Essentially we meet bamboo force with our force!!
Every 12 -18 months we check around all our bamboos by probing with a garden fork or one of these tools. We track down and remove any rhizome runner and we use the tools to remove sections of bamboo clumps when necessary in order to keep the clumps to a visually pleasing size.
With the right tools it is relatively easy to divide (split up) bamboos if they are getting too large or deal with if the occasional 'runner' that needs to be removed. The horticultural term 'Division' refers to a newly dug section of rhizome that contains one or more culms. At 'Four Seasons' most of the divisions we make will have have at least four culms.
We found the key tool was the tall one in the middle - this tool is very heavy and is really designed for breaking through hard ground, including concrete, in order to make a narrow, deep enough hole such as for a fence post .........essentially it is like a long heavy iron crowbar with a chisel cutting edge at the lower end. This one weighs 7.5kg (17lbs)
The other tools are a tree spade / drain spade and a small saw; however, as we have said, most of the work is done by the heavy tool in the middle of the picture (the Post Hole Digger Bar)