Improved leaf disc method device

Abstract

The utility model discloses an improved leaf disc method device which comprises a round container with an opening in the upper end, a moisturizing material layer is placed in the round container, a filter paper layer is arranged on the surface of the moisturizing material layer in an attached mode, a plurality of leaf placing areas are distributed on the surface of the filter paper layer in an annular array mode, and an observation area is arranged in the center of the surface of the filter paper layer. A protective ring is arranged above the circular container, and the depth of the circular container is larger than the sum of the thickness of the moisturizing material layer and the thickness of the filter paper layer. According to the utility model, the accuracy and the efficiency of experiments are obviously improved by improving the air permeability, the activity space and the moisture retention performance. Due to the design of the blade placing area and the observation area, man-made interference and errors are reduced, and the repeatability of the experiment is improved. The problems that in a traditional method, air permeability is poor, the activity space is small, observation is inconvenient, the moisturizing performance is poor, and leaf placement is not standard are solved. A more stable experimental environment is provided, and interference on insect behaviors is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to an experimental device, in particular to an improved leaf disc method device. BACKGROUND

[0002] In agricultural production, the feeding behavior of pests often leads to crop loss. The existing control measures often lack selectivity, which may cause harm to beneficial insects or have a negative impact on the environment. Therefore, in order to better control pests, it is necessary to study the feeding preference of pests. The traditional feeding preference experiment method adopts the traditional leaf disc method, which is to place filter paper on a culture dish, place multiple leaf pieces on the filter paper, and then place the insects to be observed on the filter paper. In order to fix the filter paper and leaf pieces, a piece of transparent glass is used to cover the filter paper and leaf pieces.

[0003] The traditional leaf disc method has many limitations: a. After the transparent glass covers the filter paper and leaf pieces, although the leaf pieces have a certain thickness, the height of the remaining activity space is relatively small, which leads to poor ventilation performance in the activity space, which is not conducive to the activity of insects, and the size of the culture dish is relatively limited, which has little effect on small insects, but has a greater effect on large insects, which is not conducive to the activity of large insects. b. When the insects hide on the back of the leaf, it is not easy to observe, and when you want to observe, you need to remove the leaf, which will affect the feeding of the insects. c. The filter paper has poor moisture retention performance, and water needs to be added intermittently, otherwise the insects may hide under the filter paper or the leaf will dry out. However, the uneven addition of water during the process will cause the leaf to move or affect the physiological activity of the insects. d. The leaf pieces are placed at equal intervals but there is no specific site to provide a prompt. SUMMARY

[0004] The purpose of the utility model is to provide an improved leaf disc method device. The device is a device with good permeability, moisture retention and convenient observation, which can allow pests to make normal feeding choices and monitor their feeding preferences at the same time, thereby providing data support for pest control.

[0005] The technical scheme of the utility model discloses an improved leaf disc method device, which comprises a circular container with an open upper end, a moisture-retaining material layer is placed in the circular container, a filter paper layer is attached to the surface of the moisture-retaining material layer, a plurality of leaf placement areas are arranged in an annular array on the surface of the filter paper layer, an observation area is arranged at the center of the surface of the filter paper layer, a protective ring is arranged above the circular container, and the depth of the circular container is greater than the sum of the thickness of the moisture-retaining material layer and the thickness of the filter paper layer.

[0006] In the improved leaf disc method device described above, the leaf placement areas are arranged at the edges of the surface of the filter paper layer.

[0007] In the improved leaf disc method device described above, the plurality of leaf placement areas are arranged at intervals.

[0008] In the aforementioned improved leaf disc method device, the diameters of the moisturizing material layer and the filter paper layer are equal to the inner diameter of the circular container.

[0009] In the aforementioned improved leaf disc method device, the depth of the circular container is 2 to 5 mm greater than the thickness of the moisturizing material layer plus the thickness of the filter paper layer.

[0010] In the aforementioned improved blade disc method device, a plurality of notches are provided on the top of the circular container.

[0011] In the aforementioned improved blade-disc method device, a protective gauze is provided on the top of the protective ring.

[0012] In the aforementioned improved blade-disc method device, the circular container and the protective ring are made of transparent materials.

