Have you ever raised cicadas? Tell me what you know about silkworm hatching. How to observe and record the changes in the life of silkworms.

The development temperature of silkworms is 7-40℃. Before hatching, some water should be sprinkled to keep the silkworms moist and warm, but not too much water, just moist.

1. Prepare a small box as a silkworm chamber and disinfect it. In the disinfected silkworm chamber, lay the silkworm babies flat in the silkworm plaque with the egg side facing up.

2. When a small number of silkworm eggs are found to have blue-black dots in the later stages of development, immediately cover the silkworms with black cloth from light. After about 40 hours, remove the black cloth and remove the silkworm eggs. Wrap the silkworm baby in white paper, with the egg side facing up, and turn on the light to allow the silkworm to bite through the egg shell and hatch out.

3. Then there are the temperature requirements: the room temperature is required to be 24 degrees Celsius on days 1-4, and the dry-humidity difference is between 2-2.5 degrees Celsius. On the 5th to 10th day, the room temperature is required to be 27 degrees Celsius, and the dry-humidity difference is between 1.5 and 2 degrees Celsius.