A method for controlling sycamore fruit hairs

Abstract

The present invention relates to a method for controlling the fruit hair of the plane tree, comprising: a. drilling an injection hole at the primary bifurcated branch of the plane tree, the drilling time of the injection hole is the end of March-mid-April or mid-April-early May each year; b. inserting a device for controlling the fruit hair of the plane tree into the injection hole, the device comprising a medicament composed of the following components by mass percentage: 1%-5% ethephon, 0.5%-1.5% fructose, 0.05%-0.15% nicotinic acid, and the balance is water. The method of the present invention is simple to operate, has a good fruit hair control effect, and the removal rate of the plane tree fruit is as high as 99%; the medicament used in the present invention, whether it is a low-concentration medicament or a high-concentration medicament, is within an acceptable range for the damage to the plane tree body; the device used in the present invention for controlling the fruit hair of the plane tree can effectively ensure that the medicament flows out smoothly without overflowing, and can accurately calculate the dosage of the medicine.

Description

Technical Field

[0001] The invention relates to the technical field of urban greening, and in particular to a method for controlling sycamore fruit hairs. Background Art

[0002] The sycamore is one of the backbone tree species selected by the National Greening Committee and has a long history of cultivation in my country. The main characteristics of the sycamore are strong adaptability, rapid growth, fast shade formation, tolerance to pruning, easy maintenance, shading in summer, light transmission in winter, etc., which can reduce urban dust, especially PM2.5. However, after growing to a certain stage, it will undergo reproductive growth. From April to June every year, a large number of old dried fruits hanging on the tree burst, and the fruit hairs fly everywhere, polluting the air and seriously endangering the health of pedestrians. The harm caused by the fruit hairs can cause red eyes, blurred vision, itchy nose, runny nose, and intense and frequent coughing. In severe cases, it can lead to coughing up blood and even suffocation and death. It is one of the main causes of seasonal attacks of bronchial pneumonia and asthma in the elderly and children. At the same time, if the sycamore is planted in a precision instrument factory, the falling of the fruit hairs will also affect the product quality. The falling hairs of the sycamore fruit balls have become a major public nuisance in the city. Therefore, it is of great significance to carry out fruit hair control, create a beautiful, warm, tidy and clean green environment, truly embody the purpose of urban greening construction that integrates man and nature, and make the streets more suitable for walking.

[0003] At present, there are two methods for treating the fruit hairs of sycamore: pruning and drug regulation. Although pruning can remove the fruit balls and does not cause much damage to the tree, the workload is too large and the high-altitude operation is dangerous. Drug regulation usually uses the infusion method (the infusion device mainly includes an infusion bag, an infusion tube and an infusion needle). During the operation, a hole is first made in the tree, and then the needle is inserted into the hole for infusion. However, the disadvantages of this method are that the drug delivery device has a complex structure, resulting in cumbersome operation, the drug will overflow from the needle hole, resulting in poor treatment effect, and the dosage cannot be evaluated.

[0004] Therefore, technicians in this field are committed to studying a method that is simple to operate, has a good effect on controlling fruit hair, does not spill medicine, and can accurately evaluate the dosage. Summary of the invention

[0005] The purpose of the present invention is to provide a method for controlling the fruit hairs of sycamore trees in view of the deficiencies in the prior art, so as to solve the above problems existing in the prior art.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A method for controlling sycamore fruit hairs comprises the following steps:

[0008] a. Drill an injection hole at the first-order bifurcated branch of the sycamore tree, wherein the injection hole is drilled from the end of March to mid-April or from mid-April to early May each year;

[0009] b. Inserting a device for controlling the fruit hairs of the sycamore tree into the injection hole, the device for controlling the fruit hairs of the sycamore tree comprises a medicine, which is composed of the following components by mass percentage: 1%-5% ethephon, 0.5%-1.5% fructose, 0.05%-0.15% nicotinic acid, and the balance is water.

