CN114557319B - Armyworm breeding method - Google Patents
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- CN114557319B CN114557319B CN202210167789.4A CN202210167789A CN114557319B CN 114557319 B CN114557319 B CN 114557319B CN 202210167789 A CN202210167789 A CN 202210167789A CN 114557319 B CN114557319 B CN 114557319B
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- 229920001817 Agar Polymers 0.000 claims description 6
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 6
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
- A01K67/033—Rearing or breeding invertebrates; New breeds of invertebrates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/87—Re-use of by-products of food processing for fodder production
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- Life Sciences & Earth Sciences (AREA)
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- Animal Behavior & Ethology (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Feed For Specific Animals (AREA)
Abstract
The invention provides a feeding method of armyworms, which comprises the following steps: the method comprises the steps of firstly, building four sunlight greenhouse in a plastic greenhouse, building three rat-proof steel frame net sheds in the plastic greenhouse, installing ventilation, humidity control, temperature control, insect breeding frames and a temperature and humidity monitor in the greenhouse, hatching armyworm eggs in one sunlight greenhouse in a suspension mode, feeding the armyworm eggs by stages and instars, enabling the armyworm adults to copulate and lay eggs, and enabling the adults to copulate and begin to lay eggs until the eggs are finished, wherein the method utilizes a feeding mode of feeding the armyworm by stages and types, reduces the process of selecting aged larvae and simplifies the eclosion process of pupae, measures and calculates the average selection of 1000 heads and 5 days of armyworm, saves the time by 28.93 minutes, measures and calculates according to 150 thousands of breeding beneficial bugs, and can save labor cost by about 42.05 ten thousand yuan per year; the emergence rate of armyworm is improved by 7.44%; the survival rate of armyworm is improved by 9.5 percent; according to the selection of about 1000 armyworms for 5 days, the average egg laying amount of the adult worm in the egg laying period is increased by 5700 granules; the armyworm breeding period is shortened by 3-5 days.
Description
Technical Field
The invention belongs to the technical field of armyworm feeding methods, and particularly relates to an armyworm feeding method.
Background
The armyworm belongs to lepidoptera and noctuidae, is one of main insect pests harming crops, is predatory objects and natural hosts of natural enemy insects such as arma bug, beneficial bugs, middle red scofflaw and various larva beetles, has strong fertility, and is not serious in the phenomenon of self-killing of larvae, convenient for collective feeding and widely applied to artificial feeding of the natural enemy insects as prey insects.
However, in the existing artificial feeding process of the armyworms, the pupation rate of the armyworms and the average survival rate of the armyworms are low, and the pupation rate and the average survival rate of the armyworms become important factors influencing the oviposition of the armyworms; the dry feed for feeding the armyworms has higher cost and becomes another important factor influencing the large-scale feeding of the armyworms.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a feeding method of armyworm to solve the problems mentioned in the background art.
