CN109497071A - The herbicidal composition and its application of the ether of grass containing fluoropyrimidine and chlorine fluorine pyridine ester - Google Patents
The herbicidal composition and its application of the ether of grass containing fluoropyrimidine and chlorine fluorine pyridine ester Download PDFInfo
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- CN109497071A CN109497071A CN201910023747.1A CN201910023747A CN109497071A CN 109497071 A CN109497071 A CN 109497071A CN 201910023747 A CN201910023747 A CN 201910023747A CN 109497071 A CN109497071 A CN 109497071A
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- fluorine pyridine
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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
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
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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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- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
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Abstract
The invention belongs to pesticide herbicide fields, and in particular to the herbicidal composition and its application of the ether of grass containing fluoropyrimidine and chlorine fluorine pyridine ester.Herbicidal composition of the present invention includes the fluoropyrimidine grass ether and chlorine fluorine pyridine ester of herbicidally effective amount；The weight ratio of fluoropyrimidine grass ether and chlorine fluorine pyridine ester is 1:0.1~20, and the mass percentage that fluoropyrimidine grass ether and chlorine fluorine pyridine ester account for herbicidal composition total amount is 1~90%.The weed problems such as barnyard grass, semen euphorbiae grass, cyperus iria, the Monochoria vaginalis in the crop fields are effectively prevented and kill off in the herbicidal composition, are had and are expanded degrass spectrum, reduce amount of application, to crop safety, are conducive to overcome and delay the generation of herbicide resistance.
Description
Technical field
The invention belongs to pesticide herbicide fields, and in particular to the combinations of herbicides of the ether of grass containing fluoropyrimidine and chlorine fluorine pyridine ester
Object and its application.
Background technique
Often there is different degrees of lack on Agriculture Field control of weeds in the herbicide kind containing single active ingredient
It falls into, if weeds are easy to produce drug resistance after continuous administration, degrass spectrum is narrow, and application times can mostly aggravate environmental pollution.For prevention and treatment
The weeds of resistance are agriculturally generated, a kind of method is to release the new new component with existing kind no interactions resistance.But new
The development cost of effective component is high, and the development cycle is long, and does not all catch up with the speed that weeds generate resistance forever.Other methods
Such as crop structure adjustment, different pesticide rotations etc., during practical operation, it is difficult really to play apparent effect.
Fluoropyrimidine grass ether (alias: the phonetic oxime grass ether of fluorine), chemical name: O- [2,6- bis- (4,6- dimethoxy -2- pyrimidine radicals) oxygen
Base] Benzoylbenzene (2- trifluoromethyl) formaldoxime, the synthetic technology and single use technology of fluoropyrimidine grass ether exist
CN105272924A, CN103333121B document disclose, and belong to pyrimidine salicylic acid compounds, are absorbed and are inhibited by weeds cauline leaf
Vinegar milk acid synthesizes and hindered aminoacid biosynthesis branch, is optional water herbicides for use in paddy, and prevention and treatment barnyard grass effect is especially significant.
Fluorine chloropyridine ester is the first product in synthetic auxin class herbicide in the new chemical type of aryl-pyridine acid.Its mould
The effect for having intended high dose plant growth regulator, causes specific auxin to adjust the overstimulation of gene, and interference is sensitive
Multiple growth courses of plant.PMRA is pointed out, almost without residual action after herbicide bud post-processing, to 10 months kinds after medication
It is big that leeway may be selected in many rotation crops planted.
Different cultivars ingredient is compounded, and is the prevention and treatment most common method of resistant weed.Heterogeneity is compounded, can be with
Preventive effect is improved, the dosage for expanding degrass spectrum, reducing effective component saves drug cost, reduces environmental pollution, is integrated control field
Between weeds important means.
Summary of the invention
To overcome drawbacks described above existing in the prior art, the present invention is intended to provide a kind of complex composition, and made
Small at resistance risk, at low cost, good drug efficacy, the agricultural weeds in field that the lasting period is long, environmental pollution is small prevent and treat complex weedicide.