[0013] In the aforementioned improved blade-disc method device, the top of the circular container is a step-shaped structure extending upward, and the bottom of the protective ring is a step-shaped structure recessed inward, and the two step-shaped structures are nested together.

[0014] Beneficial effects of the present invention: Compared with the prior art, the device of the present invention has the following advantages:

[0015] 1. Improvement of air permeability and activity space: A circular container with a protective ring is used, and a protective gauze is set on the top of the protective ring to ensure good air permeability. This solves the problem of poor air permeability of traditional culture dishes. The circular container and the protective ring are connected to each other, providing sufficient activity space, which is especially conducive to the activities of large insects.

[0016] 2. Convenient Observation: The circular container with protective ring is made of transparent material, making it easy to observe insect activity from all angles. Multiple leaf placement areas are evenly spaced on the filter paper layer to ensure a tight connection between the leaves and the filter paper layer, preventing insects from hiding on the underside of the leaves and improving observation accuracy.

[0017] 3. Improved Moisturizing: A layer of highly effective moisturizing material (such as sponge or gel) is placed at the bottom of the circular container, covered with a removable filter paper layer to prevent the leaves from drying out. This moisturizing system design reduces the frequency and unevenness of mid-process water additions, preventing leaf movement and impacting insect physiological activity.

[0018] 4. Standardized Design: Mark multiple leaf placement areas equidistantly on the filter paper layer to provide guidance on leaf placement and ensure standardization and reproducibility. Mark a 5 cm diameter observation area in the center for insect placement, ensuring the insect is at an equal distance from the leaf.

[0019] Overall, this new device significantly improves experimental accuracy and efficiency by improving air permeability, movement space, and moisture retention. The design of the leaf placement and observation areas reduces human interference and errors, improving experimental repeatability. This device overcomes the problems of poor air permeability, limited movement space, inconvenient observation, poor moisture retention, and irregular leaf placement in traditional methods. It provides a more stable experimental environment and reduces interference with insect behavior. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 Schematic diagram of the structure of the filter paper layer;

[0022] Figure 3 It is a structural diagram of a circular container;

[0023] Figure 4 Schematic diagram of the structure of the protective ring.

[0024] Reference numerals: 1-circular container, 2-moisturizing material layer, 3-filter paper layer, 4-blade placement area, 5-observation area, 6-protective ring, 7-notch, 8-protective gauze. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0026] An embodiment of the present utility model: an improved leaf disc method device, comprising a circular container 1 with an upper opening, a moisturizing material layer 2 placed in the circular container 1, the moisturizing material layer 2 can be made of sponge or gel, a filter paper layer 3 is bonded to the surface of the moisturizing material layer 2, a plurality of leaf placement areas 4 are distributed in a circular array on the surface of the filter paper layer 3, an observation area 5 is provided in the center of the surface of the filter paper layer 3, a protective ring 6 is provided above the circular container 1, the depth of the circular container 1 is greater than the thickness of the moisturizing material layer 2 plus the thickness of the filter paper layer 3, so that after the filter paper layer 3 is placed in the circular container 1, the filter paper layer 3 can be restricted by the circular container 1 to prevent the filter paper layer 3 from displacement.

[0027] In the device of the present invention, the provision of a moisturizing material layer 2 continuously provides moisture to the filter paper layer 3, ensuring that the filter paper layer 3 and the moisturizing material layer 2 are tightly attached to each other. Furthermore, the filter paper layer 3 is a detachable structure, which allows the leaves placed in the leaf placement area 4 to be moisturized for a long time, preventing the leaves from drying out. Furthermore, the leaves and the filter paper layer 3 are tightly connected, preventing insects from crawling onto the back of the leaves, making them difficult to observe. The filter paper layer 3 is marked with multiple leaf placement areas 4 arranged in a circular array. An observation area 5 is provided at the center of the surface of the filter paper layer 3. The leaf placement areas 4 are used to place different leaves, while the observation area 5 is used to place insects to be observed, thereby ensuring that the distance between the insects and each leaf placement area 4 is equal at the initial stage. A protective ring 6 is provided to prevent insects from crawling outside the circular container 1.

