The growth process of silkworm:

The first stage is the egg. Silkworm eggs are black, the size of a sesame seed, with a smooth surface. Before hatching, the color of the egg will gradually fade. In about ten days, the eggs will hatch out into larvae, or silkworms.

The second stage is the larva. The larva is the first growth stage of the silkworm and its main feeding stage. Larvae need a lot of mulberry leaves to provide nutrients for growth and molting. The body of the larva is yellowish with a smooth surface and is about two centimeters long.

The third stage is the pupa. The pupa is the second growth stage of the silkworm and its stage of change. In the pupa stage, the body of the silkworm gradually hardens, darkens in color, shortens its body, and eventually turns into a chrysalis. The shell of the chrysalis is hard and helps protect its body. It takes about ten days for the pupa to turn into an adult.

The fourth stage is the adult. The adult is the last growth stage of the silkworm and its reproductive stage. The adult has a gray body with many tiny scales on its wings and a pair of antennae and two pairs of wings on its head. The adult needs to find a suitable place to lay its eggs in order to reproduce.

The fifth stage is egg laying. Egg laying is one of the most important tasks of the adult moth. Female silk moths will release a special odor to attract male silk moths, and then mate with them to lay eggs. The eggs will hatch again to produce larvae and begin a new life cycle.

Characteristics and life traits of silkworms

1. Characteristics: Silkworm eggs are very small, like sesame seed grains, with a width of only 1 millimeter. When the silkworm eggs are just born, the color is light yellow or yellow, after one or two days, the color will become russet, in after three or four days, the color will become purple or gray-green again.

2, the silkworm just hatching out of the eggs, very small, and there are a lot of hair, the body color is black or brown, from the appearance of the special like ants. The pupa is shaped like a spindle and is divided into three stages: head, thorax and abdomen. The moth looks very much like a butterfly, with white scaly hairs all over its body.

3, life characteristics of the silkworm is a kind of metamorphosis development of insects, also known as the mulberry silkworm. The temperature for silkworms to grow and develop is 7 degrees Celsius to 40 degrees Celsius, and the temperature for feeding is 20 degrees Celsius to 30 degrees Celsius. After birth, the baby silkworm will eat mulberry leaves and grow up, because it has been eating mulberry leaves, its body color will become white, and then after a period of time, it will shed its skin.