re:Maybe a scheme such as is used to clear land for soybeans, of get rid of mesquite in Texas. A big thing like a huge tractor drawn flatiron cuts all bushes at goung level.

that will not work for ailanthus, since one of the characteristics of the tree are large, graceful branches...

the tree has a very lightweigh upperstucture, with fern like fronds, and it puts most of its energy into the root system..

cut off the top? no problem, it grows a new one.. kill the root? almost impossible! these strong roots are the ones that 'break' the concrete, as they work there way down.
they also break sewer pipes, and water pipes too..

mow them down, and you get several new shoots growing from root system, like a hydra, cut off its head and it grows 2 new ones!


my other obsession