CN109805025A - A kind of Herbicidal combinations and warm season grassplot herbicides special - Google Patents
A kind of Herbicidal combinations and warm season grassplot herbicides special Download PDFInfo
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Abstract
The present invention relates to herbicide technology field, in particular to a kind of Herbicidal combinations and warm season grassplot herbicides special.The Herbicidal combinations are made of tri- kinds of effective components of A, B and C；Wherein, A is flazasulfuron；B is fluroxypyr or any one of the different monooctyl ester of fluroxypyr, 2 first, 4 chlorine or its sodium salt or its different monooctyl ester, azoles humulone, bentazone, chlorine acyl grass phosphine；C is any one of rimsulfuron, nicosulfuron；A, the weight ratio of B and C is (0.1~90): (0.1~90): (0.1~90).The present invention compounds compound A, B, C, co-toxicity coefficient > 120 of the Herbicidal combinations, is synergistic effect；And the Herbicidal combinations are directed to the herbicides special of warm season grassplot, especially suitable for Bermuda grass, manilagrass lawn, control efficiency is good, quick, dead grass is thoroughly, grain width with double advantageously reduces Pesticide use amount, delays herbicide resistance, it is highly-safe, the technological gap in domestic warm season grassplot herbicide field can be filled up.
Description
Technical field
The present invention relates to herbicide technology field, in particular to a kind of Herbicidal combinations and warm season grassplot herbicides special.
Background technique
Turfgrass can be divided into season type grass and cool-season grasses according to the annidation to temperature.Season type grass is most suitable for life
Long temperature is 25-35 degrees Celsius, can be survived safely within the scope of-5-42 degree, and this kind of grass is in summer or warm area growth
It is vigorous.Warm dosage form lawn is largely used to need the greenery patches, park, highway flower on fast rapid-result level ground because it grows rapid advantage
In the afforestation projects such as altar, sports ground.The closed greenery patches campus in park and highway flower bed garden garden etc..Common warm dosage form
Lawn species have ten several, are belonging respectively to wild ox category, Zoysia, Cynodon, carpetweed category, Eremochloa, Paspalum, blunt
Leaf grass category, Eragrostis, Pennisetum 9 categories, wherein Bermuda grass, Manila grass are the most common warm dosage form lawn species.
China's economic was fast-developing in recent years, and city size constantly expands, and the raising of people's material life, lawn is in city
Gardens, park, cell, road, the cultivated area of sports ground are increasing.The lawn of single variety has matter to beautification of landscape
It is promoted.But weedy lawn is also inevitably encountered, weeds have an impact afforestation effect；While planting lawn is relatively
Intensively, and area is larger, also brings very big workload and labor intensity and cost of labor to weeding work.Therefore weeding
The ratio that cost accounts in lawn maintenance work is increasing and ineffective.
Lawn herbicide is the big sharp weapon for solving Kill weeds, but the season type grass of domestic pesticide market sale at present
Plot herbicide single variety, most of herbicides are effectively several single components such as flazasulfuron, and herbicidal effect is bad.And pyridine is phonetic
For many years, many weeds generate resistance to the grand popularization of sulphur to it, and herbicidal effect is bad, are easy to produce phytotoxicity again after improving dosage.
Therefore lawn herbicide already becomes a great problem of lawn maintenance.
Summary of the invention
In view of this, the present invention provides a kind of Herbicidal combinations and warm season grassplot herbicides specials.The Herbicidal combinations
With interior suction, the multiple actions such as tag, close, control efficiency is good, quick, and dead grass thoroughly, can effectively prevent various grass
Section, broadleaf weeds and resistant weed.Combinations of herbicides of the invention is mainly used for the control of weeds of warm season grassplot, herbicidal effect
Prominent, grain width with double advantageously reduces Pesticide use amount, delays herbicide resistance, highly-safe.
