Physical method and device for preventing and treating diseases and pests of mulberry seedlings and mulberry fields by high temperature flame

Abstract

The application discloses a physical method and device for preventing and treating diseases and pests of mulberry seedlings and mulberry gardens by high-temperature flame, and particularly relates to the disinfection and sterilization of mulberry seedlings before planting, wherein the mulberry seedlings are required to be defoliated and pruned, the pruning position is 30-40 cm away from the root neck, and the whole body of the mulberry seedling is disinfected and sterilized by the high-temperature flame, so that the prevention and treatment of diseases and pests before planting of the mulberry seedling are completed; for the disinfection and sterilization of the mulberry garden, the mulberry garden is required to be pruned and cleaned, the height of the tree stump after pruning is 60-80 cm, and the tree stump and the surrounding ground are disinfected and sterilized by the high-temperature flame, so that the prevention and treatment of diseases and pests of the mulberry garden are completed. The device comprises a first flame spraying device and a second flame spraying device, the first flame spraying device is used for uniformly disinfecting and sterilizing the mulberry seedling plant, and the second flame spraying device is used for uniformly disinfecting and sterilizing the mulberry garden plant. The high-temperature flame can effectively prevent and treat diseases and pests of the mulberry seedling or the seedling of a woody plant similar to the mulberry.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of mulberry disease and pest control. More specifically, the present application relates to a physical method for controlling diseases and pests of mulberry seedlings and mulberry gardens by using high-temperature flame. BACKGROUND

[0002] In recent years, with the development of diversified mulberry industry, higher requirements have been put forward for the quality of mulberry leaves and mulberry fruits in the field of production and application. To ensure the quality of mulberry production materials, disease and pest control in mulberry gardens is the key, and improving the disease and pest control technology in mulberry gardens is the premise. For a long time, the disease and pest control in mulberry gardens has been blindly following the tradition and relying on chemical pesticides, which not only kills a large number of natural enemies and makes diseases and pests resistant, but also causes the continuous deterioration of the ecological environment of mulberry gardens and the reduction of the quality of mulberry leaves and mulberry fruits. At the same time, the gradually accumulated pesticide residues not only poison silkworms and cause difficulties in seed production and seed preservation, but also greatly affect the processing and utilization of mulberry resources materials. Therefore, reducing the use of chemical pesticides will fundamentally improve the quality of mulberry production materials and effectively improve their utilization rate, which has important guarantee and promoting significance for the development of diversified and high-quality sericulture industry. SUMMARY

[0003] An object of the present application is to solve at least the above problems and provide at least the advantages to be explained later.

[0004] An object of the present application is to provide a physical method for controlling diseases and pests of mulberry seedlings and mulberry gardens by using high-temperature flame, which uses the high-temperature action of physical flame to kill diseases, pests and harmful organisms on the tree body, and eliminates the residues and air pollution hazards caused by the use of chemical pesticides.

[0005] In order to achieve these objects and other advantages of the present application, a physical method for controlling diseases and pests of mulberry seedlings and mulberry gardens by using high-temperature flame is provided. Specifically, for the disinfection of mulberry seedlings before planting, the mulberry seedlings are required to be defoliated and pruned, the pruning is 30-40 cm away from the root neck, and the high-temperature flame is used to disinfect the whole body of the mulberry seedlings, thereby completing the control of diseases and pests of the mulberry seedlings.

[0006] For the disinfection of mulberry gardens, the mulberry gardens are required to be pruned and cleaned, the height of the tree stump after pruning is 60-80 cm, and the tree shape is fist-shaped. The high-temperature flame is used to disinfect the tree stump and the surrounding ground, thereby completing the control of diseases and pests of the mulberry gardens.

[0007] Preferably, the high-temperature flame is generated by burning petroleum liquefied gas or coal gas, and the height of the flame is ≥15 cm.

[0008] Preferably, the branches and trunks of the mulberry seedlings are without leaves; and the whole plant state after pruning the mulberry gardens is required to be in the slow growth period or dormancy period, without new buds and new leaves.

[0009] Preferably, the mulberry field is killed in summer, after pruning and cleaning the field in winter.

[0010] Preferably, the pruned branches are removed from the mulberry field after pruning, and the fallen leaves and weeds in the field are cleaned up.

[0011] Preferably, the mulberry field with serious diseases is disinfected twice, and the second disinfection direction is opposite to the first disinfection direction.

[0012] Preferably, the specific disinfection method for the mulberry plants is to disinfect each mulberry plant from top to bottom and front to back, and finally to focus on disinfecting the joint between the fist and the stem and root.

[0013] Preferably, the forward disinfection from top to bottom takes 2-3 seconds, the reverse disinfection from bottom to top takes 2-3 seconds, and the disinfection around the fist or the joint between the stem and the root takes 1-3 seconds.

[0014] The fire spraying device for the above-mentioned physical method of using high-temperature flame to control diseases and pests in mulberry seedlings and mulberry fields comprises a first fire spraying device and a second fire spraying device, and the first fire spraying device is used to uniformly disinfect mulberry seedling plants; and the second fire spraying device is used to uniformly disinfect mulberry field plants.

