By Herbert Lash NEW YORK (Reuters) -Long-dated U.S. Treasury yields surged and global stock markets slid further on Friday as investors worried the Federal Reserve may not be able to curb inflation in the years ahead despite U.S. labor data showed decelerating wage growth in April. Labor Department data on Friday showed the unemployment rate fell to its pre-pandemic low of 3.5% last month as job growth moderated and average hourly earnings eased to 5.5% from a year earlier. But the data underscored the challenges the Fed and other central banks face as they battle rising inflation with China’s…