Marking Out Pathways (Field Art) - Part 1

So, time is marching on and I am hoping to start planting next month sometime - if the temperature drops sufficiently. I have had confirmation that the horses will be leaving us in November (around bonfire night I think) which gives me very few reasons not to crack on. The problem is, the plan is still a bit vague - and I need to firm it up now. The Woodland Trust gave me the green light after their visit . They didn't see any major problems with my design (although it was all a bit rough and ready to be honest). Before we can plant, we need to know where to plant, and the location of the planting will really be "everywhere there isn't a path or clearing". So the paths are really the first things to mark out. After a lengthy discussion about Glyphosate with my good friend and adviser Owen (as a chemical it appears it isn't anywhere near as bad as I had imagined) , it was decided that the way to mark the paths out was using chemicals rather than to try and stri...