[0015] Preferably, the first fire spraying device comprises:

[0016] The front disinfection mechanism comprises a first driving assembly and a first fire spraying assembly, the first driving assembly is arranged obliquely downward, the first fire spraying assembly is arranged above the first driving assembly, the first driving assembly comprises a plurality of first driving rollers, the plurality of first driving rollers are arranged in parallel, and a first gap is formed between adjacent two first driving rollers, the first fire spraying assembly comprises at least two groups of first fire spraying mechanisms, the first fire spraying mechanisms are arranged at intervals along the movement direction of the first driving assembly, each first fire spraying mechanism comprises a plurality of first fire spraying heads, the plurality of first fire spraying heads are arranged along the width direction of the first driving rollers, and the upper end and the lower end of the first fire spraying assembly are provided with first fireproof plates;

[0017] The back disinfection mechanism comprises a second driving assembly and a second fire spraying assembly, the second driving assembly is arranged obliquely upward, the second fire spraying assembly is arranged above the second driving assembly, the second driving assembly comprises a plurality of second driving rollers, the plurality of second driving rollers are arranged in parallel, and a second gap is formed between adjacent two second driving rollers, the second fire spraying assembly comprises at least two groups of second fire spraying mechanisms, the second fire spraying mechanisms are arranged at intervals along the movement direction of the second driving assembly, each second fire spraying mechanism comprises a plurality of second fire spraying heads, the plurality of second fire spraying heads are arranged along the width direction of the second driving rollers, and the upper end and the lower end of the second fire spraying assembly are provided with second fireproof plates;

[0018] The receiving plate is located at the end of the first drive assembly and at the beginning of the second drive assembly, and is located below the first drive assembly and the second drive assembly.

[0019] A swing mechanism includes a swing rod, a swing motor, and a telescopic rod, wherein the swing rod is connected to the swing motor, and the telescopic rod is disposed on the swing rod;

[0020] When the mulberry seedling is driven to the end of the first drive assembly, one end of the seedling falls onto the receiving plate, the telescopic rod extends, and under the swing action of the swing motor, it passes through the first gap to move the mulberry seedling to the reverse spraying mechanism. The telescopic rod retracts, and the swing motor drives the swing rod to reset in preparation for moving the next batch of mulberry seedlings.

[0021] The present invention has at least the following beneficial effects:

[0022] First, this invention utilizes high-temperature flames for pest and disease control in mulberry orchards, effectively treating mulberry seedlings or similar woody plants before planting or controlling pests and diseases in the plantation. This invention focuses on harmless physical control techniques, using mulberry trees as the research object. Addressing the long-standing problem of severe pesticide residues in mulberry trees, it conducts multiple experimental studies targeting serious diseases and pests in production, resulting in significant control over their occurrence and damage. This invention is highly operable, simple, and easy to master, making it suitable for widespread use in production. Based on a thorough understanding of disease development patterns and pest life cycle characteristics, this invention makes control more planned and targeted, suitable for wider application in more similar woody plants, and possesses high application value and market potential.

[0023] Secondly, this invention can be used to control pathogens, larvae, and eggs that overwinter in branches, bark, leaves, stem bases, or crevices. Diseases such as mulberry gray plaster disease, mulberry bacterial black rot, mulberry powdery mildew, mulberry leaf blight, mulberry brown spot, and mulberry red rust mainly overwinter on branches and old leaves, damaging branches and leaves; and pests such as mulberry lice, mulberry weevils, mulberry loopers, beet armyworms, mulberry caterpillars, wild silkworms, mulberry leeches, mulberry borers, sand borers, red-bellied tussock moths, mulberry thrips, mulberry psyllids, mulberry leafhoppers, mulberry scale insects, mulberry shoot bark beetles, yellow-spotted longhorn beetles, and snails mainly gather on trunks or branches to lay eggs.

[0024] Third, this invention utilizes a first flame-spraying device to disinfect mulberry seedlings, reducing the chance of errors and omissions that occur during manual flame-spraying, resulting in more uniform disinfection and better control of disinfection time, avoiding over-disinfection that could burn the seedlings. The second flame-spraying device can complete disinfection of a tree stump of a certain diameter in a single application, improving efficiency and ensuring more uniform disinfection.

[0025] Other advantages, objects, and features of the application will be apparent to those skilled in the art from the following specification. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the first fire spraying device of the application.

[0027] Figure 2 It is a structural schematic diagram of the second fire spraying device of the application.

[0028] Figure 3 It is a structural schematic diagram of the installation of the driving handle and the opening and closing adjusting assembly on the fire spraying rod.

[0029] 1, front disinfecting mechanism; 2, back disinfecting mechanism; 3, first driving assembly; 4, first fire spraying assembly; 5, first gap; 6, first fireproof plate; 7, second driving assembly; 8, second fire spraying assembly; 9, second fireproof plate; 10, mulberry seedling; 11, receiving plate; 12, swing rod; 13, telescopic rod; 14, fire spraying rod; 15, left fire spraying assembly; 16, right fire spraying assembly; 17, connecting piece; 18, sleeving rod; 19, positioning plate; 20, reset spring; 21, driving handle; 22, second driving line; 23, guide wheel; 24, first driving line; 25, sliding cavity; 26, positioning pin; 27, positioning tooth; 28, hinged plate; 29, second hinged rod; 30, first hinged rod. DETAILED DESCRIPTION

[0030] The application will be further described in detail below with reference to the drawings, so that those skilled in the art can implement the application according to the description and the drawings.

[0031] It should be understood that the terms such as "have", "contain", and "include" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0032] It should be noted that the experimental methods described in the following embodiments are conventional methods, and the reagents and materials are commercially available unless otherwise specified. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "arrangement" should be understood broadly, for example, they can be fixedly connected, arranged, or detachably connected, arranged, or integrally connected, arranged. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. The orientations or positional relationships indicated by the terms "transverse", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only intended to facilitate the description of the present application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0033] A physical method for preventing and treating diseases and pests of mulberry seedlings and mulberry leaves by using high-temperature flame. Specifically, for the sterilization and killing of mulberry seedlings before planting, the mulberry seedlings are required to be defoliated and pruned, and the pruning is 30-40 cm away from the root neck. The high-temperature flame is used to sterilize and kill the whole mulberry seedling, thereby completing the prevention and treatment of diseases and pests of the mulberry seedling.

