A multiple repelling and blocking structure for preventing whitefly disease
By installing insect-proof netting and silver-gray film on the outside of the greenhouse, planting repellent crops on the inside, and hanging insect-proof devices, a multi-layered protective structure is formed, which solves the problem of poor control of whiteflies in greenhouses and achieves the effect of reducing the use of chemical pesticides and the spread of viruses.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIHAI INST OF AGRI SCI
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-21
Smart Images

Figure CN224521913U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of agricultural insect control devices, and specifically relates to a multi-layered repellent and barrier structure for preventing whiteflies. Background Technology
[0002] The tobacco whitefly (scientific name: *Bemisia tabaci*) is an insect belonging to the genus *Bemisia* in the family Amycidae of the order Hemiptera, commonly known as the "whitefly." Adult tobacco whiteflies exhibit a tendency to be attracted to tender, yellow, or yellowish-green plants, and also display strong gregariousness. They are most active and destructive in warm, windless weather. Both adults and nymphs pierce and suck the sap of their hosts. The tobacco whitefly has a very wide host range, damaging over four hundred plant species, including tomatoes, cucumbers, zucchini, eggplants, beans, cruciferous vegetables, fruit trees, flowers, and cotton.
[0003] Whiteflies are intolerant of low temperatures but can overwinter in greenhouses and double-layered plastic film sheds. Therefore, it is necessary to strengthen the control of whiteflies in greenhouses during the overwintering period. Currently, the main measures for controlling whiteflies in greenhouses include setting up insect-proof netting, using yellow sticky traps or red-yellow grid traps inside the greenhouse, and using chemical pesticides. Due to the migratory and reproductive capabilities of whiteflies, and their increasing resistance to pesticides year by year, the cost of chemical pesticide control has increased significantly, which is detrimental to the cultivation of greenhouse vegetables. Therefore, for greenhouse vegetables, it is necessary to strengthen the control of whiteflies through physical barriers to reduce the damage caused by whiteflies feeding on crops and spreading viruses. Utility Model Content
[0004] The purpose of this invention is to provide a multi-layered repellent and barrier structure for controlling whiteflies, thereby solving the problems of poor barrier effect and the need for large amounts of chemical pesticides in existing greenhouse whitefly control methods.
[0005] To achieve the above objectives, this utility model provides a multi-layered repellent and barrier structure for preventing whiteflies, comprising a greenhouse body, an insect-proof net installed around the outer perimeter of the greenhouse body, a silver-gray film fixed to the outer side of the insect-proof net, the silver-gray film being positioned in the lower middle part of the insect-proof net, and repellent crops planted on the ground around the inner perimeter of the greenhouse body. The silver-gray film is a thin, silver-gray film with reflective and insect-repelling effects, effectively repelling whiteflies. By setting up an insect-proof net around the greenhouse body and placing the silver-gray film on the lower outer side of the insect-proof net, while simultaneously planting celery, onions, leeks, etc., which have repellent effects, around the inner perimeter of the greenhouse body, a multi-layered barrier against whiteflies can be achieved.
[0006] Preferably, the ground around the outer perimeter of the greenhouse is covered with black or silver weed control fabric. This fabric can suppress weed growth, reduce pest habitats, and also, to some extent, block and repel pests such as whiteflies.
[0007] Preferably, a U-shaped ground stake pad is provided at the junction of the weed control fabric and the silver-gray film.
[0008] Preferably, the repellent crop is at least one of celery, scallion, and leek.
[0009] Preferably, black or silver weed control fabric is laid on the ground inside the avoidance crop.
[0010] Preferably, the insect-proof net has a mesh size of 60 or 80. A 60 or 80 mesh insect-proof net can effectively block whiteflies without significantly affecting airflow in the greenhouse.
[0011] Preferably, the height of the silver-gray film is 80-100cm. This provides good light-repelling properties without affecting the light exposure of crops inside the greenhouse.
[0012] Preferably, insect-proof devices are suspended at intervals inside the greenhouse body.
[0013] Preferably, the insect-repelling device is a yellow or red-yellow checkered insect trap. The yellow or red-yellow checkered insect trap can attract and trap pests such as whiteflies and aphids.
[0014] Preferably, the insect-repellent device includes a bottle body and insect-repellent tape, the insect-repellent tape being adhered to the outside of the bottle body. The insect-repellent tape is commercially available, such as yellow insect-repellent tape.
