Are grasshoppers beneficial, and what is the main role of grasshoppers?

Grasshoppers are meant to suck blood, nothing else.

The main function of the grasshopper is that it can be used as a valuable Chinese medicinal material after processing.

Grasshoppers mostly live in freshwater, a few in saltwater, and some are terrestrial and amphibious. There are species that live by sucking blood or body fluids, and there are also carnivorous species that prey on small animals. The common grasshopper in the rice fields is called the Japanese medicine leech, which feeds on the blood of humans, animals, and frogs.

There are some mountain locusts living in the mountains and forests of Hainan Island and Taiwan, often lurking in the grass and trees.

In recent years, due to the threat of chemical fertilizers and pesticides to its living environment, human beings in Braga have carried out predatory yard slip fishing, and the wild resources of grasshoppers have been decreasing day by day. In order to meet the market demand, the artificial breeding industry of grasshoppers is developing rapidly.

The medicinal value of the grasshopper is quite high, because it contains high protein and other components, which have a good effect on blood circulation and blood stasis, dysmenorrhea, etc.

Leech, commonly known as leech, grows and breeds in inland freshwater waters, is a traditional Chinese special medicinal aquatic animal, and its dried products are processed into traditional Chinese medicine, which has the effects of stroke, hypertension, stasis, amenorrhea, bruises, etc. In recent years, it has been newly discovered that leech preparations have special effects in the prevention and treatment of cardiovascular and cerebrovascular diseases and anti-cancer.

Fresh leech saliva contains an anticoagulant substance named hirudin, which is a polypeptide and has anticoagulant effect due to the absence of tryptophan and arginine in its molecular composition. But in dried herbs, hirudin has been destroyed. Leech saliva also secretes histamine-like substances, heparin and antithromboxane, etc., which have a synergistic effect with hirudin.

The leech – also known as the "leech" – is a blood-sucking creature with a relatively large, slightly spindle-shaped body, and a flattened and fat dorsal belly.

There are three types of leeches: the dry locust, the water locust and the parasitic locust.

What to do when encountering leeches? - If you go to work in the fields and fish in the pond, you only see bleeding but no pain, you don't have to be afraid when you see this scene. First of all, don't pull it off with your hands, as it will suck more firmly.

You can pat your arm near where the thigh was bitten so that it can be shaken off. You can also apply soapy water, wine, vinegar, etc. to the body of the locust.

The utilization value of the grasshopper - it is included in traditional Chinese medicine, it can inhibit the activity of thrombin, can prevent fibrinogen from forming fibrin, thereby inhibiting the formation of thrombosis. Moreover, it has the effects of stroke, high blood pressure, stasis, amenorrhea, bruises, etc.

Prospect of artificial breeding - now China has a certain understanding of the living habits of grasshoppers, and there is a relatively complete feeding program, if you want to raise it or can be successfully artificially cultivated, its net income is still very considerable.

What do you think? You know something about locusts, if you accidentally encounter them in the future, deal with them calmly!

The locust specializes in sucking blood, and he also likes to drink the blood of frogmen.

Leech is a common name for leeches.

There are 400-500 species of locusts in the world, about 100 species in China, and 89 species have been discovered. Leech is a cold-blooded annelid, which can grow and reproduce in both north and south of China, and it mainly lives in reservoirs, ditches, paddy fields, lakes and marshes in fresh water, and is most abundant in ponds with rich organic matter or non-polluted small rivers.

Leeches, also known as medical leeches, commonly known as water leeches, are distributed all over the world, with more than 300 species, and more than 100 species in China. All the animals dried by the wide-body golden leech, the brown leech and the Japanese medical leech are recognized as traditional Chinese medicine medicinal materials by the "Pharmacopoeia of the People's Republic of China".

The head of the leech has a sucker, and has an anesthetic effect, once attached to the human body, it is difficult for people to feel, when the leech bites a person or an animal, it sucks ** with a sucker, and drills into the flesh to suck blood, and the amount of blood sucking is very large, which is 2-10 times its body weight. Leeches are hermaphrodites, can tolerate hunger, and will not die even if they do not eat for a year or two.

The main species of leeches are:

Dry leech: It mainly grows in the shady and low depression of the forest and grassland.

Water leech: Mainly grows in swamps and ponds, its body is long and flattened, with a black-green color.

Parasitic leeches: mainly grow in mountain stream spring water, its larvae are white, difficult to find with the naked eye, people drink these spring water, easy to parasitize in the human body.

A locust is a leech. The main characteristics of leeches are flat spindle-shaped, with many links; The back is dark brown or dark brown. The body of the grasshopper is slightly flattened, and at first glance it looks cylindrical, with a body length of about 2 15 cm and a width of about 2 mm.

The back of the locust is green with black in the middle, there are 5 yellow longitudinal lines, the ventral surface is flat, gray-green, no variegated spots, the overall annular pattern is significant, and the body segment is composed of 5 rings, and the width of each ring is similar.

The back of the locust is dark green, with 5 longitudinal stripes, and it sucks blood and stores it in the entire digestive tract and blind sac from the pharynx through the esophagus. Grasshoppers have excretory holes in each segment of their body, which open ventrally. The male and female reproductive orifices of grasshoppers are 4 rings apart, and the limb source is guessed to be between the rings.

The front sucker of the locust is easier to see than the previous type, and the rear sucker is more significant and the adsorption force is also strong.

Grasshoppers are produced in lakes, ponds and paddy fields in most parts of China. Grasshoppers are mainly produced in Shandong Weishan, Dongping, Nanyang Lake and other lakes, with the largest output of Weishan Lake, in addition to the province, and sold in the Northeast, Hebei, Shanxi.

The main active components of grasshoppers are macromolecular compounds, such as hirudin, heparin, histamine, kissyphin and amino acids. Hirudin is the strongest thrombin-specific inhibitor identified to date.