In order to achieve the above-mentioned object of the invention, the present invention the following technical schemes are provided:
The present invention provides a kind of Herbicidal combinations, are made of tri- kinds of effective components of A, B and C；Wherein, A is flazasulfuron；
B is fluroxypyr or the different monooctyl ester of fluroxypyr, 2 first, 4 chlorine or its sodium salt or its different monooctyl ester, azoles humulone, bentazone, chlorine
Any one of acyl grass phosphine；C is any one of rimsulfuron, nicosulfuron；
A, the weight ratio of B and C is (0.1~90): (0.1~90): (0.1~90).
Component A is flazasulfuron in herbicidal composition of the invention, and sulfonylurea herbicide is main to inhibit to generate side chain
Amino acid, leucine, isoleucine and valine predecessor acetolactate synthestase reaction.It is absorbability conduction type weeding
Agent can be weeds cauline leaf and root absorption, then conduct in plant, by the biology for inhibiting side chain amino acid in plant
Synthesis, and cause sensitive plant growth retardation, cauline leaf chlorisis, gradually withered, new life blade chlorisis in 4-5 days under normal circumstances,
Then entire plant is expanded to, weeds are thoroughly dead within 20-30 days.It can be used for preventing and kill off warm-season turf and (be only limitted to Bermuda grass class, knot
The careless class turfgrass of thread) in broadleaved herb, nutgrass flatsedge and gramineae weed, recommending dosage is 12-16 grams/acre, prevents and kill off gramineae weed
With a large amount of recommended amounts, if single remove broadleaf weeds, dosage can be down to 6-8 grams/acre.The optimum period for applying fertilizer of flazasulfuron is large quantities of miscellaneous
Fine earth is uniformly spread fertilizer over the fields when grass seed sprouting, ground moistening and carries out soil closing, can also be less than in 3~4 leaf phase of weeds, plant height
It is spraying to 45 kgs/acre of water (2 watering can of -16 type sprayer of workers and peasants) progress cauline leafs when 10cm.Jin Baixiu has special efficacy, medicine to the rhizome of nutgrass flatsedge
The underground bulb browning of 5~7 days rhizome ofs nutgrass flatsedge afterwards, 10~15 days withered, cannot regenerate, and overcomes other herbicides and prevents and kill off the rhizome of nutgrass flatsedge
Need continuous administration 2 times disadvantages.The product broad weed-killing spectrum can effectively prevent and kill off grass family, Cyperaceae and the broad-leaved of most 3-4 leaf phases
Weeds, it is especially prominent to barnyard grass, herba setariae viridis, tool awns cyperus iria, green amaranth, annual bluegrass, shepherd's purse, benbie, herba stellariae mediae, common vetch preventive effect
Out.Especially there is brilliant effect to the perennial sedge weed such as the rhizome of nutgrass flatsedge, kyllinga brevifolia.
B component is fluroxypyr, 2 first, 4 chlorine, any in azoles humulone, bentazone in combinations of herbicides of the invention
Kind, three kinds of active matters belong to prevent and kill off the herbicide of broadleaf weeds, and control efficiency is prominent, but poor to gramineae weed.
C ingredient is any one of rimsulfuron, nicosulfuron, sulfonylurea herbicide in herbicidal composition of the invention
Agent, branched-chain amino acid synthetic inhibitor, selective post-emergence herbicide.Rimsulfuron controlling object are as follows: annual or perennial standing grain
Undergraduate course and broadleaf weeds, such as creeping thistle, iron shepherd's purse, the rhizome of nutgrass flatsedge, curled dock, johnson grass, wild avena sativa, Digitaria ischaemum (Schreib.) Schreib. Ex Mubl, barnyard grass, more
Flower rye grass, piemarker, Amaranthus retroflexus, clearvers, corn poppy, herba stellariae mediae.Nicosulfuron controlling object are as follows: prevent and kill off annual and perennial
Gramineae weed, part broadleaf weeds.Experiments have shown that the weeds strong to Drug Sensitivity have barnyard grass, herba setariae viridis, wild avena sativa, anti-branch
Amaranth；The medium weeds of sensibility have Ben's knotweed, rule grass, purslane, Monochoria vaginalis, Siberian cocklebur and piemarker, nutgrass flatsedge；Poor miscellaneous of sensibility
Grass mainly has Chenopodiaceae, black nightshade, Commelina communis, summer cypress and weasel hemp nettle.