[0015] Compared with existing technologies, this utility model has the following beneficial effects: 1. This utility model creates a triple protection system by installing an insect-proof net on the outside of the greenhouse body and setting a silver-gray film on the lower part of the outer side of the insect-proof net. At the same time, planting repellent crops such as celery, onions, and leeks on the ground inside the greenhouse body can also create a triple protection system. The silver-gray film can reflect silver-gray light, which has a repellent effect on whiteflies. Combined with the strong repellent crops and the insect-proof net, it can prevent whiteflies from entering the greenhouse and spreading viruses.
[0016] 2. This utility model improves the airtightness of the greenhouse by laying black or silver weed control fabric on the ground outside the greenhouse and sealing the black or silver weed control fabric with silver-gray film through black molding lines, thereby reducing the entry of pests such as whiteflies into the greenhouse. The black or silver weed control fabric can also inhibit the growth of weeds and reduce the habitat of whiteflies, thereby reducing the insect population base for virus transmission.
[0017] 3. This utility model also includes hanging insect-proof devices inside the greenhouse to trap pests. The insect-proof devices can be yellow or red-yellow checkered insect-proof boards, which can trap pests such as whiteflies and aphids. The insect-proof devices can also be made by attaching insect-proof tape to the outside of mineral water bottles to further improve the insect-proof effect. Attached Figure Description
[0018] Figure 1This is a schematic diagram of the external structure of the multi-layered repellent and barrier structure for preventing whiteflies.
[0019] Figure 2 This is a schematic diagram of the internal structure of the greenhouse with its multiple repellent and barrier structure for preventing whiteflies.
[0020] Figure 3 This is a top-view cross-sectional view of the multi-layered repellent and barrier structure for preventing whiteflies.
[0021] Explanation of key figure labels: 1. Greenhouse body; 11. Steel frame structure; 12. Plastic film; 2. Insect-proof net; 3. Silver-gray film; 4. Weed-proof cloth; 5. Repellent crops; 6. Insect-proof device. Detailed Implementation
[0022] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.
[0023] Example 1 like Figure 1-2 As shown, a multi-layered repellency and barrier structure for controlling whiteflies includes a greenhouse body 1. The greenhouse body 1 is a conventional vegetable greenhouse, comprising a steel frame structure 11 and a plastic film 12, etc. This application does not involve structural improvements to the greenhouse body 1 and will not be described in detail here. The main inventive point of this application is that: barrier and repellency structures are simultaneously set on the outer and inner peripheries of the greenhouse body 1, which can effectively prevent pests such as whiteflies from entering the greenhouse and spreading viruses, solving the problem of poor barrier effects and the need for large amounts of chemical pesticides in existing greenhouse whitefly control methods.
[0024] like Figure 1 As shown, this application directly installs insect-proof netting 2 around the steel frame structure 11 of the greenhouse body 1, and fixes the insect-proof netting 2 to the steel frame structure 11 using slots or the like. Then, an 80cm high silver-gray film 3 is added to the lower outer part of the insect-proof netting 2, and the silver-gray film 3 is further fixed to the steel frame structure 11 using slots or the like. Of course, in other embodiments, support rods can also be set at intervals around the outer perimeter of the greenhouse body 1, with the insect-proof netting 2 and silver-gray film 3 fixed to the support rods, thus surrounding the greenhouse body 1. In this embodiment, the insect-proof netting 2 uses 60 or 80 mesh, which can effectively block whiteflies without significantly affecting the ventilation of the greenhouse. The silver-gray film can reflect silver-gray light, which has a repellent effect on pests such as whiteflies. The height of the silver-gray film 3 should be set at 80-100cm, which can effectively repel pests such as whiteflies and prevent the spread of diseases without affecting the light exposure of crops inside the greenhouse.
[0025] Furthermore, a black weed control fabric 4 is laid on the ground around the outer perimeter of the greenhouse body 1. The junction of the black weed control fabric 4 and the silver-gray film 3 is further sealed with U-shaped ground nail washers. The U-shaped ground nail washers are purchased commercially, and the U-shaped ground nails penetrate both the weed control fabric 4 and the silver-gray film 3, and are then fixed in place by the washers. The laying of the black weed control fabric 4 can suppress the growth of weeds, reduce the habitat of pests, and reduce the possibility of pests migrating. The seal between the black weed control fabric 4 and the silver-gray film 3 by the U-shaped ground nail washers improves the airtightness of the bottom of the greenhouse, reducing the entry of pests such as whiteflies into the greenhouse through ground gaps. In other embodiments, the black weed control fabric 4 can be replaced with a silver weed control fabric, or silver strips of cloth can be laid on the black weed control fabric, as silver has a stronger repellent effect on whiteflies.
[0026] Combination Figure 2-3 The ground around the inner perimeter of the greenhouse body 1 is planted with repellent crops 5. The repellent crops 5 include celery, scallions, and chives. Celery, scallions, and chives have a pungent smell that repels pests such as whiteflies.
