CN115380911B - Mikania micrantha control agent and preparation method and application thereof - Google Patents

Mikania micrantha control agent and preparation method and application thereof Download PDF

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CN115380911B
CN115380911B CN202211002441.6A CN202211002441A CN115380911B CN 115380911 B CN115380911 B CN 115380911B CN 202211002441 A CN202211002441 A CN 202211002441A CN 115380911 B CN115380911 B CN 115380911B
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mikania micrantha
control agent
agent
mikania
control
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CN115380911A (en
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罗伟聪
高欢欢
刘贵才
董运常
江良为
陈振涛
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Huayuan Landscape Architecture Co ltd
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Huayuan Landscape Architecture Co ltd
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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
    • A01N43/72—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
    • 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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • 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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  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Environmental Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Zoology (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention relates to a mikania micrantha control agent, a preparation method and application thereof, and belongs to the technical field of forestry. The mikania micrantha control agent 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 bentazone to flazasulfuron is (30-40): (6-10). The mikania micrantha control agent provided by the invention utilizes the compounding of bentazone and flazasulfuron to block photosynthesis of mikania micrantha, cuts off the reaction of acetolactate synthase of an amino acid precursor, and adds auxiliary agents with stronger efficacy, such as an adhesive, an emulsifying agent, a dispersing agent, a wetting agent, an organosilicon spreading agent and the like in proper proportion, so that the adhesive force of a main agent on mikania micrantha is enhanced, the medicine aging and the medicine effect are improved, the overground and underground parts of mikania micrantha are all dead, the mikania micrantha is not revived, and the mikania micrantha control effect is good.

Description

Mikania micrantha control agent and preparation method and application thereof
Technical Field
The invention belongs to the technical field of forestry, and particularly relates to a mikania micrantha control agent, a preparation method and application thereof.
Background
Mikania micrantha is one of the most harmful invasive species in China, and can wind and even cover the whole plant, so that the plant is limited in growth, withered and even dead. However, the mikania micrantha is originally produced in central america and south america, has no natural enemies in asia, has strong propagation, transmission and viability, and is a difficult point in the technical field of forestry.
In view of the large harmfulness, high spreading speed and high control difficulty of mikania micrantha, scientific researchers develop a large number of researches on mikania micrantha control, and develop a large number of mikania micrantha control technologies, methods and medicaments. The main prevention means is physical prevention and control by pulling out by mechanical or manual means; the plant control of the mikania micrantha which rapidly occupies the ecological niche tissue for the growth of mikania micrantha by utilizing special plants such as the bamboos, the fir, the leaves Yang Ti A and the like; biological control of preventing flowering, seed formation and propagation of mikania micrantha by using exogenous hormones such as gibberellin, forchlorfenuron hormone and the like; killing chemical control of generated mikania micrantha by using single or compound medicaments such as glyphosate, feverfew, atrazine and the like; in addition, there are also comprehensive control methods of using specific seedlings to occupy ecological niches, using films and the like to establish physical barrier belts in combination with chemical control and other methods.
The traditional prevention and control means have certain drawbacks, such as plant prevention and control and comprehensive prevention and control have certain limitation on seedling selection, and specific plants occupying ecological niches occupy a large amount of woodland resources, so that economic output of woodlands is hindered, and the comprehensive prevention and control operation is complex and is not beneficial to popularization; the exogenous hormone in the biological control has an unobvious effect, can reduce the seed formation probability or prevent the growth of the seeds, but can not kill the mikania micrantha plants, and the mikania micrantha has strong asexual reproduction capability, so that the biological control is difficult to achieve the expected effect; the chemical control is widely applied to the control of mikania micrantha due to simple operation and quick effect, and the common medicaments of glyphosate, feverfew, atrazine, metasulfuron and 2,4-D or a compound agent thereof have obvious killing effect on mikania micrantha, but can not completely kill Gan Juquan plants of mikania micrantha; even biological herbicides also use benzene, xylene, naphthalene and other aromatic hydrocarbon solvents, even isophorone, pyrrolidone, acetonitrile, trichloroethane and other urinary or ketone synthetic solvents, which are extremely harmful to human, animals, plants and the environment, and the effective components of each chemical agent influence the seedlings and even cause the seedlings to be malformed, so that the economic value of the seedlings is reduced, and the biological herbicide is not suitable for preventing and controlling the nursery-ground mikania micrantha.