[0010] Furthermore, when the injection hole is drilled between the end of March and the middle of April each year, the agent is composed of the following components by mass percentage: 2% ethephon, 1% fructose, 0.1% nicotinic acid, and the balance is water.

[0011] Furthermore, when the injection hole is drilled between mid-April and early May each year, the agent is composed of the following components by mass percentage: 4% ethephon, 1% fructose, 0.1% nicotinic acid, and the balance is water.

[0012] Further, the injection hole has a diameter of 0.45-0.55 cm; and / or

[0013] The depth of the injection hole is 2-3 cm; and / or

[0014] The angle between the center line of the injection hole and the center line of the primary branch is 30-60°

[0015] Furthermore, the volume of the agent in one device for controlling the fruit hairs of sycamore is 20 ml, and the dosage (D) of each primary forked branch satisfies the following formula:

[0016] D = 2 + (d-20) / 5, where

[0017] D represents the total number of devices used to control the fruit hairs of the sycamore tree;

[0018] d represents the diameter of the primary branch in cm.

[0019] Furthermore, the device for controlling the fruit hairs of the sycamore tree also includes:

[0020] A containing part, having a containing cavity, wherein the medicine is contained in the containing cavity of the bottle body;

[0021] A working part, disposed on the top of the containing part, the working part having a hollow structure communicating with the containing cavity of the containing part; and

[0022] An opening and closing structure is arranged at the bottom of the accommodating portion, and is used to open or close the cavity of the accommodating portion; when the working portion is working, the opening and closing structure is in an open state;

[0023] Wherein, the accommodating portion and the working portion are integrally formed.

[0024] Furthermore, the top of the working part has a cutting scale line, and the device for controlling the fruit hairs of the sycamore tree is inserted into the injection hole, comprising:

[0025] Cutting the top of the workpiece at the cutting mark;

[0026] Inserting the working part from the top into the injection hole;

[0027] Open the cover.

[0028] Furthermore, the bottom of the accommodating portion has an opening, and the opening and closing structure includes:

[0029] an opening and closing portion, at least partially connected to the bottom of the receiving portion, and the opening and closing portion is used to cover or open the opening;

[0030] The blocking portion is arranged along the circumference of the opening and closing portion and protrudes from the surface of the opening and closing portion. The blocking portion cooperates with the opening. When the opening and closing portion covers the opening, the blocking portion abuts against the side wall of the opening.

[0031] Furthermore, the opening and closing structure further comprises:

[0032] The toggle portion is connected to the opening and closing portion and is located at the free end of the opening and closing portion.

[0033] Further, the size of the opening and closing portion is larger than the size of the opening; and / or

[0034] The aperture of the working part at the cutting mark is 0.4-0.5 cm; and / or,

[0035] The opening and closing structure is integrally formed with the accommodating portion.

[0036] The present invention adopts the above technical solution, and has the following technical effects compared with the prior art:

[0037] (1) The method for controlling the fruit hairs of the plane tree of the present invention is simple to operate, has a good fruit hair control effect, and the removal rate of the plane tree fruit is as high as 99%.

[0038] (2) The pesticide used in the present invention, whether it is a low concentration or a high concentration, causes little damage to the sycamore tree and is within an acceptable range.

[0039] (3) The low-concentration agent of the present invention is suitable for early use (late March to mid-April each year), and the high-concentration agent is suitable for late use (mid-April to early May each year), which makes up for the defect that not all of the agents can be used in the early stage.

[0040] (4) The device for controlling the fruit hairs of the sycamore tree used in the present invention can ensure that the medicine is smoothly injected into the sycamore tree without overflowing and can accurately calculate the dosage of each medicine through the working part located at the top of the receiving part and the opening and closing structure located at the bottom of the receiving part. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a structural schematic diagram of a device for controlling the fruit hairs of sycamore in the present invention from one viewing angle;

[0042] Figure 2 is a schematic structural diagram of the device for controlling the fruit hairs of the sycamore tree in another perspective of the present invention;

[0043] Figure 3 It is a structural schematic diagram of a device for controlling the fruit hairs of a sycamore tree in the present invention in a waiting state from one viewing angle;

[0044] Figure 4 It is a structural schematic diagram of another perspective of the device for controlling the fruit hairs of the sycamore tree in the present invention in a ready-to-work state, wherein the opening and closing structure is in an open state.

