My first post here!
I have a client who wants the weeds removed from these rocks...
My solution is to rake aside as much as possible to expose the weeds better, hit the area with a stirrup hoe and/or dutch hoe, rake it again, and repeat. A spraying of roundup then a topping of a few yards of fresh rock.
My client somehow was under the impression I was going to bring in a skid steer and scrape away everything and remove the entire top layer of soil (I never said that!). To me this doesn't make sense to go to that extreme! (The cost would be HUGE, I'd have to replace ALL THE ROCK and take the same amount of time, only to have weeds return if they never maintain it.)
I'd do this in 1.5-2 days easy with a hoe and rake.
Aside from the stirrup style hoe and a good hard rake do you think there is a better way of weed removal that I am just not seeing here?