Therefore, the preparation of the mikania micrantha control agent which can kill the whole mikania micrantha plant and protect the seedlings from damage is a technical problem which needs to be solved at present.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a mikania micrantha control agent, a preparation method and application thereof.
The invention is realized by the following technical scheme:
the invention provides a mikania micrantha control agent, which comprises a main agent, an auxiliary agent and a solvent, wherein the main agent is bentazone and flazasulfuron, and the mass ratio of bentazone to flazasulfuron is (30-40): (6-10).
The mikania micrantha control agent provided by the invention utilizes the combination of bentazone and flazasulfuron, not only can prevent photosynthesis of mikania micrantha, but also can cut off the reaction of amino acid precursor acetolactate synthase, and the mikania micrantha can be killed by multiple means, so that the overground and underground parts of mikania micrantha are all dead and do not revive, and the mikania micrantha control effect is good.
As a preferred embodiment of the mikania micrantha control agent of the present invention, the solvent includes ethylene glycol, acetone, and soybean oil; the auxiliary agent is at least one of an adhesive, an emulsifying agent, a dispersing agent, a wetting agent, an organosilicon spreading agent, a defoaming agent and a filler.
Preferably, the adjuvants include adhesives, 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 to 40 percent of bentazone, 6 to 10 percent of flazasulfuron, 3 to 4 percent of adhesive, 1.5 to 2 percent of emulsifier, 1.5 to 2 percent of dispersant, 1.5 to 2 percent of wetting agent, 1.0 to 1.5 percent of organosilicon spreading agent, 1 to 1.5 percent of defoamer and 37 to 54.5 percent of solvent.
As a preferable embodiment of the mikania micrantha control agent of the invention, the solvent is composed of ethylene glycol, acetone and soybean oil in a mass ratio of (2-4): (1-3).
Preferably, the solvent consists of ethylene glycol, acetone and soybean oil in a mass ratio of 2:1:1. The solvent is a mixture of glycol, acetone and soybean oil, the main agents of bentazone and flazasulfuron in the mixture have better solubility, and the invention further preferably selects the proportion of the glycol, the acetone and the soybean oil, so that the solubility of the main agents in the control agent is optimal, and the control effect is better.
As a preferred embodiment of the mikania micrantha control agent of 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 ethoxylates, phenethyl phenol ethoxylates, fatty alcohol ethoxylates, phenethyl phenol ethoxylates and phenethyl phenol polyoxypropylene ethers; the dispersing agent is at least one of polyacrylate, alkylaryl sulfonate formaldehyde condensate, lignin sulfonate, alkylphenol polyoxyethylene ether formaldehyde condensate and sulfate.
Preferably, the adhesive is a mixture of methyl oleate, epoxidized soybean oil, and methyl-chemically ethylated vegetable oil.
Preferably, the emulsifier is alkylphenol ethoxylates.
Preferably, the dispersant is a polyacrylate; more preferably, the dispersant is sodium polyacrylate.
As a preferred embodiment of the mikania micrantha control agent of the present invention, the wetting agent is at least one of sodium alkyl naphthalene sulfonate, alkylphenol ethoxylate sulfate, sodium lauryl ether sulfate, dioctyl sodium succinate, sodium dodecylbenzene sulfonate, alkylphenol ethoxylate, alkali metal alkylbenzene sulfonate, and amine alkylbenzene sulfonate salt; the organic silicon spreading agent 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 dialkylsuccinate sulfonate.
Preferably, the silicone spreader is a polyether modified trisiloxane.
As a preferred embodiment of the mikania micrantha control agent of the present invention, the antifoaming agent is at least one of starch, mineral oil, alcohol, fatty acid ester, amide, phosphate, silicone, polyether-modified polysiloxane antifoaming agent; the filler is at least one of clay, kaolin, diatomite, talcum powder, activated clay and bentonite.
Preferably, the defoamer is starch.
