CATDOLL : CATDOLL: How to raise grasshoppers at home? Are grasshoppers beneficial insects or pests?

How to raise grasshoppers at home? Are grasshoppers beneficial insects or pests?

1. Breeding shed construction: The shed is built in a ventilated sunny place with a height of about 1.5-2m. The floor area is adjusted according to the number of grasshoppers (about 150 square meters for every 10,000 grasshoppers). Sandy loam is the best soil. The ground is about 10cm higher than the surrounding ground. Monocotyledonous plants such as wheat or corn are planted in the shed. 2. Feeding management: The suitable growth and development temperature is 25-32℃, the suitable relative humidity is 85-92%, and the suitable soil moisture content is 15-18%.

1. How to raise grasshoppers at home

1. Construction of breeding shed

(1) The breeding shed should be built in a well-ventilated and sunny place. The floor of the shed should be about 10 cm higher than the surrounding ground (to facilitate drainage), and sandy loam is the best soil.

(2) Plant monocotyledonous plants such as wheat or corn on the ground of the breeding greenhouse for grasshoppers to eat.

(3) Use angle iron as the support of the greenhouse. Then, depending on the size of the greenhouse (usually every 10,000 grasshoppers occupy an area of ​​about 15 square meters), use gauze as the cover of the greenhouse, bury the bottom edge underground, and leave a door for people to enter and exit, with a zipper on the door.

(4) The height of the breeding greenhouse is about 1.5-2m, and the outside of the greenhouse can be covered with plastic sheeting.

(5) Complete the construction of the greenhouse before the end of April.

2. Feeding and management

(1) Breeding environment conditions

The suitable growth temperature for grasshoppers is 25-32℃, the suitable relative humidity is 85-92%, and the suitable soil moisture content is 15-18%. When the temperature is below 14℃ or above 40℃, grasshoppers gradually die, and when the temperature is 28-30℃, grasshopper eggs begin to hatch.

(2) Incubation

① Mix the soil and sawdust powder in a ratio of 1:2, control the water content at about 20-30%, then spread the soil on the container (thickness is about 3-5cm), then spread the grasshopper eggs on the soil, and finally cover with a layer of mixed soil (thickness is about 1cm), and cover with a layer of film.

② Check every half a day. If you find baby grasshoppers hatching, use a soft-bristled brush to brush them onto the food (the hatching time is about 10-15 days).

(3) Spawning management

① It takes about 27-35 days for a grasshopper to develop from emerging from the soil to becoming an adult. During this period, it molts every 5-7 days, for a total of 5 times (pay attention to rain protection during the 1st to 3rd instar).

② Grasshoppers start to mate and lay eggs after the fifth instar, with each laying about 70 to 100 eggs. During the egg-laying period, appropriate interference can be given to allow the grasshoppers to migrate, which can effectively increase the number and quality of eggs.

③ After spawning, before freezing, cover the spawning area with a layer of wheat bran and weeds to keep it warm and moisturize.

④ If the grasshoppers are not for breeding, sell them promptly after they reach adulthood.

2. Are grasshoppers beneficial insects or pests?

1. Locusts are commonly known as grasshoppers, which are pests.

2. Locusts are herbivorous animals, and they mainly rely on chewing mouthparts to bite the leaves and flower buds of plants, which eventually form notches and holes (the amount of food consumed by adults accounts for 75% of their lifetime). In severe cases, all the leaves and flower buds of plants are eaten.

3. There are more than 1,000 known locust species in my country, of which more than 60 species are harmful to agriculture, forestry and animal husbandry. Common locusts that can cause harm and the crops they harm are as follows: East Asian migratory locust, rice locust, sugarcane locust, sharp-winged locust mainly harms Gramineae plants, short-winged locust, benzene locust, negative locust mainly harms beans, potatoes, sweet potatoes and other crops, cotton locust and negative locust mainly harm cotton, bamboo locust mainly harms bamboo forests, Siberian locust, halberd-patterned locust, small car locust, forage locust, young locust, scab locust and Italian locust mainly harm forage.

How to do locust breeding well?

