Experimental device for preference selection of insects to smell of plants or preys

Abstract

The utility model discloses a plant or prey smell preference selection experiment device for insects, which comprises an outer packaging box and a belt wheel fixing frame, and is characterized in that an insect selection chamber is mounted on one side of the top end of the outer packaging box, a smell source chamber is mounted on the other side of the top end of the outer packaging box, and the smell source chamber comprises six hollow chambers; the six hollow chambers are distributed at the top end of the outer packaging box in two rows and three columns, gas flow meters are installed on the tops of the sides, away from the insect selection chamber, of the two rightmost hollow chambers correspondingly, outlets of the gas flow meters communicate with the interiors of the hollow chambers, and first silicone tubes are connected to inlets of the two gas flow meters correspondingly. The device is convenient to carry, simple and convenient to operate, diversified in function, capable of being used in laboratories and under the field condition, capable of reducing interference of other smells in the environment, simple in device connection method, capable of being used repeatedly and more suitable for the actual situation.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental devices, in particular to an experimental device for insects to select plant or prey odor preferences. Background Art

[0002] The vast majority of insects, including herbivorous, predatory and parasitic insects, have a relatively sensitive sense of smell and use odor to locate hosts and mates, thereby quickly finding food and mates.

[0003] Therefore, the identification test of insects to odors is an important part of studying insects' search for hosts and mates. At present, most experiments on insect selection behavior using living plants or prey use cage devices or Y-type olfactometers to test insect selection preferences. However, these two insect preference selection devices have the following disadvantages:

[0004] (1) Cage devices or Y-type olfactometers are often used in indoor insect preference experiments. However, due to long distances and high insect mortality rates, some insect sources are difficult to bring back indoors, and experiments need to be conducted under field conditions. Therefore, there are significant limitations in experimental conditions.

[0005] (2) When using a cage device to conduct insect preference selection experiments under indoor conditions, insects choose different odor sources in the same cage. Due to different treatments or growth environments, the color of plants or prey may change, thereby interfering with the insect's vision. The existing insect selection device has a relatively simple function and can only test the insect's preference for different odor sources at the same distance. It is impossible to conduct quantitative research on odor sources of different types, distances or concentrations and further meet experimental needs. Utility Model Content

[0006] The utility model aims to provide an experimental device for insects' preference for plant or prey odors, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an experimental device for insect preference selection for plant or prey odors, comprising an outer packaging box and a fixed frame with wheels, characterized in that an insect selection chamber is installed on one side of the top of the outer packaging box, and an odor source chamber is installed on the other side of the top of the outer packaging box, the odor source chamber includes six hollow chambers, and the six hollow chambers are distributed in two rows and three columns on the top of the outer packaging box, and the tops of the two rightmost hollow chambers facing away from the insect selection chambers are both installed with gas flow meters, and the outlets of the gas flow meters are connected to the interior of the hollow chambers, and the inlets of the two gas flow meters are both connected to silicone tube 1, one end of the two silicone tubes 1 is connected to a three-way pipe, one end of the three-way pipe is connected to silicone tube 2, one end of the silicone tube 2 is connected to an air bottle, and the air bottle is placed inside the fixed frame with wheels.

[0008] When using an insect preference experiment device for plant or prey odor selection using the technical solution, it is easy to carry, easy to operate, and has diverse functions. It can be used both in the laboratory and in the field, can reduce interference from other odors in the environment, has a simple device connection method, can be used multiple times, and is more in line with actual conditions.

[0009] As a preferred technical solution of the utility model, a through hole is opened at the bottom of each adjacent hollow chamber at the horizontal direction, a rubber plug is clamped on the inner wall of the through hole, a chamber cover is hinged at the top of the hollow chamber, and a self-adhesive handle is installed at the top of the chamber cover. The rubber plug is used to plug the through hole to close the subsequent odor source chamber.

[0010] As a preferred technical solution of the utility model, a red light is installed at the top of the inner wall of the insect selection chamber, a tiger clamp is installed in the middle of the bottom of the inner wall of the insect selection chamber, a Y-shaped tube is installed on the inner wall of the tiger clamp, two rubber plugs are clamped at both ends of the Y-shaped tube, two silicone tubes are inserted into the inside of the two rubber plugs, one end of the two silicone tubes is connected to a reducer straight-through joint, and the two reducer straight-through joints are respectively connected to the inside of the two leftmost hollow chambers. The selection of insects is observed through the Y-shaped tube.

