Conclusion Iodine in iodine-phenol solution evaporates easily at high temperature and in non-airtight storage. It must be stored in airtight package and at low temperature.

Spray gun, paper tape, putty, sewing and work clothes and other items should not be stored in the open environment, these items should be placed in the storage chamber and the airtight ventilation.

The practice proved ventilation, airtight and heat insulation had positive influences on wheat safe storage for longtime in silo.