The growth period of cicadas. 5. The growth period of cicadas.

The larvae of cicadas live in the soil, sucking the sap of plant roots, weakening the tree, causing the branches to die, and affecting the growth of the tree. The larvae of grasshoppers live in the soil all their lives. When it is about to be feathered, it burrows out of the surface at dusk and at night, climbs on a tree, and then grabs the bark of the tree to molt and feather.

At the end of June, the larvae begin to emerge into adults, with a maximum lifespan of about 60 to 70 days. In late July, the female adults begin to lay eggs, and the peak oviposition is in early and mid-August, and the eggs are mostly laid on branches with a thickness of 4 to 5 mm. When the adult female lays eggs, the ovipositor is punctured through the bark and inserted into the branch tissue, creating a claw-like orifice, and then laying eggs in the xylem.

Each spawning hole has 6 8 eggs. There are more than 90 cicada eggs on a branch. In areas where this insect is severe, it is common to see dead branches full of tree trunks by late autumn.

The eggs are laid and hatched in mid-June of the following year. After hatching, the larvae fall from the branches to the ground and burrow into the soil. The larvae live in the soil for several years and molt a total of 5 times.

When spring is warm, the larvae move upwards to suck the sap of plant roots, and when autumn turns to winter, they go deep into the soil to avoid the cold. The body of the young larvae is mostly white or yellow, very soft, and the forehead is significantly enlarged. The body of the old larvae is hard, yellowish-brown, the wing buds are very developed, and there is a molting line from the top of the head to the back of the thorax **, which is the dehiscence line when the adult is born.

Cicada flower origin. Cicadas are mainly distributed in Sichuan, Jiangsu, Zhejiang, Fujian and other regions of China, with relatively high yields, but there are also a small number of cicadas in Anhui and eastern Yunnan. In general, cicada flowers are divided into three grades based on their quality.

Ordinary quality ** is about 500 yuan a catty, medium quality is about 500-1000, and wild is generally more than 1000.

Where cicada flowers grow.

Cicadas generally grow in hilly areas with bamboo forests, and the terrain is relatively gentle. When growing, it is best to loosen the soil and maintain a certain humidity, which is more conducive to its growth and development. In some areas where there are bamboo cicadas, they are generally planted.

Cicada growth characteristicsCicadas prefer a warm and moist growing environment and need plenty of sunlight when maintaining. Relatively shade-tolerant, but not cold-tolerant. It is necessary to keep the temperature between 20-25 degrees during growth and 20 degrees during flowering, which is more conducive to flowering.

The environment in which cicadas grow.

The formation of cicada flowers is very unique and early defeat. It is a sick surface of the golden cicada larvae, a special group of insects and bacteria that are interdependent. It burrows into the soil every autumn and slowly turns into a pupa after opening its eyes.

However, it is parasitized by Cordyceps before emergence, and when the external environment reaches certain conditions, mycelium will be formed.