The invention is realized by the following technical scheme:
A kind of herbicidal composition of the ether of grass containing fluoropyrimidine and chlorine fluorine pyridine ester includes the fluoropyrimidine grass of herbicidally effective amount
Ether and chlorine fluorine pyridine ester；The weight ratio of fluoropyrimidine grass ether and chlorine fluorine pyridine ester is 1:0.1~20, fluoropyrimidine grass ether and chlorine fluorine pyridine
The mass percentage that ester accounts for herbicidal composition total amount is 1~90%.
Specifically, the weight ratio of the fluoropyrimidine grass ether and chlorine fluorine pyridine ester is 1:2~15.
The mass percentage that the fluoropyrimidine grass ether and chlorine fluorine pyridine ester account for herbicidal composition total amount is 10~70%.
It further include carrier, auxiliary agent in the herbicidal composition.
Wherein, carrier is one of water, soybean oil, methyl oleate or filler or a variety of, the preferred deionized water of water.
The filler is in kaolin, diatomite, bentonite, attapulgite, white carbon black, starch or precipitated calcium carbonate
The mixture of one or more compositions.
Wherein, auxiliary agent includes at least a kind of surfactant and can be also added antifreeze according to different use occasion and demand
The other functions auxiliary agent such as agent, thickener, stabilizer, disintegrating agent, defoaming agent.
The surfactant is selected from one of emulsifier, dispersing agent, wetting agent or bleeding agent or a variety of.Above-mentioned surface
Activating agent is the single dose or compound preparation of common nonionic surfactant or anionic surfactant.
The other function auxiliary agent is a kind of or more in antifreezing agent, thickener, stabilizer, disintegrating agent or defoaming agent
Kind.
The emulsifier is selected from agriculture breast 500# (alkyl benzene calcium sulfonate), OP series phosphate (nonylphenol polyoxyethylene ether phosphorus
Acid esters), 600# phosphate (phenyl phenol polyoxyethylene ether phosphate), styrene polyoxyethylene ether ammonium sulfate salt, alkyl biphenyl ether
Disulfonic acid magnesium salts, triethanolamine salt, agriculture breast 400# (benzyl dimethyl phenol polyoxyethyl ether), Nongru-700 # (alkylphenol formaldehyde tree
Rouge polyoxyethyl ether), peaceful cream 36# (phenethyl phenol formaldehyde resin polyoxyethyl ether), agriculture breast 1600# (phenethyl phenol polyoxyethanyl
Polypropylene-base ether), ethylene oxide-propylene oxide block copolymer, OP serial (nonylphenol polyoxyethylene ether), the serial (castor-oil plant of BY
Oily polyoxyethylene ether), agriculture breast 33# (alkylaryl polyoxyethylene poly-oxygen propylene aether), Span series (sorbitol anhydride monostearate),
One of TWEEN Series (anhydrous sorbitol resin acid ester APEO) or AEO serial (fatty alcohol polyoxyethylene ether) are more
The mixture of kind composition.
The dispersing agent be selected from polycarboxylate, lignosulfonates, APES formaldehyde condensation products sulfat,
Alkyl benzene calcium sulfonate, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkyl phenol polyoxyethylene ether, aliphatic amine polyoxyethylene ether, fatty acid polyglycol
The mixture of one of ethylene oxide ether or glycerol fatty acid ester polyoxyethylene ethe or a variety of compositions.
The wetting agent is selected from lauryl sodium sulfate, neopelex, Nekal BX, wetting and penetrating agent F, soap
The mixture of one of angle powder, silkworm excrement or spaonin powder or a variety of compositions.
The bleeding agent is selected from penetrating agent JFC (fatty alcohol polyoxyethylene ether), penetrant t (diisooctyl maleate
Sulfonate), the mixture of one of azone or organosilicon or a variety of compositions.
