Preparation method of compound insecticide for preventing and treating myzus persicae

Abstract

The invention belongs to the technical field of insecticides, and particularly relates to a preparation method of a compound insecticide for preventing and treating myzus persicae. The preparation method of the compound insecticide for preventing and treating myzus persicae comprises the following specific steps: selecting the afidopyropen dispersible liquid, the matrine water aqua, the eucalyptol soluble liquid, the azadirachtin microemulsion, the pyrethrin emulsion in water, the emulsifier, the stabilizer, the ethanol solvent and the water. Six compound insecticides are prepared by mixing dipropionate, sophocarpidine, azadirachtin, eucalyptol and pyrethrum, the insecticide has a good killing effect on myzus persicae, the pesticide effect is strong, only a small amount of insecticide needs to be sprayed every time, and the insecticide resistance of pests cannot be affected.

Description

Technical Field

[0001] The invention relates to the technical field of insecticides, in particular to a method for preparing a compound insecticide for preventing and controlling tobacco aphids. Background Art

[0002] Tobacco aphids have a wide range of hosts and are a major pest of tobacco plants. They affect tobacco plant growth, induce sooty mold disease, and, more seriously, spread viral diseases, causing significant losses to tobacco production. Chemical insecticides are the most commonly used treatment, but repeated and long-term use can lead to resistance in tobacco aphids.

[0003] However, existing pesticides still have the following technical problems when used:

[0004] Existing insecticides have poor killing effects on tobacco aphids. In order to improve the killing effect, excessive amounts of insecticides are often sprayed. However, spraying a large amount of insecticides will affect the pests' resistance to the pesticide, and thus in the long run, the purpose of high insecticide killing effect cannot be achieved.

[0005] Therefore, a method for preparing a compound insecticide for controlling tobacco aphid is proposed to solve the above-mentioned problems. Summary of the Invention

[0006] The object of the present invention is to provide a method for preparing a compound insecticide for controlling tobacco aphids, so as to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a method for preparing a compound insecticide for controlling tobacco aphids, wherein the specific steps of the method for preparing the compound insecticide for controlling tobacco aphids are as follows:

[0008] Step 1: Selecting amphotericin dispersible solution, matrine aqueous solution, eucalyptol soluble solution, azadirachtin microemulsion, pyrethrin aqueous emulsion, emulsifier, stabilizer, ethanol solvent and water;

[0009] Step 2: Take 6 containers, numbered as container 1, container 2, container 3, container 4, container 5 and container 6, respectively, pour the dispersible solution of amphotericin into each container, and add matrine aqueous solution to container 1, matrine aqueous solution to container 2, eucalyptol soluble solution to container 3, eucalyptol soluble solution to container 4, azadirachtin microemulsion to container 5, and pyrethrin aqueous emulsion to container 6, respectively, and stir for 2-3 minutes to fully dissolve it to obtain a mixed solution;

[0010] Step 3: Take the emulsifier and slowly add it to the 6 containers in step 2, stirring for 3-4 minutes to fully mix the emulsifier and the mixed solution;

[0011] Step 4: Take a stabilizer and add it to the mixed solution in step 3, stirring evenly to allow the stabilizer to fully dissolve and mix with other ingredients;

[0012] Step 5: Slowly add appropriate amounts of water and ethanol solvent to the mixture under stirring to dilute it to obtain a compound insecticide with a concentration of 10%-12%;

[0013] Step 6: Conduct quality testing on the prepared compound insecticide, including determination of active ingredient content, emulsion stability test, and pH value determination;

[0014] Step 7: After quality inspection, put the pesticide into plastic bottles or glass bottles and place them in a cool, dry, well-ventilated place, avoiding direct sunlight and high temperature environment.

[0015] Preferably, in step six, the method selected for determining the content of the active ingredient of the pesticide is high performance liquid chromatography or gas chromatography.

[0016] Preferably, in step 6, the emulsion stability test is to place the sample in a centrifuge and centrifuge to observe whether there is stratification or precipitation.

