Trichogramma wasp adult releasing device and precise releasing method in forest

Abstract

The present application relates to the technical field of biological control of forestry pests, and discloses a trichogramma spp. adult release device and a precise release method in a forest, which comprises a box top cover, the inner side of the lower end of the box top cover is provided with a bee card limiting storage assembly, the inner wall of the box top cover is embedded with a transparent skylight on one side, the transparent skylight is used for observing the emergence progress of the trichogramma spp. in the bee card limiting storage assembly, the upper end of the box top cover is provided with an adult release suspension assembly on one side, and the side of the box top cover away from the adult release suspension assembly and the transparent skylight is provided with an adjustable ventilation mechanism. In the present application, after the box top cover is buckled with the bee storage box, a joint is covered with an elastic protective sleeve, forming a double-layer sealed water-proof structure, which can prevent rainwater from seeping into the cavity for a long time under the rainfall environment in the forest, and prevent the bee card from being moldy and inactivated; the adult release opening is completely closed by a magnetic sealing strip during the closed storage and transportation stage, ants cannot enter the box to eat bee eggs and bee pupae, thereby reducing the loss of bee sources from the source.

Description

Technical Field

[0001] This invention relates to the field of biological control technology for forest pests, and in particular to a device for releasing adult Trichogramma wasps and a method for precise release in forests. Background Technology

[0002] The yellow twig borer is extremely damaging to the leaves of agarwood trees. During its voracious feeding phase, it can devour all the leaves from a tree within a few days, severely impacting tree development and even causing death. It is a significant obstacle to the development of the agarwood industry. Spraying pesticides to kill the larvae has long been the common method for controlling the yellow twig borer. However, with increasing national emphasis on environmental protection and rising market demand for healthy products, green, environmentally friendly, and pollution-free biological control technologies are gaining attention and popularity in agarwood tree cultivation. Research has found that the Trichogramma wasp is an excellent parasitic wasp for yellow twig borer eggs, and its application in forests has made some progress, being demonstrated and promoted in production. The Trichogramma wasp is a versatile and excellent natural enemy insect, and its application in controlling certain agricultural and forestry pests is relatively mature. However, many developed release devices have some problems when used in agarwood forests, such as ants eating the eggs on the wasp cards, rainwater reducing the emergence rate of Trichogramma wasps, and inconvenience in use.

[0003] The release device for Trichogramma fasciculata in the forest is a key instrument determining the parasitic wasp's emergence rate, survival time, and dispersal effect in the forest. Existing traditional Trichogramma fasciculata release devices have several technical defects: traditional one-piece paper beehives lack a sealed protective structure, allowing rainwater to easily seep in and soak the beehive card, significantly reducing the emergence rate; ants can easily enter the box and eat bee eggs and unemerged pupae, causing wasp loss; traditional beehives have pre-reserved exit holes, making it easy for unemerged Trichogramma fasciculata to escape prematurely during storage and transportation, resulting in uncontrollable release volume; emergence progress cannot be visually observed: conventional beehives are fully enclosed paper structures, making it impossible for operators to visually judge the emergence time of the Trichogramma fasciculata inside the box, leading to inaccurate release timing. Hanging the beehive too early can cause adult wasps to suffocate inside, while hanging it too late... Missing the window of opportunity for insect egg parasitism significantly reduces the effectiveness of pest control. The large diurnal temperature range and drastic humidity fluctuations in agarwood forests, coupled with the lack of ventilation and regulation mechanisms in existing devices, make the boxes prone to mold growth and bee cards spoilage under high temperature and humidity. In low-temperature, dry environments, bee pupae dehydrate and die, failing to provide a stable microenvironment for Trichogramma wasps to emerge. Operators cannot monitor the internal temperature and humidity of the bee boxes in real time, relying solely on subjective judgment of the external environment, making it difficult to adjust ventilation conditions and resulting in poor emergence stability. Simply pasting bee cards allows them to easily shift and stack during transport and hanging, causing bee pupae to crush and damage each other, reducing the number of adult bees produced. Existing kraft paper bee boxes are easily damaged and deformed when damp, making them impossible to clean and reuse, resulting in high material consumption for large-scale forest control. Summary of the Invention

[0004] The technical problem to be solved by this invention is to provide a release device for adult Trichogramma wasps and a precise release method in the forest to solve the problems of poor protection, inability to observe molting, uncontrollable environment, lack of temperature and humidity monitoring, unstable bee card fixation, cumbersome operation, and non-reusability of existing traditional Trichogramma wasp release devices.

[0005] To address the aforementioned problems, the present invention is implemented through the following technical solution.

