Method for feeding all-calendar-period evertestis extimaculatus

Abstract

The invention belongs to the technical field of plant protection, and discloses a method for feeding full-calendar-period evertestis exoptera, the method can be used for feeding larvae, pupae, adults, eggs and other insect states so as to complete a complete generation feeding cycle, and the method comprises the following specific steps: step 1, collecting insect sources and eggs; step 2, feeding larvae; step 3, feeding pupae and adults; and step 4, feeding eggs. The invention provides a set of complete feeding process from adults to next-generation adults, it is ensured that the evertestis foeniculatum can smoothly complete the developmental duration of the whole generation in the indoor environment, baby cabbage is used as feed and a moisturizing material, the feeding requirement of larvae is met, the humidity problem is effectively solved, and the survival rate of the larvae is increased. By means of the method, a large number of eversiella exuvialis can be bred, sufficient experimental materials are provided for scientific research, and research on biology, ecology and comprehensive treatment of the eversiella exuvialis is effectively guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of plant protection, and in particular relates to a method for raising anise thin-winged borer throughout the entire period. Background Art

[0002] Evergest is ext ima lis Scopo li, belongs to the order Lepidoptera, the family Pyralidae. It is also known as fennel borer, rape borer, and horn borer. There is one generation of fennel borer per year in Qinghai Province. On spring rapeseed, the larvae mainly bore into the rapeseed siliques to feed on the seeds. They can also spit silk to adorn the flowers on the inflorescences. As they age, the larvae move from one corner to another or from one plant to another, causing one or more holes in the rapeseed siliques and eating the seeds. When the larvae mature, they roam in the fields, ridges, or plots. It overwinters in soil cocoons under the surface of the surrounding wastelands and begins to pupate in late May of the following year. The time of its emergence from the soil is basically the same as the local rapeseed flowering period. It can mate and lay eggs on the same day of its emergence. The adults mainly lay eggs on the main stem, side branches, and fruit stalks of the rapeseed. The fennel thin-winged wild borer is a devastating pest of rapeseed fields in spring on the Qinghai Plateau. The average annual occurrence area is more than 20% of the total rapeseed planting area. In severe cases, individual fields will suffer a total harvest failure.

[0003] The hosts of the fennel thin-winged wild borer mainly include rapeseed, fennel, beet, cabbage, shepherd's purse, radish, kale, mustard, etc. In Qinghai Province, it mainly harms rapeseed. As an important control target in the control of pests in Qinghai spring rapeseed fields, it is very important to obtain a large number of samples of all insect stages of the fennel thin-winged wild borer, which can better provide material support for its physiological, biochemical, molecular biological and other research. However, although rapeseed siliques can be raised indoors, the supply of rapeseed siliques is limited by time periods. During the entire growing period of spring rapeseed in Qinghai, rapeseed siliques are only produced in July and August each year, and rapeseed siliques are not easy to preserve and cannot be kept for a long time at low temperatures. Preservation, secondly, its larvae like to bore into rapeseed siliques and feed on seeds, and it is not easy to observe the age, which is not conducive to the subsequent observation and grasp of the growth and development process of the larvae. This results in the lack of suitable alternative hosts indoors, making it impossible to complete the entire generation indoors. It can only rely on field sampling in June, July and August each year to meet the samples required for the experiment. The test time is greatly limited, and the current indoor breeding method can only cultivate larvae, and cannot cultivate a full generation of fennel thin-winged wild borer, as well as adults, eggs, larvae and pupae. Therefore, a method for indoor breeding of fennel thin-winged wild borer throughout the year is needed to ensure the continuity of biological research. Summary of the invention

[0004] The object of the present invention is to provide a method for raising the whole-life anise thin-winged wild borer to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above object, the present invention provides the following technical solution: a method for raising a full-term anise thin-winged wild borer, which can raise larvae from 1 to 5 years old, and allow them to successfully cocoon and pupate, emerge into adults and lay eggs, and then the eggs hatch new larvae, thereby completing a complete generation breeding cycle, and the specific steps are:

[0006] Step 1: Collection of insect sources and eggs: Cut rapeseed stems with egg masses from the field and bring them back to the laboratory. Insert them into a bucket of water to keep the host fresh.

