CATDOLL : CATDOLL: How to raise grasshoppers_How to raise grasshoppers

Raising grasshoppers is a very popular agricultural breeding method nowadays! As for how to raise grasshoppers in daily life? Let's learn about the methods of raising grasshoppers with me below. I hope it will be helpful to you!

How to raise grasshoppers

Selection and identification of seed sources

Methods for determining grasshopper species include:

⑴Consult a grasshopper classification expert.

⑵ Consult the grasshopper index table or atlas.

⑶Consult experienced grasshopper farmers.

⑷Send the locust species to the customer for identification and examination.

Common grasshopper species include: East Asian migratory locust, cotton locust, Chinese rice locust, Chinese grasshopper, etc. These species have their own advantages and disadvantages. It is necessary to comprehensively consider factors such as their growth cycle, generation, taste, food, size, and the species required by customers, and select the breeding species in combination with local climate, food source, etc.

Breeding shed

Before building the shed, first eliminate all ants and mole crickets on the ground. You can use methods such as capture, trapping, and scalding. The above insects are natural enemies of grasshoppers and can prey on grasshoppers and destroy locust eggs, so these animals must not be allowed to exist in the shed. In order to facilitate drainage in the rainy season, the floor of the shed should be 10-15 cm above the ground. The soil should preferably be sandy loam, which is not easy to clump and is convenient for laying eggs. In mid-April, you can plant crops such as wheat on the ground where the shed is built to prepare for the young locusts to eat.

The construction area of ​​the shed is determined by the number of grasshoppers to be raised. If you want to raise 10,000 grasshoppers, 15 square meters is enough. You can use the free space inside and outside the yard to build a shed frame with wire, sticks, bamboo strips, etc. according to your own conditions. Then, according to the size of the shed, use ribbed cloth (gauze cloth) to make a shed cover like a mosquito net, hang it on the shed, bury the bottom edge in the ground, leave a door, and install a zipper on the door. This device is to prevent the grasshoppers from running out and facilitate feeding and management. (It can also be built into an arched shed)

The height of the shed can be 1.5-2 meters. In order to keep warm and prevent rain, you can cover the outside of the shed with plastic sheeting. When the temperature is high and the grasshoppers are large (older) and not afraid of rain, you don't need to cover them with plastic sheeting. If you use natural conditions to breed migratory locusts, the construction of the shed must be completed before the end of April, and it is best to choose a place with plenty of sunshine.

Management of nymph stage

⑴ Grasshoppers eat very little and like to feed on fresh and tender plants. Grasshoppers are very fragile at this stage, so you should pay attention to rain protection to prevent them from drowning.

⑵The temperature should be controlled at 25-30℃, the light should be more than 12 hours, and the humidity should be maintained at around 15%. Under these conditions, grasshoppers are most active, like to eat, and are conducive to their growth.

⑶ The food intake of locust larvae above the third instar gradually increases. At this time, it is necessary to ensure that there is sufficient food in the shed, otherwise it will affect their normal growth and may even cause cannibalism.

⑷ Keep the shed clean and clean it once every 1-2 days to prevent the occurrence of diseases.

Grasshoppers are harmful insects

It is different from other special breeding industries. On the one hand, breeding it can turn harm into treasure and increase farmers' income, but on the other hand, it increases the number of grasshoppers, forming a potential hazard. Necessary safety management measures must be taken for its breeding to achieve twice the result with half the effort. For large-scale breeding, based on 1 mu of breeding, a half-meter wide plant contamination isolation zone should be built around the breeding site, and the surrounding area should be fenced with wire mesh and equipped with pesticide sprayers. There are many kinds of pesticides to kill grasshoppers. You can use 75% malathion emulsifiable concentrate or 2.5% diazinon and other pyrethroid insecticides to kill them.

If farmers do not want to breed grasshoppers anymore, they must take the final extermination measures. If farmers do not want to breed grasshoppers anymore, they should make preparations in advance. They cannot remove the breeding shed before May 20th of each spring. After all the grasshoppers have emerged from the ground and before they become adults, they should be killed with pesticides. This way, there will be no harm. If farmers decide not to breed grasshoppers before the end of autumn, they must sell all of them before September 10th, that is, before the grasshoppers mate, or kill them with pesticides. They must not be allowed to lay eggs in the breeding shed. Such measures can ensure the eradication of potential harm in the future and benefit the healthy development of the grasshopper breeding industry.

