CN115380911A - Mikania micrantha herbicide and preparation method and application thereof - Google Patents
Mikania micrantha herbicide and preparation method and application thereof Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/88—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms six-membered rings with three ring hetero atoms
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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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
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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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P13/00—Herbicides; Algicides
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/40—Monitoring or fighting invasive species
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Abstract
The invention relates to a mikania micrantha herbicide as well as a preparation method and application thereof, belonging to the technical field of forestry. The mikania micrantha herbicide provided by the invention comprises a main agent and an auxiliary agent, wherein the main agent is bentazone and flazasulfuron, and the mass ratio of the bentazone to the flazasulfuron is (30-40): (6-10). The mikania micrantha herbicide provided by the invention is prepared by compounding bentazone and flazasulfuron, so that photosynthesis of mikania micrantha is hindered, reaction of an amino acid precursor acetolactate synthase is cut off, and auxiliary agents such as an adhesive, an emulsifier, a dispersant, a wetting agent, an organic silicon spreader and the like with strong effects are added in proper proportion, so that the adhesive force of a main agent on mikania micrantha is enhanced, the drug aging and drug effect are improved, all parts of the ground and underground of mikania micrantha die and do not revive, and the prevention and treatment effect of the mikania micrantha is good.
Description
Technical Field
The invention belongs to the technical field of forestry, and particularly relates to a mikania micrantha herbicide as well as a preparation method and application thereof.
Background
Mikania micrantha is one of the most harmful invasive species in China, and can wind or even cover the whole plant, so that the plant growth is limited, withered or even dead. However, because the original mikania micrantha in central and south america has no natural enemies in asia, and has strong reproduction, propagation and survival capacities, the prevention and the treatment of the mikania micrantha are always the technical difficulties in forestry.
In view of the fact that mikania micrantha is high in harmfulness, high in spreading speed and high in prevention and control difficulty, researchers develop a large amount of research on mikania micrantha prevention and control, and develop a large amount of mikania micrantha prevention and control technologies, methods and medicaments. The main prevention and control means is physical prevention and control of pulling out by mechanical or manual means; the method is characterized by comprising the following steps of (1) utilizing specific plants such as dendrocalamus latiflorus, cedar, bauhinia micrantha and the like to quickly occupy ecological niche tissue mikania micrantha for growth prevention and treatment; biological control of preventing flowering and seed formation and reproduction of mikania micrantha by using exogenous hormones such as gibberellin and forchlorfenuron hormones; chemical prevention and control of generated mikania micrantha are killed by using single or compound medicaments such as glyphosate, senetryn, atrazine and the like; in addition, a comprehensive control method which utilizes specific seedlings to occupy ecological niches, utilizes films and the like to establish physical barrier zones and is matched with chemical control methods and the like is also provided.
The traditional prevention and control means has certain disadvantages, such as that the plant prevention and control and the comprehensive prevention and control have certain limitation on seedling material selection, specific plants occupying ecological niches occupy a large amount of forest land resources, the economic output of the forest land is blocked, and the comprehensive prevention and control operation is complex and is not beneficial to popularization; in biological control, the action effect of exogenous hormones is not obvious, the seed formation probability can be reduced or the growth of the seeds can be hindered, but mikania micrantha plants cannot be killed, the asexual reproduction capability of the mikania micrantha is strong, and the biological control cannot achieve the expected effect; the chemical control is widely applied to mikania micrantha control due to simple operation and quick response, and the common medicaments such as glyphosate, senazin, atrazine, sulfometuron-methyl, 2,4-D or a compound agent thereof have obvious killing effect on mikania micrantha but can not completely kill the whole mikania micrantha; even if the biological herbicide is used, aromatic hydrocarbon solvents such as benzene, xylene and naphthalene, and even secretory or ketone synthetic solvents such as isophorone, pyrrolidone, acetonitrile and trichloroethane are used, the solvents are extremely harmful to human, animals and plants and the environment, and the active ingredients of various chemical agents influence seedlings and even cause seedling deformity, so that the economic value of the seedlings is reduced, and the method is not suitable for preventing and controlling mikania micrantha in nursery lands.
Therefore, the preparation of the mikania micrantha herbicide which can kill the whole mikania micrantha plant and protect the nursery stock from being damaged is a technical problem which needs to be solved urgently at present.
