CN112825857A - Pesticide for preventing and treating water hyacinth and preventing and treating method thereof - Google Patents
Pesticide for preventing and treating water hyacinth and preventing and treating method thereof Download PDFInfo
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- 241000169203 Eichhornia Species 0.000 claims abstract description 62
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- 239000003814 drug Substances 0.000 claims abstract description 31
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- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 7
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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
- A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
- A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
- A01N39/04—Aryloxy-acetic acids; Derivatives thereof
-
- 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
- A01N25/02—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 containing liquids as carriers, diluents or solvents
-
- 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
- A01N25/02—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 containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
- A01N25/06—Aerosols
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
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- Dispersion Chemistry (AREA)
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Abstract
The invention provides a medicament for preventing and treating water hyacinth and a prevention and treatment method thereof, wherein the medicament comprises the following components in percentage by mass: (660-700): (15-25): (95-105): (9100-9250) nonanoic acid and paraffin oil blending agent: sodium dimethyl tetrachloride: a flying prevention auxiliary agent and water. The pesticide and the control method thereof for controlling the water hyacinth, which are provided by the invention, not only achieve a more efficient water hyacinth control effect, but also better ensure the water ecology and the surrounding environment safety, reduce the usage amount of the pesticide to the maximum extent, reduce the control cost, effectively realize the ecological and efficient control effect of the external invading biological water hyacinth, have the advantages of less pesticide liquid usage, high control efficiency and low cost, are suitable for being popularized and applied in areas such as rivers, reservoirs, lakes and the like with more concentrated water hyacinth occurrence, and have wide application range, high efficiency, low toxicity and low residue.
Description
Technical Field
The invention relates to the technical field of aquatic plant control, in particular to a pesticide for controlling water hyacinth and a control method thereof.
Background
Water hyacinth, also called eichhornia crassipes, is known by the academic name: eichhornia crassipes (Mart.) Solms) floating herbs were listed as one of the hundreds of alien invasive species in the world. The method has strong reproductive capacity and adaptability, is easy to cause damages of encroaching on lake surfaces, blocking river channels, covering fish ponds and the like, and the dense water hyacinth can limit the flow of water bodies, destroy food chains of underwater animals, cause underwater plants to die due to insufficient illumination, reduce the dissolved oxygen in the water bodies, influence the growth of underwater organisms and destroy the ecological environment of river gushes. Meanwhile, the water treatment agent has the capability of enriching heavy metals, and rotten bodies sink to the water bottom after death to form a heavy metal high-content layer which directly kills benthos and greatly destroys underwater ecology.
The existing water hyacinth prevention and control mainly comprises the following steps: the manual removal method, the mechanical stirring and killing method, the chemical prevention method and the biological prevention and control method are low in efficiency and are not suitable for treatment of large water areas, excessive manpower and material resources are often needed for manual removal, the mechanical stirring and killing method is difficult to enable water hyacinth to be fully killed, and the prevention and control effect is not thorough; the chemical prevention method has serious influence on water quality due to the use of chemical pesticide preparations, and the existing biological prevention method introducing natural enemies has the defects of slow effect and the like. Therefore, an efficient low-toxicity low-residue biological agent and a water hyacinth control method are found, so that the control efficiency of the water hyacinth is fully improved, the water ecology and the surrounding environment safety are effectively ensured, and the method has important significance for realizing the ecological and efficient control of the alien invasive biological water hyacinth.
Disclosure of Invention
In view of the above, the invention provides a pesticide for preventing and treating water hyacinth and a method for preventing and treating the water hyacinth.
The technical scheme of the invention is realized as follows:
the invention provides a medicament for preventing and treating water hyacinth, which is characterized in that: the medicament comprises the following components in percentage by mass: (660-700): (15-25): (95-105): (9100-9250) nonanoic acid and paraffin oil blending agent: sodium dimethyl tetrachloride: a flying prevention auxiliary agent and water.
