Medicated banded pine wood nematode

Abstract

This utility model relates to the field of forestry pest control technology, specifically to a drug-loaded tape for preventing pine wilt disease. It includes an integrally formed outer layer, a drug-loaded layer, an adhesive layer, and several microneedles integrally formed on the outer surface of the outer layer. An auxiliary mechanism includes multiple arc grooves around the outer layer to guide rainwater and regulate water flow paths; multiple drug-dispensing holes arrayed on the surface of the drug-loaded layer for temporary storage and release of the drug; and multiple diamond-shaped grooves on the adhesive surface of the adhesive layer to channel moisture from the tree trunk and maintain the adhesion stability of the adhesive layer. By incorporating this auxiliary mechanism, this utility model not only guides rainwater smoothly away from the outer layer during rainy weather, preventing rainwater from splashing to the edge of the adhesive layer and causing aging of the adhesive layer, but also quickly channels and discharges moisture to the outside of the adhesive layer when the tree trunk breathes or the environment is humid, preventing prolonged contact between moisture and the adhesive layer.

Description

Technical Field

[0001] This utility model relates to the field of forestry pest control technology, specifically to a drug-loaded tape for preventing pine wilt nematode. Background Technology

[0002] Drug-loaded tape for preventing pine wood nematode infection can control the infection and spread of pine wood nematodes by targeted drug release. The drug can act directly on the insect body, inhibit its activity and destroy its physiological functions, ultimately achieving the purpose of killing or blocking the insect and cutting off the path for the nematode to invade the interior from the surface of the trunk.

[0003] In the prior art, a kind of insect-repellent tape with patent publication number CN204897811U includes a PET film, an adhesive layer and a protective film stacked from top to bottom. An artemisia microcapsule foam layer is sandwiched between the PET film and the adhesive layer. The artemisia microcapsule foam layer and the PET film are bonded together by the artemisia microcapsule adhesive layer. The PET film also has evenly distributed drug penetration holes. During use, the foamed layer of the Artemisia argyi microcapsule is bonded to the PET film only through the adhesive layer of the Artemisia argyi microcapsule. The PET film has seepage holes, which makes it difficult to effectively resist rain erosion in complex outdoor environments. Rainwater can easily dissolve and wash away the Artemisia argyi microcapsules through the seepage holes, causing the medicine to be lost quickly. This makes it difficult to ensure the long-term stable release of the medicine. Not only do staff need to frequently remove the old tape and re-apply the new tape, but the plants will be in an unprotected state during the interval between the expiration of the old tape and the re-application of the new tape, creating a loophole in the prevention and control. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, this utility model provides a drug-loaded anti-pine nematode tape, which effectively solves the problem of existing technologies being unable to effectively resist rain erosion in complex outdoor environments.

[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a drug-loaded anti-pine nematode tape, including a tape body, including an integrally formed outer layer, a drug-loaded layer, an adhesive layer, and a plurality of microneedles integrally formed on the outer surface of the outer layer; The auxiliary mechanism includes multiple arc grooves formed around the outer layer to guide rainwater and regulate water flow paths, multiple drug dispensing holes arrayed on the surface of the drug-loaded layer for temporary storage and release of drugs, and multiple diamond-shaped grooves formed on the bonding surface of the adhesive layer for channeling moisture from the tree trunk and maintaining the bonding stability of the adhesive layer.

[0006] Furthermore, the outer layer provides a support surface for the microneedle array and drug sustained release while protecting the drug-loaded layer from direct external abrasion. The drug-loaded layer stores medicinal ingredients and forms a protective drug film. The adhesive layer adheres tightly to the tree trunk, ensuring long-term stable adhesion between the tape body and the tree trunk. The microneedles have tiny drug channels connected to the drug-loaded layer.

[0007] Furthermore, the arc groove includes a flow-guiding arc segment, a flow-directing arc segment, and an edge arc wing integrally formed on the outer surface of the outer layer.

[0008] Furthermore, the diversion arc segment is used to collect rainwater scattered on the outer surface. Through its own arc structure, it concentrates and gathers the dispersed rainwater. The guide arc segment is used to receive the rainwater collected by the diversion arc segment. With the preset arc direction, it stably guides the rainwater to the edge arc wing. The edge arc wing is used to regulate the discharge direction of the water flow and ensure that the rainwater smoothly leaves the outer surface.

