Two sprayings with sodium chlorate or Atlacide applied at the right time and in the right manner will whip Canada thistle and European bindweed (creeping Jennie).
Bakke, A. L.
"Spraying Tough Weeds,"
Farm Science Reporter: Vol. 3
, Article 5.
Available at: https://lib.dr.iastate.edu/farmsciencereporter/vol3/iss3/5