Each active constituent is due to composition, structure, the difference of physicochemical property after different herbicidal activity component mixing, so that respectively
Synergy between active constituent is usually expressed as synergistic effect, summation action or antagonism.So-called synergistic effect is exactly
Effect is cooperated between different material, the effect generated is greater than the sum total of each ingredient effect；And summation action is exactly it
The effect of generation is equal to the sum total of each ingredient effect；Antagonism refers to that two kinds of material effects when living organism, produce
The phenomenon that a kind of substance interferes the effect of another substance, or the effect of interfering with an opponent each other, declines general effect.
It is an unexpected discovery of the invention that the different three classes herbicidal compounds A of the mechanism of action, compound B, compound C are pressed
It is compounded according to ratio of the present invention, there is significantly synergistic effect.The present invention is evaluated referring to co-toxicity coefficient method, wherein poison system altogether
Number>120 is synergistic effect, and co-toxicity coefficient is expressed as summation action between 80~120, and co-toxicity coefficient<80 are expressed as antagonism work
With.Experimental result confirms, co-toxicity coefficient > 120 after three kinds of different activities components compoundings in herbicidal composition provided by the invention,
With significantly synergistic effect, the multiple actions such as herbicidal composition provided by the invention has interior suction, closes, tags can be made
For the use of warming-up turf weed foliar herbicide.Experimental result is also shown that herbicidal composition provided by the invention can be effective
Warm season grassplot (Bermuda grass, manilagrass lawn) various weeds, broad weed-killing spectrum are prevented and kill off, economic benefits and social benefits are closed down in grain width with double, are pacified to lawn
Entirely, it can be effectively reduced Pesticide use amount, save recruitment cost.
Preferably, the weight ratio of A, B and C are (1~40): (1~60): (1~20).
Preferably, the weight ratio of A, B and C are (1~25): (1~60): (1~25).
Preferably, the weight ratio of A, B and C are (1~20): (1~30): (1~20).
Preferably, the weight ratio of A, B and C are (1~30): (1~60): (1~30).
Preferably, the weight ratio of A, B and C are (1~30): (1~50): (1~30).
In specific embodiment provided by the invention, the weight ratio of A, B and C are 1:1:1,5:55:15,30:9:15,10:
30:5、8:20:6、18:50:20、25:45:10、10:3:20、25:7:12、30:8.4:14.4、6:30:1、15:50:9、1:
15:25,1.2:18:30,7:60:2,25:30:10,15:20:25 or 18:24:30.
In a specific embodiment, the weight ratio of flazasulfuron, fluroxypyr and rimsulfuron is 1:1:1.
In another specific embodiment, the weight ratio 5:55:15 of flazasulfuron, fluroxypyr and rimsulfuron.
In another specific embodiment, the weight ratio 20:6:10 of flazasulfuron, fluroxypyr and rimsulfuron.
In another specific embodiment, the weight ratio 10:30:5 of flazasulfuron, fluroxypyr and nicosulfuron.
In another specific embodiment, the weight ratio 5:55:15 of flazasulfuron, fluroxypyr and nicosulfuron.
In another specific embodiment, the weight ratio of flazasulfuron, fluroxypyr and nicosulfuron is 30:9:
15。
In another specific embodiment, the weight ratio of flazasulfuron, 2 first, 4 chlorine and rimsulfuron is 8:20:6.
In another specific embodiment, the weight ratio of flazasulfuron, 2 first, 4 chlorine and rimsulfuron is 18:50:20.
In another specific embodiment, the weight ratio of flazasulfuron, 2 first, 4 chlorine and rimsulfuron is 25:45:10.
In another specific embodiment, the weight ratio of flazasulfuron, 2 first, 4 chlorine and nicosulfuron is 8:20:6.