[0007] Step 2, raising the larvae: first make a homemade breeding box, and put two pieces of baby cabbage leaves in the breeding box as food, then use scissors disinfected with 75% alcohol to cut the eggs, and then move the cut eggs to the homemade breeding box, cover them with 1-2 pieces of baby cabbage leaves, and then cover the lid, and move the homemade breeding box to an artificial climate box for breeding.

[0008] Step 3, raising pupae and adults: after the larvae are raised until they pupate, the pupae are moved to an insect raising device for eclosion;

[0009] Step 4, egg rearing: assemble the egg-laying device and prepare the egg-laying host plants; use a disposable transparent cup to catch a male and female adult from the insect cage and put them into the prepared egg-laying device, and use baby cabbage and cabbage as egg-laying hosts to calculate the egg-laying rate and hatching rate of the adults; take out the egg-laying hosts according to their freshness and the number of eggs laid, and raise them in boxes and put them into an incubator.

[0010] Preferably, the specific operation method of step 2 is:

[0011] A1, put the cut eggs into a homemade breeding box with two baby cabbage leaves as food, cover with 1-2 baby cabbage leaves, and then close the lid;

[0012] A2, move the homemade breeding box prepared in A1 to an LED artificial climate box with a light cycle of L:D=14:10, temperature: 23°C, humidity: 65±5%, and light intensity of 75l ux for breeding;

[0013] A3, regularly change food and make your own feeding box according to the insect age and state;

[0014] A4, adjust the number of fennel thin-winged wild borer in each lunch box according to the insect age and insect stage;

[0015] A5. After the larvae pupate, place the collected pupae in a homemade breeding box without a lid, and then put them into the insect breeding device until they emerge.

[0016] Preferably, the homemade breeding box comprises a homemade breeding box cover and a homemade breeding box body, the edges of the homemade breeding box cover and the homemade breeding box body are connected by snap fasteners, the homemade breeding box cover is provided with air holes, the insect raising device comprises an insect raising cage and a sleeve, the outer wall of the insect raising cage is provided with a sleeve, the egg-laying device comprises an egg-laying device cover, an egg-laying device body and an iron wire, and the top of the egg-laying device cover is provided with air holes.

[0017] Preferably, in step 4, the assembling method of the egg-laying device is:

[0018] B1, first use wire to string 1 to 2 host leaves together and suspend them in the egg-laying device box;

[0019] B2, bend the extra wires at both ends of the wire along the bottom of the box to keep the egg-laying host stable;

[0020] B3. Finally, cover the egg-laying device box and set aside.

[0021] Preferably, the specific operation method of step six is:

[0022] C1, 1-4 days after mating, the eggs are laid, and the eggs are taken out and separated into boxes and placed in an incubator according to the freshness of the spawning host, the state of the eggs and the number of eggs laid;

[0023] C2, when baby cabbage is used as the host, the baby cabbage is hung in the box, the water evaporates quickly, and it needs to be replaced every 1-2 days. When the daily egg production is high, the baby cabbage needs to be replaced in time until it stops laying eggs, and then the baby cabbage with eggs is taken out;

[0024] C3, when cabbage is used as the host, the cabbage is hung in the box, the water is not easy to evaporate, and the freshness of the egg-laying host is kept better. New fresh cabbage is replaced 1-2 days after the adult lays eggs. When the egg-laying amount is high, new fresh cabbage is replaced every day until it stops laying eggs, and then the cabbage with eggs is taken out;

[0025] C4, after laying eggs, remove the eggs before the blackhead stage, and then start hatching and raising from step 2.