[0045] The accompanying drawings are denoted as follows:

[0046] 10. Receiving portion; 11. Grip portion; 12. Opening

[0047] 20. Working part; 21. Cut the scale line; 22. Liquid outlet;

[0048] 30. Opening and closing structure; 31. Opening and closing portion; 32. Blocking portion; 33. Driving portion. DETAILED DESCRIPTION

[0049] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0050] It should be understood that although the present invention uses terms indicating directions, such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", etc., to describe various exemplary structural parts and elements in the present invention, these terms are used here only for the purpose of convenience of description, and these terms are determined based on the exemplary orientations shown in the drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limiting.

[0051] It should be noted that the illustrations provided in the following embodiments are only used to illustrate the basic concept of the present invention in a schematic manner, and thus the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0052] While some exemplary embodiments of the present invention have been described for the purpose of illustration, it should be understood that the present invention may be implemented in other ways not specifically shown in the drawings.

[0053] The method for controlling the fruit hairs of sycamore trees in the present invention comprises the following steps:

[0054] a. Drill an injection hole at the first-order bifurcated branch of the sycamore tree, wherein the injection hole is drilled from the end of March to mid-April or from mid-April to early May each year;

[0055] b. Inserting a device for controlling the fruit hairs of the sycamore tree into the injection hole, the device for controlling the fruit hairs of the sycamore tree comprises a medicine, which is composed of the following components by mass percentage: 1%-5% ethephon, 0.5%-1.5% fructose, 0.05%-0.15% nicotinic acid, and the balance is water.

[0056] In step a, holes will be drilled at the first-level bifurcated branches of the sycamore tree instead of the main trunk or the second-level bifurcated branches. There are several considerations: trees are composed of xylem (trunk) and phloem (bark). The xylem is composed of vessels and cellulose. The vessels are empty and straight. The fruiting place is generally at the top and periphery of the branches. If the agent is injected on the main trunk of the sycamore tree, the agent will flow along the vessels and finally accumulate at the intersection of the main trunk and the bifurcated branches. It cannot reach the top or periphery of the branches, and the fruits there cannot be controlled; the second-level bifurcated branches are generally located at a higher position. If you choose to inject here, on the one hand, the operator's operation is dangerous, and on the other hand, no drug enters the branch from the first-level bifurcated branch to the second-level bifurcated branch, and the fruits on its periphery cannot be controlled. Therefore, drilling holes and injecting agents at the first-level bifurcated branches has the best effect on fruit hair control.

[0057] In step a, the diameter of the injection hole is 0.45-0.55 cm, preferably 0.5 cm; the depth of the injection hole is 2-3 cm; the angle between the center line of the injection hole and the center line of the primary branch branch is 30-60°, preferably 45°.

[0058] The injection holes in step a are drilled from the end of March to mid-April or from mid-April to early May each year. It should be understood that there are two time periods each year for controlling the fruit hairs of the sycamore. Considering that the sycamore is planted in a wide range and in large numbers, when it is too late to process it in the first time period (from the end of March to mid-April each year), the second time period (mid-April to early May each year) can be selected. This extends the processing time of the fruit hairs of the sycamore, making the processing of the fruit hairs of the sycamore more comprehensive and thorough.

[0059] The agent used in step b is composed of the following components by mass percentage: 1%-5% ethephon; 0.5%-1.5% fructose; 0.05%-0.15% nicotinic acid; and the balance is water.

