Natural enemy stress device for stored grain pests

Abstract

The present invention provides a natural enemy deterrent device for stored-grain pests, comprising: a prey holding device and a natural enemy holding device; the prey holding device is located within the natural enemy holding device; the prey holding device is provided with a prey inlet, an air inlet, an odor transmission hole, and a viewing window; and the natural enemy holding device is provided with a natural enemy inlet and an air inlet. During a natural enemy stress experiment, the natural enemy-deterrent device of the present invention stimulates the prey visually and olfactorily to observe the prey's emergency response, thus achieving a non-consumptive natural enemy stress experiment.

Description

Technical Field

[0001] The present invention relates to the field of experiments, and more particularly to a natural enemy forcing device for stored-grain pests. Background Art

[0002] Stress is a relationship between predators and prey that can lead to changes in the prey's growth, development, reproduction, morphology, behavior, physiology, and biochemistry. These changes can have a range of ecological consequences for both individual prey and populations. Stress can be categorized as consumptive or non-consumptive. Consumptive stress refers to stress caused by direct predation, while non-consumptive stress occurs without direct contact with the prey. Numerous experiments have demonstrated that non-consumptive stress can significantly impact the growth and development of prey.

[0003] However, the current coercion devices are all consumable coercion devices, and there is no coercion device corresponding to non-consumable coercion. Therefore, there is an urgent need for a non-consumable coercion device, especially a coercion device for the natural enemies of stored-grain pests. Summary of the Invention

[0004] The present invention provides a natural enemy forcing device for stored-grain pests, which overcomes the above problems or at least partially solves the above problems.

[0005] In a first aspect, the present invention provides a natural enemy forcing device for stored-grain pests, comprising: a prey holding device and a natural enemy holding device;

[0006] The prey holding device is inside the natural enemy holding device, the prey holding device is provided with a prey inlet, an air inlet, an odor transmission hole and a visual window, and the natural enemy holding device is provided with a natural enemy inlet and an air inlet.

[0007] Preferably, the scent transmission hole passes through the side wall of the prey holding device.

[0008] Preferably, the vertical height of the odor transmission hole on the outer surface of the prey holding device is greater than the vertical height of the odor transmission hole on the inner surface of the prey holding device, and the angle between the center line of the odor transmission hole and the axis of the prey holding device is between 0-90°.

[0009] Preferably, the angle between the center line of the scent transmission hole and the axis of the prey holding device is 60°.

[0010] Preferably, the vertical distance between the position of the scent transmission hole on the inner surface of the prey holding device and the inner bottom surface of the prey holding device is between 8-12 mm, and / or the aperture of the scent transmission hole is between 0.3-0.7 mm.

[0011] Preferably, the vertical distance between the position of the scent transmission hole on the inner surface of the prey holding device and the inner bottom surface of the prey holding device is 10 mm.

[0012] Preferably, the aperture of the odor transmission hole is 0.5 mm.

[0013] Preferably, the volume ratio of the natural enemy holding device to the prey holding device is between 30 / 17 and 30 / 21.

[0014] Preferably, the volume of the natural enemy holding device is 300 ml, and the volume of the prey holding device is 190 ml.

[0015] Preferably, the inner bottom surface of the natural enemy holding device is a non-slip bottom surface.

[0016] Preferably, the natural enemy holding device is made of transparent PVC material, and anti-slip grooves are provided on the inner bottom surface of the natural enemy holding device.

[0017] Preferably, the natural enemy containing device includes a cylinder body with an opening at one end and a cylinder cover corresponding to the opening of the cylinder body, the cylinder body and the cylinder cover are detachably connected, and the air inlet of the natural enemy containing device is arranged on the cylinder cover.

[0018] Preferably, the diameter of the barrel of the natural enemy holding device is 60 mm, the height is 100 mm, and the diameter of the air inlet of the natural enemy holding device is 0.5 mm.