[0006] A device for releasing adult Trichogramma wasps and a method for precise release in the forest include: a box top cover, a bee card limiting and storage component provided on the inner side of the lower end of the box top cover, a transparent skylight embedded on one side of the inner wall of the box top cover for observing the emergence progress of Trichogramma wasps inside the bee card limiting and storage component, an adult wasp release suspension component provided on one side of the upper end of the box top cover, and an adjustable ventilation mechanism provided on the side of the box top cover away from the adult wasp release suspension component and the transparent skylight, and a temperature and humidity monitoring component provided on the side of the box top cover away from the adjustable ventilation mechanism.

[0007] In one embodiment, the bee card limiting and storage assembly includes a bee storage box, a circumferential limiting base, a bee card hook, a parasitic bee breeding bee card, a hanging hole, and a bee card positioning support. The circumferential limiting base is glued and fixed to the bottom of the bee storage box.

[0008] In one embodiment, the bottom inner side of the bee storage box is provided with a plurality of bee card hooks at equal intervals in a ring shape, and a hanging hole is provided on one side of the parasitic bee breeding card. The parasitic bee breeding card is suspended and placed inside the bee storage box by cooperating with the bee card hooks through the hanging hole. The bottom inner side of the bee storage box is provided with a plurality of bee card positioning supports along the four corners of the parasitic bee breeding card.

[0009] In one embodiment, the top cover and the bee storage box form a cylindrical cavity structure with a top and bottom box, and the outer diameter of the bee storage box is smaller than the inner diameter of the top cover. The outer diameter of the circumferential limiting base is the same as the outer diameter of the bottom of the bee storage box, and the connection between the top cover and the outer side of the bee storage box is covered with an elastic protective sleeve.

[0010] In one embodiment, the bee release suspension assembly includes a bent suspension strip, a suspension hook, a bent indentation line, a magnetic seal strip one, a magnetic seal strip two, and a bee release opening, with the bent suspension strip integrally formed on the upper surface of the box top cover.

[0011] In one embodiment, a bending indentation line is pre-formed on one side of the bending suspension strip, and a suspension hook is integrally formed on the side of the bending suspension strip away from the bending indentation line. A magnetic sealing strip is provided along the lower edge of the bending suspension strip, and a magnetic sealing strip is provided at the upper end of the box top cover at the position corresponding to the magnetic sealing strip. A honeycomb release opening is opened at the location of the magnetic sealing strip.

[0012] In one embodiment, the adjustable ventilation mechanism includes ventilation holes, a rotary sealing air regulating plate, an air regulating plate guide rail, a ventilation adjustment buckle, and an angle limiting arc groove. A plurality of ventilation holes are evenly opened in a fan shape on one side of the box top cover, and the fan angle is between 50-70°. A rotary sealing air regulating plate is attached to the upper inner side of the box top cover, and the rotary sealing air regulating plate is arc-shaped and attached to the ventilation holes. The air regulating plate guide rail is arranged along the rotation path of the rotary sealing air regulating plate, and the air regulating plate guide rail is integrally formed with the box top cover.

[0013] In one embodiment, a ventilation adjustment buckle is provided at the upper end of the rotary sealing air regulating plate, and an angle limiting arc groove is provided on the top cover along the rotation path of the ventilation adjustment buckle. The rotary sealing air regulating plate slides and rotates along the air regulating plate guide rail. The ventilation adjustment buckle passes through the angle limiting arc groove and is fixedly connected to the rotary sealing air regulating plate. By controlling the ventilation adjustment buckle to slide along the angle limiting arc groove, the area of ​​the ventilation hole blocked by the rotary sealing air regulating plate can be changed, thereby realizing stepless adjustment of the ventilation volume.

[0014] In one embodiment, the temperature and humidity monitoring component includes a mounting box, a temperature sensor, a humidity sensor, and a display panel. The mounting box is fixed to the inner wall of the box top cover, and two mounting boxes are provided. The temperature sensor and the humidity sensor are respectively installed inside the two mounting boxes. The display panel is embedded on the outer surface of the box top cover. The temperature sensor and the display panel are electrically connected, and the humidity sensor and the display panel are electrically connected.