In order to solve the technical problems, the invention adopts the technical scheme that: a feeding method of armyworms comprises the following steps:
s1, firstly, building four sunlight temperature sheds in a plastic greenhouse, and installing a humidity control, temperature control and insect culture frame and a temperature and humidity monitor in the greenhouse;
s2, building three rat-proof steel frame net sheds in the plastic greenhouse, and installing a ventilation, humidity control, temperature control, insect culture frame and a temperature and humidity monitor in the greenhouse;
s3, planting green feeds required by feeding the armyworms around the base, wherein young leaves of old-variety corn are mainly used as the optimal green feeds for feeding armyworm larvae in summer and autumn, and young leaves of ryegrass are used as the optimal green feeds for feeding the armyworm larvae in winter and spring;
s4, the preparation method of the armyworm dry feed comprises the steps of firstly pouring 18750g of water into an electric heating barrel, heating to about 40 ℃, adding agar, and continuously stirring by using a stick so as to prevent the agar from coagulating into a mass. Heating to 100 deg.c, adding grass powder and wheat bran into stirrer, stirring for 1min, adding beer yeast, stirring for 2-3 min, adding cold water 6000g, and adding glucose, potassium sorbate and sodium methyl p-hydroxybenzoate. Cooling the feed to about 60 deg.C, adding vitamin C, stirring for 5min, cooling at room temperature, solidifying, and storing for the next day;
s5, hatching the armyworm eggs in one of the sunlight greenhouse in a suspension mode, wherein the hatching period is 3-4 d, the temperature is 23-26 ℃, the humidity is 45% -50%, and the hatching condition of the armyworm eggs is observed every day;
s6, feeding 1-2 instar armyworm larvae, wherein the instar of the 1 instar armyworm larvae is 3-4 d, and the instar of the 2 instar armyworm larvae is 3-4 d. Feeding the 1-2 th larvae of armyworms in a net shed of a rat-proof steel frame, wherein the temperature is 23-26 ℃, the humidity is 30-60%, when hatching is carried out for 3 days, the hatched 1 st larvae of armyworms are taken out together with the eggs of the armyworms and are placed into an insect-feeding cage which is preset in the net shed of the rat-proof steel frame, and the feeding density of the 1-2 th larvae of armyworms is about 5000-6000 heads per cage. Larvae with 1-2 instar of armyworm are fed with green feed, and the larval rearing cages are closed in time after the feed is added every time so as to prevent the larvae from escaping. Cleaning the insect-raising cage regularly every day to ensure sanitation and cleanness in the cage;
s7, feeding larvae with the armyworm of 3-4 ages, wherein the armyworm of 3 ages is 3-4 days, and the armyworm of 4 ages is 3-4 days. The larvae with 3-4 years old armyworm are raised in a steel frame net shed for preventing rats, the temperature is 23-26 ℃, and the humidity is 20-45%. After the mythimna separata larvae of 3 th instar enter the cage, the redundant mythimna separata larvae of 3 rd instar in the cage are separately filled into an empty mythimna separata cage for cage feeding, and the feeding density of the mythimna separata larvae of 3-4 th instar is about 3000 heads per cage. Feeding 3-4 instar armyworms with dry feed, cutting the prepared armyworm dry feed into blocks of 10cm multiplied by 10cm, the thickness of the armyworm dry feed is 0.5-1.0 cm, the armyworm dry feed is uniformly laid at the bottom in an insect cage, 1200g of armyworm dry feed is added according to 1200 g/cage for the first time to feed the armyworm larvae of 3-4 instar, the feed is supplemented in due time according to the feeding condition of the armyworm, and the door of the insect cage is closed in time after the feed is added every time to prevent the larvae from escaping. Regularly cleaning dry feeds, insect dung and the like which are not eaten and deteriorated every day, and ensuring sanitation and cleanness in the cage;
s8, feeding larvae of which the larvae are 5-6 th instar, wherein the larvae are 3-4d at the 5 th instar and 5-6 d at the 6 th instar. The 5-6 th larva of armyworm is raised in a steel frame net shed for preventing rats, the temperature is 23-26 ℃, and the humidity is 20-45%. After the armyworm larvae are raised to 5 th instar, the armyworm larvae of 5 th instar in the armyworm cage are subpackaged into empty armyworm raising plastic trays for raising in a tray-by-tray manner, and the raising density of the armyworm larvae of 5-6 th instar is about 1000 heads per tray. And timely feeding a proper amount of dry feed according to the feeding condition, cutting the prepared armyworm dry feed into blocks of 10cm multiplied by 10cm, wherein the thickness is about 1.5cm, and uniformly laying the dry feed at the bottom in a tray for feeding armyworm larvae. Adding the armyworm dry feed according to 1000 g/disc for the first time, and timely supplementing the feed according to the feeding condition of the armyworm. And cleaning the dry feeds which are not eaten and deteriorated regularly every day, and keeping the insect dung dry.