[0019] Preferably, the prey holding device includes a cylinder body with an opening at one end and a cylinder cover corresponding to the opening of the cylinder body, the cylinder body and the cylinder cover are detachably connected, and the cylinder cover is a gauze.

[0020] Preferably, the body diameter of the prey holding device is 30 mm and the height is 40 mm; the cylinder cover of the prey holding device is a 65-mesh gauze, the diameter of each mesh of the gauze of the prey holding device is 20 mm, and the prey holding device is made of transparent PVC material.

[0021] It can be seen from the above technical solution that when the natural enemy stressing device for stored-grain pests described in the embodiment of the present invention conducts a non-consumable natural enemy stressing experiment, the prey is placed in the prey holding device through the prey inlet, and air is provided to the prey through the air inlet of the prey holding device. The natural enemy is placed in the natural enemy holding device through the natural enemy inlet, and air is provided to the natural enemy through the air inlet of the natural enemy holding device. The natural enemy transmits its own odor to the prey through the odor transmission hole to form olfactory stimulation, and the natural enemy forms visual stimulation to the prey through the visual window. The natural enemy ultimately stimulates the prey both visually and olfactorily to observe the emergency response of the prey, thereby realizing a non-consumable natural enemy stressing experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a natural enemy forcing device for stored-grain pests according to one embodiment of the present invention;

[0023] Figure 2 for Figure 1 Side view of a device for forcing natural enemies of stored grain pests;

[0024] Figure 3 for Figure 2 A partial enlarged view of part A in the middle;

[0025] Figure 4 for Figure 1 Top view of the natural enemy deterrent device for stored grain pests. DETAILED DESCRIPTION

[0026] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0027] Figure 1 This is a schematic structural diagram of a natural enemy forcing device for stored-grain pests according to one embodiment of the present invention;

[0028] Figure 2 for Figure 1 Side view of a device for forcing natural enemies of stored grain pests;

[0029] Figure 3 for Figure 2 A partial enlarged view of part A in the middle;

[0030] Figure 4 for Figure 1 Top view of the natural enemy deterrent device for stored grain pests.

[0031] like Figures 1-4 The device for forcing natural enemies of stored-grain pests shown includes: a prey holding device 12 and a natural enemy holding device 11;

[0032] The prey holding device is inside the natural enemy holding device 11 , and the prey holding device is provided with a prey inlet, an air inlet, an odor transmission hole 13 and a visual window. The natural enemy holding device 11 is provided with a natural enemy inlet and an air inlet.

[0033] When the natural enemy stressing device for stored-grain pests described in an embodiment of the present invention conducts a non-consumable natural enemy stressing experiment, the prey is placed in the prey holding device through the prey inlet, and air is provided to the prey through the air inlet of the prey holding device. The natural enemy is placed in the natural enemy holding device through the natural enemy inlet, and air is provided to the natural enemy through the air inlet of the natural enemy holding device. The natural enemy transmits its own odor to the prey through the odor transmission hole to form olfactory stimulation. The natural enemy forms a visual stimulation to the prey through the visual window. The natural enemy ultimately stimulates the prey both visually and olfactorily to observe the emergency response of the prey, thereby realizing a non-consumable natural enemy stressing experiment.

[0034] In order to transmit more of the scent of the natural enemy to the prey in the prey holding device, as a preferred embodiment, the scent transmission hole 13 passes through the side wall of the prey holding device 12. This embodiment shortens the transmission distance of the scent of the natural enemy, thereby ensuring that more of the scent of the natural enemy is transmitted to the prey in the prey holding device.

[0035] As a preferred embodiment, the vertical height of the odor transmission hole 13 on the outer surface of the prey holding device 12 is greater than the vertical height of the odor transmission hole 13 on the inner surface of the prey holding device 12, and the angle between the center line of the odor transmission hole 13 and the axis of the prey holding device 12 is between 0-90°. Optimally, the angle between the center line of the odor transmission hole 13 and the axis of the prey holding device 12 is preferably 60°.

