Today's webinar on forest herbicide control of vegetation raised some questions about herbicides to control swallow wort. I will provide a summary here, but note that herbicides are regulated and should not be used indiscriminately. Read and follow the label. Also, note that each state has differently label details, or may have, so review your state's regulations. Feel free to post links to other states as comments to this blog.
It is important to note that the exemption labels listed below often specify specific locations for applications, or other details of the treatment. The user needs to match the target species, with the treatment method, with the product.
Summary page for NYS registered pesticide labels here
Summary page for NYS labels that have exemptions for use (the links below are listed) here
Exemption for Round up Pro on swallow wort here
Exemption for Ortho Brush be gone for swallow wort here