[0015] A method for precise release of adult Trichogramma maxima in forests includes the following steps: S1. One to two days before the emergence of the parasitic wasp, the breeding card of the parasitic wasp is hung on the card hook inside the bee storage box through the hanging hole. The four corners of the breeding card are fixed by the card positioning support to prevent the card from shifting and stacking. Then, the top cover of the box is connected to the bee storage box to form a cylindrical cavity structure. The joint is covered with an elastic protective sleeve to achieve overall sealing of the device, prevent the unemerged wasps from escaping in advance, and isolate the device from rainwater and ant intrusion in the forest. S2. After the device is assembled, it is placed in a static storage. On a daily basis, the emergence status of the parasitic bee breeding cards inside the bee storage box can be observed in real time through the transparent skylight embedded on the inside of the box top cover. The emergence point of the adult bees of the Trichogramma can be accurately controlled to determine the best time to release them in the forest. S3. Transfer the device to be released to the forest operation area. The temperature and humidity sensors inside the box are installed on the inside of the box to collect the internal temperature and humidity data of the device in real time, and read the parameters through the display panel. According to the real-time ambient temperature and humidity in the forest, slide the ventilation adjustment buckle along the angle limit arc groove, drive the rotating sealing air regulating plate to rotate along the air regulating plate guide rail, adjust the effective ventilation area of ​​the ventilation hole, and steplessly fine adjust the internal ventilation environment of the device to adapt to the complex climate in the forest and ensure the stability of the survival environment for adult bees to emerge. S4. After confirming that the bee card has entered the concentrated emergence stage, bend and open the bent hanging strip at the top of the box cover along the preset bending and indentation line. Separate magnetic seal one and magnetic seal two so that the hanging strip is perpendicular to the end face of the box cover. Use the integrated hanging hook to suspend and fix the whole device to the upper and middle ventilated branches of the trees. Distribute the points evenly according to the distribution density of pests in the forest to ensure comprehensive control coverage. S5. After the device is suspended in place, the adult bee release opening at the top of the box is fully opened, and the adult Trichogramma wasps that have completed their emergence in the bee storage box naturally fly out from the release opening and spread to the parasitic insect eggs in the forest. S6. After the parasitic wasp breeding card has fully emerged and all adult wasps have been released, remove the hanging device from the branches in the forest, separate the top cover of the box from the bee storage box, clean the remaining bee shells, impurities and dirt inside, wipe and dry it, and store it neatly. It can be reused for subsequent release operations of Trichogramma bees in the forest.

[0016] This invention provides a release device for adult Trichogramma wasps and a method for precise release in forests. Compared with existing technologies, it has the following advantages: After the top cover of the box is fastened to the bee storage box, the seam is covered with an elastic protective sleeve, forming a double-layer sealed and waterproof structure. In rainy forest environments, it can prevent rainwater from seeping into the cavity for a long time, avoiding the bee cards from becoming moldy and inactive. During the sealed storage and transportation stage, the adult bee release opening is completely sealed by a magnetic seal, preventing ants from entering the box to eat bee eggs and pupae, thus reducing bee source loss from the source. Before release, the magnetic seal seals the adult bee release opening, and the device has no exposed bee passage, preventing unemerged Trichogramma bees from escaping prematurely during storage, transportation, and resting stages. The number of released bees is controllable, and the control effect in the forest is stable.

[0017] The box has a transparent skylight embedded in the side wall of the top cover, which allows for direct observation of the emergence status of the bee cards inside without disassembling the box. Operators can accurately lock the peak emergence of Trichogramma hymenosa, avoiding hanging the boxes too early and causing adult bees to suffocate, or hanging them too late and missing the window period for insect egg parasitism, thus significantly improving the efficiency of parasitic control.

[0018] The system features a fan-shaped ventilation hole arrangement combined with a rotating sealing air regulating plate. The effective ventilation area can be steplessly adjusted by sliding the ventilation adjustment buckle. In high temperature and humidity conditions, the ventilation volume is increased to reduce humidity inside the box and prevent mold growth. In low temperature and dry conditions, the ventilation volume is reduced to minimize moisture loss from bee pupae, thus maintaining a suitable microenvironment for Trichogramma bee emergence and significantly improving the survival rate of adult bees. The box is equipped with independent temperature and humidity sensors, and the external visual display panel synchronously outputs the internal temperature and humidity values. Operators can adjust the ventilation opening based on the measured data, eliminating the need for extensive operation that relies on subjective judgment of the external environment and achieving precise control of the Trichogramma bee emergence environment.

[0019] The bee storage box is equipped with bee card hooks and four corner bee card positioning pillars, which double limit and fix the parasitic bee breeding bee cards. During transportation and handling, the bee cards will not shift, stack, or be squeezed, avoiding physical damage to bee pupae and ensuring the production of adult bees.

[0020] The bee release suspension assembly integrates suspension, sealing, and release functions. After bending the suspension strip, it automatically separates magnetically, and the release opening opens simultaneously without disassembling the box. The integrated suspension hook can be directly hung on tree branches, making the placement and suspension operation simple and greatly saving manpower and operation time in the forest.

[0021] The entire device, including the top cover, bee storage box, and elastic protective cover, can be disassembled. After release, the internal residue can be cleaned, washed, dried, and reused. There is no need to replace the paper bee box every time, which greatly reduces the cost of consumables for biological control in large areas of forest land, making it environmentally friendly and economical. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the release device for adult Trichogramma wasps.

[0023] Figure 2 A schematic diagram of the layered explosion structure of the release device for adult Trichogramma hymenopterus.