[0060] Ethephon is a plant growth regulator. After being absorbed by the plant, it can release hormones in the body of the plane tree, thereby affecting the hormone level in the body of the plane tree, resulting in the situation that affects the fruiting of the plane tree. However, the disadvantage is that if used alone, it is not easily absorbed and utilized by the plant body, and it is difficult to play its role. Fructose can promote the absorption of ethephon by the plane tree. Nicotinic acid can make ethephon in the body of the plane tree in a chelated state, maintain the stability of the ethephon concentration, and promote plant health.

[0061] In step b, when the injection hole is drilled from the end of March to the middle of April each year, the agent is preferably composed of the following components by mass percentage: 2% ethephon, 1% fructose, 0.1% nicotinic acid, and the balance is water. Agents of this concentration are collectively referred to as first concentration agents or low concentration agents. The concentration of ethephon in the agent of this concentration is relatively low, which is suitable for early use (flowering period), that is, from the end of March to the middle of April each year, when the use of low concentration agents can achieve good results.

[0062] In step b, when the injection hole is drilled in mid-April to early May each year, the agent is preferably composed of the following components by mass percentage: 4% ethephon, 1% fructose, 0.1% nicotinic acid, and the balance is water. Agents of this concentration are collectively referred to as second concentration agents or high concentration agents. The concentration of ethephon in agents of this concentration is relatively high. If it is not used in the early stage, it can be used in the late stage (fruiting period), that is, mid-April to early May each year, and good fruit hair control results can still be achieved.

[0063] It should be understood that the above-mentioned fruit hair control agent only needs to be used once a year, that is, a low-concentration agent can be used from the end of March to mid-April each year, or a high-concentration agent can be used from mid-April to early May each year.

[0064] The device used in step b for controlling the fruit hairs of the sycamore tree has a structure as follows: Figure 1-2As shown, it includes a containing part 10, a working part 20 and an opening and closing structure 30. The main function of the containing part 10 is to contain a certain volume (20 ml) of the above-mentioned medicine for controlling the fruit hairs of the plane tree, and the main function of the working part 20 is to transport the medicine to the plane tree.

[0065] Continue to refer Figure 1-2 The receiving portion 10 has a cavity for receiving medicine. For easy holding, the outer wall of the receiving portion 10 is provided with a gripping portion 11. More specifically, the gripping portion 11 may be a circle of saw teeth arranged along the circumference of the outer wall of the receiving portion 10, may be a plurality of protrusions arranged on the outer wall of the receiving portion 10, or may be an anti-slip layer sleeved on the outer wall of the receiving portion 10. In this embodiment, the shape of the receiving portion 10 is a cylinder. It should be understood that the receiving portion 10 may also adopt other shapes, such as a cuboid, a cube, an irregular shape, etc., as long as it can achieve the function of containing medicine.

[0066] like Figure 1-3 As shown, the working part 20 is arranged at the top of the containing part 10, and the working part 20 has a hollow structure connected to the cavity of the containing part 10. The top of the working part 20 is sealed, and the medicine cannot flow out from the top of the working part 20 in the non-working state. The top of the working part 20 has a cutting scale line 21, for the operator to cut the top of the working part 20 at the cutting scale line to expose the liquid outlet 22. At this time, the working part 20 is in the working state, and the medicine can flow out from the liquid outlet 22. The working part 20 and the containing part 10 are an integrally formed structure. The working part 20 is a conical structure, and the aperture of the liquid outlet 22 is 0.4-0.5cm, preferably 0.45cm. The setting of the aperture of the liquid outlet 22, combined with the setting of the angle (30-60°) formed by the center line of the injection hole and the center line of the primary forked branch, can match the flow rate of the medicine with the transpiration tension of the plane tree, so that the medicine flows smoothly into the plane tree without overflowing.

