With Black-eyed Susans in the background (under the oak tree) and catnip in front, Catherine and Michelle (who takes care of a node along the Bill Holland Trail) are fastening down a tarpaulin over a thick mass of DSV and Comfrey. Both of these plants are highly invasive and prevent other plants and the native species that we prefer from growing. Digging them out is difficult as both have very robust roots; in cases like this where only invasives are growing, it's easiest to shade them out. (SG)