[0024] Figure 3 A schematic diagram of the structure of the bee card limiting and storage component of the release device for adult Trichogramma bees.

[0025] Figure 4 A schematic diagram of the inner side of the top cover of the release device box for adult Trichogramma wasps, viewed from below.

[0026] Figure 5 A side view of the three-dimensional structure of the bending suspension bar of the release device for adult Trichogramma wasps.

[0027] Figure 6 A schematic diagram of the three-dimensional structure of the bending suspension bar of the release device for adult Trichogramma wasps.

[0028] The attached figures are labeled as follows: 1. Top cover of the box; 2. Bee card limiting and storage component; 201. Bee storage box; 202. Circumferential limiting base; 203. Bee card hook; 204. Parasitic wasp breeding bee card; 205. Hanging hole; 206. Bee card positioning support; 3. Elastic protective sleeve; 4. Transparent skylight; 5. Adult bee release and suspension component; 501. Bending suspension strip; 502. Suspension hook; 503. Bending indentation line; 504. Magnetic seal strip one; 505. Magnetic seal strip two; 506. Adult bee release opening; 6. Adjustable ventilation mechanism; 601. Ventilation hole; 602. Rotary sealing air regulating plate; 603. Air regulating plate guide rail; 604. Ventilation adjustment buckle; 605. Angle limiting arc groove; 7. Temperature and humidity monitoring component; 701. Placement box; 702. Temperature sensor; 703. Humidity sensor; 704. Display panel. Detailed Implementation

[0029] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0030] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0031] Reference Figures 1-6 A device for releasing adult Trichogramma wasps and a method for precise release in the forest, comprising: a box top cover 1, a bee card limiting and storage component 2 provided on the inner side of the lower end of the box top cover 1, a transparent skylight 4 embedded on one side of the inner wall of the box top cover 1, the transparent skylight 4 being used to observe the emergence progress of Trichogramma wasps inside the bee card limiting and storage component 2, an adult bee release suspension component 5 provided on one side of the upper end of the box top cover 1, and an adjustable ventilation mechanism 6 provided on the side of the box top cover 1 away from the adult bee release suspension component 5 and the transparent skylight 4, and a temperature and humidity monitoring component 7 provided on the side of the box top cover 1 away from the adjustable ventilation mechanism 6.

[0032] The bee card limiting and storage component 2 includes a bee storage box 201, a circumferential limiting base 202, a bee card hook 203, a parasitic bee breeding bee card 204, a hanging hole 205, and a bee card positioning support 206. The circumferential limiting base 202 is glued and fixed to the bottom of the bee storage box 201.

[0033] The inner bottom of the bee storage box 201 is provided with multiple bee card hooks 203 arranged in a ring at equal intervals. The parasitic bee breeding card 204 has a hanging hole 205 on one side. The parasitic bee breeding card 204 is suspended and placed inside the bee storage box 201 by cooperating with the bee card hooks 203 through the hanging hole 205. Multiple bee card positioning supports 206 are provided at the four corners of the parasitic bee breeding card 204 on the inner bottom of the bee storage box 201.

[0034] The top cover 1 and the bee storage box 201 form a cylindrical cavity structure with a top and bottom box. The outer diameter of the bee storage box 201 is smaller than the inner diameter of the top cover 1. The outer diameter of the circumferential limiting base 202 is the same as the outer diameter of the bottom of the bee storage box 201. The connection between the top cover 1 and the outer side of the bee storage box 201 is covered with an elastic protective sleeve 3.

[0035] The bee release suspension assembly 5 includes a bent suspension strip 501, a suspension hook 502, a bent indentation line 503, a magnetic seal strip 1 504, a magnetic seal strip 2 505, and a bee release opening 506. The bent suspension strip 501 is integrally formed on the upper surface of the box top cover 1.

[0036] A bending indentation line 503 is pre-made on one side of the bending hanging strip 501, and a hanging hook 502 is integrally formed on the side of the bending hanging strip 501 away from the bending indentation line 503. A magnetic sealing strip 1 504 is provided at the lower edge of the bending hanging strip 501. A magnetic sealing strip 2 505 is provided at the upper end of the box top cover 1 at the position corresponding to the magnetic sealing strip 1 504. A honeycomb release opening 506 is opened at the location of the magnetic sealing strip 2 505 on the box top cover 1.

[0037] The adjustable ventilation mechanism 6 includes ventilation holes 601, a rotary sealing air regulating plate 602, an air regulating plate guide rail 603, a ventilation adjustment buckle 604, and an angle limiting arc groove 605. Several ventilation holes 601 are evenly opened in a fan shape on one side of the box top cover 1, and the fan angle is between 50-70°. The rotary sealing air regulating plate 602 is attached to the upper inner side of the box top cover 1. The rotary sealing air regulating plate 602 is arc-shaped and attached to the ventilation holes 601. The air regulating plate guide rail 603 is set along the rotation path of the rotary sealing air regulating plate 602, and the air regulating plate guide rail 603 is integrally formed with the box top cover 1.