[0067] refer to Figure 2 and 4 The bottom of the receiving part 10 has an opening 12, and an opening and closing structure 30 is arranged at the bottom of the receiving part 10 to cover or open the opening 12. The purpose of setting the opening and closing structure 30 is that when injecting medicine into the plane tree, opening the opening and closing structure 30 can ensure that the pressure inside and outside the cavity of the receiving part 10 is consistent, so that the medicine can be smoothly injected into the plane tree; when the working part 20 is not working, the opening and closing structure 30 is in a closed state to seal the receiving part 10. Continue to refer to Figure 2 and 4The opening and closing structure 30 includes an opening and closing portion 31 and a blocking portion 32. The opening and closing portion 31 is at least partially connected to the bottom of the receiving portion 10, so that the opening 12 can be opened or closed by rotating the opening and closing portion 31 along the connection. The size of the opening and closing portion 31 is preferably larger than the size of the opening 12 to completely cover the opening 12. The blocking portion 32 is arranged along the circumference of the opening and closing portion 31 and protrudes from the surface of the opening and closing portion 31. The size of the blocking portion 32 is smaller than the size of the opening and closing portion 31 and matches the size of the opening 12. When the opening and closing portion 31 covers the opening 12, the outer wall of the blocking portion 32 abuts against the side wall of the opening 12, thereby achieving the effect of sealing the opening 12. The material of the blocking portion 32 is softer than the material of the receiving portion 10 and the opening and closing portion 31. For easy operation, the opening and closing structure 30 further has a toggle portion 33, which is connected to the opening and closing portion 31 and is located at the free end of the opening and closing portion 31, that is, located at the opposite end where the opening and closing portion 31 is connected to the receiving portion 10. When the toggle portion 33 is toggled, the opening and closing structure 30 can be smoothly opened or closed. Preferably, the grip portion 11 and the receiving portion 10 are integrally formed, and the opening and closing structure 30 and the receiving portion 10 are integrally formed.

[0068] In combination with the above structure, in step b, the device for controlling the fruit hairs of the sycamore tree is inserted into the injection hole, specifically comprising: cutting the top of the working part 20 at the cutting scale line 21 to expose the liquid outlet 22, inserting the working part 20 from the top into the injection hole, and then opening the opening and closing structure 30.

[0069] In the above method for controlling the fruit hairs of the sycamore tree, preferably, the working part 20 is removed after the injection of the agent is completed, and a wound healing agent is applied as needed to promote wound healing.

[0070] The volume of the agent in the device for controlling the fruit hairs of the sycamore tree in step b is 20 ml, and the dosage (D) of each primary branch branch satisfies the following formula:

[0071] D = 2 + (d-20) / 5, where

[0072] D represents the total number of devices used to control the fruit hairs of the sycamore tree;

[0073] d represents the diameter of the primary branch in cm.

[0074] For example, if the diameter of a first-level forked branch is 25 cm, then D=2+(25-20) / 5=3, that is, the dosage of this first-level forked branch is 3 devices for controlling the fruit hairs of the sycamore tree as described above; for another example, if the diameter of a first-level forked branch is 32 cm, then D=2+(32-20) / 5=4.4, that is, the dosage of this first-level forked branch is 4.4 devices for controlling the fruit hairs of the sycamore tree as described above. In this case, 5 devices for controlling the fruit hairs of the sycamore tree need to be prepared, and then one of them can be used to pour out a dosage of 0.6 times the volume of the entire device.

[0075] The fruit hair control results and the effects of the agent on the plane tree in the present invention are shown in Tables 1-4 below:

[0076] Table 1: The relationship between the fruit drop rate and the number of days using low concentration pesticides

[0077]

[0078] Table 1 records the effect of controlling fruit hair by using a low-concentration agent (2% ethephon, 1% fructose, 0.1% niacin, and the balance is water) from the end of March to mid-April, wherein the number of days of medication is the number of days counted from the day the agent is used, the day of medication is counted as the first day (recorded as 1 day), followed by 2 days, 3 days, and so on; the fruit drop rate is the ratio of the number of fallen fruits to the total number of fruits before medication, with almost no fruit drop on the 2nd day of medication, and the fruit drop starts on the 3rd day, and the fruit drop rate is as high as 99% on the 14th day. It can be seen that the method used in this application has a very good effect in controlling fruit hair.