More preferably, the medicament comprises the following components in percentage by mass: 667: 20: 100: 9213 blending agent of nonanoic acid with paraffin oil: sodium dimethyl tetrachloride: a flying prevention auxiliary agent and water.
Further, the blending agent of the nonanoic acid and the paraffin oil comprises 45-65% of the nonanoic acid and 35-55% of the paraffin oil in percentage by mass. The mixing proportion of the pelargonic acid and the paraffin oil is controlled, and the action efficiency of the pelargonic acid is improved.
Further, the pelargonic acid is cage for animals plant source pelargonic acid of the family Boehmeridae.
Further, the flying prevention auxiliary agent is formed by mixing modified plants, a nonionic surfactant and a settling agent.
The invention adopts the flight control auxiliary agent as the tank mixing addition auxiliary agent, the dosage of the auxiliary agent is 1-1.5% of the liquid medicine amount, and the invention has the functions of effectively adjusting the particle size spectrum of fog drops and reducing the formation of small fog drops in the flight control operation, thereby effectively reducing drift, slowing down the evaporation of the fog drops and leading the liquid medicine to have excellent wettability and spreadability on the surface of the plant leaf.
A method for preventing and treating water hyacinth by using the pesticide comprises the steps of loading the pesticide by an unmanned aerial vehicle to spray the pesticide under the conditions of 20-35 ℃ of air temperature and no more than 3-level of wind speed in sunny days and sunshine, wherein the pesticide application amount is 18-22 kg/mu. The unmanned aerial vehicle is adopted to strictly and quantitatively use the amount of the sprayed liquid medicine, and under a certain pesticide application condition, the temperature range of pesticide application is enlarged, the pesticide application time and the pesticide application amount are controlled, the water hyacinth is guaranteed to be fully dead, the prevention and treatment effect is more thorough, and the prevention and treatment effect is improved.
More preferably, the medicament is administered at a rate of 20 kg/acre. The dosage of the spraying agent is controlled, so that the control effect of the water hyacinth is fast achieved, and the quality of the water ecological environment is guaranteed.
Further, the rate of spraying the medicament by the unmanned aerial vehicle is 1.2-2.4L/min. The spraying speed of the unmanned aerial vehicle is controlled, the uniformity of pesticide application is improved, and the dosage is saved.
Further, the flying speed of the unmanned aerial vehicle is 0.8-1.2 m/s, and the spraying height is 3-5 m by the height distance between the unmanned aerial vehicle and the water hyacinth. The flying speed, the spraying rate and the spraying height of the unmanned aerial vehicle are controlled, the uniformity of pesticide application is guaranteed, and the prevention and control effect is improved.
Compared with the prior art, the invention has the beneficial effects that: the pesticide for preventing and treating the water hyacinth is prepared by effectively combining a blending agent prepared from pelargonic acid and paraffin oil with methoxone sodium and combining a certain amount of a flying prevention auxiliary agent for compounding, it not only achieves the water hyacinth prevention and control effect with higher efficiency, but also better ensures the water ecology and the surrounding environment safety, the invention has the advantages of high prevention and control effect on the water hyacinth, high prevention and control efficiency, high control efficiency, low cost, wide application range, high efficiency, low toxicity and low residue, and the plant withering rate reaches more than 90 percent in 7 days and the plant sinking rate reaches 85 percent in 30 days.
Drawings
FIG. 1 is a view of the surface of a lake before the prevention and treatment of the water hyacinth in a central lake according to the present invention;
FIG. 2 is a view of the 10 th day after the prevention and treatment of the water hyacinth in a central lake according to the present invention;
FIG. 3 is a view of the lake surface at 70 days after the prevention and treatment of the Central lake Water hyacinth of the present invention;
FIG. 4 is a view showing the situation of the surface of a lake after the completion of the prevention and treatment of the water hyacinth in the central lake according to the present invention;
Detailed Description
In order to better understand the technical content of the invention, specific examples are provided below to further illustrate the invention.