[0038] A ventilation adjustment buckle 604 is provided at the upper end of the rotary sealing air regulating plate 602, and an angle limiting arc groove 605 is provided at the top cover 1 along the rotation path of the ventilation adjustment buckle 604. The rotary sealing air regulating plate 602 slides and rotates along the air regulating plate guide rail 603. The ventilation adjustment buckle 604 passes through the angle limiting arc groove 605 and is fixedly connected to the rotary sealing air regulating plate 602. By controlling the ventilation adjustment buckle 604 to slide along the angle limiting arc groove 605, the area of ​​the ventilation hole 601 blocked by the rotary sealing air regulating plate 602 can be changed, so as to realize stepless adjustment of ventilation volume.

[0039] The temperature and humidity monitoring component 7 includes a mounting box 701, a temperature sensor 702, a humidity sensor 703, and a display panel 704. The mounting box 701 is fixed to the inner side wall of the box top cover 1, and there are two mounting boxes 701. The temperature sensor 702 and the humidity sensor 703 are installed inside the two mounting boxes 701 respectively. The display panel 704 is embedded on the outer surface of the box top cover 1. The temperature sensor 702 and the display panel 704 are electrically connected, and the humidity sensor 703 and the display panel 704 are electrically connected.

[0040] A method for precise release of adult Trichogramma maxima in forests includes the following steps: S1. One to two days before the emergence of the parasitic wasp, the breeding card 204 of the parasitic wasp that has been bred is hung on the card hook 203 inside the bee storage box 201 through the hanging hole 205. The four corners of the parasitic wasp breeding card 204 are limited and fixed by the card positioning support 206 to prevent the card from shifting and stacking. Then, the top cover 1 of the box is connected and fastened to the bee storage box 201 to form a cylindrical cavity structure of a box. The elastic protective sleeve 3 is covered at the joint to achieve overall sealing of the device, prevent the unemerged wasps from escaping in advance, and isolate the forest from rainwater and ant intrusion. S2. After the device is assembled, it is placed in a static storage. On a daily basis, the emergence status of the parasitic wasp breeding card 204 inside the bee storage box 201 can be observed in real time through the transparent skylight 4 embedded on the inside of the box top cover 1. The emergence node of the adult bees of the Trichogramma wasp is accurately controlled to determine the best time to release them in the forest. S3. Transfer the device to be released to the forest operation area. The temperature sensor 702 and humidity sensor 703 inside the box 701 installed on the inside of the box top cover 1 collect the internal temperature and humidity data of the device in real time, and read the parameters through the display panel 704. According to the real-time ambient temperature and humidity in the forest, slide the ventilation adjustment buckle 604 along the angle limiting arc groove 605, which drives the rotating sealing air regulating plate 602 to rotate along the air regulating plate guide rail 603, adjust the effective ventilation area of ​​the ventilation hole 601, and steplessly fine-tune the internal ventilation environment of the device to adapt to the complex climate in the forest and ensure the stability of the survival environment for adult bees to emerge. S4. After confirming that the bee card has entered the concentrated emergence stage, bend along the preset bending indentation line 503 to open the bending hanging strip 501 at the top of the box cover 1. Separate the magnetic sealing strip 1 504 and the magnetic sealing strip 2 505 so that the hanging strip is perpendicular to the end face of the box cover 1. Use the integrated hanging hook 502 to suspend and fix the whole device to the upper and middle ventilated branches of the trees. Distribute the points evenly according to the distribution density of pests in the forest to ensure comprehensive control coverage. S5. After the device is suspended in place, the adult bee release opening 506 at the top of the box cover 1 is fully opened, and the adult Trichogramma wasps that have completed their emergence in the bee storage box 201 naturally fly out from the release opening and spread to the parasitic insect eggs in the forest. S6. After the parasitic wasp breeding card 204 has fully emerged and all adult wasps have been released, remove the hanging device from the branches in the forest, separate the top cover 1 from the bee storage box 201, clean the remaining bee shells, impurities and dirt inside, wipe and dry them, and store them neatly. They can be reused for subsequent release operations of Trichogramma bees in the forest. Example

[0041] like Figures 1-6 As shown, the main body is divided into two major modules: the top cover 1 and the honeycomb card limiting and storage component 2. The two modules are fastened together to form a sealed cylindrical honeycomb storage cavity. An elastic protective sleeve 3 is fitted at the joint of the box body to achieve waterproof sealing of the joint.

[0042] The top cover 1 has a transparent PVC skylight 4 embedded in its side wall, allowing unobstructed observation of the bee molting process inside; the top of the top cover 1 is equipped with an adult bee release suspension component 5, and adjustable ventilation mechanisms 6 and temperature and humidity monitoring components 7 are respectively installed on both sides of the top cover 1.