The antifreezing agent is selected from the mixture of one of ethylene glycol, propylene glycol, glycerine or urea or a variety of compositions.
The thickener be selected from one of xanthan gum, polyvinyl alcohol, bentonite, carboxymethyl cellulose or aluminium-magnesium silicate or
The mixture of a variety of compositions.
The stabilizer is selected from epoxidized soybean oil, one of epoxychloropropane, BHT, ethyl acetate or triphenyl phosphate
Or the mixture of a variety of compositions.
The disintegrating agent is selected from bentonite, urea, ammonium sulfate, aluminium chloride, low-substituted hydroxypropyl cellulose, lactose, lemon
The mixture of one of acid, succinic acid or sodium bicarbonate or a variety of compositions.
The defoaming agent is selected from silicone oil, silicone compound, C10~C20 saturated fat acids compound or C8~C10 rouge
The mixture of one of fat alcohol compound or a variety of compositions.
Herbicidal composition of the invention can used before through dilution or directly by user.Its preparation can be by leading to
Normal processing method preparation after mixing active material with liquid solvent or solid carrier, adds surfactant as divided
One or more of powder, stabilizer, wetting agent, adhesive, defoaming agent etc..
The herbicidal composition dosage form is wettable powder, water dispersible granules, aqueous suspension agent or dispersible oil-suspending agent.
Composition of the invention can be mixed with conventional use of solid in the formula of the prior art and liquid additive.
The present invention also provides a kind of application of said herbicidal composition in prevention and treatment crop on injurious weed.The present invention
The herbicidal composition of offer is for preventing and treating paddy field barnyard grass, semen euphorbiae, Paspalum distichum, flat stalk Fischer grass, annual nutgrass flatsedge etc.；It is right
The weeds such as false loosestrife, arrowhead, sweet wine intestines, bog pondweed, bur beggar-ticks, Herba Cyperi Glomerati, cyperus iria, needle spikesedge herb, mexicana, Monochoria vaginalis have one
Fixed preventive effect, and the administration dosage of each effective component can be reduced, it reduces cost, reduce pollution.
Compared with prior art, the beneficial effect that the present invention obtains is:
(1) herbicidal composition broad weed-killing spectrum prepared by the present invention, to field gramineae weed, broadleaf weeds and nutgrass flatsedge
There is preferable preventive effect, it is especially good to the malignant weed preventive effect for being difficult to prevent and kill off；
(2) drug effect improves, and the field rate decline of effective component reduces production and application cost, reduces pesticide residue
And environmental pollution；
(3) it is made of the effective component of different role mechanism, action site increases, and is conducive to overcome and delay the anti-medicine of weeds
The generation of property.
Specific embodiment
Experimental method described in following embodiments is unless otherwise specified conventional method；It is not specified in embodiment specific
Technology or conditions person described technology or conditions or carries out according to the literature in the art according to product description；It is described
Reagent and material are all made of analytical reagents, unless otherwise specified, commercially obtain.
One, herbicide indoor toxicity test
Percentage is mass percent in following embodiment.
Embodiment 1
Indoor measurement embodiment 1 prepares composition to the virulence coefficient of barnyard grass.Test method is as follows: setting control CK1 (three
Azole amide) and CK2 (diflufenican), and fluoropyrimidine grass ether and chlorine fluorine pyridine ester are made into sample, room by the proportion of table 1 respectively
Interior potting barnyard grass is fully deployed to barnyard grass cotyledon and grows 1-2 piece true leaf, and with the chemicals treatment of different ratio, each proportion does 5
A each concentration for the treatment of of various concentration gradient does 4 repetitions.Herbicidal effect is converted into probability value (Y), liquid dose (μ g/g)
It is converted into logarithm (x), the inhibition probability value and its dosage logarithmic regression equation (virulence regression equation) of different ratio are established, with most
Small square law, which calculates, measures LD50 value in the inhibition of each proportion, and finds out the coefficient of synergism SR of different ratio, is commented according to coefficient of synergism
The synergistic effect of valence compounding agent determines optimum proportioning, and spray counts the barnyard grass survival number and death toll of each processing after 14 days, calculates
The death rate.The virulence regression equation and LD50 value for implementing different ratio, herbicidal effect, coefficient of synergism meter are calculated with probability value method
It is as follows to calculate formula:
A represents fluoropyrimidine grass ether in above formula, and B represents chlorine fluorine pyridine ester, and a, b respectively represent fluoropyrimidine grass ether and chlorine fluorine pyridine
Mass percent of the ester in mixture.
