CN103798238B - Containing pyraflufen-ethyl and the composition pesticide of phenoxy carboxylic acid herbicides - Google Patents
Containing pyraflufen-ethyl and the composition pesticide of phenoxy carboxylic acid herbicides Download PDFInfo
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- CN103798238B CN103798238B CN201310625833.2A CN201310625833A CN103798238B CN 103798238 B CN103798238 B CN 103798238B CN 201310625833 A CN201310625833 A CN 201310625833A CN 103798238 B CN103798238 B CN 103798238B
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Abstract
The invention discloses a kind of containing pyraflufen-ethyl with the composition pesticide of phenoxy carboxylic acid herbicides, effective ingredient is pyraflufen-ethyl and phenoxy carboxylic acid herbicides, and surplus is insecticides adjuvant.Phenoxy carboxylic acid herbicides is the one in 2 first 4 chlorine, the 2 first 4 different monooctyl esters of chlorine or 2 first 4 chlorine sodium.Pyraflufen-ethyl and phenoxy carboxylic acid herbicides weight ratio in the composition is 1:20～1:60, pyraflufen-ethyl and phenoxy carboxylic acid herbicides weight summation percentage by weight in the composition are 2%～85%, are prepared as suspending agent, the one dispersibled in oil-suspending agent, wettable powder, water dispersible granules when reality is applied.The composition pesticide of the present invention is used for preventing and kill off wheat paddock annual broadleaf weed, effect is better than pyraflufen-ethyl and phenoxy carboxylic acid herbicides is used alone, reduce the using dosage of pesticide, decrease the pesticide adverse effect to ecological environment, effectively administer herbicide resistance problem.
Description
Technical field
The present invention relates to a kind of composition pesticide, be with pyraflufen-ethyl with phenoxy carboxylic acid herbicides for effectively becoming
Point, it is used for preventing and kill off wheat paddock annual broadleaf weed.
Background technology
Chemical method weeding is agriculturally one of Main Means controlling weeds.In recent years, due to glufosinate-ammonium
Large area is used alone, and already leads to a lot of weeds and develops immunity to drugs.Meanwhile, careless phase when weeds occur
Complexity, the most annual and perennial weeds is mixed raw, and draft, liana and shrub have concurrently, and weeds go out
Seedling is uneven, seed, low age, the staggered generation of weeds at advanced age, during so herbicide kind is used alone,
All can show defect in a certain respect and limitation.
Pyraflufen-ethyl is contact phenylpyrazole class herbicide after seedling, and its mechanism of action is suppression plant
Internal proporphyrinogen oxidase, and utilize Semen Tritici aestivi and weeds that the difference of medicine absorption and deposition is produced not
With the metabolite of activity, reach optionally to prevent and treat the effect of wheatland broad leaved weed.
Phenoxy carboxylic acid herbicides can pass through stem and leaf, can also pass through Root Absorption, the medicine that stem and leaf absorbs
Agent is combined with photosynthate conducts in plant along phloem sieve tube, the medicament of root absorption then with
Transpiration moves along xylem vessel, accumulates at separate living tissue.After plant absorption, internal auxin
Concentration higher than normal value, thus broken the hormonal balance in plant, had influence on the normal generation of plant
Thank, cause a series of physiological acoustic signals of susceptible weeds, tissue abnormalities and damage, suppress plant growing
Grow, occur that plant distort, deformity until death.
The mixture of different pesticide species, is the common methods of preventing and treating agricultural disease pest and weed.Pass through formulation of pesticide
Screening, filters out rational formula, can be effectively improved actual prevention effect, reduces dosage, reduces into
This, delay the drug-fast generation of disease pest and weed, is the important means of agricultural synthesis improvement.The present inventor couple
The recipe determination of pyraflufen-ethyl and phenoxy carboxylic acid herbicides conducts in-depth research, and finds pyraflufen-ethyl and benzene oxygen
Carboxylic acids herbicide carries out mixture has obvious summation action, warp in certain mixed ratio scope to weeds
Research, completes the present invention further.
Pyraflufen-ethyl and the mixture of phenoxy carboxylic acid herbicides and application there is no report at present.