[0011] As a preferred technical solution of the utility model, a second chamber cover is hingedly connected to the side of the insect selection chamber away from the odor source chamber, and a second self-adhesive handle is installed at the bottom of the second chamber cover. The second self-adhesive handle is convenient for opening the second chamber cover.

[0012] As a preferred technical solution of the utility model, a control switch is fixedly installed in the middle of one side of the inner wall of the insect selection chamber, and the red light is electrically connected to an external power supply through the control switch. The red light is turned on and off by the control switch.

[0013] As a preferred technical solution of the utility model, the outer packaging box includes a bottom plate, four side panels 1, four side panels 2 and a box cover, the four sides of the bottom plate are hinged with side panels 1, the tops of the four side panels 1 are hinged with side panels 2, the tops of the four side panels 2 are placed with box covers, and the four corners of the top and the four corners of the bottom of the outer packaging box are clamped with fixators. The provided fixators are used to fix the shape of the outer packaging box.

[0014] As a preferred technical solution of the utility model, the surfaces of the four fixing devices at one end of the outer packaging box are all equipped with universal wheels, which facilitate the movement of the device after folding.

[0015] As a preferred technical solution of the utility model, a pull rod is installed at one end of the outer packaging box. After the device is folded, the device can be moved by pulling the pull rod.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The experimental device for insect preference for plant or prey odor is easy to carry, simple to operate, and has multiple functions. It can be used in both laboratory and field conditions and has good versatility.

[0018] 2. The experimental device for insects' preference for plant or prey odors can reduce the interference of other odors in the environment. The device has a simple connection method and can be used multiple times, which is more in line with the actual situation, making the experimental results more reliable and more convincing. It has good application prospects and can test insects' preferences for odor sources of different types, distances or concentrations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 It is a front cross-sectional view of the odor source chamber of the utility model;

[0021] Figure 3 It is a front cross-sectional view of the insect selection chamber of the utility model;

[0022] Figure 4 It is a top cross-sectional view of the insect selection chamber of the utility model;

[0023] Figure 5 It is a three-dimensional diagram of the outer packaging box of the utility model;

[0024] Figure 6 It is a three-dimensional diagram of the outer packaging box of the utility model after being folded.

[0025] In the figure: 1. outer packaging box; 101. bottom plate; 102. side panel 1; 103. side panel 2; 104. box cover; 2. insect selection chamber; 3. odor source chamber; 301. hollow chamber; 4. wheel fixing frame; 5. air bottle; 6. three-way pipe; 7. gas flow meter; 8. holder; 9. universal wheel; 10. pull rod; 11. silicone tube 1; 12. through port; 13. rubber plug 1; 14. silicone tube 2; 15. chamber cover 1; 16. self-adhesive handle 1; 17. chamber cover 2; 18. red light; 19. tiger clamp; 20. Y-tube; 21. rubber plug 2; 22. silicone tube 3; 23. reducer straight-through connector; 24. control switch; 25. self-adhesive handle 2. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-6 The utility model provides an experimental device for insects' preference for plant or prey odor selection, comprising an outer packaging box 1 and a fixed frame 4 with wheels, an insect selection chamber 2 is installed on one side of the top of the outer packaging box 1 for placing insects, an odor source chamber 3 is installed on the other side of the top of the outer packaging box 1 for placing odor sources, the odor source chamber 3 comprises six hollow chambers 301, and the six hollow chambers 301 are distributed in two rows and three columns on the top of the outer packaging box 1, the tops of the two rightmost hollow chambers 301 away from the insect selection chamber 2 are both installed with gas flow meters 7, and the outlets of the gas flow meters 7 are connected to the interior of the hollow chambers 301, the inlets of the two gas flow meters 7 are both connected with silicone tubes 11, one end of the two silicone tubes 11 is connected with three-way pipes 6, one end of the three-way pipe 6 is connected with silicone tube 2 14, one end of the silicone tube 2 14 is connected with an air bottle 5 for diffusing the air in the odor source chamber 3, and the air bottle 5 is placed inside the fixed frame 4 with wheels.