[0043] In the bee card limiting and storage component 2, the bottom of the bee storage box 201 is bonded with a circumferential limiting base 202, the outer diameter of the circumferential limiting base 202 is the same as that of the bee storage box 201, and multiple sets of bee card hooks 203 are evenly distributed in a ring at the bottom of the bee storage box 201. The parasitic bee breeding bee cards 204 are hung and fixed through the hanging holes 205; four bee card positioning pillars 206 are vertically set at the four corners of the bee cards to support the bee cards and prevent them from tipping over and stacking.

[0044] The thickness of the bending indentation line 503 at the base of the bending hanging strip 501 is reduced, making it easier to bend manually; the magnetic seal 504 at the lower end of the bending hanging strip 501 is normally attracted to the magnetic seal 505 on the top cover 1 of the box, sealing the honeycomb release opening 506; after the hanging strip is folded upwards, it is magnetically separated, the opening is completely open, and the end hook 502 is perpendicular to the box surface, so it can be directly hung on the branches of trees.

[0045] The adjustable ventilation mechanism 6 has ventilation holes 601 arranged in a fan shape at an angle of 60°, and a rotating sealing air regulating plate 602 attached to the inner side of the top cover 1 of the box; the ventilation regulating buckle 604 passes through the angle limiting arc groove 605 on the outer wall and is fixed to the air regulating plate. By sliding it to the right along the angle limiting arc groove 605, the ventilation blocking area can be continuously changed, so as to realize stepless adjustment of ventilation volume.

[0046] The temperature and humidity monitoring component 7 has two sets of housing boxes 701, which respectively house a temperature sensor 702 and a humidity sensor 703. The top of the box cover 1 is fitted with an LCD display panel 704, which displays the temperature and humidity values ​​inside the cavity in real time, making it convenient for operators to adjust the ventilation.

[0047] The main body of the entire device is made of waterproof kraft paper, which is resistant to rain immersion, not easily deformed, and can be disassembled, cleaned, and reused.

[0048] During use, after the top cover 1 and the bee storage box 201 are fastened together, the joint between the two is sealed by the elastic protective sleeve 3, completely blocking the passage for rainwater and ants to enter the cavity; the adult bee release opening 506 at the top of the top cover 1 is tightly sealed by magnetic seal 1 504 and magnetic seal 2 505, and there is no exposed passage for bees to escape, completely preventing the premature escape of unembryonic Trichogramma bees inside the bee storage box 201; the bee card hook 203 inside the bee storage box 201, together with the four corner bee card positioning pillars 206, form a double limiting structure, which can firmly fix the parasitic bee breeding card 204 during transportation and bumping, preventing the parasitic bee breeding card 204 from shifting, stacking and squeezing, and completely protecting the bee pupae from physical damage.

[0049] The top of the top cover 1 is inlaid with a transparent skylight 4, which allows for unobstructed observation of the emergence status of the parasitic bee breeding card 204 inside the bee storage box 201 without disassembling the top cover 1 and the bee storage box 201. This allows for intuitive differentiation of the changes in the number of bee pupae and newly emerged adult bees, and precise identification of the concentrated emergence and release node, thus solving the defect of traditional fully enclosed bee boxes that cannot predict the emergence time.

[0050] The bee storage box 201 and the box top cover 1 enclose the interior of the cavity. The temperature sensor 702 and humidity sensor 703 built into the box 701 collect the temperature and humidity data of the cavity microenvironment in real time. The data is synchronously transmitted to the display panel 704 embedded on the outside of the box top cover 1 for intuitive output. The arc-shaped rotating sealing air regulating plate 602 in the adjustable ventilation mechanism 6 rotates along the limited trajectory of the air regulating plate guide rail 603. The ventilation adjustment buckle 604 can be manually moved and slid along the angle limiting arc groove 605 to continuously change the area of ​​the rotating sealing air regulating plate 602 blocking the ventilation hole 601, and steplessly adjust the gas exchange rate inside and outside the box: when the temperature is high and the humidity is high, the opening of the ventilation hole 601 is increased to reduce the humidity inside the box and prevent the parasitic bee breeding card 204 from becoming moldy; when the temperature is low and the air is dry, the opening of the ventilation hole 601 is reduced to lock in the moisture inside the cavity, maintain the suitable temperature and humidity range for the emergence of Trichogramma bees, and greatly improve the survival rate of the emergence.