Summary of the invention
Technical problem to be solved: it is an object of the invention to solve above-mentioned herbicide actually used in
Not enough, it is provided that a kind of efficient, low cost, the composition pesticide of beneficially weeds comprehensive control.
It is a further object of the present invention to provide and be applied to this Herbicidal combinations prevent and kill off the annual broad-leaved of wheat paddock
Weeds.
Technical scheme: for achieving the above object, the present invention provides a kind of and removes with pyraflufen-ethyl and phenoxy carboxylic acid
Grass agent be the composition pesticide of effective ingredient, described phenoxy carboxylic acid herbicides selected from 2 first 4 chlorine, 2
One in the different monooctyl ester of first 4 chlorine or 2 first 4 chlorine sodium, pyraflufen-ethyl and phenoxy carboxylic acid herbicides are in compositions
In weight ratio be 1:20～1:60, pyraflufen-ethyl and phenoxy carboxylic acid herbicides weight summation are in compositions
Middle percentage by weight is 2%～85%, and surplus is the most spendable insecticides adjuvant.
Described composition pesticide, by pesticide production technology be prepared as suspending agent, dispersible oil-suspending agent,
Wettable powder, the one of water dispersible granules.The production technology of various application forms all belongs to existing known skill
Art, does not repeats them here.
The composition pesticide that the present invention provides, can be applicable to prevent and kill off wheat paddock annual broadleaf weed.
Glufosinate-ammonium and the Herbicidal combinations of picolinic acid class, generally employing stem and leaf that the present invention provides are sprayed
Method uses, it is also possible to use other use technology agriculturally applied as required.
The Herbicidal combinations that the present invention provides has the advantages that:
1, the composition pesticide that the present invention provides, shows obvious summation action in certain ratio range,
The prevention effect of compositions is significantly improved than single dose, reduces the using dosage of pesticide, decreases use
Medicine number of times, reduces drug cost, decreases the pesticide adverse effect to ecological environment.
2, the composition pesticide that the present invention provides, two kinds of effective ingredient mechanism of action are different, Ke Yike
Take long-term single use and easily produce the shortcoming of resistance, extend the service life of medicament, to Weed Resistance
Comprehensive control important in inhibiting.
3, the composition pesticide that the present invention provides, use cost is low, easy to use, time saving and energy saving, and it pushes away
Wide application has huge economic benefit and social benefit.
Detailed description of the invention
The present invention is illustrated by specific examples below, but the invention is not restricted to specific examples below.
In embodiment, each component percentages is weight percentage.
Embodiment one: pyraflufen-ethyl and phenoxy carboxylic acid herbicides formulation screening test.
For further appreciating that pyraflufen-ethyl and the synergy to weeds of the phenoxy carboxylic acid mixture, the present inventor couple
Pyraflufen-ethyl and phenoxy carboxylic acid herbicides mixture have carried out formulation screening test:
Test material:
Herba Galii Teneri [Galium aparine L.var.tenerum] (field collection Seed storage).
Cattle cattle Herba stellariae mediae [Malachium aquaticum(L.) Fries.] (field collection Seed storage).
Test apparatus:
Controlled illumination box；POTTER precision laboratory spray tower；Electronic balance (sensibility reciprocal 0.1mg)；
Micropipette rifle etc..
Test method:
The purity first weighing certain mass is the 95% former medicine of pyraflufen-ethyl, the 95%2 first 4 former medicines of chlorine, 95%2 first
The 4 chlorine former medicine of different monooctyl ester, the 88%2 first 4 former medicines of chlorine sodium, add the tween with 0.1% after acetone fully dissolves
80 aqueous solution dilutions, are configured to single dose mother solution respectively, arrange series proportioning, Mei Gepei according to mixture purpose
Ratio arranges 5～7 Concentraton gradient.Representative susceptible weeds seed is selected according to single dose weed control spectrum,
Cultivate standby to 2 leaf 1 hearts.After being processed by the weeds stem and leaf selecting numbering, it is placed on room in illumination box
Temperature is cultivated 20 days, calculates prevention effect (fresh weight), then calculates dense EC in suppression with method of least square50
(95% confidence limit), then calculate co-toxicity coefficient (CTC) by the abundant method of Sun Yun.