[0034] For the sterilization and killing of mulberry gardens, the mulberry gardens are required to be pruned and cleaned, and the tree shape is fist-shaped. After pruning, the height of the tree stump is 60-80 cm. The high-temperature flame is used to sterilize and kill the tree stump and the surrounding ground, thereby completing the prevention and treatment of diseases and pests of the mulberry garden.

[0035] In the technical solution, the existing ordinary fire gun can be used. After connecting with the external gas source and igniting, the mulberry seedlings and the tree stumps in the mulberry garden can be sprayed and killed.

[0036] In another technical solution, the high-temperature fuel flame is the flame generated by burning of liquefied petroleum gas or coal gas, and the flame height is greater than or equal to 15 cm.

[0037] In another technical solution, the branches and trunks of the mulberry seedlings have no leaves. The whole plant state required for the sterilization and killing of the mulberry garden is that the plant growth enters the slow growth period or the dormant period, and there is no new bud and no new leaf growth.

[0038] In another technical solution, the sterilization and killing of the mulberry garden is carried out after pruning and cleaning the garden in summer and winter.

[0039] In another technical solution, after pruning the mulberry garden, the pruned branches are moved out of the mulberry garden, and the fallen leaves and weeds in the mulberry garden are cleaned up.

[0040] In another technical solution, for the mulberry garden with serious diseases, the mulberry garden is sterilized and killed twice, and the direction of the second sterilization and killing is opposite to that of the first sterilization and killing.

[0041] In another technical solution, the specific killing method of mulberry plants is to kill from top to bottom and from front to back for each mulberry, and finally to focus on killing the hidden bacteria and eggs at the fist place and the joint of stem and root.

[0042] In another technical solution, the forward killing from top to bottom takes 2-3s, the reverse killing from bottom to top takes 2-3s, and the surrounding killing at the fist place or the joint of stem and root takes 1-3s.

[0043] The fire spraying device for the above-mentioned physical method of using high-temperature flame to prevent and control diseases and pests of mulberry seedlings and mulberry gardens comprises a first fire spraying device and a second fire spraying device, and the first fire spraying device is used to uniformly kill mulberry seedlings, and the second fire spraying device is used to uniformly kill mulberry plants.

[0044] In the technical solution, the first fire spraying device is used to spray and kill mulberry seedlings, which can reduce the mistakes in manual spraying and killing, make the killing more uniform, and more reasonably control the killing time to avoid excessive killing and burning of mulberry seedlings due to improper time control. The second fire spraying device can complete the killing of a certain diameter of tree stump in one killing, improve the killing efficiency, and make the killing more uniform, avoiding the missing killing or repeated killing when using the traditional fire gun.

[0045] In another technical solution, as shown in Figure 1 The first fire spraying device comprises:

[0046] The front killing mechanism 1 comprises a first driving assembly 3 and a first fire spraying assembly 4, the first driving assembly 3 is inclined downward, the first fire spraying assembly 4 is arranged above the first driving assembly 3, the first driving assembly 3 comprises a plurality of first driving rollers, a plurality of the first driving rollers are arranged in parallel, and a first gap 5 is arranged between adjacent two first driving rollers, the first fire spraying assembly 4 comprises at least two groups of first fire spraying mechanisms, the first fire spraying mechanisms are arranged at intervals along the movement direction of the first driving assembly 3, the first fire spraying mechanism comprises a plurality of first fire spraying heads, a plurality of the first fire spraying heads are arranged along the width direction of the first driving roller, and the upper end and the lower end of the first fire spraying assembly 4 are provided with first fireproof plates 6;

[0047] The back surface disinfecting mechanism 2 comprises a second driving assembly 7 and a second flame spraying assembly 8. The second driving assembly 7 is arranged obliquely upward. The second flame spraying assembly 8 is arranged above the second driving assembly 7. The second driving assembly 7 comprises a plurality of second driving rollers. The second driving rollers are arranged in parallel. There is a second gap between two adjacent second driving rollers. The second flame spraying assembly 4 comprises at least two groups of second flame spraying mechanisms. The second flame spraying mechanisms are arranged in intervals along the movement direction of the second driving assembly 7. The second flame spraying mechanism comprises a plurality of second flame spraying heads. The second flame spraying heads are arranged along the width direction of the second driving roller. The upper end and the lower end of the second flame spraying assembly 8 are provided with second fireproof plates 9.

[0048] The receiving plate 11 is located at the end of the first driving assembly 3 and at the beginning of the second driving assembly 7. The receiving plate 11 is located below the first driving assembly 3 and the second driving assembly 7.

[0049] The swinging mechanism comprises a swinging rod 12, a swinging motor and an extension rod 13. The swinging rod 12 is connected with the swinging motor. The extension rod 13 is arranged on the swinging rod 12.

[0050] In the technical scheme, when the mulberry seedlings 10 are driven by the first driving assembly 3 to the end of the first driving assembly 3, one end of the mulberry seedlings 10 falls on the receiving plate 11. The extension rod 13 is elongated. The extension rod 13 passes through the first gap 5 under the swinging action of the swinging motor to move the mulberry seedlings 10 to the reverse surface spraying mechanism. The extension rod 13 is retracted. The swinging motor drives the swinging rod 12 to reset to prepare for moving the next batch of mulberry seedlings 10.

[0051] In the technical scheme, the first driving assembly and the second driving assembly can be installed and fixed by a conventional fixed frame. The first driving roller and the second driving roller can be driven by a driving device, such as a driving motor. The first flame spraying head and the second flame spraying head are products of the prior art. The first flame spraying head and the second flame spraying head can be installed in an array above the first driving assembly 3 and the second driving assembly 7. In some technical schemes, the first flame spraying heads on two adjacent groups of first flame spraying mechanisms are arranged in a staggered manner to make the disinfection more uniform. The second flame spraying heads of two adjacent groups of second flame spraying mechanisms are also arranged in a staggered manner to make the disinfection more uniform. The receiving plate 11 and the swinging mechanism are fixedly connected with the fixed frame that fixes the first driving assembly 3 and the second driving assembly 7 through fixing rods and other components to achieve their functions. The extension rod can be an electric extension rod or a hydraulic extension rod.