The experimental methods used in the examples of the present invention are all conventional methods unless otherwise specified.
The materials, reagents and the like used in the examples of the present invention can be obtained commercially without specific description.
Example groups-different water hyacinth controlling agents were prepared separately, and the formulations of the components are as follows:
wherein, the mass ratio of the pelargonic acid and the paraffin oil in the blending agent of the pelargonic acid and the paraffin oil is as follows: 55: 45; the pelargonic acid is cage for animals plant source pelargonic acid of the family Boehmeridae; the flying prevention auxiliary agent comprises the following components in percentage by mass: 48:17:18 modified vegetable oil, polysorbate-80 and glycerol.
The formula of each component of the pesticide is as follows:
| medicament/(g) | Pelargonic acid | Sodium dimethyl tetrachloro | Flying defence auxiliary agent | Water (W) | Total mass/g |
| Comparative examples 1 to formulation 4 | 366.85 | 45 | 100 | 9488.15 | 10000 |
| Comparative examples 2 to formulation 5 | 0 | 30 | 0 | 9970 | 10000 |
| Comparative examples 3 to 6 | 0 | 60 | 0 | 9960 | 10000 |
| Blank control-clear Water | 0 | 0 | 0 | 10000 | 10000 |
Wherein the nonanoic acid is cage for animals botanical nonanoic acid of the family Boehmeridae, and the flying prevention auxiliary comprises the following components in percentage by mass: 48:17:18 modified vegetable oil, polysorbate-80 and ethanol.
1. The pesticide for preventing and treating the water hyacinth, which is prepared in the example group and the comparative example group respectively, is subjected to a water hyacinth prevention and treatment efficacy experiment.
(1) Experimental setup:
selecting 350m concentrated water hyacinth2The lake area is taken as an experimental area and is randomly divided into 7 experimental cells, and each experimental cell is 50m2Respectively adopting the different water hyacinth prevention and control medicaments for treatment, and setting 3 times of repetition in each cell;
(2) the application method comprises the following steps:
selecting a material which is mixed with other materials in a sunny day under the conditions that the air temperature is 28 +/-3 ℃ and the wind speed is not more than 3 grades in the morning of 11: 00 o, adopting a Dajiang Mg-1p type plant protection unmanned aerial vehicle to load the medicament for spraying, wherein the application dose is 20 kg/mu;
the rate of spraying the medicament by the unmanned aerial vehicle is 1.8L/min; the flying speed of the unmanned aerial vehicle is 1.0 m/s, and the average spraying height is 4 +/-0.2 m calculated by the height distance between the unmanned aerial vehicle and the water hyacinth.
(3) The experimental investigation, recording and measurement method comprises the following steps:
the observation is carried out 2 hours, 1 day, 3 days, 5 days, 7 days, 10 days and 15 days after the medicine is taken, the field investigation is carried out by referring to the 'field efficacy test standard' of the Ministry of agriculture, and the original data record is made.
Observing the number of the live grass in the post-treatment area and the control area and counting.
And secondly, observing the inactivation condition of the root zone of the post-treatment area of the pesticide, and increasing and observing the plant sinking condition after 7 days.
Third, calculation of prevention and cure effect
(4) Experimental results and analysis:
as can be seen from the control effect of water hyacinth, the preferable formulation of water hyacinth is: blending agent of pelargonic acid and paraffin oil: sodium dimethyl tetrachloride: the mass ratio of the flight control auxiliary agent to the water is 667: 20: 100: 9213 the control effect of the composition on water hyacinth is optimal, wherein the plant withering rate of 7 days can reach more than 98%, the plant settlement rate of 30 days can reach 85%, and the water hyacinth can be controlled efficiently and ecologically.