The locust breeding method is as follows:

1. Construction of locust breeding shed

The breeding shed should be built in a ventilated and sunny place. The floor of the shed should be about 10 cm higher than the surrounding ground for drainage. The soil should preferably be sandy loam to facilitate the production of locust eggs. Monocotyledonous plants such as wheat or corn should be planted on the floor of the breeding shed to prepare for locusts to eat. The construction area should be determined according to the number of locusts. About 15 square meters are required for every 10,000 locusts. The support of the shed is built with angle irons, wooden sticks, etc., and then according to the size of the shed, the shed cover is made of gauze, and the bottom edge is buried in the ground, leaving a door with a zipper to prevent locusts from running out and people from entering and leaving the shed. The height of the shed should be 1.5 to 2 meters. For heat preservation and rain protection, plastic cloth can be covered outside the shed. When breeding locusts under natural conditions, the construction of the shed must be completed before the end of April.

2. Feeding and management of locusts

The suitable temperature for locust development is 25-32℃, relative humidity is 85%-92%, and soil moisture content is 15%-18%. When the temperature is lower than 14℃ or higher than 40℃, locusts gradually stop eating and die. When the temperature reaches 28-30℃, locust eggs begin to hatch. First, prepare non-toxic soil and sawdust powder in a ratio of 1:2, with a moisture content of 20%-30%. Spread 3-5 cm of soil in a container and pat it down, then spread the locust eggs on the soil and cover it with about 1 cm thick mixed soil. Finally, cover the container with a film and check it once every half a day. When small locusts are found, use a soft brush to brush them onto the food in the shed. After 10-15 days, small locusts will hatch. Newly unearthed small locusts like to eat fresh monocotyledonous plants such as wheat seedlings, corn seedlings, and weeds, but their appetite is very small. Locusts of the 1st to 3rd instar should be protected from rain. It takes about 27 to 35 days for locusts to emerge from the soil and become adults. During this period, they shed their skin every 5 to 7 days, for a total of 5 times. Locusts after the 5th instar gradually begin to mate and lay eggs, and each locust lays about 70 to 100 eggs. In order to feed and lay eggs, locusts like to live in groups and migrate. Therefore, appropriate interference should be given to locusts from the time they emerge to before they lay eggs, so that they can migrate and increase the number and quality of eggs they lay.

Before the eggs are frozen, they should be covered with some wheat bran, weeds, etc. to keep them warm and moist to prevent them from cracking. If adult locusts are not used for breeding, they should be sold in time.

3. Precautions for hatching eggs

To hatch locust eggs, use a few bricks to build a small pool. It is best to sprinkle some water on the bottom and then flatten it with soil. Then sprinkle the eggs evenly on it, and cover it with 2-3 centimeters of wet sawdust. When the little locusts come out, they can easily drill out of the sawdust. During this period, the temperature must reach above 25 degrees and the locusts will begin to hatch quickly. The sawdust on top should be sprayed with water every 2-3 days. If it is too dry, the eggs will be damaged by the sun. During the spraying process, it is best not to spray very cold water at home. It is best to use warm water that can be exposed to the sun for a few hours outside. Try to spray warm water on it in the afternoon, because too cold water will affect its slow hatching.

4. Issues that should be paid attention to in the management of small locusts

The newly emerged small locusts are only as big as flies, very small. If it rains heavily, you should cover part of them with plastic sheets to prevent them from being washed to death by the heavy rain. Generally, it will only rain a few days. After 7 days, it doesn't matter if it rains a little. The newly emerged small locusts eat very little, so you'd better feed them some relatively tender green grass, so that the small locusts that grow up are healthier and bigger. Locusts shed their skin once every 7 days to become one age. After they reach the 3rd age, you can feed them some older grass, or some hay powder, wet it with water and sprinkle it in the shed.

5. Issues that should be paid attention to when raising locusts

If the locusts are too hungry, the big locusts will eat the small locusts. They will not bite at night, in the morning or in the evening. It is mainly at noon. If you make them hungry and thirsty at this time, they will eat the small ones. Therefore, it is best to feed them grass once during these hours and everything will be solved.

Some breeding sheds may have ants, mole crickets and other insects, which are not very harmful to locusts, but it is still better to try. However, pesticides cannot be used because there will be residues that are harmful to the growth of locusts. To eliminate ants, you can smash the nest and kill them with boiling water. Mole crickets can be illuminated by a light bulb. Put a large basin of water underneath. At night, the mole crickets will run to the light and can be killed.