S9, selecting armyworm pupae, namely selecting about 1000 armyworms from the armyworm cages when the armyworm larvae are aged 4-5, transferring the armyworms into an armyworm culturing tray in a net shed of a rat-proof steel frame for culturing, wherein the temperature is 23-26 ℃, and the humidity is 20-45%. The feed is chiseled into cake blocks of 10cm × 10cm and 1.5cm in thickness by small ladles, and the cake blocks are uniformly spread in a insect-raising tray, and 9 cake blocks are ladled out from each tray. During the period, no mature larva needs to be selected, pupation is directly carried out in the worm manure generated by the mature larva, the worm manure is kept dry, and after the larva is completely pupated, high-quality pupae in the worm raising tray are directly selected by using a small gourd ladle.
S10, mating and oviposition of the armyworm imagoes, wherein the armyworm imagoes period is 13-14 d. Making a moth cage, placing 300-400 armyworm pupae selected into the moth cage in a sunlight greenhouse, ensuring that the temperature is 20-24 ℃, the relative humidity is in the environmental condition of 65-90 RH, and the armyworm pupae feathers into imagoes for 8-10 days, so that the imagoes can copulate and lay eggs by themselves;
s11, collecting egg masses, collecting myxozoon eggs every day at regular time in the egg laying period of 8-10 days after the adult mating starts to lay eggs, and feeding honey water until the egg laying is finished;
further, in S1, the sunlight shed is built in the greenhouse by utilizing transparent plastic plates and steel frames, a plurality of insect culture racks of 80cm multiplied by 200cm are installed in the sunlight shed and used for adult armyworm mating oviposition and armyworm egg suspension type incubation, each insect culture rack has 3 layers, the height of each layer is 60cm, the bottom layer is 10cm away from the ground, temperature control is completed through an installed air conditioner and a heater, and humidity control is completed through an ultrasonic humidifier and a dehumidifier.
Furthermore, in S2, the rat-proof steel frame net shed is a semi-closed net shed formed by square pipes and a rat-proof net, and a shed film and a film rolling device are further fixed on the outer side surface of the net shed. A plurality of 80cm multiplied by 200cm insect-raising frames are arranged in a rat-proof steel frame net shed and are used for feeding larva of armyworms and pupating the armyworms, each insect-raising frame has 3 layers, the layer height is 60cm, the bottom layer is 10cm away from the ground, ventilation is completed by opening or closing a communication area by driving a shed film to move upwards or downwards through an outer side film rolling device, temperature control is completed through an installed air conditioner and a heater, and humidity control is completed through a dehumidifier.
Furthermore, the insect cage is 57cm multiplied by 57cm and is made of 100-mesh nylon net and 4mm glass rods, the moth cage is 57cm multiplied by 57cm and is made of 100-mesh nylon net and 4mm glass rods, holes are symmetrically punched at the positions 10cm away from the two sides of the top of the moth cage, white nylon ropes penetrate through the holes, 6 insect cages penetrate through the holes, each insect cage is 5-6 meters long, one end of each insect cage is knotted and fixed, the other end of each insect cage naturally hangs down, the middle section of each insect cage is kept straight to allow adults to lay eggs, and 2 feeding holes are uniformly arranged at the periphery of each insect cage to facilitate feeding of honey water through a needle.
Furthermore, the insect-breeding tray is a plastic tray, and the size of the insect-breeding tray is 56cm multiplied by 37cm multiplied by 8cm.
Further, the egg mass collection is that after the adult insects copulate and begin to lay eggs, the knotted ends of the nylon ropes of the moth cage are untied regularly every day, the nylon ropes with the cut egg masses are extracted, collected and placed into the self-sealing bag, and the rest nylon ropes are knotted and fixed again until the egg laying is finished.
Further, in the S5, the suspended incubation is carried out, namely the armyworm egg masses produced on the nylon ropes on the same day are collected in a centralized manner and are placed into prepared self-sealing bags, and 6-8 nylon ropes are placed in each bag.
Further, in S10, 2 plastic culture dishes are placed at the bottom in the moth cage, wherein each culture dish is provided with a 1 piece of absorbent cotton block with the thickness of 6-8 cm and the thickness of 3-5 mm, and honey water with the concentration of 10% is injected for feeding the adult armyworms.
