Insect oviposition trapping device and method for prevention and control

Abstract

The invention discloses an insect oviposition trapping device and method for prevention and control, and the trapping device comprises a wool felt (1) which is compressed into a corrugated shape, a group of bristles (2) which are sewed at the two ends of the wool felt (1) respectively, a supporting rod (3) and a plastic film (4). The egg laying trapping device induces codling moths to lay eggs in the device, concentratedly destroys the eggs and trapped adults, has the characteristics of simple structure and recyclability, can reduce the use of chemical pesticides, ensures the food safety and quality, and reduces the prevention and control cost while controlling the occurrence amount of pests.

Description

Technical Field

[0001] The invention relates to the technical field of forestry and fruit industry, and in particular to an insect egg-laying trapping device and method for prevention and control. Background Art

[0002] At present, the pest control in the fruit and forest industry mainly relies on chemical control. This method is widely used because it is effective in a short time. However, with the abuse of chemical agents, many ecological and environmental problems have been caused. At the same time, the resistance of pests has increased with the use of chemical agents, and the effective period of chemical control has been greatly reduced. Therefore, the use of physical control is of great significance to reduce the occurrence of pests and diseases, ensure food safety, and delay the development of pest resistance.

[0003] Physical control often uses attractants such as sticky insect color plates, insecticidal lamps, and new traps for trapping and control, mainly including: (1) light trapping, that is, using frequency vibration lamps, black lights, and fluorescent lamps to lure and kill insects; (2) sex pheromones, that is, using artificially synthesized or extracted sex pheromones from insects to lure insects of the opposite sex; (3) chemical trapping, that is, using chemical attractants such as sweet and sour, methyl eugenol, etc. to lure insects; (4) plant trapping, that is, using artificially cultivated plants to lure insects and reduce the damage rate of pests on crops; (5) yellow board trapping, that is, using the insect's tendency to specific colors to lure and kill insects with yellow sticky boards.

[0004] In Chinese patent application CN118844404A, a natural enemy-friendly insect attracting light source and insect attracting device and its application are disclosed. The present invention discloses an insect attracting light source with a combined wavelength of 365nm+385nm+605nm, which has a good attracting effect on pests, especially on fall armyworm; and the light source with the combined wavelength is relatively friendly to other insects or natural enemy insects except pests, mainly manifested in that the attracting effect on other insects except pests is relatively weak. The combined wavelength light source is combined with a wind suction device, a broken line insect collection channel and a natural enemy escape port, which can effectively reduce the escape of pests and further protect natural enemy insects or neutral insects.

[0005] For another example, Chinese authorized patent CN110024762B discloses an insect trap that can be used for hanging, characterized in that: the insect trap includes a first cavity for containing insecticide and a box for containing attractant, and also includes a second cavity for accommodating the box, the second cavity has an opening for placing or removing the box, and the second cavity is located in the first cavity; the opening of the second cavity includes a first opening located in the first cavity and a second opening located at the bottom of the first cavity; the first cavity has an opening for injecting insecticide, and the opening of the first cavity faces the same direction as the first opening; a partition for enclosing the second cavity is provided in the first cavity, one end of the partition is a connecting end connected to the first cavity, and the other end of the partition is a free end, and the free end of the partition encloses the first opening; the connecting end of the partition is located at the second opening, The second opening has the same size and shape as the connecting end of the partition; the free end of the partition is located in a plane parallel to the bottom of the first cavity; the center line of the first cavity and the center line of the second cavity are located on the same straight line; the first cavity is provided with a drainage hole on the side wall, and the first opening is located above the drainage hole; the insect trap also includes a hanging member and a connecting rod, and a sex attractant or a sticky insect board is hung on the hanging member, and the sex attractant or the sticky insect board is located above the liquid surface of the insecticide in the first cavity; the insect trap also includes a cover body for covering the first opening, the cover body is provided with a through hole, the cover body has a limiter for limiting the relative position of the cover body and the second cavity, the limiter is located on the back of the cover body, the limiter includes a first baffle and a second baffle, when the cover body covers the first opening, the first baffle is located outside the first opening, and the second baffle is located inside the first opening.

[0006] The main targets of the above methods are all adult insects, and the cost is relatively high. However, egg laying is the first step for pests to cause damage, and the hatched larvae are the main damagers. Inducing insects to lay eggs on non-plant devices can greatly reduce the amount of insect eggs on protected plants and effectively reduce pest damage. Summary of the invention

[0007] In view of the shortcomings of existing insect trapping devices, the present invention provides an insect egg trapping device and method for prevention and control. In order to achieve the purpose of the present invention, the following technical solutions are proposed:

[0008] On one hand, the present invention relates to a trapping device for preventing and controlling insect eggs, comprising a wool felt (1) compressed into a corrugated shape, a group of bristles (2) sewn to the two ends of the wool felt (1), a support rod (3) and a plastic film (4); the bristles (2) at the upper end of the wool felt (1) are sewn to the wool felt (1) at an angle of 40-50 degrees downward, and the bristles (2) at the upper end of the wool felt (1) are sewn to the wool felt (1) at an angle of 40-50 degrees upward. On the wool felt (1), the bristles (2) are clustered and sewn into the concave part of the corrugated wool felt (1); the plastic film (4) is located between the bristles (2) at the upper and lower ends, and the length of the bristles is more than twice the thickness of the wool felt; the plastic film (4) is located on the inner side of the wool felt (1) compressed into a corrugated shape and is fixed by the bristles at the upper and lower ends; the support rod (3) is located at the upper and lower ends of the wool felt (1) and is used to fix the wool felt (1) on the tree trunk; the wool felt (1) is pink.