The invention also aims to provide a preparation method of the mikania micrantha control agent, which is prepared by uniformly mixing the components according to the proportion.
It is still another object of the present invention to provide an application of the mikania micrantha control agent in mikania micrantha control.
As a preferred embodiment of the application of the mikania micrantha control agent of the present invention to mikania micrantha control, the control is performed by any one of the following methods:
a. diluting the mikania micrantha control agent according to any one of claims 1 to 7 400 to 500 times, uniformly spraying the mikania micrantha control agent on the soil surface to be controlled before germination, wherein the sprayed dosage is 125g to 150g per 667m 2 ；
b. Diluting the mikania micrantha control agent according to any one of claims 1 to 7 300 to 400 times, uniformly spraying the mikania micrantha control agent on mikania micrantha stems and leaves after germination, wherein the spraying dosage is 150g to 200g per 667m 2 。
Preferably, the mikania micrantha control agent can be prepared into any dosage form on pesticides, including but not limited to wettable powder, water dispersible granule, soluble powder, soluble granule, water aqua, aqueous emulsion and microemulsion.
Preferably, the spraying is repeatedly performed for 2-3 times at the dense position of the mikania micrantha, and the spraying is performed for 1-2 times in the days of rainwater meeting weather.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention utilizes the compounding of bentazone and flazasulfuron to prevent photosynthesis of mikania micrantha, cut off the reaction of amino acid precursor acetolactate synthase, and kill mikania micrantha by multi-means combination, so that the overground and underground parts of mikania micrantha are all dead and do not revive.
(2) The invention can increase the adhesive force of the main agent on the mikania micrantha, resist rain wash and improve the drug aging and efficacy by adding the auxiliary agents with stronger efficacy, such as the adhesive, the emulsifying agent, the dispersing agent, the wetting agent, the organosilicon spreader and the like in proper proportion.
(3) The invention adopts glycol, acetone and soybean oil as solvents, which not only solves the problem that bentazone is indissolvable in water, but also avoids using hydrocarbons and reduces the use of ketone solvents, thereby reducing pollution and being beneficial to environmental protection.
(4) The mikania micrantha control agent has no influence on the germination and growth of other seedlings, and has the seedling protection characteristic.
(5) The mikania micrantha control agent can be used for killing mikania micrantha after buds and treating soil before buds, inhibits propagation and spreading of mikania micrantha, has control effect on the whole life cycle of mikania micrantha, and has wide application range.
(6) The invention has the advantages of wide sources of raw materials, simple operation, small dosage and reduced spraying cost.
Drawings
FIG. 1 shows the growth state of mikania micrantha without spraying the mikania micrantha control agent of example 1;
FIG. 2 shows the growth state of mikania micrantha when the mikania micrantha control agent of example 1 is sprayed for 14 days;
FIG. 3 shows the growth state of mikania micrantha at 28 days after spraying the mikania micrantha control agent of example 1;
FIG. 4 shows the growth state of mikania micrantha when the mikania micrantha control agent of example 1 was sprayed for 3 months.
Detailed Description
For a better description of the objects, technical solutions and advantages of the present invention, the present invention will be further described with reference to the following specific examples. It will be appreciated by persons skilled in the art that the specific embodiments described herein are for purposes of illustration only and are not intended to be limiting.
The test methods used in the examples are conventional methods unless otherwise specified; the materials, reagents and the like used, unless otherwise specified, are all commercially available.
Example 1
The mikania micrantha control agent 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 alkylphenol ethoxylates, 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 in a mass ratio of 2:1:1. Mixing and stirring according to the mass percentage to obtain the mikania micrantha control agent.
170g of mikania micrantha control agent is taken, diluted with water for 350 times of 2021 for 10 months and 19 days, and uniformly sprayed on leaf surfaces and stems of mikania micrantha pieces formed in an Enping juntang Miao Chang nursery, and the growth state of mikania micrantha when Shi Weigan of the mikania micrantha control agent is not sprayed is shown in figure 1. The experimental effects were observed after 14 days (fig. 2), 28 days (fig. 3) and 3 months (fig. 4) of spraying, respectively.