[0026] Preferably, the indoor grown baby cabbages used in the method can be used as materials for feeding 1-5th instar larvae. Using them on eggs and young larvae can retain moisture and prevent the larvae from escaping. During the hatching stage, spreading the baby cabbages on the bottom of a homemade breeding box can serve as a moisturizing material for mature larvae and pupae.

[0027] Preferably, in step five, when baby cabbage is used as the egg-laying host, the average egg-laying amount is 75 eggs / pair, and the average hatching rate is 98.43%; when cabbage is used as the egg-laying host, the average egg-laying amount is 247.33 eggs / pair, and the average hatching rate is 98.81%.

[0028] Preferably, when cabbage is used as the host, the fennel thin-winged wild borer can complete the feeding of a whole generation, and the development period of the whole generation is 42-88 days, the average development period is 58.16-58.79 days, and the average survival rate is 84.67%.

[0029] Preferably, the pupae and mature larvae are separated in time after the larvae pupate, and the collected pupae are placed in a homemade breeding box without a lid, and placed in an insect cage until they emerge.

[0030] Preferably, the homemade breeding box body is a square box body, the egg-laying device box body is a cylindrical box body, the cross-sectional diameter of the iron wire is short, and the extra two ends are bent toward the bottom of the box along the egg-laying device box body without affecting the fit between the box cover and the box body, and the adult insects in the box will not fly out, and the baby cabbage and cabbage leaves suspended in the box body can well simulate the growth environment of wild host plants.

[0031] The beneficial effects of the present invention are as follows:

[0032] 1. The present invention provides a complete breeding process from adults to the next generation of adults, ensuring that the fennel thin-winged wild borer can successfully complete the development period of the entire generation in an indoor environment. The use of baby cabbage as feed and moisturizing material not only meets the feeding needs of the larvae, but also effectively solves the humidity problem. The method can be used to breed fennel thin-winged wild borers in large quantities, providing sufficient experimental materials for scientific research, and effectively ensuring the research on the biology, ecology and comprehensive management of the insect;

[0033] 2. The present invention describes in detail every step of the breeding process, including breeding conditions, food preparation, and the design of the breeding box and the egg-laying device, so it has high repeatability, which is convenient for other researchers to replicate and apply in the laboratory, successfully solving the problem that the fennel thin-winged wild borer is difficult to propagate indoors, and providing stable experimental materials for scientific research;

[0034] 3. The present invention can make adjustments according to the age, insect state and number of the larvae during the breeding process to ensure that the larvae in each breeding box can be properly cared for and managed. This method is not only suitable for the anise thin-winged wild borer, but can also provide a reference for the indoor artificial breeding of other Lepidoptera insects, ensuring its wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a flow chart of raising fennel thin-winged wild borer of the present invention;

[0036] Figure 2 This is a schematic diagram of the structure of the self-made breeding box of the present invention;

[0037] Figure 3 This is a schematic diagram of the structure of the insect cage of the present invention;

[0038] Figure 4 It is a schematic diagram of the box structure of the egg-laying device of the present invention.

[0039] In the picture: 1. Homemade breeding box lid; 2. Homemade breeding box body; 3. Insect cage; 4. Sleeve; 5. Egg-laying device lid; 6. Egg-laying device body; 7. Silver wire. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] like Figures 1 to 4 As shown, the embodiment of the present invention provides a method for raising the whole-stage anise thin-winged wild borer, which can raise larvae from 1 to 5 instars, and allow them to successfully cocoon and pupate, emerge into adults and lay eggs, and then the eggs hatch new larvae, thereby completing a complete generation rearing cycle, and the specific steps are:

[0042] Step 1: Collection of insect sources and eggs: Cut rapeseed stems with egg masses from the field and bring them back to the laboratory. Insert them into a bucket of water to keep the host fresh.