Make evaluation according to coefficient of synergism SR: when SR is greater than 1.5, showing that mixture has synergistic effect, when SR 0.5~
It is antagonism when SR is less than 0.5 to be added when 1.5.
The results are shown in Table 1 for toxicity test of the different ratio composition to barnyard grass in embodiment 1.
1 fluoropyrimidine grass ether of table is with chlorine fluorine pyridine ester different ratio to the toxicity test result of barnyard grass
Different ratio composition is as shown in table 2 to the synergy measurement result of barnyard grass in embodiment 1.
2 fluoropyrimidine grass ether of table is with chlorine fluorine pyridine ester different ratio to the synergy measurement result of barnyard grass
| Medicament | Actual observation value LD50 | Theoretical value LD (th) 50 | Coefficient of synergism SR |
| Fluoropyrimidine grass ether: chlorine fluorine pyridine ester=1:0.05 | 11.5671 | 14.15407279 | 1.22452147 |
| Fluoropyrimidine grass ether: chlorine fluorine pyridine ester=1:0.1 | 9.2759 | 14.1334785 | 1.523840822 |
| Fluoropyrimidine grass ether: chlorine fluorine pyridine ester=1:0.5 | 9.2356 | 13.94994862 | 1.512080121 |
| Fluoropyrimidine grass ether: chlorine fluorine pyridine ester=1:1 | 9.1632 | 14.02409452 | 1.5321422 |
| Fluoropyrimidine grass ether: chlorine fluorine pyridine ester=1:2 | 7.6031 | 13.87656185 | 1.825369027 |
| Fluoropyrimidine grass ether: chlorine fluorine pyridine ester=1:4 | 5.7844 | 13.81841381 | 2.389333565 |
| Fluoropyrimidine grass ether: chlorine fluorine pyridine ester=1:6 | 6.6386 | 13.79364237 | 2.077470913 |
| Fluoropyrimidine grass ether: chlorine fluorine pyridine ester=1:8 | 6.3527 | 13.78991859 | 2.169495112 |
| Fluoropyrimidine grass ether: chlorine fluorine pyridine ester=1:10 | 7.4642 | 13.78119954 | 1.845214788 |
| Fluoropyrimidine grass ether: chlorine fluorine pyridine ester=1:15 | 8.0463 | 13.76895704 | 1.714244085 |
| Fluoropyrimidine grass ether: chlorine fluorine pyridine ester=1:20 | 8.7868 | 13.75455298 | 1.566924085 |
| Fluoropyrimidine grass ether: chlorine fluorine pyridine ester=1:22 | 10.7266 | 13.75087204 | 1.306288574 |
As can be seen from Table 1 and Table 2: fluoropyrimidine grass ether and chlorine fluorine pyridine ester the synergy system when weight ratio is 1:0.1~20
Number is all larger than 1.5, shows as synergistic effect, synergy is most obvious within the scope of the weight ratio of 1:2~15.Illustrate that using weight ratio be 1:
0.1~20 fluoropyrimidine grass ether: the compound preparation prevention and treatment barnyard grass of chlorine fluorine pyridine ester has reasonability and feasibility.
