The Invasive Swallowworts: What has been Learned and how Serious is their Threat to Natural Areas?

   We’ve all seen swallowwort covering the ground in local preserves. In this presentation, Prof. DiTommaso will summarize the current understanding of the biology and ecology of the invasive nonnative perennial vines, pale swallowwort (Vincetoxicum rossicum) and black swallowwort (Vincetoxicum nigrum).  Management options will also be discussed as will the threat they pose to natural areas and native plant species.