u/Frostedflae

We recently bought a property with a MASSIVE dsv invasion that borders the whole property, about half an acre with thousand of dsv plants. My plan is to lay tarp on the edges of the property to about 4’ from the fencing as I don’t see much outside that depth and can probably manually manage the few that are. My question is what do I do after I leave the tarp on for a couple months, do I dig up the roots or leave it?