[0017] Preferably, in step six, the pH value of the pesticide is measured using pH test paper or a pH meter to ensure that the pH value of the compound pesticide is between 6 and 8.

[0018] Preferably, in container No. 1, the ratio of the added ingredients of the aprotin dispersible liquid and the matrine aqueous solution is 5:2; in container No. 2, the ratio of the added ingredients of the aprotin dispersible liquid and the matrine aqueous solution is 10:1; in container No. 3, the ratio of the added ingredients of the aprotin dispersible liquid and the eucalyptol soluble solution is 1:13; in container No. 4, the ratio of the added ingredients of the aprotin dispersible liquid and the eucalyptol soluble solution is 1:8; in container No. 5, the ratio of the added ingredients of the aprotin dispersible liquid and the azadirachtin microemulsion is 50:3; and in container No. 6, the ratio of the added ingredients of the aprotin dispersible liquid and the pyrethrin aqueous emulsion is 100:27.

[0019] Preferably, in container No. 1, 1-1.3 parts of emulsifier need to be added, 0.3-0.5 parts of stabilizer need to be added, and 17-19 parts of ethanol solvent need to be added; in container No. 2, 0.2-0.3 parts of emulsifier need to be added, 0.1-0.2 parts of stabilizer need to be added, and 3.9-4.6 parts of ethanol solvent need to be added; in container No. 3, 0.05-0.07 parts of emulsifier need to be added, 0.02-0.04 parts of stabilizer need to be added, and 0 .8-1 part; in container No. 4, 6.5-16.5 parts of emulsifier need to be added, 3.8 parts of stabilizer need to be added, and 40-60 parts of ethanol solvent need to be added; in container No. 5, 50-80 parts of emulsifier need to be added, 20-40 parts of stabilizer need to be added, and 300-350 parts of ethanol solvent need to be added; in container No. 6, 150-200 parts of emulsifier need to be added, 60-100 parts of stabilizer need to be added, and 700-800 parts of ethanol solvent need to be added.

[0020] Preferably, the emulsifier is Tween-80 and the stabilizer is sodium sulfite.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The preparation method of the insecticide in the present application is simple. Six compound insecticides are prepared by mixing dicyclopentane, matrine, azadirachtin, eucalyptol and pyrethrum. The insecticide has a good killing effect on tobacco aphids and a strong efficacy. Only a small amount of spraying is required each time, and it will not affect the pest's resistance to pesticides. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a composition diagram of the raw materials of the present invention. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0026] See also Figure 1 , the present invention provides a technical solution:

[0027] A method for preparing a compound insecticide for controlling tobacco aphids, wherein the specific steps of the method for preparing the compound insecticide for controlling tobacco aphids are as follows:

[0028] Step 1: Selecting amphotericin dispersible solution, matrine aqueous solution, eucalyptol soluble solution, azadirachtin microemulsion, pyrethrin aqueous emulsion, emulsifier, stabilizer, ethanol solvent and water;

[0029] Step 2: Take 6 containers, numbered as container 1, container 2, container 3, container 4, container 5 and container 6, respectively, pour the dispersible solution of amphotericin into each container, and add matrine aqueous solution to container 1, matrine aqueous solution to container 2, eucalyptol soluble solution to container 3, eucalyptol soluble solution to container 4, azadirachtin microemulsion to container 5, and pyrethrin aqueous emulsion to container 6, respectively, and stir for 2-3 minutes to fully dissolve it to obtain a mixed solution;

[0030] Step 3: Take the emulsifier and slowly add it to the 6 containers in step 2, stirring for 3-4 minutes to fully mix the emulsifier and the mixed solution;

[0031] Step 4: Take a stabilizer and add it to the mixed solution in step 3, stirring evenly to allow the stabilizer to fully dissolve and mix with other ingredients;

[0032] Step 5: Slowly add appropriate amounts of water and ethanol solvent to the mixture under stirring to dilute it to obtain a compound insecticide with a concentration of 10%-12%;

[0033] Step 6: Conduct quality testing on the prepared compound insecticide, including determination of active ingredient content, emulsion stability test, and pH value determination;

[0034] Step 7: After quality inspection, put the pesticide into plastic bottles or glass bottles and place them in a cool, dry, well-ventilated place, avoiding direct sunlight and high temperature environment.