Co-toxicity coefficient (CTC) >=120 shows as potentiation；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 EC50/ reagent agent EC50) × 100.
(TTI)=(percentage composition of A in the toxicity index × mixture of A)+(virulence of B refers to theoretical toxicity index
The percentage composition of B in number × mixture).
Co-toxicity coefficient (CTC)=[mixture actual measurement toxicity index (ATI)/mixture theory toxicity index (TTI)]
×100。
Measurement result shows (be shown in Table 1～table 6): pyraflufen-ethyl respectively with 2 first 4 chlorine, the 2 first 4 different monooctyl esters of chlorine, 2
First 4 chlorine sodium, between mixed ratio 1:20～60, has obvious potentiation or summation action.Pyraflufen-ethyl
With 2 first 4 chlorine when 1:50, obvious to Herba Galii Teneri and cattle Herba stellariae mediae potentiation, co-toxicity coefficient exists respectively
132.34 and 133.44；Pyraflufen-ethyl and the 2 first 4 different monooctyl esters of chlorine are when 1:60, to Herba Galii Teneri and cattle Herba stellariae mediae
Potentiation is obvious, and co-toxicity coefficient is respectively 144.17 and 133.34；Pyraflufen-ethyl and 2 first 4 chlorine sodium are 1:
When 60, obvious to Herba Galii Teneri and cattle Herba stellariae mediae potentiation, co-toxicity coefficient is respectively 140.36 and 128.51；
The synergy of Herba Galii Teneri is measured by table 1, different ratio pyraflufen-ethyl with 2 first 4 chlorine.
The synergy of cattle Herba stellariae mediae is measured by table 2, different ratio pyraflufen-ethyl with 2 first 4 chlorine.
The synergy of Herba Galii Teneri is measured by table 3, different ratio pyraflufen-ethyl with the 2 first 4 different monooctyl esters of chlorine.
The synergy of cattle Herba stellariae mediae is measured by table 4, different ratio pyraflufen-ethyl with the 2 first 4 different monooctyl esters of chlorine.
The synergy of Herba Galii Teneri is measured by table 5, different ratio pyraflufen-ethyl with 2 first 4 chlorine sodium.
The synergy of cattle Herba stellariae mediae is measured by table 6, different ratio pyraflufen-ethyl with 2 first 4 chlorine sodium.
Embodiment two: (51% pyraflufen-ethyl 2 first 4 chlorine suspending agent)
Above-mentioned formula is pulverized the most in advance, adds in sand mill and grind, through high shear mixing
Rear allotment prepares 51% pyraflufen-ethyl 2 first 4 chlorine suspending agent.
Embodiment three: (46% pyraflufen-ethyl 2 first 4 chlorine wettable powder)
Mix homogeneously in blender will be entered after the coarse pulverization in proportion of above-mentioned formula, then after comminution by gas stream be
Prepare and be mixed to prepare 46% pyraflufen-ethyl 2 first 4 chlorine wettable powder.
Embodiment four: (42% pyraflufen-ethyl 2 first 4 chlorine dispersibles oil-suspending agent)
Above-mentioned formula Central Plains medicine, solvent, emulsifying agent are dissolved into homogeneous oil phase；Under high velocity agitation, mixed
Close prepared 42% pyraflufen-ethyl 2 first 4 chlorine and dispersible oil-suspending agent.
Embodiment five: (48% pyraflufen-ethyl 2 first 4 chlorine water dispersible granule)
By above-mentioned formula dry pulverization process in proportion, pelletize, dry, prepared 48% pyraflufen-ethyl 2 first 4 of screening
Chlorine water dispersive granule.
Embodiment six: (41% pyraflufen-ethyl 2 first 4 chlorine different monooctyl ester suspending agent)
Above-mentioned formula is pulverized the most in advance, adds in sand mill and grind, through high shear mixing
Rear allotment prepares 41% pyraflufen-ethyl 2 first 4 chlorine different monooctyl ester suspending agent.
Embodiment seven: (62% pyraflufen-ethyl 2 first 4 chlorine different monooctyl ester wettable powder)
Mix homogeneously in blender will be entered after the coarse pulverization in proportion of above-mentioned formula, then after comminution by gas stream be
Prepare and be mixed to prepare 62% pyraflufen-ethyl 2 first 4 chlorine different monooctyl ester wettable powder.