[0052] In another technical scheme, the second flame spraying device comprises:

[0053] The flame spraying rod 14 is a hollow tubular structure. One end of the flame spraying rod 14 is provided with a handle.

[0054] A third fire spouting assembly, which comprises a left fire spouting assembly 15 and a right fire spouting assembly 16, the left fire spouting assembly 15 and the right fire spouting assembly 16 are both arc-shaped structures, the left fire spouting assembly 15 and the right fire spouting assembly 16 are hinged to a connecting piece 17, a sleeving rod 18 is fixedly arranged on the connecting piece 17, and the sleeving rod 18 is sleeved on the other end of the fire spouting rod 14;

[0055] The left fire spouting assembly 15 and the right fire spouting assembly 16 both comprise:

[0056] A mounting plate;

[0057] A mounting rod, which is arc-shaped and comprises upper and lower mounting rods arranged in parallel;

[0058] A plurality of third fire spouting heads are arranged on the upper mounting rod at equal intervals and obliquely downward;

[0059] A plurality of fourth fire spouting heads are arranged on the lower mounting rod at equal intervals and obliquely upward, and the distance between the third fire spouting heads and the fourth fire spouting heads is 10 cm;

[0060] The mounting plate of the left fire spouting assembly 15 and the mounting plate of the right fire spouting assembly 16 are hinged to the connecting piece 17;

[0061] An opening and closing adjusting assembly, which comprises a positioning assembly, a hinged piece, a reset spring 20, a driving handle 21, a first driving line 24 and a second driving line 22;

[0062] The positioning assembly comprises a sliding cavity 25, a positioning plate 19 and a positioning pin 26, the sliding cavity 25 is arranged at one end of the fire spouting rod 14, the positioning plate 19 is slidably arranged in the sliding cavity 25, a plurality of positioning teeth 27 are arranged on the positioning plate 19, a pin shaft hole is arranged on the fire spouting rod 14, the positioning pin 26 penetrates through the pin shaft hole and penetrates into the positioning teeth 27 to fix the positioning plate 19, one end of the first driving line 24 is fixedly connected with the sleeving rod 18, and the other end is fixedly connected with the positioning plate 19;

[0063] The hinged piece comprises a hinged plate 28, a first hinged rod 30 and a second hinged rod 29, the hinged plate 28 is arranged at the other end of the fire spouting rod 14, one end of the first hinged rod 30 is fixedly connected with the third fire spouting assembly, the other end is hinged to the second hinged rod 29, and the second hinged rod 29 is hinged to the hinged plate 28;

[0064] The reset spring 20 is sleeved on the sleeving rod 18, one end of the reset spring 20 is fixedly connected with the hinged plate 28, and the other end is fixedly connected with the connecting piece 17;

[0065] The driving handle 21 is rotatably arranged at one end of the flame jet rod 14, the flame jet rod 14 is provided with a wire hole, the inside of the flame jet rod 14 is provided with a guide wheel 23, the position of the guide wheel 23 is opposite to the position of the wire hole, one end of the second driving wire 22 is fixedly connected with the driving handle 21, and the second driving wire 22 is fixedly connected with the positioning plate 19 after being wound around the guide wheel 23.

[0066] When the driving handle 21 is close to the handle, the sleeve joint rod 18 is driven to slide into the inside of the sliding cavity 25 through the second driving wire 22, the positioning plate 19 and the first driving wire 24, the reset spring 20 is pressed, the third flame jet assembly is driven by the hinge to open the included angle between the left flame jet assembly 15 and the right flame jet assembly 16 to adapt to the disinfection of the rough stem mulberry seedling, the positioning pin 26 is inserted into the pin shaft hole and the tooth groove between the positioning teeth 27, and the fixation of the included angle between the left flame jet assembly 15 and the right flame jet assembly 16 is realized.

[0067] In the technical scheme, the left flame jet assembly 15 and the right flame jet assembly 16 can increase the disinfection area, and the hinge structure design of the left flame jet assembly 15 and the right flame jet assembly 16 can adapt to the tree stumps of certain diameters. For the tree stumps with large diameters, the included angle of the left flame jet assembly 15 and the right flame jet assembly 16 can be opened through the driving handle, and the included angle of the two is fixed by using the positioning pin 26, while for the tree stumps with small diameters, the positioning pin 26 can be taken out, the included angle of the left flame jet assembly 15 and the right flame jet assembly 16 is adjusted, and then the positioning pin is inserted into the tooth groove between the positioning teeth 27 to realize the fixation of the included angle of the left flame jet assembly 15 and the right flame jet assembly 16. When the diameters of the tree stumps in the mulberry garden vary greatly, the second flame jet device can be operated by two hands, that is, the positioning pin is taken out, the right hand holds the handle and controls the driving handle, the left hand holds the flame jet rod in front of the handle, the right hand is used to drive the driving handle in real time to control the angle of the included angle of the left flame jet assembly 15 and the right flame jet assembly 16. The driving handle 21 can be similar to the driving handle on the handlebar of a bicycle. The inclination of the third flame jet head and the fourth flame jet head can make the burning flame enter the bottom of the tree bark along the gap formed on the tree bark to complete the disinfection of the pests hiding in the tree bark.

[0068] <Embodiment 1>

[0069] A physical method for preventing and treating pests and diseases of mulberry seedlings and mulberry gardens by using high-temperature flame, specifically, for disinfection of mulberry seedlings before planting, the mulberry seedlings are required to be leafless and pruned, the pruning position is 40 cm away from the root neck, and the high-temperature flame is used to disinfect the whole body of the mulberry seedlings, that is, to complete the prevention and treatment of pests and diseases of the mulberry seedlings.

