A moisture-retaining device for leaves of plants used in indoor experiments with aphids

Abstract

This invention provides a leaf moisturizing device for indoor aphid experiments, comprising: a cup body and a cup lid. The cup lid covers the top of the cup body, and a cup lid hole is provided at the center of the top of the cup lid. A water storage tube protruding upwards is installed on the cup lid hole. A high-density sponge is installed at the bottom opening of the water storage tube. The plant leaf stem or the entire plant stem is placed inside the high-density sponge, and the plant leaf stem or the entire plant stem extends downwards into the cup body. Nutrient solution is loaded in the water storage tube above the high-density sponge. This leaf moisturizing device for indoor aphid experiments has a simple structure and is easy to install and use. It can solve the problem of insufficient leaf moisturizing time and leaf wilting caused by ordinary leaf disc methods. It can also solve the problem of aphids dying after escaping and coming into contact with the liquid, thus affecting the statistics. It is especially suitable for the early effect exploration and coarse screening of large quantities of raw materials and agents, and for situations requiring a large number of treatment groups.

Description

Technical Field

[0001] This utility model relates to the field of moisturizing devices, specifically to a moisturizing device for the leaves of plants used in indoor experiments with aphids. Background Technology

[0002] Aphids, also known as plant lice or honeydew insects, are among the most prolific insects on Earth. Despite their tiny size (about 1-2 millimeters), they can reproduce in as little as 10 days, with a single female aphid producing billions of offspring annually. They reproduce parthenogenetically without mating. Their piercing-sucking mouthparts can penetrate plant epidermis, specifically targeting tender leaves, stems, and buds to feed on sap, causing leaves to curl, growth to stagnate, and even the entire plant to die. More dangerously, their honeydew secretions can induce sooty mold and transmit over 40 diseases, including cucumber mosaic virus, causing indirect harm far exceeding the damage from direct ingestion.

[0003] Currently, most indoor bioassay experiments on aphids primarily use leaf disc spraying and pot spraying methods. However, pot spraying increases workload and the number of treatment groups when coarsely screening large quantities of active ingredients or formulations, making it less than ideal for such experiments. Leaf disc spraying requires perforating plant leaves to create discs, which are then placed on a damp sponge for moisture retention. This presents a challenge: some active ingredients or formulations repel aphids, causing them to flee and leaving dead aphids on the damp sponge. This affects the final mortality rate, making it impossible to determine whether the aphids died from the pesticide or from being unable to escape after getting wet. Furthermore, the need to perforate leaves for the leaf disc method, coupled with the fact that aphids are piercing-sucking insects, often leads to rapid water loss from the leaf discs, resulting in short observation periods and difficulty in observing the duration of effectiveness. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention proposes a leaf moisturizing device for indoor aphid experiments. It has a simple structure, is easy to install and use, and can solve the problem of insufficient leaf moisturizing time and leaf wilting caused by the ordinary leaf disc method. It is especially suitable for situations where a large number of raw materials and agents are needed for preliminary effect exploration and coarse screening, and where a large number of treatment groups are required.

[0005] To achieve the above technical solution, this utility model provides a moisture-retaining device for the leaves of plants used in indoor aphid experiments, comprising: a cup body and a cup lid, wherein the cup lid is fitted onto the top of the cup body, a cup lid hole is provided at the center of the top of the cup lid, a water storage tube protruding upward is installed on the cup lid hole, a high-density sponge is installed at the bottom opening of the water storage tube, the plant leaf stem or the entire plant stem is placed inside the high-density sponge, and the plant leaf stem or the entire plant stem extends downward into the cup body, and nutrient solution is loaded in the water storage tube above the high-density sponge.

[0006] In the above technical solution, during actual operation, a certain amount of nutrient solution is loaded into the water storage tube. Then, a high-density sponge is used to wrap the stem and leaf area of ​​the plant, or the tail end of the entire plant stem (with the front end of the plant stem and leaf area exposed by the high-density sponge). The high-density sponge wrapped around the tail end of the plant stem and leaf area is inserted into the opening of the water storage tube, sealing the nutrient solution inside. The water storage tube is then inverted and inserted into the center hole of the cup lid, ensuring that the exposed stem and leaf area extends downwards into the cup body. The stem and leaf area can absorb the nutrient solution through the high-density sponge without dripping into the cup body, thus achieving the effect of moisturizing the stem and leaf area. The water storage tube is then placed on a test tube rack or fixed frame, awaiting unified spraying. After treating the prepared plant leaves and stems, or the entire plant stem, with different pesticides, the lids of the cups are attached to the cups, and the cups are placed on the experimental table, thus forming one treatment group. Inside the cups, aphids that come into contact with the pesticides will either die, be paralyzed, or avoid them, falling into the cups. Because of the lids, the aphids cannot escape, and the high-density sponge in the water storage tubes prevents leakage of the nutrient solution, preventing the aphids from coming into contact with other liquids. This eliminates the influence of aphids escaping and dying from contact with liquids as in the conventional leaf disc method, greatly improving the reliability of the pesticide experiment results.

[0007] Preferably, a thin film is installed at the junction of the bottom opening of the water storage pipe and the cup lid hole at the center of the top of the cup lid. In actual operation, after the water storage pipe is inserted, the thin film serves to prevent aphids from escaping.

[0008] Preferably, both the cup body and the cup lid are made of transparent material, which allows the plant leaves and stems or the entire plant stem to carry out photosynthesis normally in the cup body, and the aphids in the treatment group can also receive light normally.