Compared with the prior art, the invention has the following advantages:
the invention utilizes the feeding mode of feeding the armyworm by stages and types, reduces the flow of selecting the aged larva and simplifies the eclosion flow of the pupa, selects the armyworm for about 1000 days on average and calculates, saves the time by 28.93 minutes, calculates according to the design of breeding 150 ten thousand of beneficial stinkbugs, saves 3504 labor and 120 yuan/bug all year round, and can save the labor cost by about 42.05 ten thousand yuan one year; the emergence rate of armyworm is improved by 7.44%; the survival rate of armyworm is improved by 9.5 percent; according to the selection of about 1000 armyworms for 5 days, the average egg laying amount of the adult worm in the egg laying period is increased by 5700 granules; the armyworm breeding period is shortened by 3-5 days. The green feed is used for feeding the 1-2 instar larva of the armyworm, and the calculation is carried out according to 200 ten thousand-head planning of breeding beneficial stinkbug, so that the cost of artificial feed can be saved by about 35 ten thousand yuan per year.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: a feeding method of armyworms comprises the following steps:
s1, firstly, building four sunlight temperature sheds in a plastic greenhouse, and installing a humidity control, temperature control and insect culture frame and a temperature and humidity monitor in the greenhouse;
s2, building three rat-proof steel frame net sheds in the plastic greenhouse, and installing a ventilation, humidity control, temperature control, insect culture frame and a temperature and humidity monitor in the greenhouse;
s3, planting green feeds required for feeding armyworms around the base, wherein young leaves of corn of old varieties are mainly used as the optimal green feeds for feeding armyworm larvae in summer and autumn, and young leaves of ryegrass are used as the optimal green feeds for feeding the armyworm larvae in winter and spring;
s4, the preparation method of the armyworm dry feed comprises the steps of firstly pouring 18750g of water into an electric heating barrel, heating to about 40 ℃, adding agar, and continuously stirring by using a stick so as to prevent the agar from coagulating into a mass. Heating to 100 deg.c, adding grass powder and wheat bran into stirrer, stirring for 1min, adding beer yeast, stirring for 2-3 min, adding cold water 6000g, and adding glucose, potassium sorbate and sodium methyl p-hydroxybenzoate. Cooling the feed to about 60 deg.C, adding vitamin C, stirring for 5min, cooling at room temperature, solidifying, and storing for the next day;
s5, hatching the armyworm eggs in one of the sunlight greenhouse in a suspension mode, wherein the hatching period is 3-4 d, the temperature is 23-26 ℃, the humidity is 45% -50%, and the hatching condition of the armyworm eggs is observed every day;
s6, feeding 1-2 instar armyworm larvae, wherein the instar of the 1 instar armyworm larvae is 3-4 d, and the instar of the 2 instar armyworm larvae is 3-4 d. Feeding 1-2 instar armyworm larvae in a net shed of a rat-proof steel frame at the temperature of 23-26 ℃ and the humidity of 30-60%, taking out the hatched 1 instar armyworm larvae together with armyworm eggs when hatching for 3 days, putting the larvae into an insect cage preset in the net shed of the rat-proof steel frame, and feeding the larvae of 1-2 instar armyworm at the density of about 5000-6000 heads per cage. Feeding 1-2 instar larvae of armyworms with green feed, and closing a larva cage after the feed is added every time so as to prevent the larvae from escaping. Cleaning the insect-raising cage regularly every day to ensure sanitation and cleanness in the cage;