It is measured respectively using the above method to paddy field semen euphorbiae, false loosestrife, cyperus iria, needle spikesedge herb, mexicana, duck
Tongue grass control efficiency, and the coefficient of synergism within the scope of different ratio is calculated, obtain fluoropyrimidine grass ether and chlorine fluorine pyridine ester in weight
Synergy most apparent conclusion amount is than to show as synergistic effect, 1:2~15 when 1:0.1~20 when.
Two, herbicidal composition field function and effect
2~11 herbicidal composition for illustrating different activities composition proportion of the present invention, dosage form with reference to embodiments
Field function and effect.Percentage is mass percent in embodiment, and the treatment dosage of field efficacy is that effective component is used
Amount.
Embodiment 2:(22% fluoropyrimidine grass ether chlorine fluorine pyridine ester wettable powder) 1:0.1
Component and content: fluoropyrimidine grass ether, 20%；Chlorine fluorine pyridine ester, 2%；Wetting agent lauryl sodium sulfate, 2%；Point
Powder calcium lignosulfonate, 8%；Filler white carbon black, 18%, filler kaolin, surplus.
Embodiment 3:(20% fluoropyrimidine grass ether chlorine fluorine pyridine ester wettable powder) 1:1
Component and content: fluoropyrimidine grass ether, 10%；Chlorine fluorine pyridine ester, 10%；Wetting agent lauryl sodium sulfate, 3%；
Dispersing agent calcium lignosulfonate, 10%；Filler light calcium, 18%, filler kaolin, surplus.
Embodiment 4:(30% fluoropyrimidine grass ether chlorine fluorine pyridine ester wettable powder) 1:2
Component and content: fluoropyrimidine grass ether, 10%；Chlorine fluorine pyridine ester, 20%；Wetting agent lauryl sodium sulfate, 4%；
Dispersing agent calcium lignosulfonate, 13%；Filler white carbon black, 15%, filler kaolin, surplus.
Above-described embodiment 2~4 the preparation method comprises the following steps: in Example formulations ratio, by effective component fluoropyrimidine grass ether and chlorine
Fluorine pyridine ester is added in carrier, and surfactant and other function auxiliary agent are added wherein, mixing, after air-flow crushing again
It is mixed to prepare wettable powder.Capital equipment has mixing machine, airslide disintegrating mill.
Embodiment 5:(30% fluoropyrimidine grass ether chlorine fluorine pyridine ester water dispersible granules) 1:4
Component and content: fluoropyrimidine grass ether, 6%；Chlorine fluorine pyridine ester, 24%；Wetting agent dodecylbenzene sodium sulfonate, 3%；Point
Powder alkylnaphthalene sulfonate formaldehyde condensation products, 8%；Filler attapulgite, surplus.
Embodiment 6:(45% fluoropyrimidine grass ether chlorine fluorine pyridine ester water dispersible granules) 1:8
Component and content: fluoropyrimidine grass ether, 5%；Chlorine fluorine pyridine ester, 40%；Wetting agent Nekal BX, 5%；Dispersing agent alkane
Base phenol polyethenoxy ether formaldehyde condensation products sulfate, 10%；Filler kaolin, surplus.
Embodiment 7:(55% fluoropyrimidine grass ether chlorine fluorine pyridine ester water dispersible granules) 1:10
Component and content: fluoropyrimidine grass ether, 5%；Chlorine fluorine pyridine ester, 50%；Wetting agent sodium dodecyl sulfate, 5%；Dispersion
Agent alkyl phenol polyoxyethylene ether, 8%；Filler bentonite, surplus.
5~7 preparation method of above-described embodiment: in Example formulations ratio, by effective component fluoropyrimidine grass ether and chlorine fluorine pyrrole
Pyridine ester is added in carrier, and surfactant and other function auxiliary agent are added wherein, mixing, after air-flow crushing plus 10~
Then water dispersible granules product is made through kneading, granulation, drying, screening in 25% water；Or the powder that crushed is made in boiling
Water spray, granulation, drying, sieve product is made later in grain machine.Capital equipment has mixing machine, airslide disintegrating mill, kneader, extruding
Pelletizer, drying chamber or fluidized bed drying or boiling granulator, screening machine.