[0009] Furthermore, the drug dispensing orifice includes a plurality of drug collection orifices arrayed at the center of the drug-loaded layer surface, and a plurality of drug release orifices arrayed at the edge of the drug-loaded layer surface.

[0010] Furthermore, the drug collection orifice is used to temporarily store the medicinal components in the central region of the drug-loaded layer. Through its own porous structure, it prevents the drug from spreading randomly inside the drug-loaded layer, while guiding the drug to be stably delivered to the microneedle through its pore walls. The drug release orifice is used to evenly distribute the drug to the edge of the drug-loaded layer, ensuring that the overall drug distribution of the drug-loaded layer is balanced and avoiding drug enrichment in the central region and drug depletion in the edge region.

[0011] Furthermore, the rhomboid groove includes a plurality of radial moisture-guiding grooves formed on the bonding surface of the adhesive layer and interconnected with each other, a central rhomboid grid formed on the adjacent sides of the plurality of radial moisture-guiding grooves, and an edge moisture-draining port connected to the outside of the adhesive layer and used in conjunction with the radial moisture-guiding grooves.

[0012] Furthermore, the central rhomboid grid can expand the contact area with the trunk surface using its rhomboid structure, while the radial moisture-guiding grooves collect moisture generated by the trunk's respiration or the humidity of the environment, preventing moisture from accumulating locally between the adhesive layer and the trunk. The radial moisture-guiding grooves can quickly guide the collected moisture along the center of the adhesive layer to the edge exhaust port through interconnected channels, forming a continuous moisture transmission path. The edge exhaust port is used to discharge the moisture transported by the radial moisture-guiding grooves to the outside, thereby preventing the bonding surface of the adhesive layer from becoming damp.

[0013] The technical solution provided by this utility model has the following advantages compared with the known prior art: This invention, by setting up an auxiliary mechanism, can not only guide rainwater to smoothly detach from the outer layer when encountering rainy weather outdoors, preventing rainwater from splashing to the edge of the adhesive layer and causing the adhesive layer to age, but also quickly guide moisture and discharge it to the outside of the adhesive layer when the tree trunk breathes or the environment is humid, preventing moisture from contacting the adhesive layer for a long time. This achieves the effect of ensuring the long-term stable retention of medicinal ingredients in the drug-carrying layer while significantly reducing the detachment of the tape body in humid mountain forest environments. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an enlarged structural diagram of the tape body in this utility model; Figure 3 This utility model Figure 2 A magnified view of the structure at point A in the middle; Figure 4 This is a schematic diagram of the overall structure of the auxiliary mechanism in this utility model; Figure 5 This is a schematic diagram of the overall structure of the drug-carrying layer of this utility model; Figure 6 This is a schematic diagram of the overall structure of the adhesive layer in this utility model.

[0016] The labels in the diagram represent: 100, tape body; 110, outer layer; 120, drug-loaded layer; 130, adhesive layer; 140, microneedles; 200, auxiliary mechanism; 210, arc groove; 211, drainage arc segment; 212, guide arc segment; 213, edge arc wing; 220, drug distribution hole; 221, drug collection hole; 222, drug release hole; 230, diamond groove; 231, radial moisture-guiding groove; 232, central diamond grid; 233, edge moisture-removing port. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The present invention will be further described below with reference to the embodiments.

[0019] Example: A drug-loaded tape for preventing pine nematodes, see attached document. Figure 1 -Appendix Figure 6 ,include, The tape body 100 includes an integrally formed outer layer 110, a drug-loaded layer 120, an adhesive layer 130, and a plurality of microneedles 140 integrally formed on the outer surface of the outer layer 110. It should be noted that the outer layer 110 not only provides support for the microneedle 140 array, but also directly isolates external rainwater from contact with the drug-loaded layer 120, preventing the medicinal components in the drug-loaded layer 120 from being decomposed by rainwater. The drug-loaded layer 120 is the storage area for the medicinal components. The adhesive layer 130 can be tightly bonded to the tree trunk through a highly adaptable pressure-sensitive adhesive, preventing the tape body 100 from falling off when the tree trunk grows or shakes. The microneedles 140 are used to slowly release into the environment around the tree trunk. On the one hand, they repel the vector of pine wood nematode, the pine sawyer beetle, through the drug odor. On the other hand, when the pine sawyer beetle comes into contact with the drug on the surface of the microneedles 140 while biting, it can achieve contact killing and cut off the transmission chain. The tape body 100 is made of polylactic acid and polyglutamic acid. The drug-loaded layer 120 stores thymine drugs such as Sophora flavescens essential oil, Sophora flavescens hydrosol, garlic essential oil, and graphene oxide.