[0079] Table 2: The relationship between fruit drop rate and days of using high concentration pesticides

[0080]

[0081] Table 2 records the effect of controlling fruit hair by using a high concentration of pesticide (4% ethephon, 1% fructose, 0.1% niacin, and the balance is water) from mid-April to early May, wherein the number of days of medication is the number of days starting from the day the pesticide is used, the day of medication is counted as the first day (recorded as day 1), followed by 2 days, 3 days, and so on; the fruit drop rate is the ratio of the number of fallen fruits to the total number of fruits before medication, with almost no fruit drop on the 2nd day of medication, and the fruit drop starts on the 3rd day, and the fruit drop rate is as high as 99% on the 14th day. It can be seen that the method used in this application has a very good effect in controlling fruit hair.

[0082] Table 3: Effects of pesticides on plane tree leaves

[0083]

[0084] Table 3 shows the leaf area index, relative water content, chlorophyll, malondialdehyde, superoxidase, peroxidase, soluble protein, soluble sugar, proline content of the leaves of the plane trees after sampling 3 months after the application of the drug, and the endogenous hormones IAA and GA of the branches and buds were tested. The control group was not treated with drugs; the low-concentration drug group was treated with low-concentration drugs (2% ethephon, 1% fructose, 0.1% nicotinic acid, and the balance was water) from the end of March to mid-April; the high-concentration drug group was treated with high-concentration drugs (4% ethephon, 1% fructose, 0.1% nicotinic acid, and the balance was water) from mid-April to early May.

[0085] Leaf area index refers to the ratio of the total area of ​​plant leaves per unit land area to the land area. It is related to the density and structure (single or multi-layer) of vegetation, the biological characteristics of trees (branching angle, leaf attachment angle, shade tolerance, etc.) and environmental conditions (light, water, soil nutrient status), and is a comprehensive indicator of vegetation's utilization of light energy and canopy structure. As can be seen from the above table, the leaf area index of the low-concentration agent group is lower than that of the control group, and the leaf area index of the high-concentration agent group is lower than that of the control group, but there is no obvious difference compared with the control group. It can be seen that although the injection of drugs has a certain effect on the leaf area index, it does not cause obvious damage to the tree.

[0086] Leaf moisture content is the ratio of leaf moisture content to dry matter weight, and is an important indicator factor for measuring plant physiological state and water stress. Combining the data in the above table and on-site observations, the injection of drugs did not have a significant effect on the leaf moisture content, and there was no significant difference in moisture content compared with the control group.

[0087] Chlorophyll is a type of green pigment contained in higher plants and all other organisms that can perform photosynthesis. Combining the above table, it can be found that although the chlorophyll content of leaves will change after drug injection, there is no significant difference compared with the control group. At the same time, it can be found that the impact of high-concentration drug injection on chlorophyll content is greater than that of low-concentration drug injection.

[0088] When plant organs age or under adverse conditions, membrane lipid peroxidation often occurs. Malondialdehyde, as an organic compound, is one of its products. It is usually used as a lipid peroxidation indicator to indicate the degree of cell membrane lipid peroxidation and the strength of the plant's response to adverse conditions. Combined with the above table, it can be concluded that the injection of drugs will cause the malondialdehyde content of the plane tree leaves to increase, but compared with the control, there is no significant difference in the malondialdehyde content in the plane tree leaves injected with drugs, indicating that the injection will not significantly cause lipid peroxidation of the leaf cells and will not cause obvious damage to the leaves.

