Herbicide use around monuments

[Tallgrass]

Hi all,

 

I'm currently speccing a job which involves the removal of trees growing out of historic monuments.  We need to ensure no regrowth from cut stumps. I'm currently thinking that careful spot treatment with glyphosate, or the use of ecoplugs (very gently tapped in) will suffice, but does anyone have any experience of this area, or know who can advise on what herbicide might cause least damage to delicate stonework?

 

Here's a pic of one of the monuments although it's hard to see the small self-sets. I don't know what type of stone we're working with but will try and find out.

 

Also we're doing  over winter before nesting so treating with glyphosate might not be so effective, and repeated treatment in a few months once the stumps are drying probably useless.

 

Any pointers much appreciated.

 

Thanks

Edited December 8, 2017 by Tallgrass

[Khriss]

Has gotta be in the plant growing season so the stuff translocates properly to kill the roots - with that one I think I would go over it with the flail mower n go back in Spring n spot- treeat the stubs ( secateur them  to lay fresh tissue bare ) K