There is something like a spider's web in Xiaomi.

Reason 1. The environment provided by rice is suitable for the development of eggs.

But the grain is still in the field, with Mi Chong's eggs. Because the water activity value in rice is very low (that is, the water content is very small), and the growth and development of eggs need the existence of water. When the temperature reaches 20℃-40℃ and the humidity reaches 65℃-95℃, it only takes one week for the eggs to hatch.

Reason 2: The eggs in the storage space have not been completely removed.

Some eggs are hidden in the bottom of the rice jar, in the cracks in the rice bag, in the cracks in the wall and in the cracks on the ground, and it is difficult to take them out one by one. When there is rice at home and the climate is suitable, these eggs hatch, climb into rice bags and start to cultivate the next generation.