[0070] For disinfection of mulberry gardens, the mulberry gardens are required to be cleared by cutting branches, and the height of the tree stumps after cutting branches is 80 cm, and the high-temperature flame is used to disinfect the tree stumps and the surrounding ground, that is, to complete the prevention and treatment of pests and diseases of the mulberry gardens.

[0071] Further, the high-temperature flame is a flame generated by burning petroleum liquefied gas or coal gas, and the flame height is greater than or equal to 15 cm.

[0072] Further, the branches of the mulberry seedlings are free of leaves; and the overall plant state of the mulberry garden is required to be in a slow growth period or a dormant period, that is, free of new shoots and new leaves.

[0073] Further, the mulberry garden is killed in summer or winter after pruning and cleaning the garden.

[0074] Further, after pruning the mulberry garden, the pruned branches are removed from the mulberry garden, and the fallen leaves and weeds in the mulberry garden are cleaned up.

[0075] Further, the mulberry garden with serious diseases can be disinfected twice, and the second disinfection direction is opposite to the first disinfection direction.

[0076] Further, the specific disinfection method for the plants in the mulberry garden is to disinfect each mulberry plant in an up-down and front-back sequence, and finally to focus on disinfecting the fist part and the joint part of the stem and the root.

[0077] Further, the front disinfection from top to bottom takes 3 seconds, the back disinfection from bottom to top takes 3 seconds, and the disinfection around the fist part or the joint part of the stem and the root takes 1 second.

[0078] In the technical solution, the high-temperature flame can be generated by a conventional handheld flame gun using petroleum liquefied gas as fuel. The mulberry seedlings are spread and placed on the ground, and the high-temperature flame is used to disinfect the mulberry seedlings.

[0079] <Embodiment 2>

[0080] A physical method for preventing and treating diseases and pests in mulberry seedlings and mulberry gardens by using high-temperature flame is different from the method provided in <Embodiment 1>, and the difference lies in that a first flame spraying device is used to generate a high-temperature flame to spray and disinfect the mulberry seedlings 10, as shown in Figure 1 The first flame spraying device comprises:

[0081] The front disinfection mechanism 1 comprises a first driving assembly 3 and a first flame spraying assembly 4. The first driving assembly 3 is arranged obliquely downward, and the first flame spraying assembly 4 is arranged above the first driving assembly 3. The first driving assembly 3 comprises a plurality of first driving rollers, and the adjacent two first driving rollers are arranged with a first gap 5. The first flame spraying assembly 4 comprises at least two groups of first flame spraying mechanisms, and the first flame spraying mechanisms are arranged at intervals along the movement direction of the first driving assembly 3. Each first flame spraying mechanism comprises a plurality of flame spraying heads arranged along the width direction of the first driving roller. The upper end and the lower end of the first flame spraying assembly 4 are provided with first fireproof plates 6.

[0082] The back surface disinfecting mechanism 2 comprises a second driving assembly 7 and a second fire spraying assembly 8, the second driving assembly 7 is arranged upwardly, the second fire spraying assembly 8 is arranged above the second driving assembly 7, the second driving assembly 7 comprises a plurality of second driving rollers, the second driving rollers are arranged in parallel, and a second gap is arranged between two adjacent second driving rollers, the second fire spraying assembly 8 comprises at least two groups of second fire spraying mechanisms, the second fire spraying mechanisms are arranged in intervals along the movement direction of the second driving assembly 7, the second fire spraying mechanisms comprise a plurality of second fire spraying heads, the second fire spraying heads are arranged along the width direction of the second driving rollers, and the upper end and the lower end of the second fire spraying assembly 8 are both provided with a second fireproof plate 9;

[0083] The receiving plate 11 is arranged at the end of the first driving assembly 3 and at the beginning of the second driving assembly 7, and the receiving plate 11 is arranged below the first driving assembly 3 and the second driving assembly 7;

[0084] The swinging mechanism comprises a swinging rod 12, a swinging motor and an extension rod 13, the swinging rod 12 is connected with the swinging motor, and the extension rod 13 is arranged on the swinging rod 12;

[0085] When the mulberry seedlings 10 are driven by the first driving assembly 3 to the end of the first driving assembly 3, one end of the mulberry seedlings 10 falls on the receiving plate 11, the extension rod 13 is elongated, and the extension rod 13 passes through the first gap 5 under the swinging action of the swinging motor to move the mulberry seedlings 10 to the back surface spraying mechanism, the extension rod 13 is retracted, and the swinging motor drives the swinging rod 12 to reset to prepare for moving the next batch of mulberry seedlings 10.

[0086] In the embodiment, according to the length of the mulberry seedlings 10, the rotating speed of the first driving assembly 3 and the second driving assembly 7 is controlled to make the time of the mulberry seedlings 10 passing through the first fire spraying assembly 4 and the second fire spraying assembly 8 be 1-3s, the disinfecting time of the mulberry seedlings 10 is controlled to achieve good disinfecting effect and avoid the mulberry seedlings 10 from being burned. The external gas tank or gas pipeline is connected with the first fire spraying assembly 4 and the second fire spraying assembly 8. The front surface disinfecting mechanism, the back surface disinfecting mechanism and the swinging mechanism are all arranged on the rack, and universal wheels can be arranged at the bottom of the rack to facilitate the movement of the device.