[0051] During the release operation in the forest, the bent hanging strip 501 is folded upwards along the pre-set bending indentation line 503 at the base of the bent hanging strip 501. The magnetic seal 1 504 and magnetic seal 2 505 are separated by force, and the adult bee release opening 506 on the top cover 1 of the box is opened simultaneously. The bent hanging strip 501 after being folded is perpendicular to the end face of the top cover 1 of the box. The integrated hanging hook 502 at the outer end of the bent hanging strip 501 can be directly hung on the branches of the trees. The hanging and release operations are completed simultaneously. The Trichogramma wasps that have emerged inside the bee storage box 201 rely on their phototaxis and dispersal habits to fly out of the cavity from the adult bee release opening 506 and spread evenly in the forest to complete the parasitism of the insect eggs.

[0052] The main body is made of waterproof kraft paper, which is resistant to rain immersion and not easily damaged or deformed. After release, the top cover 1, bee storage box 201, and elastic protective sleeve 3 can be completely disassembled. The bee shells, insect debris, and dirt attached to the inside of the bee storage box 201 and the top cover 1 can be removed by rinsing with clean water. After ventilation and drying, there is no residual pollution. It can be reassembled and used multiple times, which greatly reduces the cost of biological control consumables.

[0053] Therefore, although the invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the scope of the foregoing disclosure, and it should be understood that in some cases, certain features of the invention may be adopted without departing from the scope and spirit of the invention and without corresponding use of other features. Thus, many modifications can be made to adapt a particular environment or material to the essential scope and spirit of the invention. The invention is not intended to be limited to the specific terminology used in the following claims and / or the specific embodiments disclosed as the best mode for carrying out the invention, but the invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the invention will be defined only by the appended claims.

Claims

1. A device for releasing adult Trichogramma wasps, characterized in that, include: The top cover (1) is provided with a bee card limiting and storage component (2) on the inner side of the lower end of the top cover (1). A transparent skylight (4) is embedded on one side of the inner wall of the top cover (1). The transparent skylight (4) is used to observe the emergence progress of the bee card limiting and storage component (2). An adult bee release and suspension component (5) is provided on one side of the upper end of the top cover (1). An adjustable ventilation mechanism (6) is provided on the side of the top cover (1) away from the adult bee release and suspension component (5) and the transparent skylight (4). A temperature and humidity monitoring component (7) is provided on the side of the top cover (1) away from the adjustable ventilation mechanism (6).

2. The device for releasing adult Trichogramma rubescens according to claim 1, characterized in that, The bee card limiting storage component (2) includes a bee storage box (201), a circumferential limiting base (202), a bee card hook (203), a parasitic bee breeding bee card (204), a hanging hole (205), and a bee card positioning support (206). The bottom of the bee storage box (201) is glued and fixed to the circumferential limiting base (202).

3. The device for releasing adult Trichogramma rubescens according to claim 2, characterized in that, The bee storage box (201) has multiple bee card hooks (203) arranged in a ring at equal intervals on the bottom inner side. The parasitic bee breeding card (204) has a hanging hole (205) on one side. The parasitic bee breeding card (204) is suspended and placed inside the bee storage box (201) by cooperating with the bee card hooks (203) through the hanging hole (205). The bottom inner side of the bee storage box (201) has multiple bee card positioning supports (206) along the four corners of the parasitic bee breeding card (204).

4. The device for releasing adult Trichogramma rubescens according to claim 3, characterized in that, The top cover (1) and the bee storage box (201) form a cylindrical cavity structure with a top and bottom box. The outer diameter of the bee storage box (201) is smaller than the inner diameter of the top cover (1). The outer diameter of the circumferential limiting base (202) is consistent with the outer diameter of the bottom of the bee storage box (201). The connection between the top cover (1) and the outer side of the bee storage box (201) is covered with an elastic protective sleeve (3).

5. The device for releasing adult Trichogramma rubescens according to claim 1, characterized in that, The bee release suspension assembly (5) includes a bent suspension strip (501), a suspension hook (502), a bent indentation line (503), a magnetic seal strip one (504), a magnetic seal strip two (505), and a bee release opening (506). The bent suspension strip (501) is integrally formed on the upper surface of the box top cover (1).

6. The device for releasing adult Trichogramma rubescens according to claim 5, characterized in that, The bending suspension strip (501) has a pre-made bending indentation line (503) on one side, and a suspension hook (502) is integrally formed on the side of the bending suspension strip (501) away from the bending indentation line (503). A magnetic sealing strip (504) is provided at the lower edge of the bending suspension strip (501), and a magnetic sealing strip (505) is provided at the upper end of the box top cover (1) corresponding to the position of the magnetic sealing strip (504). A honeycomb release opening (506) is opened at the position of the magnetic sealing strip (505) on the box top cover (1).

