Dallas from Alpha Illinois writes
Tordon RTU Specialty Herbicide is a very damaging product to surrounding plants due to it’s active ingredient, Picloram. Untreated trees/plants can occasionally be affected by root uptake of herbicide through movement into the the topsoil or by excretion of the product from the roots of nearby treated trees. We recommend contacting the manufacturer Dow AgroSciences at 800-992-5994 for advice on what to do at this time.
Answer last updated on: 08/15/2019