1, reed sieving method: after removing the insects on the surface of rice, screen them with a sieve, and finally dry the rice in the shade to remove all kinds of insects.

2. Sunbathing method: On a sunny day, put rice on a bamboo mat, and then put the bamboo mat in the sun to dry.

3. Drug method: Mi Chong can be killed by using the characteristic that aluminum phosphide reacts with air to generate phosphine.