In another specific embodiment, the weight ratio of flazasulfuron, 2 first, 4 chlorine and nicosulfuron is 18:50:20.
In another specific embodiment, the weight ratio of flazasulfuron, 2 first, 4 chlorine and nicosulfuron is 25:45:10.
In another specific embodiment, the weight ratio of flazasulfuron, azoles humulone and rimsulfuron is 1:1:1.
In another specific embodiment, the weight ratio of flazasulfuron, azoles humulone and rimsulfuron is 10:3:20.
In another specific embodiment, the weight ratio of flazasulfuron, azoles humulone and rimsulfuron is 30:8.4:14.4.
In another specific embodiment, the weight ratio of flazasulfuron, azoles humulone and nicosulfuron is 1:1:1.
In another specific embodiment, the weight ratio of flazasulfuron, azoles humulone and nicosulfuron is 10:3:20.
In another specific embodiment, the weight ratio of flazasulfuron, azoles humulone and nicosulfuron is 25:7:12.
In another specific embodiment, the weight ratio of flazasulfuron, bentazone and rimsulfuron is 6:30:1.
In another specific embodiment, the weight ratio of flazasulfuron, bentazone and rimsulfuron is 15:50:9.
In another specific embodiment, the weight ratio of flazasulfuron, bentazone and rimsulfuron is 1.2:18:30.
In another specific embodiment, the weight ratio of flazasulfuron, bentazone and nicosulfuron is 6:30:1.
In another specific embodiment, the weight ratio of flazasulfuron, bentazone and nicosulfuron is 15:50:9.
In another specific embodiment, the weight ratio of flazasulfuron, bentazone and nicosulfuron is 1:15:25.
In another specific embodiment, the weight ratio of flazasulfuron, chlorine acyl grass phosphine and rimsulfuron is 7:60:2.
In another specific embodiment, the weight ratio of flazasulfuron, chlorine acyl grass phosphine and rimsulfuron is 25:30:10.
In another specific embodiment, the weight ratio of flazasulfuron, chlorine acyl grass phosphine and rimsulfuron is 15:20:25.
In another specific embodiment, the weight ratio of flazasulfuron, chlorine acyl grass phosphine and nicosulfuron is 7:60:2.
In another specific embodiment, the weight ratio of flazasulfuron, chlorine acyl grass phosphine and nicosulfuron is 25:30:10.
In another specific embodiment, the weight ratio of flazasulfuron, chlorine acyl grass phosphine and nicosulfuron is 18:24:30.
The present invention also provides the Herbicidal combinations in the prevention and treatment gramineae weed of warm season grassplot, broadleaf weeds and perennial
Application in weeds.
Preferably, warm dosage form lawn is manilagrass lawn, bermuda grass turf.
The present invention also provides acceptable auxiliary materials on a kind of herbicide, including above-mentioned Herbicidal combinations and Pesticide Science.
Preferably, auxiliary material is one of emulsifier, wetting agent, dispersing agent, disintegrating agent, binder, carrier or solvent
Or it is a variety of.
Preferably, wetting agent is anion wetting agent and/or non-ionic wetting agent, anion wetting agent is dodecane
Base sodium sulphate, Negel, fatty alcohol polyglycol ether sulfate, aliphatic alcohol polyethenoxy ether carboxylate or alkylnaphthalene sulphur
One of hydrochlorate is a variety of, and non-ionic wetting agent is fat alcohol polyethylene ether, nonylphenol polyoxyethylene ether, anhydrous sorbitol
One of aliphatic ester polyoxyethylene ether or alkyl naphthalene formaldehyde condensation product are a variety of.
Preferably, dispersing agent is sodium lignin sulfonate, calcium lignosulfonate, Sodium Polyacrylate, di-2-ethylhexylphosphine oxide naphthalene sulfonic acids
Salt, alkyl benzene sulfonate calcium salt, alkylbenzenesulfonate amine salt, sodium methylene bis-naphthalene sulfonate formaldehyde condensation products, polyoxyethylene polyoxypropylene
One of block copolymer, carboxymethyl cellulose, polyvinylpyrrolidone, sodium tripolyphosphate or alkylnaphthalene sulfonate condensation polymer
Or it is a variety of.