[0035] Dipropenil has a unique mechanism of action. By interfering with the function of tobacco aphids' chordal organs, it causes the insects to lose their sensitivity to gravity, balance, sound, position, and movement, leading to a loss of coordination and sense of direction. This causes the aphids to quickly stop feeding, lose water, and ultimately die of starvation. Dipropenil has excellent long-lasting effectiveness. After a single application, it maintains an effective concentration on tobacco plants for a long time, thus continuously controlling tobacco aphids for a long period of time, reducing the number of applications, control costs, and environmental impact. The agent is highly systemic and can be absorbed and transported throughout the tobacco plant. Even if tobacco aphids feed on leaves that do not directly come into contact with the agent, they can still be poisoned by ingesting plant sap containing dipropenil. This provides a strong control effect even for aphids that hide on the underside of leaves or are difficult to spray directly. Dipropenil is relatively safe for tobacco plants and, at normal dosages, generally does not adversely affect tobacco growth and development. It also has low toxicity to non-target organisms in the environment, helping to maintain ecological balance.

[0036] Matrine can affect the nervous and respiratory systems of tobacco aphids through contact. The agent can penetrate the aphid's epidermis and interfere with its normal physiological functions, causing symptoms such as paralysis and convulsions, ultimately leading to death. When tobacco aphids feed on tobacco leaves containing matrine, matrine acts on their digestive system, damaging the aphid's midgut tissue, affecting their digestion and absorption functions, preventing them from properly absorbing nutrients, thereby inhibiting their growth and development. In severe cases, it can even lead to their death. Matrine has a certain odor and chemical properties that repel tobacco aphids, making them reluctant to feed on tobacco leaves containing matrine. It also inhibits the aphid's taste receptors, reducing their ability to perceive and ingest food, thereby reducing their food intake and affecting their growth and reproduction. Matrine can interfere with the aphid's endocrine system, affecting the secretion and regulation of reproductive hormones, thereby inhibiting their reproductive capacity. For example, it can reduce the number of eggs laid by aphids or the survival rate of hatched larvae, effectively controlling the growth of the aphid population.

[0037] Azadirachtin affects the taste receptors of tobacco aphids, altering their food selection and ingestion behavior. Aphids exhibit a pronounced aversion to tobacco leaves treated with azadirachtin, thus reducing their feeding hazards. Exposure to or ingestion of substances containing azadirachtin significantly impacts the growth and development of tobacco aphids. Azadirachtin disrupts the aphid's hormonal balance, leading to abnormal molting and developmental delays in nymphs and reduced reproductive capacity in adults, such as decreased egg production and hatching rates. This effectively controls the growth of aphid populations. Azadirachtin's distinctive odor and chemical signals act as a repellent, making aphids reluctant to stay on tobacco plants sprayed with azadirachtin, thereby reducing their opportunities to settle and reproduce there. Azadirachtin also exhibits a moderate contact-killing activity against tobacco aphids. When azadirachtin comes into contact with the surface of tobacco aphids, it can penetrate their epidermis and enter their bodies, interfering with their nervous system and physiological metabolism, causing paralysis and death.