As can be seen in fig. 2-4, the stems and leaves of mikania micrantha are significantly yellowing, darkening and withering after 14 days of spraying the agent; after 28 days of spraying, all overground parts of the mikania micrantha die; after 3 months of spraying, the original mikania micrantha has no sign of re-green germination and no new mikania micrantha seedlings in the next-year mikania micrantha germination period; the seedling stem shape, branch and leaf growth and new branch and leaf germination of the next year surrounded by mikania micrantha are not affected.
Example 2
The mikania micrantha control agent 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 ethoxylates, 1.5% of sodium polyacrylate, 1.5% of dialkyl succinate sodium sulfonate, 1.5% of polyether modified trisiloxane, 1% of starch and 44% of ethylene glycol, acetone and soybean oil mixed solvent with the mass ratio of 2:1:1. Mixing and stirring according to the mass percentage to obtain the mikania micrantha control agent.
Example 3
The mikania micrantha control agent 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-compound ethylated vegetable oil, 1.5% of alkylphenol ethoxylates, 1.5% of sodium polyacrylate, 1.5% of dialkyl succinate sodium sulfonate, 1.5% of polyether modified trisiloxane, 1% of starch and 43% of ethylene glycol, acetone and soybean oil mixed solvent with the mass ratio of 2:1:1. Mixing and stirring according to the mass percentage to obtain the mikania micrantha control agent.
Example 4
The mikania micrantha control agent 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 dialkyl succinate sodium sulfonate, 1% of starch, and 42% of a mixed solvent of ethylene glycol, acetone and soybean oil in a mass ratio of 2:1:1. Mixing and stirring according to the mass percentage to obtain the mikania micrantha control agent.
Comparative example 1
The mikania micrantha control agent comprises the following components in percentage by mass: 40% of bentazone, 1% of methyl oleate, 2% of epoxidized soybean oil, 1% of methyl-compound ethylated vegetable oil, 1.5% of alkylphenol ethoxylates, 1.5% of sodium polyacrylate, 1.5% of dialkyl succinate sodium sulfonate, 1.5% of polyether modified trisiloxane, 1% of starch, and 39% of ethylene glycol, acetone and soybean oil mixed solvent with a mass ratio of 2:1:1, and 10% of filler. Mixing and stirring according to the mass percentage to obtain the mikania micrantha control agent.
Comparative example 2
The mikania micrantha control agent 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 ethoxylates, 1.5% of sodium polyacrylate, 1.5% of sodium dialkyl succinate sulfonate, 1.5% of polyether modified trisiloxane, 1% of starch, and 39% of ethylene glycol, acetone and soybean oil mixed solvent with a mass ratio of 2:1:1, and 40% of filler. Mixing and stirring according to the mass percentage to obtain the mikania micrantha control agent.
Comparative example 3
The mikania micrantha control agent 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-compound ethylated vegetable oil, 1.5% of alkylphenol ethoxylates, 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 in a mass ratio of 2:1:1. Mixing and stirring according to the mass percentage to obtain the mikania micrantha control agent.
Comparative example 4
The mikania micrantha control agent 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 mixed solvent of ethylene glycol, acetone and soybean oil in a mass ratio of 2:1:1. Mixing and stirring according to the mass percentage to obtain the mikania micrantha control agent.
Comparative example 5
The mikania micrantha control agent 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-compound ethylated vegetable oil, 1.5% of alkylphenol ethoxylates, 1.5% of sodium polyacrylate, 1.5% of dialkyl succinate sodium sulfonate, 1.5% of polyether modified trisiloxane, 1% of starch, 39% of ethylene glycol, acetone and soybean oil mixed solvent with the mass ratio of 2:1:1 and 20% of filler. Mixing and stirring according to the mass percentage to obtain the mikania micrantha control agent.
Comparative example 6
The mikania micrantha control agent 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 alkylphenol ethoxylates, 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 according to the mass percentage to obtain the mikania micrantha control agent.
The mikania control agents of examples 2 to 4 and comparative examples 1 to 6 were subjected to test tests for mikania control effect in the same manner as in example 1, and the test effects were observed after 14 days, 28 days and 3 months after spraying, respectively, and the results are shown in table 1 below.
