described weed killer herbicide is wetting powder.
7. weed killer herbicide according to claim 6, it is characterized in that: the dispersant of the described composition of prevention and control climbing groundsel that described wetting powder contains 25%-40% and the wetting agent of 1-2%, 1-5%, in described composition, the mass ratio of fomesafen and clopyralid is 1:4-8.
8. weed killer herbicide claimed in claim 4, for the application of prevention and control climbing groundsel, is characterized in that: described in be applied as and comprise climbing groundsel as weeds and with described weed killer herbicide, climbing groundsel killed or suppressed.
9. application according to claim 8, is characterized in that: described climbing groundsel is Senecio faberii Hemsl.
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| US20110230349A1 (en) * | 2010-03-22 | 2011-09-22 | Dow Agrosciences Llc | High-strength, low viscosity herbicidal concentrate of clopyralid dimethylamin |
| CN102273465A (en) * | 2011-06-25 | 2011-12-14 | 陕西美邦农药有限公司 | Weeding composition containing florasulam and clopyralid |
| WO2011159884A1 (en) * | 2010-06-17 | 2011-12-22 | Dow Agrosciences Llc | Synergistic herbicidal composition containing clopyralid and florasulam |
| CN102986688A (en) * | 2012-12-20 | 2013-03-27 | 联保作物科技有限公司 | Soybean field weeding composition and preparation thereof |
-
2013
- 2013-04-03 CN CN201310115991.3A patent/CN103155922B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110230349A1 (en) * | 2010-03-22 | 2011-09-22 | Dow Agrosciences Llc | High-strength, low viscosity herbicidal concentrate of clopyralid dimethylamin |
| WO2011159884A1 (en) * | 2010-06-17 | 2011-12-22 | Dow Agrosciences Llc | Synergistic herbicidal composition containing clopyralid and florasulam |
| CN102273465A (en) * | 2011-06-25 | 2011-12-14 | 陕西美邦农药有限公司 | Weeding composition containing florasulam and clopyralid |
| CN102986688A (en) * | 2012-12-20 | 2013-03-27 | 联保作物科技有限公司 | Soybean field weeding composition and preparation thereof |
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| 余慧灵 等.峨眉千里光防控药剂的筛选及防治效果.《湖北农业科学》.2012,第51卷(第21期),第4776页摘要、第4777-4779页结果与分析、讨论部分. |
| 刘琦 等.峨眉千里光甲醇提取物杀虫、抑菌及抑制种子萌发活性的初步研究.《农药科学与管理》.2012,第33卷(第9期),第15-18页. |
| 峨眉千里光甲醇提取物杀虫、抑菌及抑制种子萌发活性的初步研究;刘琦 等;《农药科学与管理》;20120915;第33卷(第9期);第15-18页 * |
| 峨眉千里光防控药剂的筛选及防治效果;余慧灵 等;《湖北农业科学》;20121105;第51卷(第21期);第4776页摘要、第4777-4779页结果与分析、讨论部分 * |
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| CN103155922A (en) | 2013-06-19 |
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