[0038] Eucalyptus oil has a unique odor that repels tobacco aphids. Aphids are sensitive to it. When eucalyptus oil is present on tobacco plants, aphids spend less time and less time perching on them, reducing their attack rate. Eucalyptus oil can also interfere with aphid feeding behavior. It may affect their olfactory or taste receptors, making it difficult for them to accurately locate suitable feeding sites, or reduce their appetite for tobacco leaves, thereby reducing their feeding and minimizing damage. Eucalyptus oil may also inhibit aphid reproduction. Research has shown that components in some plant essential oils can affect the endocrine system of insects, disrupting their reproductive processes. Eucalyptus oil may also work through similar mechanisms, reducing aphid egg production or egg hatching rates, thereby controlling aphid population growth. Eucalyptus oil has a certain contact activity against aphids. When eucalyptol comes into contact with the tobacco aphid's body, it may penetrate the aphid's epidermis and enter its body, disrupting its physiological metabolism and affecting its nervous and respiratory systems, leading to paralysis or even death. However, compared to some specialized chemical insecticides, eucalyptol's contact killing effect may be relatively weak;

[0039] Pyrethrin, the active ingredient in pyrethrum, can quickly penetrate the body wall of tobacco aphids upon contact with their surface. Pyrethrin acts on the aphid's nervous system, disrupting the normal conduction of nerve impulses and causing persistent excitation of the aphid's neuromuscular system. This leads to symptoms such as spasms and paralysis, ultimately causing death. Pyrethrum has a distinctive odor that acts as a repellent for aphids. Aphids are highly sensitive to the scent of pyrethrum. When exposed to the odor, aphids actively avoid it, reducing their activity and habitat in areas containing pyrethrum, thereby reducing their attack on tobacco plants. Pyrethrin has a rapid knockdown effect. Upon contact with aphids, they quickly become incapacitated and drop from tobacco leaves. While some aphids may recover after a period of time, repeated exposure or exposure to high pyrethrin concentrations can ultimately lead to death due to damage to their nervous system. Pyrethrin may interfere with the aphid's endocrine system, affecting the secretion and regulation of reproductive hormones, thereby inhibiting their reproductive capacity. For example, the amount of eggs laid by tobacco aphids can be reduced, or the hatching rate of eggs can be lowered, thereby effectively controlling the growth of the tobacco aphid population.

[0040] In step six, the method selected for determining the content of the active ingredient of the pesticide is high performance liquid chromatography or gas chromatography.

[0041] In step 6, the emulsion stability test is to place the sample in a centrifuge and observe whether there is stratification or precipitation.

[0042] In step 6, the pH value of the pesticide is measured using pH test paper or a pH meter to ensure that the pH value of the compound pesticide is between 6 and 8.

[0043] In container No. 1, the ratio of the added ingredients of abiraterone dispersible solution and matrine aqueous solution is 5:2; in container No. 2, the ratio of the added ingredients of abiraterone dispersible solution and matrine aqueous solution is 10:1; in container No. 3, the ratio of the added ingredients of abiraterone dispersible solution and eucalyptol soluble solution is 1:13; in container No. 4, the ratio of the added ingredients of abiraterone dispersible solution and eucalyptol soluble solution is 1:8; in container No. 5, the ratio of the added ingredients of abiraterone dispersible solution and azadirachtin microemulsion is 50:3; in container No. 6, the ratio of the added ingredients of abiraterone dispersible solution and pyrethrin aqueous emulsion is 100:27.

[0044] In container No. 1, 1-1.3 parts of emulsifier, 0.3-0.5 parts of stabilizer, and 17-19 parts of ethanol solvent need to be added; in container No. 2, 0.2-0.3 parts of emulsifier, 0.1-0.2 parts of stabilizer, and 3.9-4.6 parts of ethanol solvent need to be added; in container No. 3, 0.05-0.07 parts of emulsifier, 0.02-0.04 parts of stabilizer, and 0.8 -1 part; in container No. 4, 6.5-16.5 parts of emulsifier need to be added, 3.8 parts of stabilizer need to be added, and 40-60 parts of ethanol solvent need to be added; in container No. 5, 50-80 parts of emulsifier need to be added, 20-40 parts of stabilizer need to be added, and 300-350 parts of ethanol solvent need to be added; in container No. 6, 150-200 parts of emulsifier need to be added, 60-100 parts of stabilizer need to be added, and 700-800 parts of ethanol solvent need to be added.

[0045] The emulsifier is Tween-80, and the stabilizer is sodium sulfite.

