In a planned effort to adjust for an oversupply of certain non-recall replacement tires, Bridgestone/Firestone, Inc. will curtail tire production at its LaVergne, Tenn. and Oklahoma City, Okla. plants for 28 days between now and year-end, the company announced today. At the same time, the company will layoff approximately 450 people at its Decatur, Ill. facility for an indefinite period, effective Oct. 29th. The plant will also curtail production for 14 days in December.