7. The device for releasing adult Trichogramma rubescens according to claim 1, characterized in that, The adjustable ventilation mechanism (6) includes ventilation holes (601), a rotating sealing air regulating plate (602), an air regulating plate guide rail (603), a ventilation adjustment buckle (604), and an angle limiting arc groove (605). A number of ventilation holes (601) are evenly opened in a fan shape on one side of the box top cover (1), and the fan angle is 50-70°. The rotating sealing air regulating plate (602) is attached to the upper inner side of the box top cover (1), and the rotating sealing air regulating plate (602) is arc-shaped and attached to the ventilation holes (601). The air regulating plate guide rail (603) is set along the rotation path of the rotating sealing air regulating plate (602), and the air regulating plate guide rail (603) is integrally formed with the box top cover (1).

8. The device for releasing adult Trichogramma rubescens according to claim 7, characterized in that, The upper end of the rotary sealing air regulating plate (602) is provided with a ventilation regulating buckle (604), and the top cover (1) of the box is provided with an angle limiting arc groove (605) along the rotation path of the ventilation regulating buckle (604). The rotary sealing air regulating plate (602) slides and rotates along the air regulating plate guide rail (603). The ventilation regulating buckle (604) passes through the angle limiting arc groove (605) and is fixedly connected to the rotary sealing air regulating plate (602). By controlling the ventilation regulating buckle (604) to slide along the angle limiting arc groove (605), the area of ​​the rotary sealing air regulating plate (602) blocking the ventilation hole (601) can be changed, so as to realize stepless adjustment of ventilation volume.

9. The device for releasing adult Trichogramma rubescens according to claim 1, characterized in that, The temperature and humidity monitoring component (7) includes a mounting box (701), a temperature sensor (702), a humidity sensor (703), and a display panel (704). The mounting box (701) is fixed to the inner side wall of the box top cover (1), and there are two mounting boxes (701). The temperature sensor (702) and the humidity sensor (703) are installed inside the two mounting boxes (701), respectively. The display panel (704) is embedded on the outer surface of the box top cover (1). The temperature sensor (702) and the display panel (704) are electrically connected, and the humidity sensor (703) and the display panel (704) are electrically connected.

10. A method for precise release of adult Trichogramma maxima in forests, employing the adult Trichogramma maxima release device described in any one of claims 1-9, characterized in that, Includes the following steps: S1. One to two days before the emergence of the parasitic wasp, the breeding card (204) of the parasitic wasp is hung on the card hook (203) inside the bee storage box (201) through the hanging hole (205). The card positioning support (206) is used to limit and fix the four corners of the parasitic wasp breeding card (204) to prevent the card from shifting and stacking. Then, the top cover (1) of the box is connected and fastened to the bee storage box (201) to form a cylindrical cavity structure of a box. An elastic protective sleeve (3) is wrapped at the joint to achieve overall sealing of the device, prevent the unemerged bees from escaping in advance, and isolate the forest from rainwater and ant intrusion. S2. After the device is assembled, it is placed in a static storage. On a daily basis, the emergence status of the parasitic bee breeding card (204) inside the bee storage box (201) is observed in real time through the transparent skylight (4) embedded in the inner side of the box top cover (1). The emergence node of the adult bees of the Trichogramma fasciculata is accurately controlled to determine the best time to release them in the forest. S3. Transfer the device to be released to the forest operation area. The temperature sensor (702) and humidity sensor (703) inside the box (701) are installed inside the box top cover (1) to collect the internal temperature and humidity data of the device in real time, and read the parameters through the display panel (704). According to the real-time ambient temperature and humidity in the forest, move the ventilation adjustment buckle (604) to slide along the angle limiting arc groove (605), drive the rotating sealing air regulating plate (602) to rotate along the air regulating plate guide rail (603), adjust the effective ventilation area of ​​the ventilation hole (601), and steplessly fine adjust the ventilation environment inside the device to adapt to the complex climate in the forest and ensure the stability of the survival environment for adult bees to emerge. S4. After confirming that the bee card has entered the concentrated emergence stage, bend the bent hanging strip (501) at the top of the box top cover (1) along the preset bending indentation line (503). Separate the magnetic sealing strip one (504) and magnetic sealing strip two (505) so that the hanging strip is perpendicular to the end face of the box top cover (1). Use the integrated hanging hook (502) to hang and fix the whole device to the upper and middle ventilation branches of the trees. Distribute the points evenly according to the distribution density of pests in the forest to ensure comprehensive control coverage. S5. After the device is suspended in place, the adult bee release opening (506) at the top of the box cover (1) is fully opened, and the adult Trichogramma wasps that have completed their emergence in the bee storage box (201) naturally fly out from the release opening and spread to the parasitic insect eggs in the forest. S6. After the parasitic wasp breeding card (204) has fully emerged and all adult wasps have been released, remove the hanging device from the branches in the forest, separate the top cover (1) and the bee storage box (201), clean the remaining bee shells, impurities and dirt inside, wipe and dry them, and store them neatly. They can be reused for subsequent release operations of Trichogramma bees in the forest.

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