[0009] In a preferred embodiment of the present invention, the angle between the bristles (2) and the wool felt (1) is 44-46°. At this preferred angle, it is possible to prevent the adult codling moth from crawling out of the wool felt after laying eggs, thereby further improving the trapping efficiency.

[0010] In a preferred embodiment of the present invention, the upper end of the support rod has a hook, through which the trapping device is fixed to the tree trunk, so as to facilitate the replacement of the plastic film in the trapping device.

[0011] In a preferred embodiment of the present invention, the plastic film is a pink plastic film. By adopting the pink plastic film, insects are attracted to enter and lay eggs.

[0012] In a preferred embodiment of the present invention, the trapping device may also be provided with a chemical attractant, and the chemical attractant is sprayed on the wool felt (1), and the chemical attractant is sugar vinegar, methyl eugenol, etc.

[0013] Another aspect of the present invention also relates to a method for trapping insect eggs for prevention and control, the method comprising installing and fixing the above-mentioned trapping device on a tree trunk, removing the plastic film from the trapping device after trapping for 10 days, and replacing it with a new plastic film.

[0014] In a preferred embodiment of the present invention, the trapping device is installed and fixed on the tree trunk at 0.5-0.8 meters.

[0015] In a preferred embodiment of the present invention, the trapping device is used to trap codling moth.

[0016] The present invention provides an egg-laying trapping device for inducing codling moth to lay eggs in the device, and centrally destroying the eggs and trapped adults. The device has the characteristics of simple structure and recyclability, and reduces the cost of prevention and control while controlling the amount of pest occurrence. The present invention can reduce the egg-laying of forest and fruit pests on fruits, thereby reducing the larval damage rate. The wide range of use of the device can reduce the use of chemical pesticides and ensure food safety and quality. In addition, the present invention can be used as a pest monitoring device. By observing the amount of eggs laid by pests in the device and the number of trapped adults, the occurrence dynamics of pests can be inferred, providing technical support for pest prediction and forecasting in agriculture and forestry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 : The effect of the trapping device installed on the tree trunk;

[0018] Figure 2 : Front view of the trapping device;

[0019] Figure 3 : Schematic diagram of the cross section of the trap installed on the tree trunk;

[0020] Figure 4 : Schematic diagram of the bristles sewn onto the corrugated wool felt in the trap;

[0021] Figure 5 : Schematic diagram of the trap replacing the spawned plastic film. DETAILED DESCRIPTION

[0022] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, technical solutions, features and effects of the present invention application are described in detail below with preferred embodiments. The specific features, structures, or characteristics of the multiple embodiments in the following description can be combined in any suitable form.

[0023] Embodiment 1:

[0024] like Figure 1-3As shown, the trapping device of the present invention comprises a wool felt (1) compressed into a corrugated shape, a group of bristles (2) sewn to the two ends of the wool felt (1), a support rod (3) and a plastic film (4), wherein the bristles (2) at the upper end of the wool felt (1) are sewn to the wool felt (1) at an angle of 45° downward, and the bristles (2) at the upper end of the wool felt (1) are sewn to the wool felt (1) at an angle of 45° upward, and the bristles (2) are clustered. The plastic film (4) is sewn to the concave part of the corrugated wool felt (1); the plastic film (4) is located between the bristles (2) at the upper and lower ends, and the length of the bristles is more than twice the thickness of the wool felt; the plastic film (4) is located on the inner side of the wool felt (1) compressed into a corrugated shape and is fixed by the bristles at the upper and lower ends; the support rod (3) is located at the upper and lower ends of the wool felt (1) and is used to fix the wool felt (1) on the tree trunk (5), and the plastic film (4) is located between the wool felt (1) and the tree trunk (5).

[0025] The main body of the trapping device of the present invention is a corrugated wool felt (1) fixed on a tree trunk (5) and a support rod, wherein the support rod fixed on the tree is connected to the support rod passing through the wool felt, and the overall effect is as follows: Figure 1 In principle, the height at which the device is fixed on the tree should be 0.5m above the ground, and the specific fixing height should be adjusted according to the height of the tree trunk.

[0026] The trapping device of the present invention is divided into three parts as a whole. The upper and lower iron wires fixed on the tree serve as the support rod 1 and the support rod 2. The middle part is the main body of the device. The wool felt is compressed into a corrugated shape for warmth and windproof. The color is pink (the light wave is 605nm), and the bright color attracts pests to lay eggs. Four iron wires are fixed between the two layers of wool felt as support rods 3, 4, 5, and 6. The upper and lower ends of the support rods 3, 4, 5, and 6 are respectively fixed with an iron wire hook hung on the support rods 1 and 2 for easy removal.