Disclosure of Invention
The invention aims to provide a mikania micrantha control agent, a preparation method and application thereof, aiming at the problems in the prior art.
The invention is realized by the following technical scheme:
the invention provides a mikania micrantha herbicide, which comprises a main agent, an auxiliary agent and a solvent, wherein the main agent is bentazone and flazasulfuron, and the mass ratio of the bentazone to the flazasulfuron is (30-40): (6-10).
The mikania micrantha herbicide provided by the invention is prepared by compounding bentazone and flazasulfuron, so that the photosynthesis of mikania micrantha can be hindered, the reaction of an amino acid precursor acetolactate synthase can be cut off, mikania micrantha is killed in a multi-way combined mode, the overground and underground parts of mikania micrantha are dead and not reactivated, and the mikania micrantha control effect is good.
As a preferred embodiment of the mikania micrantha herbicide of the present invention, the solvent includes ethylene glycol, acetone and soybean oil; the auxiliary agent is at least one of adhesive, emulsifier, dispersant, wetting agent, organosilicon spreader, defoamer and filler.
Preferably, the adjuvants include stickers, emulsifiers, dispersants, wetting agents, silicone spreaders, and defoamers.
As a preferred embodiment of the mikania micrantha control agent of the present invention, the mikania micrantha control agent comprises, by mass: 30-40% of bentazone, 6-10% of flazasulfuron, 3-4% of adhesive, 1.5-2% of emulsifier, 1.5-2% of dispersant, 1.5-2% of wetting agent, 1.0-1.5% of organosilicon spreader, 1-1.5% of defoaming agent and 37-54.5% of solvent.
In a preferred embodiment of the mikania micrantha control agent of the present invention, the solvent is composed of ethylene glycol, acetone, and soybean oil in a mass ratio of (2 to 4) to (1 to 3).
Preferably, the solvent consists of ethylene glycol, acetone and soybean oil in a mass ratio of 2. The solvent is a mixture of glycol, acetone and soybean oil, the main agents bentazone and flazasulfuron in the mixture have better solubility, and the proportion among the glycol, the acetone and the soybean oil is further optimized, so that the solubility of the main agent in the control agent is optimal, and the control effect is better.
As a preferred embodiment of the mikania micrantha herbicide according to the present invention, the adhesive is at least one of methyl oleate, epoxidized soybean oil, methyl laurate, methyl linoleate, methyl cocoate, methyl ethylated vegetable oil, and epoxidized rapeseed oil; the emulsifier is at least one of alkylphenol polyoxyethylene, phenethyl phenol polyoxyethylene, fatty alcohol polyoxyethylene, phenethyl phenol polyoxyethylene and phenethyl phenol polyoxypropylene; the dispersant is at least one of polyacrylate, alkyl aryl sulfonate formaldehyde condensate, lignosulfonate, alkylphenol polyoxyethylene ether formaldehyde condensate and sulfate.
Preferably, the adhesive is a mixture of methyl oleate, epoxidized soybean oil, methyl ethyl vegetable oil.
Preferably, the emulsifier is alkylphenol ethoxylates.
Preferably, the dispersant is a polyacrylate; more preferably, the dispersant is sodium polyacrylate.
As a preferable embodiment of the mikania micrantha herbicide of the present invention, the wetting agent is at least one of sodium alkylnaphthalene sulfonate, alkylphenol polyoxyethylene ether sulfate, sodium lauryl ether sulfate, dioctyl sodium sulfosuccinate, sodium dodecylbenzene sulfonate, alkylphenol polyoxyethylene ether, alkali metal salt of alkylbenzene sulfonate, and amine salt of alkylbenzene sulfonate; the organic silicon spreader is at least one of polyether modified trisiloxane, ethoxy modified trisiloxane, polyether modified polydimethylsiloxane and polyether modified polysiloxane.
Preferably, the wetting agent is dioctyl sodium sulfosuccinate; more preferably, the wetting agent is sodium dialkyl succinate.
Preferably, the silicone spreader is a polyether modified trisiloxane.
