How to control pests in wheat in ancient times

1, the lower the temperature, the better. The storage of Hanjiacang in Sui Dynasty was underground. When the temperature is lower than 18 degrees, it is difficult for pests to reproduce.

2, high temperature exposure heat into the warehouse, through the drying temperature reached more than 60 degrees, can be hot into the warehouse, through breathing hypoxia, kill pests.

3, plant ash sealing, through sealing to achieve the oxygen concentration that pests can't survive, plant ash can also stop the spread of pests.

4, frozen insecticidal, dried and frozen in winter, can kill insects.