[0043] Step 2, larval rearing: first make a homemade rearing box, and put two baby cabbage leaves in the rearing box as food, then cut the eggs with scissors disinfected with 75% alcohol, and then move the cut eggs to the homemade rearing box, cover it with 1-2 baby cabbage leaves, and then cover it with a lid, and move the homemade rearing box to an artificial climate box for rearing;

[0044] Step 3, raising pupae and adults: after the larvae are raised until they pupate, the pupae are moved to an insect raising device for eclosion;

[0045] Step 4, egg rearing: assemble the egg-laying device and prepare the egg-laying host plant; use a disposable transparent cup to catch a male and female adult from the insect cage 3 and put them into the prepared egg-laying device, and use baby cabbage and cabbage as egg-laying hosts to calculate the results of the adult egg-laying rate and hatching rate; take out the egg-laying host according to the freshness and the number of eggs laid, and raise them in boxes and put them into an incubator.

[0046] Since the egg-laying time varies, the freshness of the egg-laying host will affect the egg-laying of adults and the hatching of later eggs. It is necessary to take out the eggs according to the freshness of the egg-laying host and the number of eggs laid, and place them in homemade breeding boxes for hatching and breeding, and raise them in different boxes according to age, insect stage, and number of larvae.

[0047] The present invention provides a complete breeding process from adults to the next generation of adults, ensuring that the fennel thin-winged wild borer can successfully complete the development period of the entire generation in an indoor environment, wherein the use of baby cabbage as feed and moisturizing material not only meets the feeding needs of the larvae, but also effectively solves the humidity problem. The method can breed a large number of fennel thin-winged wild borers, provides sufficient experimental materials for scientific research, and effectively guarantees the research on the biology, ecology and comprehensive management of the insect.

[0048] The present invention describes in detail each step of the breeding process, including breeding conditions, food preparation, design of breeding boxes and egg-laying devices, etc., so it has high repeatability, which is convenient for other researchers to replicate and apply in the laboratory. It successfully solves the problem that anise thin-winged wild moth is difficult to propagate indoors, and provides stable experimental materials for scientific research.

[0049] The specific operation method of step three is as follows:

[0050] A1, put the cut eggs (about 30 eggs) into a homemade breeding box (16.3cm×11.3cm×6.4cm) with two pieces of baby cabbage leaves (25g-35g) as food, cover with 1-2 pieces of baby cabbage leaves (to prevent 1-3 instar larvae from escaping and to keep moisture), and then close the lid;

[0051] A2, move the homemade breeding box prepared in A1 to an LED artificial climate box with a light cycle of L:D=14:10, temperature: 23°C, humidity: 65±5%, and light intensity of 75l ux for breeding;

[0052] A3, regularly change food and make your own feeding box according to the insect age and state;

[0053] From the eggs to the third instar, it is not necessary to frequently change the food and the homemade feeding box. You need to frequently observe whether the food is rotten and replace it if it is rotten. The food and the homemade feeding box need to be replaced every 2-3 days for the fourth instar; the food and the homemade feeding box need to be replaced every 1-1.5 days for the fifth instar; the food needs to be replaced every 7-8 days for mature larvae. The mature larvae do not eat during this period. The main purpose of changing the food is to keep moisture and form cocoons.

[0054] A4, adjust the number of fennel thin-winged wild borer in each lunch box according to the insect age and insect stage;

[0055] There is no need to separate the eggs from hatching to the third instar; 20 4th instar larvae are placed in each homemade feeding box, and the amount of food in each homemade feeding box is about 25g-35g; 10 5th instar larvae are placed in each homemade feeding box, and the amount of food in each homemade feeding box is about 25g-35g; 10 mature larvae are placed in each homemade feeding box, and the amount of food in each homemade feeding box is about 20g-30g, and this food is mainly for moisture retention and cocooning;

[0056] A5. After the larvae pupate, place the collected pupae in an uncovered homemade breeding box, and then place them in an insect breeding device until they emerge.

[0057] Among them, the homemade breeding box includes a homemade breeding box cover 1 and a homemade breeding box body 2, the edges of the homemade breeding box cover 1 and the homemade breeding box body 2 are connected by snap buckles, the homemade breeding box cover 1 is provided with air holes, the insect raising device includes an insect raising cage 3 and a sleeve 4, the outer wall of the insect raising cage 3 is provided with the sleeve 4, the egg-laying device includes an egg-laying device cover 5, an egg-laying device body 6 and a silver iron wire 7, and the top of the egg-laying device cover 5 is provided with air holes.