[0028] Before use, connect all parts of the device, put two groups of odor source plants or prey in the odor source chamber 3, cover the chamber cover 15 tightly to reduce the interference of other external odors, then turn on the switch of the pure air bottle 5, adjust the pressure reducing valve, control the gas pressure, and ventilate for 10 minutes to make the odor of the odor source fill the Y-tube 20 to ensure the test results. During the test, adjust the gas flow meter 7 to make the air flow speed of the two arms the same, both 0.2L / min, release insects separately in the main arm of the Y-tube 20, and conduct an experiment on the insect's preference for plant or prey odors.

[0029] A through opening 12 is provided at the bottom of each connection between two adjacent hollow chambers 301 in the horizontal direction, and a rubber plug 13 is engaged with the inner wall of the through opening 12 to play a sealing role. A chamber cover 15 is hinged at the top of the hollow chamber 301, and a self-adhesive handle 16 is installed at the top of the chamber cover 15 to facilitate opening the cover.

[0030] When in use, the device only conducts a two-choice experiment on the insects' preference for plant or prey odors, so two groups of odor sources (control odor and test odor) are required. According to the experimental requirements (the odor sources can be arranged and combined, and placed in the odor source chambers of different types, distances or concentrations, and whether to plug the round holes of other odor source chambers can be selected according to different odor source conditions to meet various experimental needs), the odor source plants or prey required for the experiment are placed in the appropriate odor source chamber 3, and the chamber cover 15 is closed tightly to minimize the interference of other external odors on insect odor recognition.

[0031] A red light 18 is installed at the top of the inner wall of the insect selection chamber 2, a tiger clamp 19 is installed in the middle of the bottom end of the inner wall of the insect selection chamber 2, a Y-shaped tube 20 is installed on the inner wall of the tiger clamp 19, and rubber plugs 21 are clamped at both ends of the Y-shaped tube 20, and silicone tubes 3 22 are inserted into the interiors of the two rubber plugs 21, and one end of the two silicone tubes 3 22 is connected to a reducing straight-through joint 23, and the two reducing straight-through joints 23 are respectively connected to the interiors of the two hollow chambers 301 on the far left. A chamber cover 17 is hinged on the side of the insect selection chamber 2 away from the odor source chamber 3, and a self-adhesive handle 25 is installed at the bottom of the chamber cover 17 for easy opening. A control switch 24 is fixedly installed in the middle of one side of the inner wall of the insect selection chamber 2, and the red light 18 is electrically connected to an external power supply through the control switch 24 to control the opening and closing.

[0032] When in use, connect the USB connector of the insect selection chamber 2 to an external power source, turn on the red light 18 through the control switch 24, release insects individually in the main arm of the Y-tube 20, and conduct an experiment on the insect's preference for plant or prey odor. The selection chamber cover is provided with a handle, which can be flexibly opened and closed to facilitate the placement of insects and observation of subsequent measurement results. At the same time, in order to avoid the influence of position effect and residual odor, after every 5-10 groups of insects have finished selecting, it is necessary to change the direction of the two arms of the Y-tube 20 or replace a new Y-tube 20.

[0033] The outer packaging box 1 includes a bottom plate 101, four side panels 102, four side panels 2 103 and a box cover 104. The four sides of the bottom plate 101 are hinged with side panels 102, the tops of the four side panels 102 are hinged with side panels 2 103, and the tops of the four side panels 2 103 are placed with a box cover 104. The four corners of the top and the four corners of the bottom of the outer packaging box 1 are all engaged with fixers 8 to play a shaping role. Universal wheels 9 are installed on the surfaces of the four fixers 8 at one end of the outer packaging box 1, and a pull rod 10 is installed at one end of the outer packaging box 1 for easy movement.

[0034] During use, after all experiments are completed, the components of the device are restored to their initial unconnected state to avoid component loss, the fixtures 8 around the workbench are removed, unfolded and flipped upward to form an outer packaging box 1. When closing, the odor source chamber 3, the insect selection chamber 2 and other components can be placed in the box, the box cover 104 is closed, and the fixtures 8 are fixed to the box cover 104 and the box body, the universal wheel 9 assembly is installed, and the pull rod 10 is pulled out from the bottom of the box body and moved to the device placement location. When the device is not in use, the pull rod 10 can be retracted to the bottom of the box body.