Preferably, emulsifier is calcium dodecyl benzene sulfonate, fatty alcohol polyoxyethylene ether, triethanolamine oleate, alkyl
Phenol polyethenoxy ether, agriculture breast 601#, agriculture breast 602#, agriculture breast 1601#, agriculture breast 1602#, cardanol polyoxyethylene ether, 0201B,
One of 0206B, 8206,8205,8209, A600 or a variety of.
Preferably, disintegrating agent is sodium bicarbonate, sodium carbonate, bentonite, urea, ammonium sulfate, glucose, polyethylene ratio are coughed up
One of alkanone, aluminium chloride are a variety of.
Preferably, binder is carboxymethyl cellulose, carboxyethyl cellulose, starch, polyvinylpyrrolidone, polypropylene
One of amide, polyvinyl alcohol 1788, polyethylene glycol 400, Macrogol 600, Macrogol 4000, Macrogol 6000 or
It is a variety of.
Preferably, carrier is kaolin, diatomite, precipitated calcium carbonate, white carbon black, concave convex rod, soluble starch, talcum
Powder, mica powder, urea, amine fertilizer, glucose, maltose, sucrose, citric acid, Anhydrous potassium carbonate, Carbon Dioxide hydrogen potassium, anhydrous sulphur
One of sour sodium, anhydrous sodium bicarbonate, natrium carbonicum calcinatum or anhydrous sodium bicarbonate are a variety of.
Preferably, organic solvent is soybean oil, corn oil, mineral oil (gasoline, diesel oil, machine oil), methyl oleate, diformazan
One of benzene, 150# solvent naphtha, 200# solvent naphtha, cyclohexanone, methanol, ethyl alcohol, n-butanol, DMF, DMSO, sec-Butyl Acetate
Or it is a variety of.
Preferably, weight percent content of the Herbicidal combinations in herbicide is 1%~99%.
Preferably, weight percent content of the Herbicidal combinations in herbicide is 15%~75%.
Preferably, weight percent content of the Herbicidal combinations in herbicide is 18%~71%.
Preferably, the dosage form of herbicide is dispersible oil-suspending agent, wettable powder or water dispersible granules.
Preferably, the dosage form of herbicide is dispersible oil-suspending agent, auxiliary material includes wetting agent, dispersing agent, emulsifier, increasing
Thick dose and organic solvent；
In parts by weight, the ratio of each ingredient in oil-suspending agent can be dispersed in herbicide are as follows: and 10~80 parts of Herbicidal combinations, profit
0.5~5 part of humectant, 1~5 part of dispersing agent, 1~15 part of emulsifier, 0.2~5 part of thickener, organic solvent complements to 100 parts；
In the Herbicidal combinations of dispersible oil-suspending agent, the weight ratio of A, B and C are (1~30): (1~30): (1~30).
Preferably, the dosage form of herbicide is wettable powder, auxiliary material includes wetting agent, dispersing agent, emulsifier and carrier；
In parts by weight, in herbicide wettable powder each ingredient ratio are as follows: 10~90 parts of Herbicidal combinations, wetting agent
0.5~10 part, 1~15 part of dispersing agent, 1~15 part of emulsifier, carrier complements to 100 parts；
In the Herbicidal combinations of wettable powder, the weight ratio of A, B and C are (1~50): (1~60): (1~50).
Preferably, the dosage form of herbicide is water dispersible granules, auxiliary material includes wetting agent, dispersing agent, emulsifier, disintegrating agent
And carrier；
In parts by weight, in herbicide water dispersible granule each ingredient ratio are as follows: 10~90 parts of Herbicidal combinations, wetting agent
1~5 part, 1~10 part of dispersing agent, 1~15 part of emulsifier, 1~20 part of disintegrating agent, carrier complements to 100 parts；
In the Herbicidal combinations of water dispersible granules, the weight ratio of A, B and C are (1~45): (1~45): (1~45).