[0087] The working principle of the first flame spraying device is as follows: the mulberry seedlings 10 are spread in a row and placed on the first driving assembly 3, the length direction of the mulberry seedlings 10 is the same as the movement direction of the first driving assembly 3, the first driving assembly 3 drives the mulberry seedlings 10 to move downward and pass through the first flame spraying head, the first flame spraying head sprays high-temperature flame to kill the front surface of the mulberry seedlings 10, when the mulberry seedlings 10 pass through the first flame spraying assembly 4, the front surface of the mulberry seedlings 10 is killed, when the mulberry seedlings 10 move to the lower end of the first driving assembly 3, the telescopic rod 13 is extended, the swing motor drives the swing rod 12 to swing and further drives the telescopic rod 13 to swing, the movable part of the telescopic rod 13 drives the mulberry seedlings 10 to move to the second driving assembly 7 through the first gap 5, the second driving assembly 7 drives the mulberry seedlings 10 to move upward and pass through the second flame spraying assembly 8, when the mulberry seedlings 10 pass through the second flame spraying assembly 8, the back surface of the mulberry seedlings 10 is killed, the mulberry seedlings 10 continue to move upward under the driving action of the second driving assembly 7 and fall into the collecting basket.

[0088] <Embodiment 3>

[0089] A physical method for preventing and treating diseases and pests in mulberry seedlings and mulberry gardens by using high-temperature flame, which is different from the method provided in <Embodiment 1>, the difference is that the following second flame spraying device is used to generate high-temperature flame to spray and kill the stumps and gardens of the mulberry plants, as shown in Figure 2 、 Figure 3 The second flame spraying device comprises:

[0090] A flame spraying rod 14 which is a hollow tubular structure, one end of the flame spraying rod 14 is provided with a handle;

[0091] A third flame spraying assembly which comprises a left flame spraying assembly 15 and a right flame spraying assembly 16, the left flame spraying assembly 15 and the right flame spraying assembly 16 are both arc-shaped structures, the left flame spraying assembly 15 and the right flame spraying assembly 16 are hinged to a connecting piece 17, the connecting piece 17 is fixedly provided with a sleeve rod 18, the sleeve rod 18 is sleeved on the other end of the flame spraying rod 14;

[0092] The left flame spraying assembly 15 and the right flame spraying assembly 16 both comprise:

[0093] A mounting plate;

[0094] A mounting rod which is arc-shaped, the mounting rod comprises an upper mounting rod and a lower mounting rod which are arranged in parallel;

[0095] A plurality of third flame spraying heads which are arranged on the upper mounting rod at equal intervals and inclined downward;

[0096] A plurality of fourth flame spraying heads which are arranged on the lower mounting rod at equal intervals and inclined upward, the distance between the third flame spraying head and the fourth flame spraying head is 10 cm;

[0097] The mounting plate of the left flame spraying assembly 15 and the mounting plate of the right flame spraying assembly 16 are hinged with the connecting piece 17;

[0098] The opening and closing adjusting assembly comprises a positioning assembly, a hinge, a reset spring 20, a driving handle 21, a first driving line 24 and a second driving line 22.

[0099] The positioning assembly comprises a sliding cavity 25, a positioning plate 19 and a positioning pin 26, the sliding cavity 25 is arranged at one end of the flame spraying rod 14, the positioning plate 19 is slidably arranged in the sliding cavity 25, the positioning plate 19 is provided with a plurality of positioning teeth 27, the flame spraying rod 14 is provided with a pin shaft hole, the positioning pin 26 penetrates through the pin shaft hole and penetrates into the positioning teeth 27 to fix the positioning plate 19, one end of the first driving line 24 is fixedly connected with the sleeve connecting rod 18, and the other end is fixedly connected with the positioning plate 19.

[0100] The hinge comprises a hinge plate 28, a first hinge rod 30 and a second hinge rod 29, the hinge plate 28 is arranged at the other end of the flame spraying rod 14, one end of the first hinge rod 30 is fixedly connected with the third flame spraying assembly, the other end is hingedly connected with the second hinge rod 29, and the second hinge rod 29 is hingedly connected with the hinge plate 28.

[0101] The reset spring 20 is sleeved on the sleeve connecting rod 18, one end of the reset spring 20 is fixedly connected with the hinge plate 28, and the other end is fixedly connected with the connecting piece 17.

[0102] The driving handle 21 is rotatably arranged at one end of the flame spraying rod 14, the flame spraying rod 14 is provided with a wire hole, the inside of the flame spraying rod 14 is provided with a guide wheel 23, the position of the guide wheel 23 is opposite to the position of the wire hole, one end of the second driving line 22 is fixedly connected with the driving handle 21, and the second driving line 22 is fixedly connected with the positioning plate 19 after winding around the guide wheel 23.

[0103] When the driving handle 21 is close to the handle, the sleeve connecting rod 18 is driven to slide into the inside of the sliding cavity 25 through the second driving line 22, the positioning plate 19 and the first driving line 24, the reset spring 20 is pressed, the third flame spraying assembly is driven by the hinge, the included angle between the left flame spraying assembly 15 and the right flame spraying assembly 16 is opened to adapt to the disinfection of the rough stem mulberry seedling, the positioning pin 26 is inserted into the pin shaft hole and the tooth groove between the positioning teeth 27 to fix the included angle between the left flame spraying assembly 15 and the right flame spraying assembly 16.

[0104] In this embodiment, the inclined arrangement of the third flame spraying head and the fourth flame spraying head enables the flame to more fully disinfect the tree trunks of the plants. The opening and closing angle of the left flame spraying assembly 15 and the right flame spraying assembly 16 is adjusted by the opening and closing adjusting assembly to adapt to mulberry seedlings of different thicknesses. In this embodiment, the opening and closing angle of the left flame spraying assembly 15 and the right flame spraying assembly 16 is adjusted, and the disinfection of the tree trunks can be completed by moving the sleeve set on the tree trunks up and down once, which solves the problem that the tree trunks with a relatively large diameter need to be disinfected at least twice on the front and back surfaces, reduces the disinfection time, and improves the disinfection efficiency. The third flame spraying assembly is connected to an external gas cylinder or a gas pipeline through a total gas pipe, the gas pipe can be partially fixed on the flame spraying rod 14, and the gas pipe is a flexible pipe to adapt to the telescopic living body of the sleeve connecting rod 18. When disinfecting the mulberry garden, the gas cylinder is placed on the moving trolley, the gas pipe of the second flame spraying device of the present application is connected to the gas cylinder on the moving trolley, and the handle is held to disinfect the plants in the mulberry garden. In some embodiments, the distance between the upper mounting rod and the lower mounting rod is adjustable.

