This is one of the better videos on serecia control because it covers the details of plant growth, physiology and genetics which are key points for eradication. Note, lack of grazing after Aug 1 combined with long term dormant season fire promotes the plant. Those management activities have created a 'wild type' serecia which is tougher plant than improved cultivars.....eg a natural GMO. Like I have stated before serecia likes long rest periods without disturbance!
http://www.gpfirescience.org/events...a-lespedeza-cuneata-in-the-kansas-flint-hills
http://www.gpfirescience.org/events...a-lespedeza-cuneata-in-the-kansas-flint-hills