The present invention provides a kind of Herbicidal combinations and warm season grassplot herbicides specials.The Herbicidal combinations are by A, B and C tri-
Kind effective component composition；Wherein, A is flazasulfuron；B is fluroxypyr, 2 first, 4 chlorine, any in azoles humulone, bentazone
Kind；C is any one of rimsulfuron, nicosulfuron；A, the weight ratio of B and C is (0.1~90): (0.1~90): (0.1~
90).The technical effect that the present invention has are as follows:
The different role mechanism of compound A, compound B, compound C three classes herbicide is dexterously utilized in the present invention, will
Three compounds, co-toxicity coefficient > 120 of the Herbicidal combinations, is synergistic effect, can be used as warm season grassplot weeds stalk leaf weedicide
It is used with closing herbicide；
Co-toxicity coefficient after herbicidal composition provided by the invention compounds three kinds of different activities components according to special ratios >
120, show significantly synergistic effect.The control efficiency of the Herbicidal combinations is good, quick, and dead grass thoroughly, can effectively be prevented
The various grass family of warm season grassplot (especially Bermuda grass, manilagrass lawn), broadleaf weeds and resistant weed are controlled, of the invention removes
Careless agent combination is mainly used for the control of weeds of warm season grassplot, and herbicidal effect is prominent, grain width with double, have tag, interior suction, closing etc.
A variety of effects advantageously reduce Pesticide use amount using the herbicide, delay herbicide resistance, highly-safe.
Specific embodiment
The invention discloses a kind of Herbicidal combinations and warm season grassplot herbicide, those skilled in the art can be used for reference herein
Content is suitably modified realization of process parameters.In particular, it should be pointed out that all similar substitutions and modifications are to those skilled in the art
It is it will be apparent that they are considered as being included in the present invention for member.Method and application of the invention has passed through preferably real
Example is applied to be described, related personnel obviously can not depart from the content of present invention, in spirit and scope to method described herein
It is modified or appropriate changes and combinations with application, carrys out implementation and application the technology of the present invention.
Raw materials used medicine or auxiliary material can be purchased by market in Herbicidal combinations and warm season grassplot herbicide provided by the invention
?.
Below with reference to embodiment, the present invention is further explained:
The measurement of 1 co-toxicity coefficient of embodiment
In order to be better understood by the synergy and effect of herbicidal composition of the invention to weeds, pass through following methods
It is detected, specific as follows:
Co-toxicity coefficient method is used to evaluate the synergistic effect of herbicidal composition and its pharmaceutical preparation provided by the invention: with medicine
The natural logrithm and medicament of agent concentration (X) ask recurrence to the growth inhibition percent or fresh weight suppression percentage (Y) of target weeds
Equation, and medicament is calculated to the EC50 value or EC90 value of weeds, then acquire co-toxicity coefficient.It is evaluated and is compounded with co-toxicity coefficient
Medicament is expressed as synergistic effect to the synergy effects of weeds, co-toxicity coefficient > 120, and co-toxicity coefficient indicates between 80~120
For summation action, co-toxicity coefficient < 80 are expressed as antagonism.Co-toxicity coefficient is measured by indoor pot.
The co-toxicity coefficient calculation formula used in the present embodiment is as follows:
(EC mixes × P to co-toxicity coefficient (CTC)=100/A/ECA+ EC mixes × PB/ECB+ EC mixes × PC/ECC)
In formula: the EC50 value (to three-coloured amaranth and herba eleusines indicae, similarly hereinafter) that EC mixes as mixture；PAFor flazasulfuron in mixed shared weight
Amount ratio；PBFor fluroxypyr (or 2 first, the 4 chlorine or azoles humulone or bentazone or chlorine acyl grass phosphine) institute in mixture effective component
Account for weight ratio, PCFor rimsulfuron (or nicosulfuron) in mixture effective component shared weight ratio；ECAFor flazasulfuron
EC50 value；ECBFor the EC50 value of fluroxypyr (or 2 first, 4 chlorine or azoles humulone or bentazone or chlorine acyl grass phosphine), ECCFor sulfone
The EC50 value of Sulfometuron Methyl (or nicosulfuron)；Each group of other EC50 value and co-toxicity coefficient are shown in Table 1.