TABLE 1 control effects of mikania micrantha control agents of examples 1 to 4 and comparative examples 1 to 6
As can be seen from Table 1, the mikania micrantha control agents of examples 1 to 4 of the present invention can completely kill mikania micrantha within 3 months, and no sprouts germinate. The invention is proved to adopt the compounding of bentazone and flazasulfuron, not only can obstruct photosynthesis of mikania micrantha, but also can cut off the reaction of amino acid precursor acetolactate synthase, and the mikania micrantha is killed by multiple means, so that the overground and underground parts of mikania micrantha are all dead and do not revive. And can be used for the pre-emergence soil treatment to inhibit propagation and spreading of mikania micrantha, and has the effects of preventing and removing the whole life cycle of mikania micrantha without sprouting. The mikania micrantha control agent of comparative example 1 is not added with flazasulfuron, the mikania micrantha control agent of comparative example 2 is not added with bentazone, the mikania micrantha control agent of comparative example 3 is compounded by bentazone and metasulfuron, the mikania micrantha control agent of comparative example 4 is compounded by ametryn and flazasulfuron, no obvious control effect can be achieved on mikania micrantha, and germination of mikania micrantha sprouts cannot be inhibited, and the main agent of the invention has synergistic effect by selecting bentazone and flazasulfuron and obvious control effect on mikania micrantha. The comparative example 5 has too low a content of bentazone in the control agent for mikania micrantha, and thus, mikania micrantha cannot be killed, and mikania micrantha sprouts cannot be inhibited. The mikania micrantha control agent of comparative example 6 uses water as a solvent, and cannot effectively dissolve the control agent components, and the mikania micrantha control effect is remarkably reduced. Further shows that the component proportion of the control agent can effectively control mikania micrantha, inhibit mikania micrantha buds from sprouting, and has obvious control effect and wide application range.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted equally without departing from the spirit and scope of the technical solution of the present invention.

Claims (4)

1. The mikania micrantha control agent is characterized by comprising the following components in percentage by mass: 35-40% of bentazone, 6-10% of flazasulfuron, 1% of methyl oleate, 2% of epoxidized soybean oil, 1% of methyl-compound ethylated vegetable oil, 1.5% of alkylphenol ethoxylates, 1.5% of sodium polyacrylate, 1.5% of dialkyl succinate sodium sulfonate, 1.5% of polyether modified trisiloxane, 1% of starch and 39-44% of solvent; the solvent consists of ethylene glycol, acetone and soybean oil in a mass ratio of 2:1:1.
2. The method for producing a mikania micrantha control agent according to claim 1, wherein the above components are mixed in a certain proportion.
3. Use of the mikania micrantha control agent according to claim 1 for mikania micrantha control.
4. Use of a mikania micrantha control agent according to claim 3 for mikania micrantha control, wherein the control is by any one of the following methods:
a. diluting the mikania micrantha control agent according to claim 1 400-500 times, uniformly spraying the mikania micrantha control agent on the surface of soil to be controlled before germination of mikania micrantha, wherein the sprayed dosage is 125-150 g per 667m 2 ；
b. Diluting 300-400 times of the mikania micrantha control agent according to claim 1, uniformly spraying the mikania micrantha control agent on mikania micrantha stems and leaves after germination, wherein the spraying dosage is 150-200 g per 667m 2 。
CN202211002441.6A 2022-08-19 2022-08-19 Mikania micrantha control agent and preparation method and application thereof Active CN115380911B (en)

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CN103271065A (en) * 2013-06-05 2013-09-04 江苏龙灯化学有限公司 Weeding composition
CN103766373A (en) * 2013-12-09 2014-05-07 广东中迅农科股份有限公司 Weeding composition containing flucarbazone and bentazone
CN105475320A (en) * 2015-12-23 2016-04-13 北京燕化永乐生物科技股份有限公司 Compound weed killer
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CN102283196A (en) * 2011-07-11 2011-12-21 华南农业大学 Controlled release preparation for removing mikania micrantha and preparation method thereof
CN102960175A (en) * 2012-12-11 2013-03-13 云南省农业科学院农业环境资源研究所 Method of utilizing replacement control and herbicide application to control mikania micrantha
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