[0020] The auxiliary mechanism 200 includes multiple arc grooves 210 formed around the outer layer 110 to guide rainwater and regulate the water flow path, multiple drug dispensing holes 220 arranged in an array on the surface of the drug-carrying layer 120 for temporary storage and release of drugs, and multiple diamond-shaped grooves 230 formed on the bonding surface of the adhesive layer 130 for channeling tree trunk moisture and maintaining the bonding stability of the adhesive layer 130.

[0021] Specifically, the outer layer 110 provides a support surface for the microneedle array 140 and drug sustained release, while protecting the drug-loaded layer 120 from direct external abrasion. The drug-loaded layer 120 stores medicinal ingredients and forms a protective drug film. The adhesive layer 130 is used to tightly adhere to the tree trunk, ensuring that the tape body 100 is stably adhered to the tree trunk for a long time. The microneedles 140 have tiny drug channels connected to the drug-loaded layer 120 inside.

[0022] Furthermore, the arc groove 210 includes a flow-guiding arc segment 211, a flow-directing arc segment 212, and an edge arc wing 213 integrally formed on the outer surface of the outer layer 110.

[0023] It should be noted that the drainage arc segment 211 can use its curved surface to collect rainwater scattered on the surface of the outer layer 110, and concentrate the dispersed rainwater to the guide arc segment 212, so as to prevent rainwater from lingering in the gaps of the microneedles 140 and eroding the drug. The guide arc segment 212 is used to receive the rainwater of the drainage arc segment 211 and guide the rainwater stably to the edge arc wing 213 along the preset arc direction, so as to prevent the rainwater from directly impacting the junction of the outer layer 110 and the drug-carrying layer 120. The edge arc wing 213 is convex arc-shaped, which is used to regulate the direction of water flow and make the rainwater smoothly leave the outer layer 110 along the arc surface, so as to prevent the rainwater from splashing to the edge of the adhesive layer 130 and causing the adhesive layer to age.

[0024] Preferably, the diversion arc segment 211 is used to collect rainwater scattered on the surface of the outer layer 110. It concentrates and gathers the dispersed rainwater through its own arc structure. The guide arc segment 212 is used to receive the rainwater collected by the diversion arc segment 211. With the preset arc direction, it stably guides the rainwater to the edge arc wing 213. The edge arc wing 213 is used to regulate the discharge direction of the water flow and ensure that the rainwater smoothly leaves the surface of the outer layer 110.

[0025] It should be noted that the drug dispensing orifice 220 includes multiple drug collection orifices 221 arrayed at the center of the drug-carrying layer 120 surface, and multiple drug release orifices 222 arrayed at the edge of the drug-carrying layer 120 surface.

[0026] It should also be noted that the collection hole 221 has a cylindrical hole structure, which is used to concentrate and temporarily store the medicinal components in the center of the drug-loaded layer 120. It can restrict the drug from spreading randomly in all directions through the hole wall. At the same time, its hole wall is designed with an inclined shape, so that the collection hole 221 can guide the drug to flow steadily along the hole wall to the drug channel of the microneedle 140, ensuring a continuous supply of drug to the microneedle 140. After receiving part of the drug delivered by the collection hole 221, the release hole 222 can evenly distribute the drug to the edge of the drug-loaded layer 120, ensuring that the drug forms a complete drug film around the trunk.

[0027] Furthermore, the drug collection orifice 221 is used to centrally store the medicinal components in the central area of ​​the drug-loaded layer 120, and through its own porous structure, it prevents the drug from spreading randomly inside the drug-loaded layer 120. At the same time, it guides the drug to be stably delivered to the microneedle 140 with the help of its pore walls. The drug release orifice 222 is used to evenly distribute the drug to the edge of the drug-loaded layer 120, ensuring that the overall drug distribution of the drug-loaded layer 120 is balanced, and avoiding drug enrichment in the central area and drug depletion in the edge area.