As a preferred embodiment of the mikania micrantha herbicide of the present invention, the antifoaming agent is at least one of a starch, a mineral oil, an alcohol, a fatty acid ester, an amide, a phosphate ester, a silicone, a polyether, and a polyether-modified polysiloxane antifoaming agent; the filler is at least one of argil, kaolin, diatomite, talcum powder, activated clay and bentonite.
Preferably, the antifoaming agent is starch.
The invention also aims to provide a preparation method of the mikania micrantha herbicide, which is obtained by uniformly mixing the components according to the proportion.
The invention also aims to provide application of the mikania micrantha control agent in mikania micrantha control.
As a preferred embodiment of the use of the mikania micrantha herbicide in mikania micrantha control according to the present invention, the control is performed by any one of the following methods:
a. diluting 400-500 times of mikania micrantha herbicide as defined in any one of claims 1-7, uniformly spraying onto the surface of soil to be controlled before germination of mikania micrantha, wherein the spraying dosage is 125-150 g/667 m 2 ；
b. Diluting 300-400 times of mikania micrantha herbicide as defined in any one of claims 1-7, uniformly spraying onto stems and leaves of mikania micrantha after germination of the mikania micrantha, wherein the spraying dosage is 150-200 g per 667m 2 。
Preferably, the mikania micrantha control agent can be prepared into any one dosage form of pesticides, including but not limited to wettable powder, water dispersible granules, soluble powder, soluble granules, aqueous solution, aqueous emulsion and microemulsion.
Preferably, the mikania micrantha spray is repeatedly sprayed for 2-3 times at dense places, and the spray is supplemented to spray for 1-2 times in rainy water weather within three days.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention utilizes the compounding of bentazone and flazasulfuron, which not only hinders the photosynthesis of mikania micrantha, but also cuts off the reaction of amino acid precursor acetolactate synthase, and kills mikania micrantha by multi-means combination, so that the overground and underground parts of mikania micrantha are completely dead and not revived.
(2) The invention can increase the adhesive force of the main agent on mikania micrantha, the rain wash resistance and improve the drug aging and drug effect by adding the auxiliary agents with stronger efficacy, such as the adhesive, the emulsifier, the dispersant, the wetting agent, the organic silicon spreader and the like in proper proportion.
(3) The invention adopts the glycol, the acetone and the soybean oil as the solvents, not only solves the problem that the bentazone is difficult to dissolve in water, but also avoids using hydrocarbons and reduces the use of ketone solvents, thereby reducing pollution and being beneficial to protecting the environment.
(4) The mikania micrantha herbicide disclosed by the invention has no influence on germination and growth of other nursery stock stem types and branches and leaves, and has a nursery stock protection characteristic.
(5) The mikania micrantha herbicide disclosed by the invention can be used for killing mikania micrantha after germination and treating soil before germination, so that propagation and spread of mikania micrantha are inhibited, a preventing and killing effect is realized on the whole life cycle of mikania micrantha, and the application range is wide.
(6) The formula of the invention has wide raw material source, simple operation and less dosage, and reduces the spraying cost.
Drawings
FIG. 1 is a view showing the growth state of mikania micrantha when the mikania micrantha herbicide of example 1 is not applied;
FIG. 2 shows the growth state of mikania micrantha at 14 days after the application of the mikania micrantha herbicide of example 1;
FIG. 3 shows the growth state of mikania micrantha when the mikania micrantha herbicide of example 1 was applied for 28 days;
FIG. 4 shows the growth state of mikania micrantha at 3 months after the application of the mikania micrantha herbicide of example 1.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific examples. It will be understood by those skilled in the art that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The test methods used in the examples are all conventional methods unless otherwise specified; the materials, reagents and the like used are commercially available unless otherwise specified.
Example 1
A mikania micrantha herbicide comprises the following components in percentage by mass: 40% of bentazone, 10% of flazasulfuron, 1% of methyl oleate, 2% of epoxidized soybean oil, 1% of methyl-combined ethylated vegetable oil, 1.5% of alkylphenol polyoxyethylene ether, 1.5% of sodium polyacrylate, 1.5% of dialkyl succinate sodium sulfonate, 1.5% of polyether modified trisiloxane, 1% of starch and 39% of a mixed solvent of ethylene glycol, acetone and soybean oil with the mass ratio of 2. And mixing and stirring the components according to the mass percent to obtain the mikania micrantha herbicide.