[0035] When used specifically, the utility model is an experimental device for insects' preference for plant or prey odor selection. The outer packaging box 1 is made of polypropylene and has a volume of 62cm×42cm×42cm. A box cover 104 is provided on the top of the box body. The box cover 104 is made of the same material as the box body and has an area of ​​62cm×42cm. The sides of the box body are divided into two parts. The upper and lower parts are hinged by 2 or 4 groups of convex and concave blocks and can be unfolded or folded to different heights (42cm or 21cm). The box body is hinged to the bottom surface around each other, and the hinges are provided with folding shafts, which can be flexibly disassembled and assembled into a workbench by flipping the direction. The box cover 104 is fixed to the box body around each other by plastic snap-on fasteners 8, and is equipped with a universal wheel 9 assembly, and it can be selected whether to be assembled with the fastener 8 The box is easy to move or store. A hidden aluminum alloy telescopic pull rod 10 is provided at the bottom of the box. When in use, it can be extended to 20cm or 40cm for easy carrying. When not in use, it can be retracted to the inside of the aluminum tube of the pull rod 10. The ventilation device is an air bottle 5 filled with pure air. There is a pressure reducing valve on the bottle to adjust the gas pressure. The capacity is 5L (the capacity can be changed according to the experimental conditions). It is placed on a wheeled fixed frame 4 for easy movement and carrying. The air bottle 5 is connected to the three-way pipe 6 and the gas flow meter 7. The three-way pipe 6 is made of transparent glass. The arm length is about 5cm. The arm end is a pagoda-shaped anti-slip structure with an inner diameter of about 4mm and an outer diameter of about 6mm. The gas flow meter 7 is a panel-type glass rotor flow meter that can adjust the gas flow rate. The measuring range is 0.1-1.0L / min. The upper interface is an internal thread G1 / 4, and the lower interface is a pagoda with an outer diameter of 6mm. The gas is divided into two streams through the three-way pipe 6 and leads to the odor source chamber 3 through a silicone tube and a straight joint connected to a gas flow meter 7. The inner diameter of the silicone tube is 6mm and the outer diameter is 9mm. The straight joint is made of stainless steel. The joints at both ends are threaded external threads G1 / 4. One end is connected to the upper interface of the gas flow meter 7, and the other end passes through a circular hole with a diameter of 14mm on the top of the surface of the ventilation device connected to the odor source chamber 3, and is connected to the matching nut. The odor source chamber 3 is six connected hollow rectangular transparent acrylic chambers AF, 2 rows horizontally and 3 columns vertically. The volume of each small chamber is 20cm×20cm×40cm (length×width×height, which can be changed according to the size of the odor source plant or prey). size), the odor sources can be arranged and combined to form a neighbor relationship or placed in odor source chambers at different distances to meet various experimental needs. In order to connect the odor source with the ventilation device, a circular hole with a diameter of 14 mm is set on one odor source chamber 3 and the other odor source chamber 3 that is connected to the ventilation device. The circular hole is 2 cm away from the top edge. The straight-through connector is passed through the circular hole and tightened and fixed with a matching nut to connect with the interface on the gas flow meter 7. This device only conducts a double-choice experiment on the preference of insects for plant or prey odors, so two groups of odor sources (control odor and test odor) are required. In order to facilitate the placement and replacement of odor sources, each odor source chamber 3 is equipped with a chamber cover of the same material, with an area of ​​20 cm × 20 cm, and a punch-free self-adhesive handle 16 is provided on the top.The chamber cover 15 is connected to the odor source chamber 3 by two stainless steel hinges. The chamber cover 15 is surrounded by silicone sealing strips to seal the contact with the odor source chamber 3 tightly, so as to minimize the interference of chemical odors from the external environment on insect odor recognition. Except for the shared surface with the insect selection chamber 2, the entire material of the odor source chamber 3 is transparent acrylic with a thickness of 5mm. The odor source is a living plant or insect prey. A circular hole with a diameter of 14mm is set at the bottom of the communicating surface between the odor source chambers 3 and the communicating surface with the insect selection chamber 2, for a total of six circular holes, and are equipped with corresponding rubber hole plugs (whether to plug the circular holes can be selected according to different odor source conditions). The circular holes are 2cm away from the bottom of the odor source chamber 3, and the stainless steel variable diameter straight The joint 23 at one end of the odor source chamber 3 is a G1 / 4 threaded external thread, which is passed through a hole and connected to a matching nut. The joint at the other end is a pagoda with an outer diameter of 6mm, which is connected to the silicone tube inside the insect selection chamber 2 and fixed by a rubber plug, and extends into the two arms of the Y-tube 20 of the insect selection chamber 2. According to different experimental requirements, the variable diameter straight-through joint 23 and the silicone tube can be connected to the circular holes at the bottom of different odor source chambers 3, thereby changing the distance between the odor source and the starting point of the insect selection, or connecting different odor source chambers 3 in series to form a neighbor relationship, and merging and passing through the side arms of the Y-tube 20 to realize the diversified functions of the device. In order to facilitate the observation of insect behavior test results, the insect selection chamber 2 is a hollow cube chamber with a volume of 40cm×4 0cm×40cm, with a removable translucent black acrylic selection chamber cover, the chamber cover 17 is