The following technological procedures are used commercially as supplements to temperature and relative humidity management: Treatments applied to commodities include curing of certain root, bulb, and tuber vegetables; cleaning followed by removal of excess surface moisture; sorting to eliminate defects; waxing and other surface coatings, including film wrapping; heat treatments (hot water or air, vapor heat); treatment with special chemical treatments (sprout inhibitors, scald inhibitors, calcium, growth regulators, ethylene-action inhibitors, such as 1methylcyclopropene, postharvest fungicides); fumigation or irradiation for insect control; and ethylene treatment (de-greening citrus, ripening climacteric fruits).