170g of mikania micrantha herbicide is diluted by water 350 times of that of the mikania micrantha herbicide in 2021, 10 and 19 days and evenly sprayed on leaf surfaces and stems of the mikania micrantha in an emg Juntang nursery, and the growth state of the mikania micrantha when the mikania micrantha herbicide is not sprayed is shown in figure 1. The effect of the experiment was observed after spraying for 14 days (fig. 2), 28 days (fig. 3) and 3 months (fig. 4), respectively.
As can be seen in FIGS. 2-4, after the pesticide is sprayed for 14 days, the stem and leaf of mikania micrantha obviously turn yellow, turn black and wither; after 28 days of spraying, the overground part of the mikania micrantha is completely withered; after 3 months of spraying, the original mikania micrantha has no re-green germination sign and no new mikania micrantha seedling in the germination period of the next year; the trunk shape, the growth of branches and leaves and the germination of new branches and leaves in the next year of the nursery stock surrounded by mikania micrantha have no influence.
Example 2
A mikania micrantha herbicide comprises the following components in percentage by mass: 35% of bentazone, 10% of flazasulfuron, 1% of methyl oleate, 2% of epoxidized soybean oil, 1% of methyl-compound ethylated vegetable oil, 1.5% of alkylphenol polyoxyethylene, 1.5% of sodium polyacrylate, 1.5% of dialkyl succinate sodium sulfonate, 1.5% of polyether modified trisiloxane, 1% of starch, and 44% of a mixed solvent of ethylene glycol, acetone and soybean oil, wherein the mass ratio of the mixed solvent is 2. Mixing and stirring the components according to the mass percentage to obtain the mikania micrantha herbicide.
Example 3
A mikania micrantha herbicide comprises the following components in percentage by mass: 40% of bentazone, 6% of flazasulfuron, 1% of methyl oleate, 2% of epoxidized soybean oil, 1% of methyl-combined ethylated vegetable oil, 1.5% of alkylphenol polyoxyethylene ether, 1.5% of sodium polyacrylate, 1.5% of dialkyl succinate sodium sulfonate, 1.5% of polyether modified trisiloxane, 1% of starch and 43% of a mixed solvent of ethylene glycol, acetone and soybean oil with the mass ratio of 2. Mixing and stirring the components according to the mass percentage to obtain the mikania micrantha herbicide.
Example 4
A mikania micrantha herbicide comprises the following components in percentage by mass: 40% of bentazone, 10% of flazasulfuron, 1% of methyl oleate, 2% of epoxidized soybean oil, 1% of methyl-compound ethylated vegetable oil, 1.5% of sodium polyacrylate, 1.5% of sodium dialkyl succinate sulfonate, 1% of starch, and 42% of a mixed solvent of glycol, acetone and soybean oil, wherein the mass ratio of the mixed solvent is 2. And mixing and stirring the components according to the mass percent to obtain the mikania micrantha herbicide.
Comparative example 1
A mikania micrantha herbicide comprises the following components in percentage by mass: 40% of bentazone, 1% of methyl oleate, 2% of epoxidized soybean oil, 1% of methyl-combined ethylated vegetable oil, 1.5% of alkylphenol polyoxyethylene ether, 1.5% of sodium polyacrylate, 1.5% of dialkyl succinate sodium sulfonate, 1.5% of polyether modified trisiloxane, 1% of starch, 39% of glycol, acetone and soybean oil mixed solvent with the mass ratio of 2. Mixing and stirring the components according to the mass percentage to obtain the mikania micrantha herbicide.
Comparative example 2
A mikania micrantha herbicide comprises the following components in percentage by mass: 10% of flazasulfuron, 1% of methyl oleate, 2% of epoxidized soybean oil, 1% of methyl-compound ethylated vegetable oil, 1.5% of alkylphenol polyoxyethylene, 1.5% of sodium polyacrylate, 1.5% of dialkyl succinate sodium sulfonate, 1.5% of polyether modified trisiloxane, 1% of starch, 39% of glycol, acetone and soybean oil mixed solvent with the mass ratio of 2. And mixing and stirring the components according to the mass percent to obtain the mikania micrantha herbicide.
