weeds on steep bank going down to lake

Question

We have a steep bank that the DNR (Dept. Natural Resources) told us to plant daylilies on. We planted them 20 years ago, and now the area is being over taken with vines, sumac,a nd other unwanted plants. Is there a spray we can use that will not harm the daylilies?

Answer 1

Unfortunately, most herbicides -- even organic ones -- aren't the least bit prejudiced, and will kill everything they come into contact with. You can, however, selectively spray herbicide formulas onto the roots and/or plants that you DO want to kill. Clearing as much of the vines and larger, easy-to-uproot varieties by hand will make it even easier. This article may help you:

https://www.gardeningknowhow.com/plant-problems/weeds/using-organic-herbicides.htm