Embodiment eight: (the 38% pyraflufen-ethyl 2 first 4 different monooctyl ester of chlorine dispersibles oil-suspending agent)
Above-mentioned formula Central Plains medicine, solvent, emulsifying agent are dissolved into homogeneous oil phase；Under high velocity agitation, mixed
Close the prepared 38% pyraflufen-ethyl 2 first 4 different monooctyl ester of chlorine and dispersible oil-suspending agent.
Embodiment nine: (61% pyraflufen-ethyl 2 first 4 chlorine different monooctyl ester water dispersible granules)
By above-mentioned formula dry pulverization process in proportion, pelletize, dry, prepared 61% pyraflufen-ethyl 2 first 4 of screening
Chlorine different monooctyl ester water-dispersible granules.
Embodiment ten: (42% pyraflufen-ethyl 2 first 4 chlorine sodium suspending agent)
Above-mentioned formula is pulverized the most in advance, adds in sand mill and grind, through high shear mixing
Rear allotment prepares 42% pyraflufen-ethyl 2 first 4 chlorine sodium suspending agent.
Embodiment 11: (36% pyraflufen-ethyl 2 first 4 chlorine sodium wettable powder)
Mix homogeneously in blender will be entered after the coarse pulverization in proportion of above-mentioned formula, then after comminution by gas stream be
Prepare and be mixed to prepare 36% pyraflufen-ethyl 2 first 4 chlorine sodium wettable powder.
Embodiment 12: (52% pyraflufen-ethyl 2 first 4 chlorine sodium dispersibles oil-suspending agent)
Above-mentioned formula Central Plains medicine, solvent, emulsifying agent are dissolved into homogeneous oil phase；Under high velocity agitation, mixed
Close prepared 52% pyraflufen-ethyl 2 first 4 chlorine sodium and dispersible oil-suspending agent.
Embodiment 13 (51% pyraflufen-ethyl 2 first 4 chlorine sodium water dispersible granules)
By above-mentioned formula dry pulverization process in proportion, pelletize, dry, prepared 51% pyraflufen-ethyl 2 first 4 of screening
Chlorine sodium water-dispersible granules.
Embodiment 14: to wheat paddock annual broadleaf weed field control effectiveness test.
Reagent agent and dispenser dosage:
(1) 51% pyraflufen-ethyl 2 first 4 chlorine suspending agent (1% pyraflufen-ethyl: 50%2 first 4 chlorine), mu preparation
13.4 grams (1#).
(2) 46% pyraflufen-ethyl 2 first 4 chlorine wettable powders (1% pyraflufen-ethyl: 45%2 first 4 chlorine), mu system
Agent 14.8 grams (2#).
(3) 42% pyraflufen-ethyl 2 first 4 chlorine dispersible oil-suspending agent (2% pyraflufen-ethyl: 40%2 first 4 chlorine), mu
With 17.1 grams of preparation (3#).
(4) 48% pyraflufen-ethyl 2 first 4 chlorine water dispersible granules, (2% pyraflufen-ethyl: 46%2 first 4 chlorine), mu is used
14.9 grams of preparation (4#).
(5) 41% pyraflufen-ethyl 2 first 4 chlorine different monooctyl ester suspending agents, (1% pyraflufen-ethyl: 40%2 first 4 chlorine are different pungent
Ester), mu 39.1 grams of preparation (5#).
(6) 62% pyraflufen-ethyl 2 first 4 chlorine different monooctyl ester wettable powder (2% pyraflufen-ethyl: 60%2 first 4 chlorine are different
Monooctyl ester), mu 26.6 grams of preparation (6#).
(7) the 38% pyraflufen-ethyl 2 first 4 different monooctyl esters of chlorine dispersible oil-suspending agent (1% pyraflufen-ethyl: 37%2 first 4 chlorine
Different monooctyl ester), mu 42.2 grams of preparation (7#).
(8) 61% pyraflufen-ethyl 2 first 4 chlorine different monooctyl ester water dispersible granules (1% pyraflufen-ethyl: 60%2 first 4 chlorine are different
Monooctyl ester), mu 26.2 grams of preparation (8#).