Comparative example 3
A mikania micrantha herbicide comprises the following components in percentage by mass: 40% of bentazone, 10% of sulfometuron-methyl, 1% of methyl oleate, 2% of epoxidized soybean oil, 1% of methyl-combined ethylated vegetable oil, 1.5% of alkylphenol polyoxyethylene, 1.5% of sodium polyacrylate, 1.5% of dialkyl succinate sodium sulfonate, 1.5% of polyether modified trisiloxane, 1% of starch and 39% of a mixed solvent of ethylene glycol, acetone and soybean oil with the mass ratio of 2. Mixing and stirring the components according to the mass percentage to obtain the mikania micrantha herbicide.
Comparative example 4
A mikania micrantha herbicide comprises the following components in percentage by mass: 40% of ametryn, 10% of flazasulfuron, 1% of methyl oleate, 2% of epoxidized soybean oil, 1% of methyl-compound ethylated vegetable oil, 1.5% of alkylphenol polyoxyethylene, 1.5% of sodium polyacrylate, 1.5% of dialkyl succinate sodium sulfonate, 1.5% of polyether modified trisiloxane, 1% of starch, and 39% of a glycol, acetone and soybean oil mixed solvent with the mass ratio of 2. Mixing and stirring the components according to the mass percentage to obtain the mikania micrantha herbicide.
Comparative example 5
A mikania micrantha herbicide comprises the following components in percentage by mass: 20% of bentazone, 10% of flazasulfuron, 1% of methyl oleate, 2% of epoxidized soybean oil, 1% of methyl-combined ethylated vegetable oil, 1.5% of alkylphenol polyoxyethylene ether, 1.5% of sodium polyacrylate, 1.5% of dialkyl succinate sodium sulfonate, 1.5% of polyether modified trisiloxane, 1% of starch, 39% of glycol, acetone and soybean oil mixed solvent and 20% of filler, wherein the mass ratio of the components is 2. Mixing and stirring the components according to the mass percentage to obtain the mikania micrantha herbicide.
Comparative example 6
A mikania micrantha herbicide comprises the following components in percentage by mass: 40% of bentazone, 10% of flazasulfuron, 1% of methyl oleate, 2% of epoxidized soybean oil, 1% of methyl-combined ethylated vegetable oil, 1.5% of alkylphenol polyoxyethylene ether, 1.5% of sodium polyacrylate, 1.5% of dialkyl succinate sodium sulfonate, 1.5% of polyether modified trisiloxane, 1% of starch and 39% of water. Mixing and stirring the components according to the mass percentage to obtain the mikania micrantha herbicide.
The mikania micrantha control agents of examples 2 to 4 and comparative examples 1 to 6 were subjected to a test of mikania micrantha control effect in the same manner as in example 1, and the test effects were observed 14 days, 28 days, and 3 months after spraying, respectively, and the results are shown in table 1 below.
TABLE 1 Mikania micrantha control Agents of examples 1 to 4 and comparative examples 1 to 6 having control effects
As can be seen from Table 1, the mikania micrantha herbicide of examples 1 to 4 of the present invention can kill all mikania micrantha within 3 months without germination of new buds. The preparation method has the advantages that the bentazone and the flazasulfuron are compounded, so that the photosynthesis of the mikania micrantha can be hindered, the reaction of an amino acid precursor acetolactate synthase can be cut off, and the mikania micrantha is jointly killed by multiple means, so that the overground and underground parts of the mikania micrantha are completely dead and cannot revive. And the method can be used for treating soil before germination, inhibiting propagation and spreading of mikania micrantha, preventing and removing mikania micrantha in the whole life cycle, and avoiding new bud germination. The mikania micrantha herbicide in the comparative example 1 is not added with flazasulfuron, the mikania micrantha herbicide in the comparative example 2 is not added with bentazone, the mikania micrantha herbicide in the comparative example 3 is compounded by the bentazone and the sulfometuron-methyl, and the mikania micrantha herbicide in the comparative example 4 is compounded by the ametryn and the flazasulfuron, so that the mikania micrantha herbicide cannot play a remarkable role in controlling mikania micrantha and cannot inhibit the germination of new buds of the mikania micrantha, and the main agent provided by the invention selects the bentazone and the flazasulfuron to have a synergistic effect and a remarkable control effect on the mikania micrantha. The mikania micrantha herbicide in comparative example 5 has too low a bentazone content, and cannot kill mikania micrantha and inhibit new bud germination of mikania micrantha. The mikania micrantha control agent in comparative example 6 uses water as a solvent, so that the components of the control agent cannot be effectively dissolved, and the control effect of mikania micrantha is remarkably reduced. The component proportion of the control agent can effectively control mikania micrantha and inhibit the germination of new buds of mikania micrantha, and the control agent has obvious control effect and wide application range.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A mikania micrantha herbicide is characterized by comprising a main agent, an auxiliary agent and a solvent, wherein the main agent is bentazone and flazasulfuron, and the mass ratio of the bentazone to the flazasulfuron is (30-40): (6-10).