In contrast, in example 3 and comparative examples 1 to 3, in comparative example 1, after the drug is applied for 30 days, the water hyacinth regrowth phenomenon occurs, the drying rate and the lodging rate decrease, and the amount of the methoxone sodium increases. Compared with the example 3, the control effect of the single use of the sodium methoxone in the comparative examples 2 and 3 is greatly reduced, and the dosage is obviously increased.
2. The invention also takes the central lake of the Qiongshan district of Haikou city as a research object, quantitatively evaluates the water quality and the influence characteristics of aquatic organisms of the water areas of the central lake by adopting the medicament for preventing and controlling the water hyacinths to prevent and control the water hyacinths by monitoring and evaluating the water environment of the central lake before and after the water hyacinths are prevented and control and the change conditions of the aquatic organisms, and deeply evaluates the influence conditions of the water hyacinths to the water environment.
The (first) preventive agent: comprises the following components in percentage by mass: 667: 20: 100: 9213 blending agent of nonanoic acid with paraffin oil: sodium dimethyl tetrachloride: a flying prevention aid and water; wherein, the mass ratio of the pelargonic acid and the paraffin oil in the blending agent of the pelargonic acid and the paraffin oil is as follows: 65: 35; the pelargonic acid is cage for animals plant source pelargonic acid of the family Boehmeridae; the flying prevention auxiliary agent comprises the following components in percentage by mass: 48:17:18 modified vegetable oil, polysorbate-80 and glycerol.
(II) a control method: selecting a material which is mixed with other materials in a sunny day under the conditions that the air temperature is 28 +/-3 ℃ and the wind speed is not more than 3 grades in the morning of 11: 00 o, adopting a Dajiang Mg-1p type plant protection unmanned aerial vehicle to load the medicament for spraying, wherein the application dose is 20 kg/mu; one unmanned aerial vehicle can carry 10kg of medicament, and two unmanned aerial vehicles can spray water hyacinth with the area of one mu;
the rate of spraying the medicament by the unmanned aerial vehicle is 1.8L/min; the flying speed of the unmanned aerial vehicle is 1.0 m/s, and the average spraying height is 4 +/-0.2 m calculated by the height distance between the unmanned aerial vehicle and the water hyacinth.
(III) research on influence of the control agent on the central lake water environment
The feasibility of the method for controlling the water hyacinth is judged by analyzing and evaluating the possible influence caused by controlling the water hyacinth in the central lake. Wherein, the water quality change condition of the central lake before and after the water hyacinth medicament is applied is monitored and prevented mainly from two aspects of the influence on the water quality and the substrate. Sampling on site to monitor the concentration of the MCPA and the change of the chemical characteristics of the substrate in the water body at different periods and the same position, analyzing the influence on the water environment, and evaluating the eutrophication degree of the water environment.
1. Setting a monitoring area: the depth of water in the central lake is about 150 mu and about 1 m. 3 sampling areas are provided in the central lake, namely an upstream area, a middle-stream area and a downstream area of the central lake. According to the technical requirements in technical Specifications for surface water and sewage monitoring (HJ/T91-2002), monitoring vertical lines are uniformly arranged by adopting a grid point distribution method (150m multiplied by 150m), and each vertical line is provided with 1 sampling point (at a position 0.5m below the water surface, when the water depth is less than 0.5m, at a position 1/2). Setting 5 surface water monitoring section sampling points in total, wherein a sampling point 1 and a sampling point 2 are arranged upstream; the sampling points 3 and 4 are in midstream; sample 5 is downstream. Meanwhile, a grid point distribution method (200m multiplied by 200m) is adopted, and 1 sediment sampling point is respectively arranged at the upstream, the midstream and the downstream.
2. The current situation monitoring method comprises the following steps: the current situation is monitored 1 week before the water hyacinth is prevented and removed, each section is continuously monitored for 3 days, water samples are collected once at 10 am every day, 15 water samples are collected in total, and sediments are collected on the first day and 3 sediments are collected in total.
