As I'm comparing my actual plantings (in the field) to a recent printout of my Illustrator design, I've found some errors. sections (subdivided into 50' sections) for mapping and tree placement, though it is a bit haphazard and could use more refinement. My friend Trevor uses Illustrator and also Vectorworks (I have not used the latter) for his ecological design business.
I've mainly used Adobe Illustrator ($$$) for my own mapping, along with a bit of Adobe Photoshop (also $$$) to work with satellite photos, since I already had both of those for my everyday job as a graphic designer.