[0089] Superoxide dismutase is an antioxidant metalloenzyme existing in organisms. It can catalyze the dismutation of superoxide anion free radicals to generate oxygen and hydrogen peroxide, and plays a vital role in the balance of oxidation and antioxidant in the body. In higher plants, superoxide dismutase acts as an antioxidant and protects cell components from oxidation by reactive oxygen. Therefore, the activity of superoxide dismutase can better reflect the stress resistance of the variety. The higher the superoxide dismutase activity, the stronger the drought resistance of the plant. From the above table, it can be found that when injected with a low concentration of the agent, the superoxide dismutase activity is lower than that of the control group, and the high concentration injection is lower than the low concentration injection. It can be seen that high concentration injection will cause greater oxidative stress to the leaves than low concentration injection, and high concentration injection will cause greater damage to the leaves than low concentration injection.

[0090] Peroxidase is a marker enzyme of peroxisomes and a type of oxidoreductase that can catalyze many reactions. The main function of peroxidase in plants is to participate in photorespiration and oxidize glycolic acid, a byproduct of photosynthesis, into glyoxylic acid and hydrogen peroxide. From the table above, it can be found that the peroxidase activity in the high-concentration group is lower than that in the low-concentration group. Peroxidase participates in photorespiration and can also remove excess reactive oxygen in leaf cells, reducing the damage of reactive oxygen to leaves. This shows that high-concentration injection will have a greater inhibitory effect on leaf photorespiration and reactive oxygen removal, thereby causing slightly greater damage to leaves than low-concentration injection.

[0091] Soluble proteins are important nutrients and osmotic regulators. Their increase and accumulation can improve the water retention capacity of cells and protect the cell's vital substances and biofilms. Therefore, they are often used as one of the indicators for screening resistance. When plants are under stress, they can participate in balancing the osmotic potential in the plant body and reduce the damage to the plant caused by adversity. From the table above, it can be seen that the soluble protein content in the low-concentration group is higher than that in the high-concentration group, indicating that the damage to the resistance of leaves caused by injecting high-concentration drugs is slightly higher than that caused by injecting low-concentration drugs.

[0092] Soluble sugars are dissolved in biological cells and contain most monosaccharides and oligosaccharides (glucose, fructose, sucrose, etc.). They play an important role in the life cycle of plants. Soluble sugars are the basis of plant metabolism and an important source of energy for plants during their growth and development. They can provide energy and metabolic intermediates for plant growth and development, and promote plant seed germination and early seedling development. Injecting drugs will reduce the soluble sugar content in the leaves. The effect of injecting high-concentration drugs on the leaves is slightly higher than that of injecting low-concentration drugs, but neither will have a significant effect on the leaves.

[0093] Proline is one of the components of plant protein and can be widely present in the plant body in a free state. The proline content in the plant body reflects the stress resistance of the plant to a certain extent. Varieties with strong drought resistance tend to accumulate more proline. In addition, since proline is extremely hydrophilic, it can stabilize the metabolic process in the protoplasm colloid and tissue, thereby lowering the freezing point and preventing cell dehydration. As can be seen from the above table, the injection of drugs has little effect on the proline content in the leaves.

[0094] Table 4: Effects of pesticides on sycamore buds

[0095] Test items Auxin (μg / L) Gibberellic acid (pg / mL) Control group 82.58 433.05 Low concentration group 69.04 519.96 High concentration group 64.18 549.33

[0096] The results of endogenous hormone detection in sycamore buds are shown in Table 4 above. Drug injection will affect the endogenous hormones in buds. The gibberellin content after drug injection was higher than that in the control group, and the gibberellin content in the buds was slightly higher than that in the high-concentration injection; the auxin content after drug injection was lower than that in the control group, and the auxin content in the buds was slightly higher than that in the high-concentration injection. In general, different injection concentrations will not significantly affect the changes in auxin and gibberellin content, which shows that although drug injection will cause changes in the endogenous hormone content in sycamore buds, these changes are within an acceptable range and do not cause significant changes.