The value of grasshopper research

Biological characteristics and value of grasshoppers: Grasshoppers are both medicinal and edible insects, oviparous, belonging to the order Orthoptera, family Acrididae, class Insecta. According to statistics, there are 859 species of grasshoppers in the family Acrididae, and there are two main species that can be used as medicine and food, namely the East Asian migratory locust and the Chinese rice locust. These two grasshoppers are rich in nutrition, with soft, tender meat and delicious like shrimp. According to books such as "Research on Migratory Locusts" and "Feed Value of Migratory Locusts", grasshoppers are rich in protein, carbohydrates, insect hormones and other active substances, and contain vitamins A, B, C and trace elements such as phosphorus, calcium, iron, zinc, and manganese. Grasshoppers are not only delicious food, but also a good medicine for treating diseases, with the effects of warming the stomach and ribs, strengthening the spleen and digestion, and dispelling wind and relieving cough. "Compendium of Materia Medica" records that grasshoppers can be used alone or in combination to treat a variety of diseases, such as tetanus, infantile convulsions, fever, asthma, sha swell, cormorant plague, frostbite, tracheitis and prevention of cardiovascular and cerebrovascular diseases. You can boil ten of them into a decoction, or fry them and grind them into powder and drink, five per time. For frostbite, fry them and grind them into powder and mix with sesame oil and apply to the affected area.

With the development of society and the continuous improvement of the quality of life, the human table has changed from traditional types such as chicken, duck, fish and meat to green game types. Grasshoppers are rich in nutrition, tender in meat, and delicious like shrimps. In Hong Kong and other places, they are known as "flying shrimps" and are a favorite delicacy for people from all over the world. In the United States, "insect banquets" are held to entertain guests, among which grasshoppers are included. According to reports, some patients with obesity, hypertension, cardiovascular and cerebrovascular diseases tend to eat insects in order to achieve the purpose of losing weight and curing diseases. Subsequently, some countries and regions have correspondingly developed insect foods. Insects are used to cook dishes, or made into canned food, biscuits, ice cream and other foods, which are very popular.

Dietary value

The body of the Chinese rice locust, migratory locust and other insects of the family Acrididae. Also known as grasshoppers. Distributed in North China, East China, Central and South China, Sichuan, Shaanxi, Gansu, Taiwan and other regions. After obtaining, remove the wings and legs, wash, and scald to death with boiling water before eating. Contains high protein. It is the most ideal food.

[Properties] Sweet, spicy, warm in nature. It can invigorate the spleen and digestion, calm wind and stop spasms, relieve cough and asthma, and dredge meridians.

[Reference] Contains rich protein and fat, calcium, phosphorus, iron, copper, manganese, vitamins A and B, etc.

[Use] Used for spleen deficiency, poor appetite or malnutrition; acute and chronic convulsions, convulsions and spasms; whooping cough, bronchial asthma, wheezing, coughing and shortness of breath.

[Usage] Decoction, stir-fry, or grind into powder.

[Additional prescription]

1. Stir-fried locusts with fennel: 30g locusts and 6g fennel. Stir-fry together in cooking oil, add a little salt when cooked and stir-fry evenly.

This recipe uses grasshoppers to strengthen the spleen and digestion, and fennel to regulate qi and strengthen the stomach. It is used for spleen deficiency and qi stagnation, abdominal distension and pain, and decreased appetite.

2. Grasshopper powder: roast and dry grasshoppers, grind into powder. Take 3g each time, 3 times a day.

The book Jiushengkuhai uses wine to take this medicine to treat tetanus, and the book Bencao Gangmu Shiyi uses sugar to take this medicine to treat infantile convulsions. Both use this medicine to stop spasms and calm internal wind. However, they are all symptomatic treatments (relieving symptoms) and should be used in combination with drugs that treat the root cause.

3. Grasshopper and Uncaria rhynchophylla soup: 10 grasshoppers, 15g Uncaria rhynchophylla, 10g mint leaves. Add water and decoct.

Originated from "Bai Cao Jing". This recipe uses grasshopper and Uncaria rhynchophylla to calm wind and stop spasms, and mint leaves to dispel wind and heat. It is used for convulsions, fever, convulsions and spasms.

4. Grasshopper soup: 30 grasshoppers, boil in water and take in 3 doses.

Originated from "Supplement to Compendium of Materia Medica". This recipe uses grasshoppers to relieve cough, reduce adverse reactions and relieve asthma. It is used for whooping cough, coughing and shortness of breath. It can also be used for bronchial asthma, etc.

5. Roasted grasshoppers: In ethnic minority areas, grasshoppers can be roasted. They are crispy and rich in nutritional value.

Health value

Domestic and foreign studies have shown that locusts (Haplotropis brunneriana saussure) and migratory locusts (Locusta migratoria) contain juvenile hormone, brain hormone, molting hormone, diuretic hormone (DH) and antidiuretic hormone (ADH), as well as antifreeze protein and storage protein, etc. Among them, juvenile hormone, brain hormone, molting hormone can regulate the growth and development and metabolism of the body from many aspects and delay the aging of the body.

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