In which month do grasshoppers produce noodles?

Leeches appear in March. Leeches will come out when the temperature is higher than 10℃, and they will appear in March after the spring solar term, and 10 will not hibernate. Leech generally refers to leech. Historically, it was mainly natural fishing. Due to the abuse of pesticides and fertilizers and the environmental pollution caused by industrial and agricultural "three wastes" in recent years, wild natural resources have been sharply reduced. With the further development of medicinal value of leech, its market demand potential is huge.