(AGI) Milan, Sept 26 - The International Monetary Fund shouldinsist on ECB stress tests for German mortgage lenders ratherthan call for Italy's charitable banking foundations to lowertheir stakes in private banks, Fondazione Cariplo PresidentGiuseppe Guzzetti said on Friday. "We don't need the IMFtelling us what to do because we're already doing it," he said."It would be best if it concentrated on those German banks thatare outside ECB scrutiny," he added. (AGI) . .