connected to the insect selection chamber 2 by two stainless steel hinges, the selection chamber cover is surrounded by a silicone sealing strip, and a handle is provided on the selection chamber cover, which can be flexibly opened and closed to facilitate the placement of insects and observation of subsequent measurement results. The other five sides are black opaque frosted acrylic plates (including the surface shared with the odor source chamber 3), the thickness of the acrylic plate is 5mm, a red light source is provided on the inner side of the top of the insect selection chamber 2, the red LED bulb and the E27 screw-mouth flat-mounted lamp holder are fixed to the top by screws and rubber plugs, and are equipped with a 2m light cord, a control switch 24 and a USB connector, which are convenient for connecting sockets and power supply equipment or mobile power supplies such as power banks, selection A Y-shaped transparent glass tube is provided inside the selection chamber, with a main arm length of 15 cm, two side arms length of 10 cm, an angle of 120°, and an inner diameter of 2 cm. It is fixed to the bottom surface of the insect selection chamber 2 by means of a stainless steel tiger clamp 19 with screws passing through the hole at the bottom. At the same time, in order to avoid the influence of position effect and residual odor, after each group of experimental operations is completed, the direction of the two arms of the Y-shaped tube 20 can be flexibly changed or a new Y-shaped tube 20 can be replaced. When working, open the outer packaging box 1, turn it down and fold it to a suitable height, so that the box body and the bottom surface are hinged to each other, and fixed to the box cover 104 and the box body with a fixer 8. The universal wheel 9 assembly can be flexibly selected whether to be installed. The entire outer packaging box 1 is assembled into a workbench to provide a good working environment.Connect the components of the device on the workbench in the following order: ventilation device (air bottle 5-tee pipe 6-gas flowmeter 7)-odor source chamber 3-insect selection chamber 2 (reducing straight-through joint 23-silicone tube 3 22-rubber plug 2 21-Y-tube 20-stainless steel tiger clamp 19 fixed). This device only conducts a double-choice experiment on insect preference for plant or prey odors, so two groups of odor sources (control odor and test odor) are required. According to the experimental requirements (the odor sources can be arranged and combined, set different types, distances or concentrations, etc., and placed in the odor source chamber, and according to different odor sources The conditions are such that the round holes of other odor source chambers can be selected to be blocked to meet various experimental requirements. The odor source plants or prey required for the experiment are placed in the appropriate odor source chamber 3, and the chamber cover 15 is tightly closed to minimize the interference of other external odors on the insect odor recognition. Then, the switch of the pure air bottle 5 in the ventilation device is turned on, and the pressure reducing valve is adjusted to control the gas pressure. Ventilate for 10 minutes to fill the Y-shaped tube 20 with the odor source odor to ensure the test results. During the test, the gas flow meter 7 is adjusted to make the air flow speed of the two arms the same, both 0.2L / min. The insects are selected The USB connector of chamber 2 is connected to an external power source, the red light 18 is turned on, and insects are released individually in the main arm of the Y-tube 20 to conduct an experiment on the insects' preference for plant or prey odors. The selection chamber cover is provided with a handle, which can be flexibly opened and closed to facilitate the placement of insects and the observation of subsequent measurement results. At the same time, in order to avoid the influence of position effect and residual odor, the direction of the two arms of the Y-tube 20 needs to be changed or a new Y-tube 20 needs to be replaced after every 5-10 groups of insects have finished their selection. In addition, after each group of odor source measurements are completed, the chamber cover 15 needs to be opened to remove the odor source and clean the odor source chamber 3 for subsequent Replace other odor source plants or prey for experiments. After all experiments are completed, restore the components of the device to the initial unconnected state to avoid component loss. Remove the fixtures 8 around the workbench, unfold it and flip it upward to form an outer packaging box 1. When closing, the odor source chamber 3 and the insect selection chamber 2 and other components can be placed in the box, cover the box cover 104, and then fix the fixture 8 on the box cover 104 and the box body. Install the universal wheel 9 assembly, and pull out the pull rod 10 at the bottom of the box body to move to the device placement location. When the device is not in use, the pull rod 10 can be retracted to the bottom of the box body.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An experimental device for insect preference for plant or prey odor, comprising an outer packaging box (1) and a wheeled fixing frame (4), characterized in that: An insect selection chamber (2) is installed on one side of the top of the outer packaging box (1), and an odor source chamber (3) is installed on the other side of the top of the outer packaging box (1). The odor source chamber (3) includes six hollow chambers (301), and the six hollow chambers (301) are distributed in two rows and three columns at the top of the outer packaging box (1). A gas flow meter (7) is installed on the top of the two rightmost hollow chambers (301) on the side away from the insect selection chamber (2), and the outlet of the gas flow meter (7) is connected to the inside of the hollow chamber (301). The inlets of the two gas flow meters (7) are connected to a silicone tube one (11), one end of the two silicone tubes one (11) is connected to a three-way pipe (6), one end of the three-way pipe (6) is connected to a silicone tube two (14), one end of the silicone tube two (14) is connected to an air bottle (5), and the air bottle (5) is placed inside the pulley fixing frame (4).