Embodiment 8:(39% fluoropyrimidine grass ether chlorine fluorine pyridine ester aqueous suspension agent) 1:12
Component and content: fluoropyrimidine grass ether, 3%；Chlorine fluorine pyridine ester, 36%；Emulsifier agriculture breast OP-10,1.5%；Dispersion
Agent polycarboxylate, 5%；Thickener selects xanthan gum and aluminium-magnesium silicate, dosage are respectively 0.13% and 2%；Antifreezing agent propylene glycol,
5%；Defoaming agent silicone compound, 0.5%；Water, surplus.
Embodiment 9:(64% fluoropyrimidine grass ether chlorine fluorine pyridine ester aqueous suspension agent) 1:15
Component and content: fluoropyrimidine grass ether, 4%；Chlorine fluorine pyridine ester, 60%；Emulsifier styrene polyoxyethylene ether sulfuric acid
Ammonium salt, 3.5%；Dispersing agent aliphatic acid polyethenoxy ether, 5%；Thickener selects xanthan gum and aluminium-magnesium silicate, dosage are respectively
0.13% and 2%；Antifreezing agent propylene glycol, 3%；Defoaming agent silicone compound, 0.5%；Water, surplus.
Embodiment 10:(42% fluoropyrimidine grass ether chlorine fluorine pyridine ester aqueous suspension agent) 1:20
Component and content: fluoropyrimidine grass ether, 2%；Chlorine fluorine pyridine ester, 40%；Emulsifier agriculture breast OP-10,1.5%；Dispersion
Agent polycarboxylate, 5%；Thickener selects xanthan gum and aluminium-magnesium silicate, dosage are respectively 0.13% and 2%；Antifreezing agent propylene glycol,
5%；Defoaming agent silicone compound, 0.5%；Water, surplus.
Above-described embodiment 8~10 is the preparation method comprises the following steps: press formula rate, by effective component fluoropyrimidine grass ether and chlorine fluorine pyridine
Ester, surfactant and other function auxiliary agent are sequentially placed into reaction kettle, are mixed with water, through high speed shear, wet process sand
Mill, it is finally homogeneous to filter up to product.Capital equipment is batching kettle, colloid mill or homogeneous mixing machine, sand mill.
Oil-suspending agent can be dispersed in embodiment 11:(25% fluoropyrimidine grass ether chlorine fluorine pyridine ester) 1:4
Component and content: fluoropyrimidine grass ether, 5%；Chlorine fluorine pyridine ester, 20%；Emulsifier selects agriculture breast 500# and agriculture breast
700#, dosage are respectively 10% and 8%；Dispersant polycarboxylate 5%, methyl oleate or soybean oil, surplus.
Preparation method: pressing formula rate, by effective component fluoropyrimidine grass ether and chlorine fluorine pyridine ester, surfactant and other
Functional aid is sequentially placed into reaction kettle, and methyl oleate is added to be uniformly mixed, and through high speed shear, is sanded, and last homogeneous filtering is
Obtain product.Capital equipment is batching kettle, colloid mill or homogeneous mixing machine, sand mill.
Tri- azole amide missible oil of comparative example 1:50g/L
Comparative example 1 is contrast agents, buys resulting single active ingredient medicament by market.
Comparative example 2:80% diflufenican water dispersible granules
Comparative example 2 is contrast agents, buys resulting single active ingredient medicament by market.
Underneath with compound herbicide made from embodiment 2~11 and comparative example 1, comparative example 2 for paddy field weed into
Row field control effectiveness test, beneficial effects of the present invention are better described, test result is as shown in table 1 below.