[0097] It can be seen that the use of low-concentration agents in late March to mid-April and the use of high-concentration agents in mid-April to early May can both have a good effect in controlling fruit hair, and the effects on the leaves and branches of sycamore are within an acceptable range. Considering that the impact of using low-concentration agents in late March to mid-April will be lower than that of using high-concentration agents in mid-April to early May, therefore, if conditions permit, it is preferred to use low-concentration agents in late March to mid-April.

[0098] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for controlling sycamore fruit hairs, characterized in that: The steps include: a. Drill an injection hole at the first-order bifurcated branch of the sycamore tree, wherein the injection hole is drilled from the end of March to mid-April or from mid-April to early May each year; b. inserting a device for controlling the fruit hairs of the sycamore tree into the injection hole, wherein the device for controlling the fruit hairs of the sycamore tree comprises a medicine, and when the injection hole is punched from the end of March to the middle of April each year, the medicine is composed of the following components by mass percentage: 2% ethephon, 1% fructose, 0.1% nicotinic acid, and the balance is water; when the injection hole is punched from the middle of April to the beginning of May each year, the medicine is composed of the following components by mass percentage: 4% ethephon, 1% fructose, 0.1% nicotinic acid, and the balance is water; The volume of the drug in one device for controlling the fruit hairs of sycamore is 20 ml, and the drug dosage D for each primary forked branch satisfies the following formula: D=2+(d-20) / 5, where D represents the total number of devices used to control the fruit hairs of the sycamore tree; d represents the diameter of the first-order bifurcated branch in cm; The injection hole has a diameter of 0.45-0.55 cm; The depth of the injection hole is 2-3 cm; The angle formed between the center line of the injection hole and the center line of the primary branch tree is 30-60°.

2. The method for controlling sycamore fruit hairs according to claim 1, characterized in that: The device for controlling the fruit hairs of sycamore tree comprises: A containing portion (10) having a containing cavity, wherein the medicine is contained in the containing cavity of the containing portion (10); A working portion (20) is arranged on the top of the containing portion (10), and the working portion (20) has a hollow structure that is communicated with the containing cavity of the containing portion (10); and an opening and closing structure (30) disposed at the bottom of the accommodating portion (10) and used for opening or closing the cavity of the accommodating portion (10); when the working portion (20) is working, the opening and closing structure (30) is in an open state; Wherein, the accommodating portion (10) and the working portion (20) are integrally formed.

3. The method for controlling sycamore fruit hairs according to claim 2, characterized in that: The top of the working part (20) is provided with a cutting scale line (21), and the device for controlling the fruit hairs of the sycamore tree is inserted into the injection hole, comprising: Cutting the top of the working portion (20) at the cutting mark (21); Inserting the working part (20) from the top end into the injection hole; Open the opening and closing structure (30).

4. The method for controlling the fruit hairs of Plane trees according to claim 3, characterized in that: The bottom of the accommodating portion (10) has an opening (12), and the opening and closing structure (30) comprises: an opening and closing portion (31), at least partially connected to the bottom of the accommodating portion (10), the opening and closing portion (31) being used to cover or open the opening (12); A blocking portion (32) is arranged along the circumference of the opening and closing portion (31) and protrudes from the surface of the opening and closing portion (31); the blocking portion (32) cooperates with the opening (12); when the opening and closing portion (31) covers the opening (12), the blocking portion (32) abuts against the side wall of the opening (12).

5. The method for controlling sycamore fruit hairs according to claim 4, characterized in that: The opening and closing structure (30) further comprises: The toggle portion (33) is connected to the opening and closing portion (31) and is located at the free end of the opening and closing portion (31).

6. The method for controlling fruit hairs of Plane trees according to claim 5, characterized in that: The size of the opening and closing portion (31) is larger than the size of the opening (12); and / or The aperture of the working portion (20) at the cutting mark is 0.4-0.5 cm; and / or, The opening and closing structure (30) and the accommodating portion (10) are integrally formed.

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