3. Monitoring the process: collected at 10 am every day on days 1, 10, 20, 40, and 70 (all rotten water hyacinth) after spraying. 25 water samples are collected in total, and 15 sediments are collected.
4. Monitoring pesticide residue: the chemical control mainly adopts the pesticide active ingredient as the methoxone sodium, and only the methoxone sodium residue is monitored: and (3) simultaneously determining the residual condition of the sodium methoxone during current situation monitoring, and collecting water samples and the residual condition of the sediment monitoring agent X on days 1, 3, 5 and 7 after application, wherein 20 water samples and 12 sediments are collected.
5. Evaluation criteria: the water quality of the Naccur lake is used as agricultural irrigation water, and is referred to the environmental quality standard of surface water (GB3838-2002) class V standard.
6. And (3) water quality monitoring results:
(1) the current state monitoring results of the water quality (conventional index) of the Naccur lake are shown in the following table 1:
the present monitoring results in table 1 show that: three indexes of total nitrogen, total phosphorus and chemical oxygen demand in the current situation monitoring of lake water quality of the central lake exceed the V-class water quality standard, and other water quality indexes meet the V-class standard of surface water environmental quality standard (GB 3838-2002).
(2) The results of monitoring the process of the water quality (conventional index) of the Nacchu lake are shown in Table 2 below:
as indicated by the process monitoring results in table 2: on the 1 st day, 10 th day, 20 th day, 40 th day and 70 th day after the pesticide is sprayed, only the total nitrogen content in the water quality process monitoring of the lake in that central area exceeds the V-class water quality standard, and other water quality indexes meet the V-class standard of the environmental quality Standard of surface Water (GB 3838-2002). And the data monitored at day 70 after spraying was significantly better than the data monitored in the previous 4 courses.
Before the flying prevention technology is used for preventing and controlling the water hyacinth, three indexes of total nitrogen, total phosphorus and chemical oxygen demand in the water quality indexes of the lake in the center exceed the V-class standard, and other water quality indexes meet the V-class standard of the environmental quality Standard of surface Water (GB 3838-2002). After the water hyacinth is prevented and controlled by using the flying prevention technology, the water quality index of the lake in that center exceeds the V-class standard index and only has total nitrogen, and other water quality indexes meet the V-class standard of the environmental quality standard of surface water (GB 3838-2002). The quality of the environment for preventing and treating the water in the central lake after the water hyacinth is controlled is obviously improved.
(3) The monitoring results of the current situation of the chlorophyll content and the sodium methoxone content of the water quality of the Naxin lake are shown in the following table 3:
as can be seen from Table 3, the water quality of the central lake does not contain the methoxone sodium agent but contains a certain amount of chlorophyll a, which indicates that the water of the central lake has a certain eutrophication phenomenon.
(4) The monitoring results of the chlorophyll and sodium methoxone content process in the water quality of the Naccu lake are shown in the following table 5:
as is clear from table 5, sodium methoxone was detected in water on days 1, 10, and 20 after administration, and was mainly concentrated in spots 4 and 5. No residue of methoxone sodium was detected in the water at day 40, 70 5 spots after application. The chlorophyll-a content in water is quantitatively increased compared to that before administration.
(5) Results of monitoring the sediments in the central lake before the application of the control agents are shown in table 6:
(6) results of monitoring the sediments in the central lake before the application of the control agents are shown in table 7:
from tables 6 and 7, no chemical agent, i.e., methoxone sodium, remained in the deposit, and the indices of the deposit were within the standard ranges, regardless of whether the drug was administered or not.