s7, feeding larvae with 3-4 instars of armyworms, wherein the 3 instars of the armyworms are 3-4 days, and the 4 instars of the armyworms are 3-4 days. The larvae with 3-4 years old armyworm are raised in a steel frame net shed for preventing rats, the temperature is 23-26 ℃, and the humidity is 20-45%. After the mythimna separata larvae of 3 th instar enter the cage, the redundant mythimna separata larvae of 3 rd instar in the cage are separately filled into an empty mythimna separata cage for cage feeding, and the feeding density of the mythimna separata larvae of 3-4 th instar is about 3000 heads per cage. Feeding 3-4 instar armyworms with dry feed, cutting the prepared armyworm dry feed into blocks of 10cm multiplied by 10cm, the thickness of the armyworm dry feed is 0.5-1.0 cm, the armyworm dry feed is uniformly laid at the bottom in an insect cage, 1200g of armyworm dry feed is added according to 1200 g/cage for the first time to feed the armyworm larvae of 3-4 instar, the feed is supplemented in due time according to the feeding condition of the armyworm, and the door of the insect cage is closed in time after the feed is added every time to prevent the larvae from escaping. Regularly cleaning dry feeds, insect dung and the like which are not eaten and deteriorated every day, and ensuring sanitation and cleanness in the cage;
s8, feeding larvae of which the larvae are 5-6 th instar, wherein the larvae are 3-4d at the 5 th instar and 5-6 d at the 6 th instar. Feeding the 5-6 th larva in a net shed of a steel frame for preventing rats at the temperature of 23-26 ℃ and the humidity of 20-45%. After the armyworm larvae are raised to 5 th instar, the armyworm larvae of 5 th instar in the armyworm cage are subpackaged into empty armyworm raising plastic trays for raising in a tray-by-tray manner, and the raising density of the armyworm larvae of 5-6 th instar is about 1000 heads per tray. And timely feeding a proper amount of dry feed according to the feeding condition, cutting the prepared armyworm dry feed into blocks of 10cm multiplied by 10cm, wherein the thickness is about 1.5cm, and uniformly laying the dry feed at the bottom in a tray for feeding armyworm larvae. The armyworm dry feed is added for the first time according to 1000 g/disc, and the feed is timely supplemented according to the feeding condition of armyworm. And cleaning the dry feeds which are not eaten and deteriorated regularly every day, and keeping the insect dung dry.
S9, selecting armyworm pupae, namely selecting about 1000 armyworms from the armyworm cages when the armyworm larvae are aged 4-5, transferring the armyworms into an armyworm culturing tray in a net shed of a rat-proof steel frame for culturing, wherein the temperature is 23-26 ℃, and the humidity is 20-45%. Chiseling the fodder into cake blocks of 10cm × 10cm and 1.5cm in thickness with small dipper, and uniformly spreading in insect tray, wherein each tray contains 9 cake blocks. During the period, no mature larva needs to be selected, pupation is directly carried out in the generated worm excrement, the worm excrement is kept dry, and after the larva is completely pupated, high-quality pupae in the worm breeding tray are directly selected by using a small ladybug.
S10, mating and oviposition of the adult armyworms, wherein the adult armyworm period is 13-14 days. Making a moth cage, placing 300-400 armyworm pupae selected into the moth cage in a sunlight greenhouse, ensuring that the temperature is 20-24 ℃, the relative humidity is in the environmental condition of 65-90 RH, and the armyworm pupae feathers into imagoes for 8-10 days, so that the imagoes can copulate and lay eggs by themselves;
s11, collecting egg masses, collecting myxozoon eggs every day at regular time in the egg laying period of 8-10 days after the adult mating starts to lay eggs, and feeding honey water until the egg laying is finished;
it is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A feeding method of armyworm is characterized in that: the method comprises the following steps:
s1, firstly, building four sunlight greenhouse in a plastic greenhouse, installing humidity control, temperature control, insect culture frames and a temperature and humidity monitor in the greenhouse, wherein the sunlight greenhouse is built by transparent plastic plates and steel frames in the greenhouse, a plurality of 80cm, 200cm and 200cm insect culture frames are installed in the sunlight greenhouse and used for enabling adult armyworms to copulate and lay eggs and incubating armyworm eggs in a suspension mode, 3 layers of each insect culture frame are 60cm high, the bottom layer is 10cm away from the ground, the temperature control is completed through an installed air conditioner and a heater, and the humidity control is completed through an ultrasonic humidifier and a dehumidifier;