[0046] Example 1:

[0047] The specific steps of the preparation method of the No. 1 compound insecticide for preventing and controlling tobacco aphids are as follows:

[0048] Step 1: Take a container, numbered as container 1, pour 5 parts of abicyclon dispersible liquid and 2 parts of matrine aqueous solution into the container, stir for 2-3 minutes to fully dissolve them, and obtain a mixed solution;

[0049] Step 2: Take the emulsifier and slowly add it to the container in step 1, stirring for 3-4 minutes to fully mix the emulsifier and the mixed solution;

[0050] Step 3: Take a stabilizer and add it to the mixed solution in step 2, stirring evenly to allow the stabilizer to fully dissolve and mix with other ingredients;

[0051] Step 4: Slowly add appropriate amounts of water and ethanol solvent to the mixture under stirring to dilute it to obtain a compound insecticide with a concentration of 10%-12%;

[0052] Step 5: Conduct quality testing on the prepared compound insecticide, including determination of active ingredient content, emulsion stability test, and pH value determination;

[0053] Step 6: After the quality inspection, the pesticide is placed in a plastic bottle or glass bottle and placed in a cool, dry, well-ventilated place, away from direct sunlight and high temperature environment;

[0054] Experimental results:

[0055]

[0056] Example 2:

[0057] The specific steps of the preparation method of the No. 2 compound insecticide for preventing and controlling tobacco aphids are as follows:

[0058] Step 1: Take a container, numbered as container 2, and pour 10 parts of abicyclon dispersible liquid and 1 part of matrine aqueous solution into the container respectively, and stir for 2-3 minutes to fully dissolve them to obtain a mixed solution;

[0059] Step 2: Take the emulsifier and slowly add it to the container in step 1, stirring for 3-4 minutes to fully mix the emulsifier and the mixed solution;

[0060] Step 3: Take a stabilizer and add it to the mixed solution in step 2, stirring evenly to allow the stabilizer to fully dissolve and mix with other ingredients;

[0061] Step 4: Slowly add appropriate amounts of water and ethanol solvent to the mixture under stirring to dilute it to obtain a compound insecticide with a concentration of 10%-12%;

[0062] Step 5: Conduct quality testing on the prepared compound insecticide, including determination of active ingredient content, emulsion stability test, and pH value determination;

[0063] Step 6: After the quality inspection, the pesticide is placed in a plastic bottle or glass bottle and placed in a cool, dry, well-ventilated place, away from direct sunlight and high temperature environment;

[0064] Experimental results:

[0065]

[0066] Example 3:

[0067] The specific steps of the preparation method of the No. 3 compound insecticide for preventing and controlling tobacco aphids are as follows:

[0068] Step 1: Take a container, numbered as container 3, and pour 1 part of acyclovir dispersible liquid and 13 parts of eucalyptol soluble liquid into the container respectively, and stir for 2-3 minutes to fully dissolve them to obtain a mixed solution;

[0069] Step 2: Take the emulsifier and slowly add it to the container in step 1, stirring for 3-4 minutes to fully mix the emulsifier and the mixed solution;

[0070] Step 3: Take a stabilizer and add it to the mixed solution in step 2, stirring evenly to allow the stabilizer to fully dissolve and mix with other ingredients;

[0071] Step 4: Slowly add appropriate amounts of water and ethanol solvent to the mixture under stirring to dilute it to obtain a compound insecticide with a concentration of 10%-12%;

[0072] Step 5: Conduct quality testing on the prepared compound insecticide, including determination of active ingredient content, emulsion stability test, and pH value determination;

[0073] Step 6: After quality inspection, put the pesticide into plastic bottles or glass bottles and place them in a cool, dry, well-ventilated place, avoiding direct sunlight and high temperature environment.