[0028] The leaf placement area 4 is arranged at the edge of the surface of the filter paper layer 3 to ensure that there is enough distance from the observation area 5 to each leaf placement area 4, so as to better observe the preference of insects for different leaves.

[0029] The plurality of leaf placement areas 4 are arranged at intervals. If adjacent leaf placement areas 4 are arranged closely together, insects can easily crawl from one leaf placement area 4 to another leaf placement area 4, and thus cannot judge their preference for different leaves well.

[0030] The diameters of the moisturizing material layer 2 and the filter paper layer 3 are equal to the inner diameter of the circular container 1 , ensuring that the moisturizing material layer 2 and the filter paper layer 3 will not be displaced after being placed therein.

[0031] The depth of the circular container 1 is 2 to 5 mm greater than the thickness of the moisturizing material layer 2 plus the thickness of the filter paper layer 3. The depth of the circular container 1 is greater than the thickness of the moisturizing material layer 2 plus the thickness of the filter paper layer 3. In this way, the filter paper layer 3 can be restricted by the circular container 1 to prevent displacement of the filter paper layer 3. The depth of the circular container 1 is 2 to 5 mm greater than the thickness of the moisturizing material layer 2 plus the thickness of the filter paper layer 3. Such a depth makes it easier to place the filter paper layer 3.

[0032] The top of the circular container 1 is provided with a plurality of notches 7. After gripping the filter paper layer 3 with tweezers, the tweezers are aligned with the notches 7 to horizontally place the filter paper layer 3 on the moisturizing material layer 2. The advantage of providing the notches 7 is that the top of the circular container 1 is higher than the filter paper layer 3, which will not cause the tweezers to bend the filter paper layer 3 when placing the filter paper layer 3. If the filter paper layer 3 is bent, it will not be able to maintain a close fit with the moisturizing material layer 2. It also facilitates the replacement of the filter paper layer 3 later.

[0033] A protective gauze 8 is fixedly provided on the top of the protective ring 6 to ensure air permeability while preventing some insects with strong climbing ability from climbing out of the device along the protective ring 6.

[0034] The circular container 1 and the protective ring 6 are made of transparent materials, which makes it easy to observe the situation inside the device.

[0035] The top of the circular container 1 is a step-shaped structure extending upward, and the bottom of the protective ring 6 is a step-shaped structure recessed inward. The two step-shaped structures are nested together, so that the circular container 1 and the protective ring 6 are well connected together.

Claims

1. An improved blade disc method device, characterized in that: The invention comprises a circular container (1) with an upper opening, a moisturizing material layer (2) being placed in the circular container (1), a filter paper layer (3) being laminated to the surface of the moisturizing material layer (2), a plurality of blade placement areas (4) being distributed in an annular array on the surface of the filter paper layer (3), an observation area (5) being provided at the center of the surface of the filter paper layer (3), a protective ring (6) being provided above the circular container (1), and a depth of the circular container (1) being greater than the thickness of the moisturizing material layer (2) plus the thickness of the filter paper layer (3).

2. The improved blade disk method device according to claim 1, characterized in that: The blade placement area (4) is arranged at the edge of the surface of the filter paper layer (3).

3. The improved blade disk method device according to claim 1, characterized in that: A plurality of blade placement areas (4) are arranged at intervals.

4. The improved blade disk method device according to claim 1, characterized in that: The diameters of the moisturizing material layer (2) and the filter paper layer (3) are equal to the inner diameter of the circular container (1).

5. The improved blade disk method device according to claim 1, characterized in that: The depth of the circular container (1) is 2 to 5 mm greater than the thickness of the moisturizing material layer (2) plus the thickness of the filter paper layer (3).

6. The improved blade disk method device according to claim 1, characterized in that: The top of the circular container (1) is provided with a plurality of notches (7).

7. The improved blade disk method device according to claim 1, characterized in that: A protective gauze (8) is provided on the top of the protective ring (6).

8. The improved blade-disc method device according to claim 1, characterized in that: The circular container (1) and the protective ring (6) are made of transparent material.

9. The improved blade disk method device according to claim 1, characterized in that: The top of the circular container (1) is a stepped structure extending upward, and the bottom of the protective ring (6) is a stepped structure recessed inward, and the two stepped structures are nested together.

Images