[0028] Specifically, the rhomboid groove 230 includes a plurality of radial moisture-guiding grooves 231 formed on the bonding surface of the adhesive layer 130 and interconnected with each other, a central rhomboid grid 232 formed on the adjacent sides of the plurality of radial moisture-guiding grooves 231, and an edge moisture-draining port 233 connected to the outside of the adhesive layer 130 and used in conjunction with the radial moisture-guiding grooves 231.

[0029] It should be explained that the central rhombus 232 is formed by adjacent radial moisture-guiding channels 231. The radial moisture-guiding channels 231 are distributed radially, with one end connected to the central rhombus 232. With its own inclined channel, it can quickly guide the water vapor collected by the central rhombus 232 radially to the edge exhaust port 233. The edge exhaust port 233 is used to directly discharge the water vapor transported by the radial moisture-guiding channels 231 to the outside, so as to avoid water vapor contacting the adhesive layer 130 for a long time, which would cause the adhesive layer to weaken.

[0030] Preferably, the central rhomboid grid 232 can expand the contact area with the tree trunk surface by utilizing the rhomboid structure, while collecting water vapor generated by the tree trunk's respiration or the humidity of the environment through the radial moisture-guiding grooves 231, avoiding local accumulation of water vapor between the adhesive layer 130 and the tree trunk. The radial moisture-guiding grooves 231 can quickly guide the collected water vapor along the center of the adhesive layer 130 to the edge moisture-removing port 233 through interconnected channels, forming a continuous water vapor transmission path. The edge moisture-removing port 233 is used to discharge the water vapor transported by the radial moisture-guiding grooves 231 to the outside, thereby preventing the bonding surface of the adhesive layer 130 from becoming damp.

[0031] When using, Clean the surface of the uninfected pine tree trunks that need protection, removing dead branches, fallen leaves, soil and other debris to ensure that the trunk surface is flat and dry, providing a foundation for the bonding layer 130 to be applied. Then, take out the tape body 100, peel off the protective film on the surface of the adhesive layer 130, align the adhesive layer 130 of the tape body 100 with the tree trunk 1-1.5m above the ground and start wrapping. During the wrapping process, keep the tape flat and avoid wrinkles and overlaps, so that the outer layer 110 of the tape body 100 faces outward and the adhesive layer 130 is tightly attached to the tree trunk. At the same time, ensure that the arc grooves 210 around the outer layer 110 are fully exposed, the dispensing holes 220 on the surface of the drug-loaded layer 120 are in normal communication with the microneedles 140, and the diamond grooves 230 on the surface of the adhesive layer 130 can fully contact the surface of the tree trunk. After wrapping, lightly press the tape body 100 to ensure that the adhesive layer 130 is stably attached to the tree trunk. In subsequent use: the medicinal components such as Sophora flavescens essential oil and Sophora flavescens hydrosol in the drug-carrying layer 120 are temporarily stored through the drug collection hole 221 and guided to the fine drug channel of the microneedle 140, and then slowly released by the microneedle 140. At the same time, the drug is distributed to the edge of the drug-carrying layer 120 through the drug release hole 222 to form a complete drug film, so as to achieve the effects of repelling and killing pine sawyer beetle and preventing pine wood nematode. When the tape body 100 encounters rainwater: the rainwater is collected by the drainage arc section 211 and guided by the guide arc section 212 to the edge arc wing 213 for smooth discharge, avoiding washing away the medicine; When the tree trunk breathes or the environment is humid and produces water vapor: the water vapor is guided by the central diamond grid 232 to the radial moisture channel 231, and then guided by the radial moisture channel 231 to the edge moisture outlet 233 and discharged, ensuring the adhesion stability of the adhesive layer 130. Regularly check the condition of the tape. If it is damaged or comes off, replace it immediately to ensure long-term protection.