[0074] Experimental results:

[0075]

[0076] Example 4:

[0077] The specific steps of the preparation method of the No. 4 compound insecticide for controlling tobacco aphids are as follows:

[0078] Step 1: Take a container, numbered container 4, pour 1 part of acyclovir dispersible solution and 8 parts of eucalyptol soluble solution into the container, stir for 2-3 minutes to fully dissolve them, and obtain a mixed solution;

[0079] Step 2: Take the emulsifier and slowly add it to the container in step 1, stirring for 3-4 minutes to fully mix the emulsifier and the mixed solution;

[0080] Step 3: Take a stabilizer and add it to the mixed solution in step 2, stirring evenly to allow the stabilizer to fully dissolve and mix with other ingredients;

[0081] Step 4: Slowly add appropriate amounts of water and ethanol solvent to the mixture under stirring to dilute it to obtain a compound insecticide with a concentration of 10%-12%;

[0082] Step 5: Conduct quality testing on the prepared compound insecticide, including determination of active ingredient content, emulsion stability test, and pH value determination;

[0083] Step 6: After the quality inspection, the pesticide is placed in a plastic bottle or glass bottle and placed in a cool, dry, well-ventilated place, away from direct sunlight and high temperature environment;

[0084] Experimental results:

[0085]

[0086] Example 5:

[0087] The specific steps of the preparation method of the No. 5 compound insecticide for controlling tobacco aphids are as follows:

[0088] Step 1: Take a container, numbered as container No. 5, pour 50 parts of amphotericin dispersible liquid and 3 parts of azadirachtin microemulsion into the container respectively, stir for 2-3 minutes to fully dissolve them, and obtain a mixed solution;

[0089] Step 2: Take the emulsifier and slowly add it to the container in step 1, stirring for 3-4 minutes to fully mix the emulsifier and the mixed solution;

[0090] Step 3: Take a stabilizer and add it to the mixed solution in step 2, stirring evenly to allow the stabilizer to fully dissolve and mix with other ingredients;

[0091] Step 4: Slowly add appropriate amounts of water and ethanol solvent to the mixture under stirring to dilute it to obtain a compound insecticide with a concentration of 10%-12%;

[0092] Step 5: Conduct quality testing on the prepared compound insecticide, including determination of active ingredient content, emulsion stability test, and pH value determination;

[0093] Step 6: After the quality inspection, the pesticide is placed in a plastic bottle or glass bottle and placed in a cool, dry, well-ventilated place, away from direct sunlight and high temperature environment;

[0094] Experimental results:

[0095]

[0096] Example 6:

[0097] The specific steps of the preparation method of the No. 6 compound insecticide for controlling tobacco aphids are as follows:

[0098] Step 1: Take a container, numbered container 6, pour 100 parts of abicyclon dispersible liquid and 27 parts of pyrethrin emulsion into the container, stir for 2-3 minutes to fully dissolve, and obtain a mixed solution;

[0099] Step 2: Take the emulsifier and slowly add it to the container in step 1, stirring for 3-4 minutes to fully mix the emulsifier and the mixed solution;

[0100] Step 3: Take a stabilizer and add it to the mixed solution in step 2, stirring evenly to allow the stabilizer to fully dissolve and mix with other ingredients;

[0101] Step 4: Slowly add appropriate amounts of water and ethanol solvent to the mixture under stirring to dilute it to obtain a compound insecticide with a concentration of 10%-12%;

[0102] Step 5: Conduct quality testing on the prepared compound insecticide, including determination of active ingredient content, emulsion stability test, and pH value determination;

[0103] Step 6: After the quality inspection, the pesticide is placed in a plastic bottle or glass bottle and placed in a cool, dry, well-ventilated place, away from direct sunlight and high temperature environment;

[0104] Experimental results:

[0105]

[0106]

[0107] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure signs in the claims should not be regarded as limiting the claims involved.