[0036] In the natural enemy forcing device for stored-grain pests described in the embodiment of the present invention, the odor transmission hole is an inclined hole, which can prevent prey from crawling out of the odor transmission hole and natural enemies from drilling into the prey holding device through the odor transmission hole.

[0037] As a preferred embodiment, the vertical distance between the position of the scent transmission hole 13 on the inner surface of the prey holding device 12 and the inner bottom surface of the prey holding device 12 is between 8-12 mm, and optimally, the vertical distance between the position of the scent transmission hole 13 on the inner surface of the prey holding device 12 and the inner bottom surface of the prey holding device 12 is 10 mm. And / or the aperture of the scent transmission hole 13 is between 0.3-0.7 mm, and optimally, the aperture of the scent transmission hole 13 is 0.5 mm. The vertical distance between the position of the scent transmission hole on the inner surface of the prey holding device and the inner bottom surface of the prey holding device and the aperture of the scent transmission hole can prevent prey from crawling out of the scent transmission hole on the side wall of the prey holding device.

[0038] As a preferred embodiment, the volume ratio of the natural enemy holding device 11 and the prey holding device 12 is between 30 / 17 and 30 / 21. This volume ratio is set according to the size of the natural enemy and the prey, and is most suitable for coercion.

[0039] Optimally, the volume of the natural enemy holding device 11 is 300 ml, and the volume of the prey holding device 12 is 190 ml.

[0040] As a preferred embodiment, the inner bottom surface of the natural enemy holding device 11 is a non-slip bottom surface, which can increase the friction between the natural enemy and the inner bottom surface of the natural enemy holding device 11, which is conducive to the natural enemy turning over and preventing the natural enemy from not being able to find a foothold to turn over after turning over, resulting in its death.

[0041] To save costs, as a preferred embodiment, the natural enemy holding device 11 is made of transparent PVC, and anti-slip grooves are provided on the inner bottom surface of the natural enemy holding device 11 to form an anti-slip bottom surface. Of course, anti-slip particles can also be provided on the inner bottom surface of the natural enemy holding device, but this will not be described in detail in the present invention.

[0042] As a preferred embodiment, the natural enemy holding device 11 includes a cylinder with an opening at one end and a cylinder cover corresponding to the opening of the cylinder ( Figure 1 、 Figure 2 and Figure 4 (These are all structural diagrams without the cylinder cover.) The cylinder body and cylinder cover can be detachably connected, such as by hinges, snaps, or threads, to facilitate the insertion and removal of natural enemies, as well as the insertion and removal of the prey holding device, thereby facilitating counting. The air inlet of the natural enemy holding device 11 is provided on the cylinder cover.

[0043] As a preferred embodiment, the diameter of the cylinder of the natural enemy holding device 11 is 60 mm and the height is 100 mm. The diameter of the air inlet of the natural enemy holding device 11 is 0.5 mm to ensure sufficient oxygen.

[0044] As a preferred embodiment, the prey holding device 12 includes a cylinder body with an opening at one end and a cylinder cover corresponding to the opening of the cylinder body. The cylinder body and the cylinder cover are detachably connected, such as hinged, snap-fitted or threaded, to facilitate the putting in and taking out of prey. The cylinder cover is a gauze, and the small holes on the gauze serve as air inlets.

[0045] As a preferred embodiment, the body of the prey holding device 12 has a diameter of 30 mm and a height of 40 mm. The cover of the prey holding device 12 is a 65-mesh gauze, and each mesh of the gauze has a diameter of 20 mm, which can increase air permeability and prevent predators from entering. To save costs, as a preferred embodiment, the prey holding device 12 is made of transparent PVC.

[0046] The natural enemy holding device 11 and the prey holding device 12 may also be made of other materials, such as glass or resin, etc., and the present invention does not impose any limitation on this.

[0047] The natural enemy holding device 11 and the prey holding device 12 may also be in other shapes such as a rectangle, a square, etc., and the present invention does not limit this.