2. The mikania micrantha herbicide as claimed in claim 1, wherein the solvent comprises ethylene glycol, acetone and soybean oil; the auxiliary agent is at least one of adhesive, emulsifier, dispersant, wetting agent, organosilicon spreader, defoamer and filler.
3. The mikania micrantha herbicide according to claim 2, comprising, in terms of mass percent: 30-40% of bentazone, 6-10% of flazasulfuron, 3-4% of adhesive, 1.5-2% of emulsifier, 1.5-2% of dispersant, 1.5-2% of wetting agent, 1.0-1.5% of organosilicon spreader, 1-1.5% of defoaming agent and 37-54.5% of solvent.
4. The mikania micrantha control agent according to claim 1 or 2, wherein the solvent is composed of ethylene glycol, acetone, and soybean oil at a mass ratio of (2-4) to (1-3).
5. The mikania micrantha herbicide according to claim 2, wherein the adhesive is at least one of methyl oleate, epoxidized soybean oil, methyl laurate, methyl linoleate, methyl cocoate, methyl ethylated vegetable oil, and epoxidized rapeseed oil; the emulsifier is at least one of alkylphenol polyoxyethylene, phenethyl phenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, phenethyl phenol polyoxyethylene ether and phenethyl phenol polyoxypropylene ether; the dispersant is at least one of polyacrylate, alkyl aryl sulfonate formaldehyde condensate, lignosulfonate, alkylphenol polyoxyethylene ether formaldehyde condensate and sulfate.
6. The mikania micrantha herbicide according to claim 2, wherein the wetting agent is at least one of sodium alkylnaphthalene sulfonate, alkylphenol ethoxylate sulfate, sodium lauryl ether sulfate, dioctyl sodium sulfosuccinate, sodium dodecylbenzenesulfonate, alkylphenol polyoxyethylene ether, alkali metal salt of alkylbenzene sulfonic acid, amine salt of alkylbenzene sulfonic acid; the organic silicon spreader is at least one of polyether modified trisiloxane, ethoxy modified trisiloxane, polyether modified polydimethylsiloxane and polyether modified polysiloxane.
7. The mikania micrantha herbicide according to claim 2, wherein the antifoaming agent is at least one of a starch, a mineral oil, an alcohol, a fatty acid ester, an amide, a phosphate ester, a silicone, a polyether, and a polyether-modified polysiloxane antifoaming agent; the filler is at least one of argil, kaolin, diatomite, talcum powder, activated clay and bentonite.
8. A method for producing a mikania micrantha herbicide as claimed in any one of claims 1 to 7, characterized in that the preparation is obtained by mixing the components uniformly in a certain ratio.
9. Use of a mikania micrantha herbicide as claimed in any one of claims 1 to 7 for the control of mikania micrantha.
10. Use of a mikania micrantha herbicide according to claim 9 for mikania micrantha control, characterized in that any one of the following methods is used for the control:
a. diluting 400-500 times of mikania micrantha herbicide as claimed in any one of claims 1-7, uniformly spraying onto the surface of soil to be controlled before the germination of mikania micrantha, wherein the spraying dosage is 125-150 g per 667m 2 ；
b. Diluting 300-400 times of mikania micrantha herbicide as defined in any one of claims 1-7, uniformly spraying onto stems and leaves of mikania micrantha after germination of the mikania micrantha, wherein the spraying dosage is 150-200 g per 667m 2 。
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