[0058] The staff can use the flame of an alcohol lamp to burn a pin red, and then poke holes on the lid 1 of the homemade breeding box. Among them, the diameter of the air holes in the homemade breeding box used for 1-4 instar larvae is 1.3mm-1.6mm, and the number of air holes is 20-30; the diameter of the air holes in the homemade breeding box used for 5th instar and mature larvae is 1.6mm-1.9mm, and the number of air holes is 15-25. The diameter of the air holes on the lid 5 of the egg-laying device is 2.3mm-2.8mm, and the number is 15. The diameter of the silver iron wire 7 is 0.55mm and the length is 40cm.

[0059] Wherein, in said step 4, the assembling method of the egg-laying device is:

[0060] B1, first use silver wire 7 to string 1 to 2 host leaves (baby cabbage or cabbage) and suspend them in the egg-laying device box 6;

[0061] B2, bend the extra wires at both ends of the silver wire 7 along the bottom of the box body to keep the egg-laying host stable;

[0062] B3, finally cover the egg-laying device box cover 5 for standby use.

[0063] The specific operation method of step six is ​​as follows:

[0064] C1, 1-4 days after mating, the eggs are laid, and the eggs are taken out and separated into boxes and placed in an incubator according to the freshness of the spawning host, the state of the eggs and the number of eggs laid;

[0065] C2, when baby cabbage is used as the host, the baby cabbage is hung in the box, the water evaporates quickly, and it needs to be replaced every 1-2 days. When the daily egg production is high, the baby cabbage needs to be replaced in time until it stops laying eggs, and then the baby cabbage with eggs is taken out;

[0066] C3, when cabbage is used as the host, the cabbage is hung in the box, the water is not easy to evaporate, and the freshness of the egg-laying host is kept better. New fresh cabbage is replaced 1-2 days after the adult lays eggs. When the egg-laying amount is high, new fresh cabbage is replaced every day until it stops laying eggs, and then the cabbage with eggs is taken out;

[0067] C4, after laying eggs, remove the eggs before the blackhead stage, and then start hatching and raising from step 3.

[0068] Among them, the indoor grown food baby cabbage used in this method can be used as a material for feeding 1-5th instar larvae. Using it on eggs and young larvae can keep moisture and prevent the larvae from escaping. During the hatching stage, spreading the baby cabbage on the bottom of the homemade breeding box 2 can be used as a moisturizing material for mature larvae (pre-pupae stage) and pupae (pupae stage).

[0069] Four cruciferous crops, namely baby cabbage, purple cabbage, cabbage and rapeseed, are selected as hosts for the larvae of the anise thin-winged wild borer to feed and make cocoons. During the breeding process, it is found that when the larvae feed on rapeseed, they spin silk and molt and roll themselves up in the rapeseed leaves each time, and it is not easy to accurately grasp their age during observation; when cabbage and purple cabbage are used as feeding materials, they cannot make cocoons well because the leaves of purple cabbage and cabbage are relatively hard; when they feed on baby cabbage, the above two situations can be well avoided. Baby cabbage is easy to grow and its market supply is not restricted by seasons. Therefore, the feeding material used in the present invention is baby cabbage.

[0070] Among them, in the step 5, when baby cabbage is used as the egg-laying host, the average egg-laying amount is 75 eggs / pair, and the average hatching rate is 98.43%. When cabbage is used as the egg-laying host, the average egg-laying amount is 247.33 eggs / pair, and the average hatching rate is 98.81%.