[0048] It is worth noting that the prey holding device 12 and the natural enemy holding device 11 are not connected, and the prey holding device 12 is directly placed in the natural enemy holding device 11. Of course, a clamping device corresponding to the prey holding device 12 can also be set at the bottom of the natural enemy holding device 11, and the prey holding device 12 can be placed in the clamping device to ensure the stability of the prey holding device.

[0049] The prey inlet can be set on the side or other positions of the prey holding device 12, and the natural enemy inlet can be set on the side or other positions of the natural enemy holding device 11, which is not limited in the present invention.

[0050] The natural enemy stress device for stored-grain pests described in the present invention can select the yellow flower bug, a natural enemy of stored-grain pests, as the natural enemy, and the stored-grain pest booklice as prey to carry out natural enemy stress experiments; it can be understood that the natural enemy stress device for stored-grain pests described in the present invention is also applicable to stored-grain pests such as the red flour beetle, the rusty red flour beetle, the insectivorous booklice, and the grain borer.

[0051] It should be noted that the above embodiments illustrate rather than limit the present invention, and that those skilled in the art may design alternative embodiments without departing from the scope of the appended claims. The word "comprising" does not exclude the presence of elements or steps not listed in a claim.

[0052] The above embodiments are only suitable for illustrating the present invention, and are not intended to limit the present invention. Ordinary technicians in the relevant technical field may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the present invention. The scope of patent protection of the present invention should be defined by the claims.

Claims

1. A device for forcing natural enemies of stored-grain pests, characterized in that: include: prey holding devices and predator holding devices; The prey holding device is inside the natural enemy holding device, and the prey holding device includes a cylinder body with an opening at one end and a cylinder cover corresponding to the opening of the cylinder body, the cylinder body and the cylinder cover are detachably connected, the cylinder cover is a gauze, and the prey holding device is provided with a prey inlet, an air inlet, an odor transmission hole and a visual window, and the small holes on the gauze serve as the air inlet; The natural enemy holding device is provided with a natural enemy inlet and an air inlet. The natural enemy holding device includes a cylinder body with an opening at one end and a cylinder cover corresponding to the opening of the cylinder body. The cylinder body and the cylinder cover are detachably connected. The air inlet of the natural enemy holding device is provided on the cylinder cover. A clamping device corresponding to the prey holding device is provided at the bottom of the natural enemy holding device, and the prey holding device is placed in the clamping device. The scent transmission hole penetrates the side wall of the prey holding device; The vertical height of the scent transmission hole on the outer surface of the prey holding device is greater than the vertical height of the scent transmission hole on the inner surface of the prey holding device, and the angle between the center line of the scent transmission hole and the axis of the prey holding device is between 0-90 degrees; The vertical distance between the position of the scent transmission hole on the inner surface of the prey holding device and the inner bottom surface of the prey holding device is between 8-12 mm, and / or the aperture of the scent transmission hole is between 0.3-0.7 mm; Anti-slip notches are provided on the inner bottom surface of the natural enemy containing device.

2. The natural enemy forcing device for stored-grain pests according to claim 1, characterized in that: The included angle between the center line of the scent transmission hole and the axis of the prey holding device is 60°.

3. The natural enemy forcing device for stored-grain pests according to claim 1, characterized in that: The vertical distance between the position of the odor transmission hole on the inner surface of the prey holding device and the inner bottom surface of the prey holding device is 10 mm, and the aperture of the odor transmission hole is 0.5 mm.

4. The natural enemy forcing device for stored-grain pests according to claim 1, characterized in that: The volume ratio of the natural enemy holding device to the prey holding device is between 30 / 17 and 30 / 21.

5. The natural enemy forcing device for stored-grain pests according to claim 4, characterized in that: The volume of the natural enemy holding device is 300 ml, and the volume of the prey holding device is 190 ml.

6. The natural enemy forcing device for stored-grain pests according to claim 1, characterized in that: The natural enemy containing device is made of transparent PVC material.

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