[0009] The beneficial effects of the indoor aphid experiment plant leaf moisturizing device provided by the utility model are as follows: The device has a simple structure, reasonable design, and is easy to assemble and use. It can solve the following three problems in the existing technology: (1) the leaf moisturizing time of the ordinary leaf disc method is not long enough, and the leaves wilt; (2) the statistical analysis of the influencing factors of aphids dying after escaping and coming into contact with liquid; (3) the large number of treatment groups and huge workload in potted plant experiments. It is especially suitable for situations where a large number of raw materials and agents are needed for preliminary effect exploration and screening, and a large number of treatment groups are required. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0011] Figure 2 This is a top view of the cup lid in this utility model.

[0012] Figure 3 This is a three-dimensional structural diagram of the water storage pipe of the moisturizing device in this utility model.

[0013] In the picture: 1. Cup body; 2. Cup lid; 3. Water storage tube; 21. Film; 31. High-density sponge. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0015] Example: A leaf moisturizing device for indoor experimental plants of aphids.

[0016] Reference Figures 1 to 3 As shown, an indoor experimental plant leaf moisturizing device for aphids includes: a cup body 1, a cup lid 2, and a water storage tube 3. The cup lid 2 covers the top of the cup body 1, and a cup lid hole is provided at the center of the top of the cup lid 2. The upward-protruding water storage tube 3 is installed on the cup lid hole. The thickness of the water storage tube 3 matches the size of the cup lid hole, ensuring a stable connection and preventing it from falling off. A high-density sponge 31 is installed at the bottom opening of the water storage tube 3. The plant leaf stem is placed inside the high-density sponge 31, and the plant leaf stem extends downward into the cup body 1. Nutrient solution is loaded inside the water storage tube 3 above the high-density sponge 31. A thin film 21 is installed at the junction of the bottom opening of the water storage tube 3 and the cup lid hole at the center of the top of the cup lid 2. In actual operation, after the water storage tube 3 is inserted into the cup lid hole, the thin film 21 seals the junction and prevents aphids from escaping. Both the cup body 1 and the cup lid 2 are made of transparent material, which allows the plant leaves and stems to carry out photosynthesis normally in the cup body 1, and the aphids in the treatment group can also receive light normally.

[0017] This embodiment uses the cabbage aphid as an example. In the preliminary preparation for the indoor aphid experiment using the leaf disc method, healthy radish seedling leaves with robust leaves are selected as the aphid-parasitizing leaves. A certain number of radish leaves are cut and set aside. A certain amount of nutrient solution is added to the water storage tube 3. The stem of the radish leaf is gently wrapped with a high-density sponge 31 and then inserted into the water storage tube 3, so that the stem of the radish leaf can fully contact the nutrient solution and keep the leaf moist for a long time. The high-density sponge not only wraps the stem of the radish leaf, reducing stem breakage, but also prevents the nutrient solution from leaking out.

[0018] The water storage tube 3, with radish leaves already placed on it, is passed through the center hole of the lid 2. The diameter of the lid hole is appropriate for the thickness of the water storage tube 3 to prevent it from slipping off. After connecting the water storage tube 3 and the lid 2, the water storage tube 3 is placed on a test tube rack or fixed frame, awaiting unified spraying. After treating the prepared radish leaves with different pesticides, the lid 2 of the sprayed radish leaves is attached to the cup body 1, and the cup body 1 is placed on the experimental table, thus forming one treatment group. Inside the cup body 1, aphids that come into contact with the pesticide will either die, be paralyzed, or avoid it, falling into the cup body 1. Due to the cover of the lid 2 and the film 21, the aphids cannot escape. The water storage tube 3 also has a high-density sponge 31 to prevent leakage of the nutrient solution, preventing aphids from coming into contact with other liquids. This eliminates the influence of aphids escaping and dying due to contact with liquids in the conventional leaf disc method, greatly improving the reliability of the pesticide experiment results.

[0019] This indoor aphid experiment plant leaf moisturizing device has a simple structure and is easy to install and use. It can solve the problem of insufficient leaf moisturizing time and leaf wilting caused by the ordinary leaf disc method. It can also solve the problem of aphids dying due to contact with liquid after escaping, which affects the statistics. It is especially suitable for large-scale exploration and screening of the effects of raw materials and agents in the early stage, and for situations where a large number of treatment groups are required.

[0020] The above description is only a preferred embodiment of the present utility model. However, the present utility model should not be limited to the content disclosed in the embodiment and the accompanying drawings. Therefore, any equivalent or modified embodiments made without departing from the spirit disclosed in the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An aphid indoor experimental plant leaf blade moisturizing device, comprising: The cup body and the cup cover are characterized in that: a cup cover hole is arranged at the center of the top of the cup cover, an upwardly protruding water storage tube is mounted on the cup cover hole, a high-density sponge is mounted at the bottom tube opening of the water storage tube, a plant leaf stem or an entire plant stem is placed in the high-density sponge, and the plant leaf stem or the entire plant stem extends downward into the cup body, and a nutrient solution is loaded in the water storage tube above the high-density sponge.

2. The aphid indoor experimental plant leaf moisturizing device as described in claim 1, characterized in that: A film is mounted at the joint of the bottom tube opening of the water storage tube and the cup cover hole arranged at the center of the top of the cup cover.

3. The aphid indoor experimental plant leaf moisturizing device as described in claim 1, characterized in that: The cup body and the cup cover are both made of transparent material.

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