[0105] In this embodiment, the third flame spraying head and the fourth flame spraying head are respectively connected to the left gas pipe and the right gas pipe, and the left gas pipe and the right gas pipe are respectively provided with first and second closing control switches. The left gas pipe and the right gas pipe are connected to the total gas pipe through a three-way valve.

[0106] When disinfecting the tree trunks of the plants, the first and second closing control switches are both opened. When disinfecting the ground of the mulberry garden, the first closing control switch is opened, and the second closing control switch is closed to close the gas supply of the fourth flame spraying head.

[0107] <Effect test>

[0108] Test one

[0109] The same batch of mulberry seedlings were randomly selected, 300 seedlings were divided into three groups, group A was directly planted, group B was disinfected by the ordinary flame gun on the front and back surfaces of the mulberry seedlings, and then planted; group C was disinfected by the first flame spraying device provided in embodiment 2, and then planted. In the summer and autumn season of the first year after planting, the incidence of mulberry pests, dry rot disease, and powdery mildew was observed and counted, and the results are shown in Table 1.

[0110] Table 1: Statistical results of disease occurrence

[0111] Group A Group B Group C mulberry caterpillar 23.8 6.4 5.98 dryness disease (%) 20.4 4.8 5.2 powdery mildew 36.6 8.3 7.9

[0112] As can be seen from the results in Table 1, after the mulberry seedlings are disinfected by high-temperature flame, the incidence of mulberry pests, dry rot disease, and powdery mildew is significantly reduced. The results of group B and group C show that the disinfection of mulberry seedlings by the first flame spraying device has basically the same disease prevention and control effect as the disinfection by the ordinary flame gun, which indicates that the first flame spraying device of the present application can have a good effect on the disease prevention and control of mulberry seedlings.

[0113] Test two

[0114] The same mulberry field is divided into three areas after summer harvest, area D is not treated, area E uses common fire gun to disinfect the tree stump and ground of mulberry, area F uses the second fire gun device of the application to disinfect the tree stump and ground of mulberry, the incidence of plaster disease, sand boring, scale insect and mulberry aphid in the first year after disinfection in summer and autumn is observed and counted, and the results are shown in Table 2.

[0115] Table 2: Statistics results of disease occurrence

[0116] Region D Region E Region F plaster disease (%) 15.3 3.5 1.2 sand borer 11.4 3.5 1.4 scale (%) 16.5 2.1 1.6 mulberry aphid (%) 34.6 8.9 4.5

[0117] From the results in Table 2, it can be seen that high-temperature flame disinfection can better prevent and control plaster disease, sand boring, scale insect and mulberry aphid. The results of area E and area F show that the prevention and control effect of the second fire gun device of the application is better than that of the common fire gun, and the possible reason is that the disinfection using the second fire gun device is more uniform.

[0118] Although the embodiments of the application have been disclosed as above, it is not limited to the application listed in the specification and embodiments, and it can be fully applied to various fields suitable for the application, and other modifications can be easily realized by those skilled in the art, therefore, the application is not limited to specific details and the figures shown and described herein, without departing from the general concept defined by the claims and equivalent scope.