(9) 42% pyraflufen-ethyl 2 first 4 chlorine sodium suspending agents (2 pyraflufen-ethyl: 40%2 first 4 chlorine sodium),
Mu 22.6 grams of preparation (9#).
(10) 36% pyraflufen-ethyl 2 first 4 chlorine sodium wettable powders (1% pyraflufen-ethyl: 35%2 first 4 chlorine sodium),
Mu 25.3 grams of preparation (10#).
(11) 52% pyraflufen-ethyl 2 first 4 chlorine sodium dispersible oil-suspending agent (2% pyraflufen-ethyl: 50%2 first 4 chlorine sodium),
Mu 18.2 grams of preparation (11#).
(12) 51% pyraflufen-ethyl 2 first 4 chlorine sodium water dispersible granules (1% pyraflufen-ethyl: 50%2 first 4 chlorine sodium), mu
With 17.8 grams of preparation (12#).
(13) 2% pyraflufen-ethyl suspending agents, mu 0.8 gram of preparation (13#).
(14) 13%2 first 4 chlorine water agent, mu 50 grams of preparation (14#).
(15) the 43%2 first 4 different monooctyl esters of chlorine, mu 36 grams of preparation (15#).
(16) 13%2 first 4 chlorine sodium water preparations, mu 67 grams of preparation (16#).
(17) clear water (17#).
Dispenser period: the weeds 34 leaf phase, be watered even spraying.
Result of the test: be shown in Table 7, as can be seen from the test results: after medicine 18 days, the pesticide group of the present invention
Compound to the average preventive effect of wheat paddock annual broadleaf weed more than 90.7%, hence it is evident that be better than the list of comparison
Agent, potentiation is notable, and quick-acting and lasting period are substantially better than single dose.
Table 7, preventing and treating wheat paddock annual broadleaf weed field control effectiveness test result (after medicine 18 days).
Claims (2)
1. one kind contains pyraflufen-ethyl and the composition pesticide of phenoxy carboxylic acid herbicides, it is characterised in that effective ingredient is pyraflufen-ethyl and phenoxy carboxylic acid herbicides, and surplus is insecticides adjuvant；Pyraflufen-ethyl and phenoxy carboxylic acid herbicides weight ratio in the composition is 1:20～1:60, and pyraflufen-ethyl and phenoxy carboxylic acid herbicides weight summation percentage by weight in the composition are 2%～85%；Described phenoxy carboxylic acid herbicides is the one in 2 first 4 chlorine, the 2 first 4 different monooctyl esters of chlorine or 2 first 4 chlorine sodium.
The most according to claim 1 containing pyraflufen-ethyl with the composition pesticide of phenoxy carboxylic acid herbicides, it is characterized in that, described Herbicidal combinations is prepared as suspending agent, the one dispersibled in oil-suspending agent, wettable powder, water dispersible granules when actually used.
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| CN107668047A (en) * | 2017-09-27 | 2018-02-09 | 陕西上格之路生物科学有限公司 | A kind of ternary weeding composition containing pyraflufen-ethyl |
| CN107624776A (en) * | 2017-10-31 | 2018-01-26 | 陕西上格之路生物科学有限公司 | A kind of ternary weeding composition containing pyraflufen-ethyl |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101632372A (en) * | 2009-08-25 | 2010-01-27 | 山东先达化工有限公司 | Herbicide composition containing pyraflufen-ethyl |
| CN103281901A (en) * | 2010-11-03 | 2013-09-04 | 陶氏益农公司 | Pesticidal compositions and processes related thereto |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101632372A (en) * | 2009-08-25 | 2010-01-27 | 山东先达化工有限公司 | Herbicide composition containing pyraflufen-ethyl |
| CN103281901A (en) * | 2010-11-03 | 2013-09-04 | 陶氏益农公司 | Pesticidal compositions and processes related thereto |
Non-Patent Citations (2)
| Title |
|---|
| "2甲4氯钠AS对春小麦田阔叶杂草的防效";程亮等;《杂草科学》;20090325(第1期);第68-69页 * |
| "麦田用除草剂吡草醚（pyraflufen-ethyl）";杨国璋;《世界农药》;20111225;第33卷(第6期);第55-56页 * |
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