Breeding technology is one aspect. Your consideration is right. The key is sales. If you wait for recycling, you will be fooled. You need to build your own channels. If you don't have good channels, it is recommended to breed common goods. Many special breedings fail because of channel reasons. My friend lost money by breeding emus. As for technology, I will briefly introduce some of them. You need to learn them well. Locusts are what people often call grasshoppers. Although they are pests, they are delicious and nutritious. They are a famous dish on people's tables. The investment is small, but the return is many years. The breeding cost is low and the profit is the highest. It can be said that one cent of investment will return ten thousand. The investment in breeding locusts is not very large. Because locusts have strong reproductive capacity, one locust lays about 50-80 eggs, and there is no disease. The cost is low, its feed is grass, you only need to build a shed and cover it with screens, the growth period is 50 days, three generations in the north, and it can grow and reproduce continuously in the south. In my country, eating locusts has a long history. People are used to washing locusts, frying them in oil, and then eating them after sprinkling them with salt, pepper powder, etc. Some restaurants and hotels fry and deep-fry locusts to make delicious dishes such as "Flying Locust Tengda" and "Land Flying Shrimp". Locusts can also be processed into canned food, dehydrated dry products, frozen food, pickled food and other flavored foods. The following are locust breeding techniques for reference: Preliminary preparations for raising locusts: A breeding shed should be built for raising locusts. The location should be a well-ventilated and sunny place, such as the front and back of the house, an idle courtyard, or a plot of land. The ground of the breeding shed should be 10 cm to 15 cm higher than the surrounding ground to facilitate drainage in the rainy season. The shed can be built with bamboo strips, bamboo poles, wooden sticks, etc. as supports, and then a shed cover like a greenhouse can be made with gauze, the bottom edge of which is buried in the ground, leaving a doorway, and a zipper is installed on the doorway or it is glued with adhesive strips. The height of the shed is 1.5 meters to 2 meters, and it must be built by the end of April. The area of ​​the shed depends on the number of locusts. Generally, 600 to 800 adults can be raised per square meter. At the beginning, 15 square meters are enough to raise 10,000 locusts. Each female locust can lay 50 to 80 eggs. As the number of locusts increases, the shed will continue to be expanded. After the breeding shed is built, dense wheat is planted on the ground inside the shed to prepare for the young locusts to eat. Locust management: First prepare non-toxic soil, mix new sawdust and soil in a ratio of 2:1, with a moisture content of 20% to 30%, spread 3 cm to 5 cm thick on the utensils or wooden boards, and cover the eggs with about 1 cm thick soil. After 10 to 15 days of incubation, all locusts can be hatched around May Day. After the young locusts are hatched, they shed their skin once every 7 days. Each shed is one age. After 5 sheds, they become adults. After another 50 days, the adults can be sold (500 to 700 locusts per kilogram) or kept for seed laying. During the 1st to 3rd instar, the larvae eat very little. After 35 days of becoming adults, the food intake doubles. In addition to collecting some wild weeds for feeding, they can also cut artificially planted Mexican corn grass for feeding. However, migratory locusts are the most harmful, especially the East Asian migratory locust, so they are usually talked about. Although locusts are small in size, they are powerful in numbers. The largest locust swarm can reach 250 billion. When flying, the sound can shake the ground for several miles, and the green leaves are gone wherever they pass. Locusts have a very diverse diet. Almost all green vegetation can be used as their food. They eat not only to obtain nutrition, but more importantly, to obtain water. Greedy feeding and long-distance migration are the housekeeping skills that locusts rely on for survival. When crops and other plants are scarce, they can even eat the wool on the backs of sheep, the grass on the roofs of houses, and the wooden handles of farm tools that smell of sweat or oil. When there is nothing to eat, they kill each other and eat their own kind. The shell of locusts is extremely hard, and they are still safe and sound even if they hit a speeding car. After a full meal, locusts can digest all their food in just 30 minutes, and when food is scarce, they can go on for 6 days without food or water. Locusts can be used: Although locusts are harmful, they are not completely useless. For example, they are one of the main resources of edible insects. According to some data, locusts have a high crude protein content, rich amino acids and a variety of biologically active substances necessary for the human body, such as ATP and coenzyme Q. There has long been a custom among the people to treat locusts as delicious dishes, frying or grilling them, which has a unique flavor. In Thailand, the name of "fried flying shrimp" (fried locusts) is well known. The romantic French have also produced high-protein foods from locusts. Locusts also have high health and medicinal value. Locusts caught in summer and autumn are scalded to death and dried for medicine. They have the effects of relieving cough and asthma, calming convulsions, clearing away heat and detoxifying, and can be used to treat bronchial asthma, whooping cough and other diseases.

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