Claims

1. A flame spraying device for preventing and treating diseases and pests of mulberry seedlings and mulberry fields by using high-temperature flame, characterized in that, For the disinfection of mulberry seedlings before planting, the mulberry seedlings are required to be defoliated and pruned, and the pruning is performed at a distance of 30-40 cm from the root neck, and the high-temperature flame is used to disinfect the whole mulberry seedling, so as to complete the prevention and control of the disease and insect pests of the mulberry seedling; For the disinfection of the mulberry garden, the pruning is combined with the pruning of the mulberry garden, and the height of the tree stump after pruning is 60-80 cm, and the high-temperature flame is used to disinfect the tree stump and the surrounding ground, so as to complete the prevention and control of the disease and insect pests of the mulberry garden; The fire spraying device comprises a first fire spraying device and a second fire spraying device, and the first fire spraying device is used to uniformly disinfect the mulberry seedling plant; The second fire spraying device is used to uniformly disinfect the mulberry garden plant; The first fire spraying device comprises: The front disinfection mechanism comprises a first driving assembly and a first fire spraying assembly, the first driving assembly is arranged obliquely downward, the first fire spraying assembly is arranged above the first driving assembly, the first driving assembly comprises a plurality of first driving rollers, the plurality of first driving rollers are arranged in parallel, and a first gap is formed between adjacent two first driving rollers, the first fire spraying assembly comprises at least two groups of first fire spraying mechanisms, the first fire spraying mechanisms are arranged at intervals along the movement direction of the first driving assembly, each first fire spraying mechanism comprises a plurality of first fire spraying heads, the plurality of first fire spraying heads are arranged along the width direction of the first driving roller, and the upper end and the lower end of the first fire spraying assembly are each provided with a first fireproof plate; The back disinfection mechanism comprises a second driving assembly and a second fire spraying assembly, the second driving assembly is arranged obliquely upward, the second fire spraying assembly is arranged above the second driving assembly, the second driving assembly comprises a plurality of second driving rollers, the plurality of second driving rollers are arranged in parallel, a second gap is formed between adjacent two second driving rollers, the second fire spraying assembly comprises at least two groups of second fire spraying mechanisms, the second fire spraying mechanisms are arranged at intervals along the movement direction of the second driving assembly, each second fire spraying mechanism comprises a plurality of second fire spraying heads, the plurality of second fire spraying heads are arranged along the width direction of the second driving roller, and the upper end and the lower end of the second fire spraying assembly are each provided with a second fireproof plate; The receiving plate is located at the end of the first driving assembly and at the beginning of the second driving assembly, and the receiving plate is located below the first driving assembly and the second driving assembly; The swinging mechanism comprises a swinging rod, a swinging motor and an extension rod, the swinging rod is connected with the swinging motor, and the extension rod is arranged on the swinging rod; When the mulberry seedling is driven by the first driving assembly to the end of the first driving assembly, one end of the mulberry seedling falls on the receiving plate, the extension rod is elongated, and the extension rod passes through the first gap under the swinging action of the swinging motor to move the mulberry seedling to the back disinfection mechanism, the extension rod is retracted, and the swinging motor drives the swinging rod to reset to prepare for moving the next batch of mulberry seedlings; The second fire spraying device comprises: The fire spraying rod is in a hollow tubular structure, and one end of the fire spraying rod is provided with a handle; The third fire spraying assembly comprises a left fire spraying assembly and a right fire spraying assembly, the left fire spraying assembly and the right fire spraying assembly are in arc structures, the left fire spraying assembly and the right fire spraying assembly are hinged to the connecting piece, the connecting piece is fixedly provided with a sleeving rod, and the sleeving rod is sleeved on the other end of the fire spraying rod; The left fire spraying assembly and the right fire spraying assembly each comprise: A mounting plate; The mounting rod is in an arc structure, and comprises an upper mounting rod and a lower mounting rod; A plurality of third flame spraying heads are arranged on the upper mounting rod in an equal interval and downwardly inclined; A plurality of fourth flame spraying heads are arranged on the lower mounting rod in an equal interval and upwardly inclined, and the distance between the third flame spraying heads and the fourth flame spraying heads is 10 cm; The mounting plate of the left flame spraying assembly and the mounting plate of the right flame spraying assembly are hinged to the connecting piece; The opening and closing adjusting assembly comprises a positioning assembly, a hinge, a reset spring, a driving handle, a first driving line and a second driving line; The positioning assembly comprises a sliding cavity, a positioning plate and a positioning pin, the sliding cavity is arranged at one end of the flame spraying rod, the positioning plate is slidably arranged in the sliding cavity, a plurality of positioning teeth are arranged on the positioning plate, a pin hole is arranged on the flame spraying rod, and the positioning pin penetrates through the pin hole and penetrates into the positioning teeth to fix the positioning plate, one end of the first driving line is fixedly connected to the sleeve connecting rod, and the other end is fixedly connected to the positioning plate; The hinge comprises a hinge plate, a first hinge rod and a second hinge rod, the hinge plate is arranged at the other end of the flame spraying rod, one end of the first hinge rod is fixedly connected to the third flame spraying assembly, the other end is hingedly connected to the second hinge rod, and the second hinge rod is hingedly connected to the hinge plate; The reset spring is sleeved on the sleeve connecting rod, one end of the reset spring is fixedly connected to the hinge plate, and the other end is fixedly connected to the connecting piece; The driving handle is rotatably arranged at one end of the flame spraying rod, a wire hole is arranged on the flame spraying rod, a guide wheel is arranged in the flame spraying rod, the position of the guide wheel is opposite to the position of the wire hole, one end of the second driving line is fixedly connected to the driving handle, and the second driving line is fixedly connected to the positioning plate after winding around the guide wheel.

2. The flame spraying device for preventing and treating pests and diseases in mulberry seedlings and mulberry fields using high-temperature flame according to claim 1, characterized in that, The high-temperature flame is generated by burning of liquefied petroleum gas or coal gas, and the height of the flame is greater than or equal to 15 cm.

3. The flame spraying device for preventing and treating pests and diseases in mulberry seedlings and mulberry fields using high-temperature flame according to claim 1, characterized in that, Only the main stem is left on the mulberry seedling, and there is no leaf on the main stem; the whole mulberry garden is required to be in a state of plant growth entering a slow growth period or a dormant period, and no new buds and leaves are generated.

4. The flame spraying device for preventing and treating pests and diseases in mulberry seedlings and mulberry fields using high-temperature flame according to claim 1, characterized in that, The mulberry garden killing is performed after branch cutting and garden cleaning in summer and winter.

5. The flame spraying device for preventing and treating pests and diseases in mulberry seedlings and mulberry fields using high-temperature flame according to claim 1, characterized in that, After branch cutting of the mulberry garden, the cut branches are moved out of the garden, and fallen leaves and weeds in the garden are cleaned.

6. The flame spraying device for preventing and treating pests and diseases in mulberry seedlings and mulberry fields using high-temperature flame according to claim 1, characterized in that, For the mulberry garden with serious diseases, the garden is disinfected twice, and the direction of the second disinfection is opposite to that of the first disinfection.

7. The flame spraying device for preventing and treating pests and diseases in mulberry seedlings and mulberry fields using high-temperature flame according to claim 1, characterized in that, The specific disinfection method for the plants in the garden is to disinfect the plants in an up-down and front-back sequence, and finally to focus on disinfecting the places where bacteria and insect eggs are easily hidden, such as the fist part of the stem and the joint of the stem and the root.

8. The flame spraying device for preventing and treating pests and diseases in mulberry seedlings and mulberry fields using high-temperature flame according to claim 7, characterized in that, The forward disinfection from top to bottom takes 2-3 seconds, the reverse disinfection from bottom to top takes 2-3 seconds, and the disinfection around the fist part of the stem or the joint of the stem and the root takes 1-3 seconds.

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