[0108] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing a compound insecticide for controlling tobacco aphids, characterized in that: The specific steps of the method for preparing the compound insecticide for preventing and controlling tobacco aphids are as follows: Step 1: Selecting amphotericin dispersible solution, matrine aqueous solution, eucalyptol soluble solution, azadirachtin microemulsion, pyrethrin aqueous emulsion, emulsifier, stabilizer, ethanol solvent and water; Step 2: Take 6 containers, numbered as container 1, container 2, container 3, container 4, container 5 and container 6, respectively, pour the dispersible solution of amphotericin into each container, and add matrine aqueous solution to container 1, matrine aqueous solution to container 2, eucalyptol soluble solution to container 3, eucalyptol soluble solution to container 4, azadirachtin microemulsion to container 5, and pyrethrin aqueous emulsion to container 6, respectively, and stir for 2-3 minutes to fully dissolve it to obtain a mixed solution; Step 3: Take the emulsifier and slowly add it to the 6 containers in step 2, stirring for 3-4 minutes to fully mix the emulsifier and the mixed solution; Step 4: Take a stabilizer and add it to the mixed solution in step 3, stirring evenly to allow the stabilizer to fully dissolve and mix with other ingredients; Step 5: Slowly add appropriate amounts of water and ethanol solvent to the mixture under stirring to dilute it to obtain a compound insecticide with a concentration of 10%-12%; Step 6: Conduct quality testing on the prepared compound insecticide, including determination of active ingredient content, emulsion stability test, and pH value determination; Step 7: After quality inspection, put the pesticide into plastic bottles or glass bottles and place them in a cool, dry, well-ventilated place, avoiding direct sunlight and high temperature environment.

2. The method for preparing a compound insecticide for controlling tobacco aphid according to claim 1, characterized in that: In step six, the method selected for determining the content of the active ingredient of the pesticide is high performance liquid chromatography or gas chromatography.

3. The method for preparing a compound insecticide for controlling tobacco aphid according to claim 1, characterized in that: In step 6, the emulsion stability test is to place the sample in a centrifuge and observe whether there is stratification or precipitation.

4. The method for producing a compound insecticide for controlling tobacco aphid according to claim 1, characterized in that: In step 6, the pH value of the pesticide is measured using pH test paper or a pH meter to ensure that the pH value of the compound pesticide is between 6 and 8.

5. The method for producing a compound insecticide for controlling tobacco aphid according to claim 1, characterized in that: In container No. 1, the ratio of the added ingredients of abiraterone dispersible solution and matrine aqueous solution is 5:2; in container No. 2, the ratio of the added ingredients of abiraterone dispersible solution and matrine aqueous solution is 10:1; in container No. 3, the ratio of the added ingredients of abiraterone dispersible solution and eucalyptol soluble solution is 1:13; in container No. 4, the ratio of the added ingredients of abiraterone dispersible solution and eucalyptol soluble solution is 1:8; in container No. 5, the ratio of the added ingredients of abiraterone dispersible solution and azadirachtin microemulsion is 50:3; in container No. 6, the ratio of the added ingredients of abiraterone dispersible solution and pyrethrin aqueous emulsion is 100:

27.

6. The method for producing a compound insecticide for controlling tobacco aphid according to claim 1, characterized in that: In container No. 1, 1-1.3 parts of emulsifier, 0.3-0.5 parts of stabilizer, and 17-19 parts of ethanol solvent need to be added; in container No. 2, 0.2-0.3 parts of emulsifier, 0.1-0.2 parts of stabilizer, and 3.9-4.6 parts of ethanol solvent need to be added; in container No. 3, 0.05-0.07 parts of emulsifier, 0.02-0.04 parts of stabilizer, and 0.8 -1 part; in container No. 4, 6.5-16.5 parts of emulsifier need to be added, 3.8 parts of stabilizer need to be added, and 40-60 parts of ethanol solvent need to be added; in container No. 5, 50-80 parts of emulsifier need to be added, 20-40 parts of stabilizer need to be added, and 300-350 parts of ethanol solvent need to be added; in container No. 6, 150-200 parts of emulsifier need to be added, 60-100 parts of stabilizer need to be added, and 700-800 parts of ethanol solvent need to be added.

7. The method for producing a compound insecticide for controlling tobacco aphid according to claim 1, characterized in that: The emulsifier is Tween-80, and the stabilizer is sodium sulfite.

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