[0032] In summary, by setting up the auxiliary mechanism 200, not only can rainwater be guided to smoothly detach from the outer layer 110 when encountering rainy weather outdoors, preventing rainwater from splashing onto the edge of the adhesive layer 130 and causing the adhesive layer to age, but it can also quickly guide and discharge moisture to the outside of the adhesive layer 130 when the tree trunk breathes or the environment is humid, preventing moisture from contacting the adhesive layer 130 for a long time. This achieves the effect of ensuring the long-term stable retention of the medicinal ingredients in the drug-carrying layer 120 while significantly reducing the detachment of the tape body 100 in the humid mountain forest environment.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A drug-loaded tape for preventing pine nematodes, comprising, characterized in that, The tape body (100) includes an integrally formed outer layer (110), a drug-loaded layer (120), an adhesive layer (130), and a plurality of microneedles (140) integrally formed on the outer surface of the outer layer (110). The auxiliary mechanism (200) includes multiple arc grooves (210) opened around the outer layer (110) to guide rainwater and regulate the water flow path, multiple drug dispensing holes (220) distributed in an array on the surface of the drug-carrying layer (120) for temporary storage and release of drugs, and multiple diamond-shaped grooves (230) opened on the bonding surface of the adhesive layer (130) for channeling tree trunk moisture and maintaining the bonding stability of the adhesive layer (130).

2. The drug-loaded anti-pine nematode tape according to claim 1, characterized in that, The outer layer (110) provides a support surface for the microneedle (140) array and drug sustained release, while protecting the drug-loaded layer (120) from direct external abrasion. The drug-loaded layer (120) stores medicinal ingredients and forms a protective drug film. The adhesive layer (130) is used to tightly adhere to the tree trunk, ensuring that the tape body (100) is stably adhered to the tree trunk for a long time. The microneedles (140) have tiny drug channels inside that are connected to the drug-loaded layer (120).

3. The drug-loaded anti-pine nematode tape according to claim 2, characterized in that, The arc groove (210) includes a flow-guiding arc segment (211), a flow-directing arc segment (212), and an edge arc wing (213) integrally formed on the outer surface of the outer layer (110).

4. The drug-loaded anti-pine nematode tape according to claim 3, characterized in that, The diversion arc segment (211) is used to collect rainwater scattered on the surface of the outer layer (110). It concentrates and gathers the dispersed rainwater through its own arc structure. The guide arc segment (212) is used to receive the rainwater collected by the diversion arc segment (211). With the preset arc direction, it stably guides the rainwater to the edge arc wing (213). The edge arc wing (213) is used to regulate the discharge direction of the water flow and ensure that the rainwater smoothly leaves the surface of the outer layer (110).

5. The drug-loaded anti-pine nematode tape according to claim 4, characterized in that, The drug dispensing orifice (220) includes a plurality of drug collection orifices (221) arranged in an array at the center of the surface of the drug-carrying layer (120), and a plurality of drug release orifices (222) arranged in an array at the edge of the surface of the drug-carrying layer (120).

6. The drug-loaded anti-pine nematode tape according to claim 5, characterized in that, The drug collection hole (221) is used to temporarily store the medicinal components in the central area of ​​the drug-carrying layer (120). Through its own porous structure, it prevents the drug from spreading randomly inside the drug-carrying layer (120) and guides the drug to be stably delivered to the microneedle (140) by means of its pore wall. The drug release hole (222) is used to evenly distribute the drug to the edge of the drug-carrying layer (120) to ensure that the overall drug distribution of the drug-carrying layer (120) is balanced and to avoid drug enrichment in the central area and drug depletion in the edge area.

7. The drug-loaded anti-pine nematode tape according to claim 6, characterized in that, The rhomboid groove (230) includes a plurality of radial moisture-guiding grooves (231) formed on the bonding surface of the adhesive layer (130) and interconnected with each other, a central rhomboid grid (232) formed on the adjacent sides of the plurality of radial moisture-guiding grooves (231), and an edge moisture-removing port (233) connected to the outside of the adhesive layer (130) and used in conjunction with the radial moisture-guiding grooves (231).

8. The drug-loaded anti-pine nematode tape according to claim 7, characterized in that, The central rhomboid grid (232) can expand the contact area with the trunk surface by utilizing the rhomboid structure, while collecting water vapor generated by the trunk's respiration or the humidity of the environment by means of the radial moisture-guiding groove (231), avoiding the local accumulation of water vapor between the adhesive layer (130) and the trunk. The radial moisture-guiding groove (231) can quickly guide the collected water vapor along the center of the adhesive layer (130) to the edge moisture-removing port (233) by means of the interconnected channels, forming a continuous water vapor transmission path. The edge moisture-removing port (233) is used to discharge the water vapor transported by the radial moisture-guiding groove (231) to the outside, thereby avoiding the adhesion surface of the adhesive layer (130) from being damp.

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