260034
To control the stored grain pests the better and safe method is
1 The use of chemical pesticides in small amounts
2 The use of less toxic pesticides
3 The biological control of pests
4 Fumigation
Explanation:
To control the stored grain pests the better and safe method is "The biological control of pests". The ultimate goal of biological control is to suppress pest population and damage without pesticide or with reduced pesticide.