[0071] Results of adult egg-laying rate and hatching rate (the amount of adults of Anise Thin-winged Wild Moth placed: a pair of unmated male and female adults were placed in the egg-laying device using baby cabbage and cabbage as egg-laying hosts, with 6 replicates for each treatment)

[0072] Oviposition host Average egg laying amount / pair Average hatching rate / % Baby cabbage 75 98.43％ Kale 247.33 98.81％

[0073] Among them, when cabbage is used as the host, the fennel thin-winged wild borer can complete the feeding of the entire generation, and the development period of the entire generation is 42-88 days, the average development period is 58.16-58.79 days, and the average survival rate is 84.67%.

[0074] When cabbage is used as the oviposition host, the survival rate and development period of each stage of the fennel thin-winged wild borer reared indoors using this method are as follows:

[0075]

[0076] Among them, the pupae and mature larvae were separated in time after the larvae pupated, and the collected pupae were placed in a homemade breeding box (10-15 pupae / box) without covering the lid, and placed in an insect cage (33.9cm×33cm×33.3cm) until they emerged.

[0077] Among them, the self-made breeding box body 2 is a square box body, the egg-laying device box body 6 is a cylindrical box body, the silver iron wire 7 has a short cross-sectional diameter, and the extra two ends are bent toward the bottom of the box along the egg-laying device box body 6, which will not affect the fit between the box cover and the box body, and the adult insects in the box will not fly out, and the baby cabbage and cabbage leaves suspended in the box body simulate the growth environment of wild host plants very well.

[0078] Using cabbage as the egg-laying host, the male and female adults were induced to mate and lay eggs. It was found that the space for male and female adults to move in the square box was limited, which was not conducive to their mating and laying eggs, and the egg-laying amount was extremely low. The cylindrical box solved the problem of egg-laying space, and the cylindrical box was easy to obtain.

[0079] The breeding process can be adjusted according to the age, stage and number of the larvae to ensure that the larvae in each breeding box can be properly cared for and managed. This method is not only suitable for the fennel thin-winged wild moth, but can also provide a reference for the indoor artificial breeding of other Lepidoptera insects, ensuring its wide applicability.

[0080] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0081] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for raising a full-term anise thin-winged wild borer, characterized in that: This method can raise larvae from 1 to 5 years old, and allow them to successfully cocoon and pupate, emerge into adults and lay eggs, and then the eggs hatch new larvae, thus completing a complete generation breeding cycle. The specific steps are: Step 1: Collection of insect sources and eggs: Cut rapeseed stems with egg masses from the field and bring them back to the laboratory. Insert them into a bucket of water to keep the host fresh. Step 2, larval rearing: first make a homemade rearing box, and put two baby cabbage leaves in the rearing box as food, then cut the eggs with scissors disinfected with 75% alcohol, and then move the cut eggs to the homemade rearing box, cover it with 1-2 baby cabbage leaves, and then cover it with a lid, and move the homemade rearing box to an artificial climate box for rearing; Step 3, raising pupae and adults: after the larvae are raised until they pupate, the pupae are moved to an insect raising device for eclosion; Step 4, egg rearing: assemble the egg-laying device and prepare the egg-laying host plant; use a disposable transparent cup to catch a male and female adult from the insect cage (3) and put them into the prepared egg-laying device, and use baby cabbage and cabbage as egg-laying hosts to calculate the egg-laying rate and hatching rate of the adults; take out the egg-laying hosts according to their freshness and the number of eggs laid, divide them into boxes for rearing and put them into an incubator.

2. A method for raising the whole-period fennel thin-winged wild borer according to claim 1, characterized in that: The specific operation method of step 2 is: A1, put the cut eggs into a homemade breeding box with two baby cabbage leaves as food, cover with 1-2 baby cabbage leaves, and then close the lid; A2, move the homemade breeding box prepared in A1 to an LED artificial climate box with a light cycle of L:D=14:10, temperature: 23°C, humidity: 65±5%, and light intensity of 75lux for breeding; A3, regularly change food and make your own feeding box according to the insect age and state; A4, adjust the number of fennel thin-winged wild borer in each lunch box according to the insect age and insect stage; A5. After the larvae pupate, place the collected pupae in a homemade breeding box without a lid, and then put them into the insect breeding device until they emerge.