s2, firstly, building three rat-proof steel frame net sheds in the plastic greenhouse, and installing a ventilation, humidity control, temperature control, insect culture frame and a temperature and humidity monitor in the shed; the rat-proof steel frame net shed is a semi-closed net shed formed by square tubes and rat-proof nets, and a shed film and a film rolling device are fixed on the outer side surface of the net shed; a plurality of 80cm multiplied by 200cm insect-culturing frames are arranged in the rat-proof steel frame net shed and are used for larva feeding of armyworms and pupation of the armyworms, each insect-culturing frame has 3 layers with the layer height of 60cm, the bottom layer is 10cm away from the ground, ventilation is completed by opening or closing a communication area by driving a shed film to move upwards or downwards through an outer side film rolling device, temperature control is completed through an installed air conditioner and a heater, and humidity control is completed through a dehumidifier;
s3, planting green feeds required for feeding the armyworms around the base, wherein tender leaves of corns are used as the green feeds for feeding armyworm larvae in summer and autumn, and tender leaves of ryegrass are used as the green feeds for feeding the armyworm larvae in winter and spring;
s4, pouring 18750g of water into an electric heating barrel, heating to about 40 ℃, adding agar, continuously stirring by using a stick to prevent the agar from agglomerating, continuously heating to 100 ℃, pouring into a stirrer, adding grass meal and wheat bran, stirring for 1min, adding beer yeast, continuously stirring for 2-3 min, adding 6000g of cold water, and adding glucose, potassium sorbate and sodium methylparaben; cooling the feed to about 60 deg.C, adding vitamin C, stirring for 5min, cooling at room temperature, solidifying, and storing for the next day;
s5, hatching the armyworm eggs in one of the sunlight greenhouse in a suspension mode, wherein the hatching period is 3-4 d, the temperature is 23-26 ℃, the humidity is 45% -50%, and the hatching condition of the armyworm eggs is observed every day;
s6, feeding 1-2 instar larvae of armyworms, wherein the instar of the 1-2 instar larvae of the armyworms is 3-4 d, the 1-2 instar larvae of the armyworms are fed in a net shed of a rat-proof steel frame, the temperature is 23-26 ℃, the humidity is 30-60%, when the armyworms are incubated for 3 days, the 1 instar larvae of the armyworms which are already incubated are taken out together with eggs of the armyworms, the armyworms are placed in an insect cage which is preset in the net shed of the rat-proof steel frame, the size of the insect cage is 57cm, 57cm and 4mm glass rods, 2 feeding eyes are uniformly arranged on the periphery of the insect cage, honey water can be conveniently fed through a needle, and the feeding density of the 1-2 instar larvae of the armyworms is 5000-6000 heads per cage; feeding 1-2 instar larvae of armyworm with green feed, and closing an insect cage after the feed is added every time to prevent the larvae from escaping; cleaning the insect-raising cage regularly every day to ensure sanitation and cleanness in the cage;
s7, feeding larvae with 3-4 instars of armyworms, wherein the larvae with 3-4 instars of the armyworms are fed in a rat-proof steel frame net shed, the temperature is 23-26 ℃, and the humidity is 20-45%; after the armyworm larvae of 3 rd instar enter the armyworm cages, the redundant armyworm larvae of 3 rd instar in the armyworm cages are subpackaged into empty armyworm cages for cage-separated breeding, and the breeding density of the armyworm larvae of 3-4 th instar is about 3000 heads per cage; feeding larvae with 3-4 th instar of the armyworm with dry feed, cutting the prepared dry feed into blocks with the thickness of 10cm multiplied by 10cm and the thickness of 0.5-1.0 cm, uniformly laying the feed at the bottom in an insect cage, adding the dry feed per 1200g per cage for the first time for feeding the larvae with the 3-4 th instar of the armyworm, timely supplementing the feed according to the feeding condition of the armyworm, closing an insect cage door after the feed is added each time to prevent the larvae from escaping, regularly cleaning every day and ensuring sanitation and cleanness in the cage;