[0027] Furthermore, insect-repellent devices 6 are suspended at intervals inside the greenhouse body 1. In this embodiment, the insect-repellent device 6 is a yellow or red-yellow checkered insect-attracting board. The yellow or red-yellow checkered insect-attracting board can trap pests such as whiteflies and aphids. In other embodiments, the insect-repellent device 6 can also be a method of attaching insect-repellent tape to the outside of a mineral water bottle to further improve the insect-repellent effect.
[0028] In other embodiments, to further enhance the insect-proof effect, the greenhouse body 1 adopts a double-door design, i.e., a transition area is provided at the greenhouse entrance, and the plastic film 12 and insect-proof net 2 of the greenhouse body 1 are installed around and at the base of the transition area. An inner entrance and an outer entrance are respectively provided on the two opposite sides of the transition area. A water basin can be placed in the transition area to repel whiteflies (whiteflies prefer dry environments), preventing them from entering the greenhouse through the entrance. Preferably, a silver-gray film 3 is installed on the inner entrance and the outer entrance to further enhance the repellency effect at the greenhouse entrance.
[0029] The greenhouse facilities at the Beihai Agricultural Technology Service Center's experimental site were modified. First, 60 or 80-mesh insect-proof netting 2 was installed around the existing greenhouse. Then, an 80-100cm high silver-gray film 3 was installed outside the insect-proof netting 2. Black weed-control fabric 4 was laid on the ground around the outer perimeter of the greenhouse, with the inner edge of the fabric adhered to the silver-gray film 3. The land around the inner perimeter of the greenhouse was prepared, and repellent crops such as celery, onions, and leeks were planted 5. Finally, yellow or red-yellow checkered insect traps were hung to further control the whiteflies, depending on their presence in the greenhouse.
[0030] In summary, this utility model, by adding an insect-proof net 2 to the outside of the greenhouse body 1 and setting a silver-gray film 3 on the lower part of the outside of the insect-proof net 2, and simultaneously planting repellent crops 5 such as celery on the ground inside the greenhouse body 1, can form a triple protection. The silver-gray film reflects silver-gray light, which has a repellent effect on whiteflies. Combined with the highly irritating repellent crops 5 and the insect-proof net 2, it can prevent whiteflies from entering the greenhouse and spreading viruses. This application can also lay black or silver weed-control cloth 4 on the ground outside the greenhouse to suppress weed growth and reduce whitefly habitats, thereby reducing the insect population base for virus transmission. Furthermore, yellow or red-yellow checkered insect-attracting boards 6 can be hung inside the greenhouse to further prevent whiteflies. This device is suitable for improving existing greenhouse facilities.
[0031] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.
Claims
1. A multi-layered repellent and barrier structure for preventing whiteflies, comprising a greenhouse body, characterized in that, The greenhouse body is equipped with an insect-proof net around its outer perimeter. A silver-gray film is fixed to the outside of the insect-proof net and is located in the lower middle part of the insect-proof net. Repellent crops are planted on the ground around the inner perimeter of the greenhouse body.
2. The multi-layered repellent and barrier structure for preventing disease in whiteflies according to claim 1, characterized in that, The ground around the outside of the greenhouse is covered with black or silver weed control fabric.
3. The multi-layered repellent and barrier structure for preventing whiteflies according to claim 2, characterized in that, A U-shaped ground stake washer is provided at the junction of the weed control fabric and the silver-gray film.
4. The multi-layered repellent and barrier structure for preventing whiteflies according to claim 1, characterized in that, The repellent crop is at least one of celery, scallion, and leek.
5. The multi-layered repellent and barrier structure for preventing whiteflies according to claim 1, characterized in that, Black or silver weed control fabric is laid on the ground inside the avoidance crop.
6. The multi-layered repellent and barrier structure for preventing disease in whiteflies according to claim 5, characterized in that, The insect-proof netting has a mesh size of 60 or 80.
7. The multi-layered repellent and barrier structure for preventing disease in whiteflies according to claim 1, characterized in that, The height of the silver-gray film is 80-100cm.
8. The multi-layered repellent and barrier structure for preventing whiteflies according to claim 1, characterized in that, Insect-proof devices are suspended at intervals inside the greenhouse.
9. The multi-layered repellent and barrier structure for preventing disease in whiteflies according to claim 8, characterized in that, The insect-repelling device is a yellow or red-yellow grid insect-attracting board.
10. The multi-layered repellent and barrier structure for preventing whiteflies according to claim 8, characterized in that, The insect-proof device includes a bottle body and an insect-proof tape, which is attached to the outside of the bottle body.