(7) The sodium methoxone residue in the water of the Nacchini lake was monitored as shown in Table 8:
(8) the sediment in the nacre was monitored for the residue of methoxone, as shown in table 9:
as shown in tables 8 and 9, no drug methoxone was detected in the water at sample point 1 (upstream), sample point 2 (upstream), and sample point 3 (midstream) on days 1, 3, 5, and 7 after application, and methoxone was detected at sample point 4 (midstream) and sample point 5 (downstream), all the time, ranging from 1.301ug/L to 4.916 ug/L. The influence of the water quality on the water body is far weaker than other 5 indexes (lower than 3 orders of magnitude), and in the whole sampling period, except for water hyacinth, the death of aquatic organisms such as fish and the like in the central lake is not seen. No drug X residue was detected in the sediment of the central lake.
In conclusion, after the prevention and control method is used for preventing and controlling the water hyacinth, the water environment quality of the central lake is gradually improved, and the water environment quality evaluation of the upstream, the midstream and the downstream of the central lake basically reaches the middle evaluation level and the above evaluation levels. The prevention and control method of the invention is shown to be capable of effectively improving the water quality condition of the water body, reducing the eutrophication degree of the water body and controlling the growth of the water hyacinth.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The drug for preventing and treating the water hyacinth is characterized in that: the medicament comprises the following components in percentage by mass: (660-700): (15-25): (95-105): (9100-9250) nonanoic acid and paraffin oil blending agent: sodium dimethyl tetrachloride: a flying prevention auxiliary agent and water.
2. The agent for controlling hyacinth as claimed in claim 1, wherein: the medicament comprises the following components in percentage by mass: 667: 20: 100: 9213 blending agent of nonanoic acid with paraffin oil: sodium dimethyl tetrachloride: a flying prevention auxiliary agent and water.
3. The agent for controlling hyacinth as claimed in claim 1, wherein: the blending agent of the pelargonic acid and the paraffin oil comprises 45-65% of pelargonic acid and 35-55% of paraffin oil in percentage by mass.
4. The agent for controlling hyacinth as claimed in claim 1, wherein: the pelargonic acid is cage for animals plant source pelargonic acid of the family Boehmeridae.
5. The agent for controlling hyacinth as claimed in claim 1, wherein: the flying prevention aid is prepared by mixing modified plants, a nonionic surfactant and a wetting agent.
6. A method for controlling water hyacinth using the agent of any one of claims 1 to 4, wherein the method comprises the following steps: and (3) loading the medicament by using an unmanned aerial vehicle to spray the medicament under the conditions of 20-35 ℃ of air temperature and less than or equal to 3-grade wind speed in sunny days with the application dosage of 18-22 kg/mu.
7. The method for controlling water hyacinth as recited in claim 5, wherein: the application amount of the medicament is 20 kg/mu.
8. The method for controlling water hyacinth as recited in claim 5, wherein: the rate of spraying the medicament by the unmanned aerial vehicle is 1.2-2.4L/min.
9. The method for controlling water hyacinth as recited in claim 5, wherein: the unmanned aerial vehicle flying speed is 0.8 ~ 1.2 meters per second, and the spraying height uses unmanned aerial vehicle and the high distance of water hyacinth to count and is 3 ~ 5 m.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0494386A1 (en) * | 1991-01-08 | 1992-07-15 | Mycogen Corporation | Novel process and composition for controlling weeds |
| CN111183977A (en) * | 2020-01-21 | 2020-05-22 | 浙江大学 | Special auxiliary agent for spraying of plant protection unmanned aerial vehicle and preparation method and application thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0494386A1 (en) * | 1991-01-08 | 1992-07-15 | Mycogen Corporation | Novel process and composition for controlling weeds |
| CN111183977A (en) * | 2020-01-21 | 2020-05-22 | 浙江大学 | Special auxiliary agent for spraying of plant protection unmanned aerial vehicle and preparation method and application thereof |
Non-Patent Citations (2)
| Title |
|---|
| 刘念江等: "水葫芦防治方法研究进展", 《热带农业科学》 * |
| 高菊芳等: "天然作物保护剂-植物和动物源产品", 《世界农药》 * |
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