Freshwater swimming crab, commonly known as constant crab, looks like a crab and is small in size, about 2 or 3 centimeters wide, so the country people call it little crab. They mainly eat microorganisms and shells in river water, but they also absorb the juice of rice stems and leaves, so the farmers who grow rice are not like this. But not for others. Crabs are harmless to them. They are delicious, fried, sauced, steamed and eaten, and naturally become "fragrant biscuits". Every winter, when hibernating or hibernating in early spring, at this time, at this time, the meat is good, has no smell of soil, and tastes delicious. Especially when eaten raw and chewed to the skin, it is fragrant and crisp.

Winter is a good season for crabs to eat, and summer is a good season for crabs to catch. At this time, crabs often go out for activities because of the heat of summer rainstorm. At night, the places where crabs often haunt are illuminated by flashlights, which are easy to be illuminated by lights and can be caught well without moving. Catching crabs as a child was also a very interesting activity. In fact, there are crabs in the countryside. It is like a "small" crab with a head two fingers wide. There used to be many paddy fields in the countryside, and farmers often caught them to feed chickens. Some people can catch 100 A Jin Night. But now it has become a hot potato. I bought a catty of 60 yuan in the market.

In rural rice fields, pesticides were not used in the past, so there were many pests, which would harm crops and reduce rice production, so farmers also hated these pests. A pest that looks like a crab has brought headaches to farmers, that is, crabs. This is a small animal distributed in the north and south of China, whose scientific name is Heng crab crab. But it is a little shorter, mainly near the domestic water sources such as paddy fields, rivers and beaches, especially where there are many humus. Mainly because of eating humus.

Farmers think it is a pest because this small animal is small. But the pliers are very big, with two big feet, especially the male ones. This creature will use its big pliers to clamp off the stems and leaves of rice and absorb water from it. Moreover, their fertility is very strong. If it is not controlled, the fields will become face to face, and natural grains will be reduced. At the same time, this animal can also dig wells, resulting in serious loss of water and fertilizer in rice fields and activities in groups, which brings great losses to farmers.