3. A method for raising the whole-period fennel thin-winged wild borer according to claim 1, characterized in that: The self-made breeding box comprises a self-made breeding box cover (1) and a self-made breeding box body (2); the edges of the self-made breeding box cover (1) and the self-made breeding box body (2) are connected by snap fasteners; the self-made breeding box cover (1) is provided with air holes; the insect raising device comprises an insect raising cage (3) and a sleeve (4); the outer wall of the insect raising cage (3) is provided with the sleeve (4); the egg-laying device comprises an egg-laying device cover (5), an egg-laying device body (6) and an iron wire (7); the top of the egg-laying device cover (5) is provided with air holes.

4. The method for raising the whole-period fennel borer according to claim 1, characterized in that: In step 4, the assembling method of the egg-laying device is as follows: B1, first use iron wire (7) to string 1 to 2 host leaves together and suspend them in the egg-laying device box (6); B2, bend the extra wires at both ends of the wire (7) along the bottom of the box body to keep the egg-laying host stable; B3, finally cover the egg-laying device box cover (5) for standby use.

5. The method for raising the whole-period fennel borer according to claim 1, characterized in that: The specific operation method of step six is: C1, 1-4 days after mating, the eggs are laid, and the eggs are taken out and divided into boxes for breeding and placed in an incubator according to the freshness of the spawning host, the state of the eggs and the number of eggs laid; C2, when baby cabbage is used as the host, the baby cabbage is hung in the box, the water evaporates quickly, and it needs to be replaced every 1-2 days. When the daily egg production is high, the baby cabbage needs to be replaced in time until it stops laying eggs, and then the baby cabbage with eggs is taken out; C3, when cabbage is used as the host, the cabbage is hung in the box, the water is not easy to evaporate, and the freshness of the egg-laying host is kept better. New fresh cabbage is replaced 1-2 days after the adult lays eggs. When the egg-laying amount is high, new fresh cabbage is replaced every day until it stops laying eggs, and then the cabbage with eggs is taken out; C4, after laying eggs, remove the eggs before the blackhead stage, and then start hatching and raising from step 2.

6. The method for raising the whole-life anise thin-winged wild borer according to claim 1, characterized in that: The baby cabbages grown indoors in the method can be used as materials for feeding 1-5th instar larvae. Using them on eggs and young larvae can keep moisture and prevent the larvae from escaping. During the hatching stage, the baby cabbages are spread on the bottom of a homemade breeding box (2) to serve as moisture-keeping materials for mature larvae and pupae.

7. The method for raising the whole-period fennel borer according to claim 1, characterized in that: In the step 5, when baby cabbage is used as the egg-laying host, the average egg-laying amount is 75 eggs / pair, and the average hatching rate is 98.43%. When cabbage is used as the egg-laying host, the average egg-laying amount is 247.33 eggs / pair, and the average hatching rate is 98.81%.

8. The method for raising the whole-life anise thin-winged wild borer according to claim 5, characterized in that: When cabbage is used as the host, the fennel thin-winged wild borer can complete the feeding of an entire generation, and the development period of the entire generation is 42-88 days, the average development period is 58.16-58.79 days, and the average survival rate is 84.67%.

9. A method for raising the whole-life anise thin-winged wild borer according to claim 2, characterized in that: After the larvae pupate, separate the pupae from the mature larvae in time, put the collected pupae in a homemade breeding box without covering the lid, and put them in an insect cage until they emerge.

10. The method for raising the whole-life anise thin-winged wild borer according to claim 3, characterized in that: The self-made breeding box body (2) is a square box body, the egg-laying device box body (6) is a cylindrical box body, the cross-sectional diameter of the iron wire (7) is short, and the extra two ends are bent along the egg-laying device box body (6) toward the bottom of the box without affecting the fit between the box cover and the box body, and the adult insects in the box will not fly out, and the baby cabbage and cabbage leaves suspended in the box body well simulate the growth environment of wild host plants.

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