Problem wisteria which I have cut to virtual ground level. Choking up my sewer pipes and storm water. Have some blackberry/lantana poison which I have been told to spray on the 'flesh' of the remainder of the trunk. Would it be more prudent to get a stump grinder in and grind as deep as possible in preference to poisoning for months after grinding? Would the roots still survive under concrete (driveway) and cause further problems?
Certified GKH Gardening Expert
Some of the roots will continue to sprout even once the stump is removed. This article will help with eliminating wisteria: https://www.gardeningknowhow.com/ornamental/vines/wisteria/controlling-or-getting-rid-of-wisteria.htm