s8, feeding larvae of armyworm 5-6 th instar, wherein the armyworm 5-4 d is fed in the 5 th instar and the armyworm 6-6 d is fed in the 6 th instar; feeding 5-6 th larva of armyworm in a steel frame net shed for preventing rats, wherein the temperature is 23-26 ℃, and the humidity is 20-45%; after the armyworm larvae are raised to 5 th instar, subpackaging the armyworm larvae of 5 th instar in the armyworm cage into empty armyworm raising plastic trays, and raising the armyworm larvae in a tray-by-tray manner, wherein the raising density of the armyworm larvae of 5-6 th instar is about 1000 heads per tray; timely feeding a proper amount of dry feed according to the feeding condition, cutting the prepared armyworm dry feed into blocks of 10cm multiplied by 10cm, wherein the thickness is about 1.5cm, and uniformly laying the dry feed at the bottom in an armyworm breeding plastic tray for feeding armyworm larvae; adding armyworm dry feed according to 1000 g/disc for the first time, timely supplementing feed according to armyworm feeding conditions, regularly cleaning the dry feed which is not fed and deteriorated every day, and keeping the insect manure dry;
s9, selecting armyworm pupae, namely selecting about 1000 armyworms from the armyworm cages to be transferred into an armyworm raising tray in a net shed of a rat-proof steel frame to be raised when the armyworm larvae are 4-5-year old, wherein the temperature is 23-26 ℃, and the humidity is 20-45%; chiseling the feed into cake blocks of 10cm × 10cm and 1.5cm in thickness with small ladles, and uniformly spreading the cake blocks in insect-raising trays, wherein each tray ladles 9 cake blocks; during the period, mature larvae do not need to be selected, pupation is directly carried out in the generated insect feces, the insect feces is kept dry, and after the larvae are all pupated, high-quality pupae in the insect breeding tray are directly selected by using a small ladybug;
s10, mating and oviposition of armyworm adults, wherein the adult period of the armyworm is 13-14 d; making moth cages, wherein the moth cages are 57cm multiplied by 57cm and are made of 100-mesh nylon nets and 4mm glass rods, holes are symmetrically punched at the positions, 10cm away from the two sides of the tops of the moth cages, white nylon ropes are penetrated into the holes, 6 moths are penetrated into each moth cage, each moth cage is 5-6 m long, one end of each moth cage is knotted and fixed, the other end of each moth cage naturally hangs down, the middle section of each moth cage is kept straight for an adult to lay eggs, 2 plastic culture dishes are placed at the bottom in the moth cages, each culture dish is placed in a 3-5 mm defatted cotton block, honey water with the concentration of 10% is injected for feeding of adult armyworms, 300-400 selected armyworms are placed in the moth cages in a sunlight greenhouse, the temperature is guaranteed to be 20-24 ℃, the relative humidity is 65-90 RH environmental conditions, the environmental conditions are 8-10 days, the adult armyworms automatically emerge into imagoes, and the adult moths lay eggs;
s11, collecting egg masses, regularly collecting mythic insect eggs every day in a laying period of 8-10 days after the adult copulation begins laying eggs, feeding honey water until the laying is finished, specifically, regularly untiing the knotting end of the nylon rope of the moth cage every day after the adult copulation begins laying eggs, extracting the nylon rope with the cut egg masses, collecting and placing the nylon rope into a self-sealing bag, and knotting and fixing the rest nylon ropes again until the laying is finished.
2. The method of raising armyworms as set forth in claim 1, wherein in S9, said insect-raising tray is a plastic tray having a size of 56cm x 37cm x 8cm.
3. The feeding method of armyworm according to claim 1, wherein the incubation in S5 with hanging type is carried out by collecting the armyworm eggs laid on nylon ropes on the same day together and putting the collected eggs into prepared self-sealing bags, and 6-8 nylon ropes are put into each bag.
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