[0027] In order to make the trapping device fit the tree trunk more closely, a gasket is sewn at the upper and lower edges of the wool felt, and the angle between the gasket and the wool felt is 45 degrees, so that the sewn bristles are inclined inwards (such as Figure 3 , Figure 4 As shown). This structure makes the device have a large inlet and a small outlet, so that pests can easily enter the device but have difficulty leaving the device. While attracting pests to lay eggs, some adult insects can be trapped at the same time.

[0028] In order to reduce the use cost, a layer of pink plastic film is placed in the interlayer of the trapping device of the present invention, and the plastic film is wrapped on the tree trunk. Pests enter the device and lay eggs on the plastic film. The plastic film can be replaced regularly and the device can be simply cleaned so that the device can be recycled. When replacing the plastic film, remove the four short support rods, take out the plastic film and clamp the new plastic film between the bristles at the upper and lower ends (such as Figure 5 shown).

[0029] Embodiment 2:

[0030] Same as Example 1, except that the angle between the gasket and the wool felt is 40°, so that the stitched bristles are inclined inwards.

[0031] Embodiment 3:

[0032] Same as Example 1, except that the angle between the gasket and the wool felt is 50°, so that the stitched bristles are tilted inwards.

[0033] Comparative Example 1:

[0034] The same as Example 1, except that the angle between the gasket and the wool felt is 30°, so that the stitched bristles are inclined inwards.

[0035] Comparative Example 2:

[0036] Same as Example 1, except that the angle between the gasket and the wool felt is 60°, so that the stitched bristles are inclined inwards.

[0037] Comparative Example 3:

[0038] The same as Example 1, except that pink pure cotton textile cloth of the same thickness is compressed into a corrugated shape to replace the wool felt (1).

[0039] Embodiment 4:

[0040] The trapping devices of the above-mentioned embodiments and comparative examples were used in a forest test. 120 walnut trees were randomly divided into 6 groups, with 20 trees in each group. The trapping devices were set on the tree trunks in mid-April, the period of codling moth eggs. The lower end of the trapping device was 0.5 m from the ground. The plastic film was replaced after the trapping device was used for 10 days. The number of adult codling moths and the number of eggs laid on the plastic film were counted. The results are shown in Table 1 below.

[0041] Table 1: Statistical results (n=20)

[0042] Group Average number of codling moths Average number of eggs laid Example 1 5.3 1655 Example 2 4.3 1434 Example 3 4.6 1418 Comparative Example 1 3.2 1128 Comparative Example 2 2.7 1069 Comparative Example 3 3.1 1178

[0043] The results show that the trapping devices of Examples 1-3 of the present invention can significantly improve the trapping success rate and effectively promote the laying of eggs by codling moth on the trapping devices. In particular, Example 1 of the present invention sets the angle between the gasket and the wool felt to 45°, so that the inlet of the device is large and the outlet is small, and pests can easily enter the device, but it is difficult to leave the device. While attracting pests to lay eggs, some adult insects can be trapped at the same time.

[0044] The above disclosure is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the above claims.

Claims

1. A trapping device for insect eggs for prevention and control, characterized in that: The invention comprises a wool felt (1) compressed into a corrugated shape, a group of bristles (2) sewn to the two ends of the wool felt (1), a support rod (3) and a plastic film (4); the bristles (2) at the upper end of the wool felt (1) are sewn to the wool felt (1) at an angle of 40-50 degrees downward, and the bristles (2) at the upper end of the wool felt (1) are sewn to the wool felt (1) at an angle of 40-50 degrees upward, and the bristles (2) are clustered and sewn to the concave part of the corrugated wool felt (1); the plastic film (4) is located between the bristles (2) at the upper and lower ends, and the length of the bristles is more than twice the thickness of the wool felt; the plastic film (4) is located on the inner side of the wool felt (1) compressed into a corrugated shape and is fixed by the bristles at the upper and lower ends; the support rod (3) is located at the upper and lower ends of the wool felt (1) and is used to fix the wool felt (1) on the tree trunk; the wool felt (1) is pink.

2. The trapping device according to claim 1, characterized in that: The included angle between the bristles (2) and the wool felt (1) is 44-46°.

3. The trapping device according to claim 1, characterized in that: The upper end of the support rod is provided with a hook.

4. The trapping device according to claim 1, characterized in that: The plastic film is a pink plastic film.

5. The trapping device according to claim 1, characterized in that: The trapping device may also be provided with a chemical attractant, and the chemical attractant is sprayed on the wool felt (1).

6. The trapping device according to claim 5, characterized in that: The chemical attractant is sweet vinegar and / or methyl eugenol.

7. A method for trapping insect eggs for prevention and control, characterized in that: The method comprises installing and fixing the trapping device described in any one of claims 1 to 6 on a tree trunk, removing the plastic film from the trapping device after trapping for 10 days, and replacing it with a new plastic film.

8. The method according to claim 7, characterized in that The trapping device is installed and fixed on the tree trunk at 0.5-0.8 meters.

9. The method according to claim 7, characterized in that: The trapping device is used for trapping codling moth.

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