Could be that it needs more time, but I doubt it. The one I cut down last night had five trunks two to six inches in diameter. The one in the abandoned church parking lot behind my house has at least three and the one trunck is at least eight.
I MIGHT be wrong here as it was dark out when I was doing this last night, but I think someone cut down the actual original tree itself. There's a very large stump on the corner of my garden I have my herb pot set up on. The stump seems to have new growth starting from the edges of it. If it is the original tree stumpI am THRILLED!! Elviss' dad told me it's easier to kill an invasine tree or vine if you can find the originating plant.

Death to the mulberry!
Well........maybe......it certainly looked last night like the mulberry is the dominating foliage all along the fence line of the church lot.
I'm going to talkto them sometime this week and see if they'll let me clean up the fence adjacent to my yard.
I'm hoping with a little diplomacy and the fact they won't have to spend any money that they'll like my idea. I think mulch a nice clematis or something would look MUCH nicer than overgrown weeds an a huge mess. If they don't they're in for it because the city has rules against weeds higher than two feet within the city limits. They'3e weeds are more then the fence itself in some spots! I'm going to start a new thread on this later with pictures.
You must be the change you wish to see in the world.
-Gandhi