I admire his dedication and inventiveness. Take a look at his brilliant art made of weed pulp paper and essence of weed ink, plus a ferocious amount of creative energy.
In my own quest to help native plants, I usually pull Lonicera japonica out of the trees or bushes it is choking and weave the vines into baskets.
Urban Jungle column in Washington Post
Invasive Plant Species in the Mid-Atlantic – National Park Service