2. The experimental device for insect preference for plant or prey odor according to claim 1, characterized in that: A through opening (12) is provided at the bottom of each connection point of two adjacent hollow chambers (301) in the transverse direction, a rubber plug (13) is engaged with the inner wall of the through opening (12), a chamber cover (15) is hingedly connected to the top of the hollow chamber (301), and a self-adhesive handle (16) is installed at the top of the chamber cover (15).

3. The experimental device for insect preference for plant or prey odor according to claim 1, characterized in that: A red light (18) is installed at the top of the inner wall of the insect selection chamber (2), a tiger clamp (19) is installed in the middle of the bottom of the inner wall of the insect selection chamber (2), a Y-shaped tube (20) is installed on the inner wall of the tiger clamp (19), two rubber plugs (21) are clamped at both ends of the Y-shaped tube (20), a silicone tube (22) is inserted into the interior of the two rubber plugs (21), one end of the two silicone tubes (22) is connected to a reducing straight-through joint (23), and the two reducing straight-through joints (23) are respectively connected to the interior of the two leftmost hollow chambers (301).

4. The experimental device for insect preference for plant or prey odor according to claim 3, characterized in that: A second chamber cover (17) is hingedly connected to the side of the insect selection chamber (2) facing away from the odor source chamber (3), and a second self-adhesive handle (25) is installed at the bottom of the second chamber cover (17).

5. The experimental device for insect preference for plant or prey odor according to claim 3, characterized in that: A control switch (24) is fixedly installed in the middle of one side of the inner wall of the insect selection chamber (2), and the red light (18) is electrically connected to an external power supply via the control switch (24).

6. The experimental device for insect preference for plant or prey odor according to claim 1, characterized in that: The outer packaging box (1) comprises a bottom plate (101), four side panels (102), four side panels (103) and a box cover (104); the four sides of the bottom plate (101) are hingedly connected to the side panels (102); the top ends of the four side panels (102) are hingedly connected to the side panels (103); the box cover (104) is placed on the top ends of the four side panels (103); and the four corners of the top end and the four corners of the bottom end of the outer packaging box (1) are clamped with fixers (8).

7. The experimental device for insect preference for plant or prey odor according to claim 6, characterized in that: Universal wheels (9) are installed on the surfaces of the four fixers (8) located at one end of the outer packaging box (1).

8. The experimental device for insect preference for plant or prey odor according to claim 6, characterized in that: A pull rod (10) is installed at one end of the outer packaging box (1).

Images