Sir Alex lashed out at the Blues over the club's decision to put up a billboard poster of Carlos Tevez and the words "Welcome to Manchester" following his decision to quit Old Trafford and move to Eastlands.
Speaking in South Korea, Ferguson was asked about the poster, clearly aimed to wind up United fans by playing on the fact that Eastlands lies within the boundaries of the city of Manchester while Old Trafford is just over the border with Trafford.
?It's City isn't it?? said Ferguson. ?They are a small club with a small mentality.
?All they can talk about is Manchester United; they can't get away from it. They think taking Carlos Tevez away from Manchester United is a triumph. It is poor stuff.?
Ferguson also said striker Emmanuel Adebayor wanted to see if United or Chelsea would sign him before he completed a £25m transfer to City.
He added: "When someone offers you that kind of money, it is a big attraction.
?That is the reason they have gone there. At the last minute, from what I can gather, either Emmanuel Adebayor or his agent phoned us after they had agreed a deal with City and then did the same with Chelsea. He was desperate to get to either Chelsea or us.?