Embodiment medicament, comparative example medicament are set in this field trial and without using totally 9 processing of any medicament, each processing
It is repeated 4 times, totally 36 processing cells, 3~5 leaf phase cauline leaf of weeds is spraying after rice seedlings.Every processing cell takes at 3 points at random, often
Point 0.33m2, respectively 30 days after medication, the healthy strain number of 60 days investigation various weeds of each point, after medicine 60 days in investigation weeds strain
While number, fresh weight preventive effect is investigated.It the results are shown in Table 3, table 4 and table 5.
3 embodiment and comparative example of table prevents and kill off paddy field weed strain preventive effect (%) (after medicine 30 days)
4 embodiment and comparative example of table prevents and kill off paddy field weed strain preventive effect (%) (after medicine 60 days)
5 embodiment and comparative example of table prevents and kill off paddy field weed fresh weight preventive effect (%) (after medicine 60 days)
After fluoropyrimidine grass ether and chlorine fluorine pyridine ester mixture be can be seen that from the test result of table 3, table 4 and table 5, to grass
Section weeds and broadleaf weeds have preferable control efficiency, show to compound by fluoropyrimidine grass ether and chlorine fluorine pyridine ester, have and expand
The effect of big degrass spectrum.It is observed during test, rice is without symptom of chemical damage, and test medicine is to rice safety.
Certainly, above content is only presently preferred embodiments of the present invention, be should not be construed as limiting to implementation of the invention
Example range.The present invention is also not limited to the example above, and those skilled in the art are in essential scope of the invention
Interior made all the changes and improvements etc., should all belong in patent covering scope of the invention.
Claims (6)
1. a kind of herbicidal composition of the ether of grass containing fluoropyrimidine and chlorine fluorine pyridine ester, which is characterized in that the composition includes
The fluoropyrimidine grass ether and chlorine fluorine pyridine ester of herbicidally effective amount；The weight ratio of the fluoropyrimidine grass ether and chlorine fluorine pyridine ester is 1:0.1
~20, the mass percentage that the fluoropyrimidine grass ether accounts for herbicidal composition total amount with chlorine fluorine pyridine ester is 1~90%.
2. herbicidal composition according to claim 1, which is characterized in that the fluoropyrimidine grass ether and chlorine fluorine pyridine ester
Weight ratio is 1:2~15.
3. herbicidal composition according to claim 1, which is characterized in that the fluoropyrimidine grass ether is accounted for chlorine fluorine pyridine ester
The mass percentage of herbicidal composition total amount is 10~70%.
4. herbicidal composition according to claim 1, which is characterized in that further include carrying in the herbicidal composition
Body, auxiliary agent.
5. herbicidal composition according to claim 4, which is characterized in that the herbicidal composition dosage form is wettable
Pulvis, water dispersible granules, aqueous suspension agent or dispersible oil-suspending agent.
6. a kind of application of any one of claim 1-5 herbicidal composition in prevention and treatment crop on injurious weed.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105994282A (en) * | 2016-06-21 | 2016-10-12 | 广东中迅农科股份有限公司 | Pesticide composition containing fluoro-pyribenzoxim |
| CN109221141A (en) * | 2018-10-26 | 2019-01-18 | 海利尔药业集团股份有限公司 | A kind of Herbicidal combinations of fluorine-containing phonetic oxime grass ether and chlorine fluorine pyridine ester |
-
2019
- 2019-01-10 CN CN201910023747.1A patent/CN109497071A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105994282A (en) * | 2016-06-21 | 2016-10-12 | 广东中迅农科股份有限公司 | Pesticide composition containing fluoro-pyribenzoxim |
| CN109221141A (en) * | 2018-10-26 | 2019-01-18 | 海利尔药业集团股份有限公司 | A kind of Herbicidal combinations of fluorine-containing phonetic oxime grass ether and chlorine fluorine pyridine ester |
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Application publication date: 20190322 |