The EC50 value and co-toxicity coefficient table of 1 different ratio ABC composition of table
The experimental result from table 1 as it can be seen that tri- kinds of effective components of A, B and C according to (1~25): (1~60): the ratio of (1~25)
After example compounding, co-toxicity coefficient illustrates that tri- kinds of effective components of A, B, C after compounding, produce apparent synergy all far more than 120
Effect.
2~31 Herbicidal combinations preparation of embodiment
(1) oil-suspending agent can be dispersed
Dispersible oil-suspending agent formula is shown in Table 2~3.
Oil-suspending agent formula (unit: kg) can be dispersed in table 2
Oil-suspending agent formula (unit: kg) can be dispersed in table 3
Dispersible oil suspends the preparation method comprises the following steps: uniformly by above-mentioned raw materials mixing, shearing, being ground to D (90) less than 5 μm, i.e.,
Obtain the dispersible oil-suspending agent of corresponding embodiment.
(2) wettable powder
Wettable powder agent prescription is shown in Table 4~5.
4 wettable powder agent prescription of table (unit: kg)
5 wettable powder agent prescription of table (unit: kg)
Wettable powder is the preparation method comprises the following steps: above-mentioned raw materials are uniformly mixed, and (smashing fineness is greater than 600 after air-flow crushing
Mesh) to get the wettable powder of corresponding embodiment.
(3) water dispersion granule
Water dispersible granular agent prescription is shown in Table 6~7.
6 water dispersible granular agent prescription of table (unit: kg)
7 water dispersible granular agent prescription of table (unit: kg)
Water dispersion granule is the preparation method comprises the following steps: above-mentioned raw materials are uniformly mixed, and (fineness is greater than 1000 after air-flow crushing
Mesh) it obtains wettable powder, 10-20kg water is added to be uniformly mixed, extrusion granulation, drying are sieved up to corresponding water dispersible granules.
32 pharmacodynamic test of embodiment
The herbicide that above-described embodiment 2~31 obtains detects the synergy effect of weeds below, specifically such as
Under:
The herbicidal composition that Example 2~31 obtains is tested, and experiment place is Henan Xuchang,.Test is selected
It selects and is carried out in local warm season grassplot planting base, each group handles 4 repetitions, and processing area is 20m2；And respectively with
25% flazasulfuron water dispersible granules, 200g/L fluroxypyr missible oil, the solvable pulvis of 56%2 first, 4 chlorine sodium, 10% azoles humulone
Wettable powder, 480g/L bentazone, 30% chlorine acyl grass phosphine, 25% rimsulfuron, 40g/L nicosulfuron oil-suspending agent are control
Group 1, control group 2, control group 3, control group 4, control group 5, control group 6, control group 7, control group 8 compare test.According to
Area is tested, the good various medicaments of precise carry out cauline leaf process and are sprayed, and 30 days statistics preventive effects are as a result, more various medicines after medicine
The activity of weeding of agent.Test process, formulation rate and preventive effect the results are shown in Table 8.
Preventive effect calculation formula are as follows:
Strain/check plot weeds strain number × 100 preventive effect (%)=(check plot weeds strain number-treatment region weeds strain number)
The preventive effect result of 8 weeds cauline leaf process of table
The experimental result from table 8 is it is found that with A flazasulfuron, B fluroxypyr (or 2 first, 4 chlorine or azoles humulone or weed eradication
Pine or chlorine acyl grass phosphine), C rimsulfuron (or nicosulfuron) single dose compare, A, B and C compounding after gained herbicidal composition and its
The herbicidal effect of pharmaceutical preparation will be apparently higher than any one single dose in three components, and significant difference (P < 0.05) produces increasing
Effect effect, expands degrass spectrum.Herbicidal combinations provided in an embodiment of the present invention act on the preventive effect effect of warming-up turf weed
Also have and significantly improve, significant difference (P < 0.05).
In conclusion herbicidal composition provided by the invention has reached synergistic effect, has expanded after A, B and C compounding
Degrass spectrum, the confrontation stronger weeds of pharmacological property can also effectively prevent, and without generating phytotoxicity, can be used for preventing and treating the miscellaneous of warm season grassplot
Grass, it is especially preferable to Bermuda grass and manilagrass lawn herbicidal effect.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of Herbicidal combinations, which is characterized in that be made of tri- kinds of effective components of A, B and C；Wherein, A is flazasulfuron；B is
Fluroxypyr or the different monooctyl ester of fluroxypyr, 2 first, 4 chlorine or its sodium salt or its different monooctyl ester, azoles humulone, bentazone, chlorine acyl
Any one of careless phosphine；C is any one of rimsulfuron, nicosulfuron；
A, the weight ratio of B and C is (0.1~90): (0.1~90): (0.1~90).
2. Herbicidal combinations according to claim 1, which is characterized in that the weight ratio of A, B and C are (1~30): (1~
60): (1~30).
3. gramineae weed and/or broadleaf weeds of the Herbicidal combinations according to claim 1 or claim 2 in prevention and treatment warm-season turf
In application.
4. application according to claim 3, which is characterized in that the warm-season turf is manilagrass lawn and bermudagrass grass
Level ground.
5. application according to claim 3, which is characterized in that the gramineae weed is barnyard grass or herba digitariae, the broad-leaved
Weeds are three-coloured amaranth or purslane.
6. a kind of herbicide, which is characterized in that including that can be connect in Herbicidal combinations as claimed in claim 1 or 2 and Pesticide Science
The auxiliary material received.
7. herbicide according to claim 6, which is characterized in that the dosage form of the herbicide be dispersible oil-suspending agent,
Wettable powder or water dispersible granules.
8. herbicide according to claim 6, which is characterized in that the dosage form of the herbicide is dispersible oil-suspending agent,
The auxiliary material includes wetting agent, dispersing agent, emulsifier, thickener and organic solvent；
In parts by weight, the ratio of each ingredient in oil-suspending agent can be dispersed in the herbicide are as follows: and 10~80 parts of Herbicidal combinations, profit
0.5~5 part of humectant, 1~5 part of dispersing agent, 1~15 part of emulsifier, 0.2~5 part of thickener, organic solvent complements to 100 parts；
In the Herbicidal combinations of dispersible oil-suspending agent, the weight ratio of A, B and C are (1~30): (1~30): (1~20).
9. herbicide according to claim 6, which is characterized in that the dosage form of the herbicide is wettable powder, described
Auxiliary material includes wetting agent, dispersing agent, emulsifier and carrier；
In parts by weight, in herbicide wettable powder each ingredient ratio are as follows: 10~90 parts of Herbicidal combinations, wetting agent 0.5
~10 parts, 1~15 part of dispersing agent, 1~15 part of emulsifier, carrier complements to 100 parts；
In the Herbicidal combinations of wettable powder, the weight ratio of A, B and C are (1~50): (1~60): (1~50).
10. herbicide according to claim 6, which is characterized in that the dosage form of the herbicide is water dispersible granules, described
Auxiliary material includes wetting agent, dispersing agent, emulsifier, disintegrating agent and carrier；
In parts by weight, in herbicide water dispersible granule each ingredient ratio are as follows: 10~90 parts of Herbicidal combinations, wetting agent 1~5
Part, 1~10 part of dispersing agent, 1~15 part of emulsifier, 1~20 part of disintegrating agent, carrier complements to 100 parts；
In the Herbicidal combinations of water dispersible granules, the weight ratio of A, B and C are (1~45): (1~50): (1~45).
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Application publication date: 20190528 |