The Facts

Return and Refund Program

DuPont has implemented a return and refund program for Imprelis® herbicide. The following products are included in the program:

  • Imprelis® herbicide (D14616296) – 4.5 fl oz bottle
  • Imprelis® herbicide (D14563533) – 1.0 gallon bottle
  • Imprelis® herbicide (D14544159) – 2.5 gallon bottle

If you are a distributor or customer with full and/or partially full bottles of Imprelis®, or have Imprelis® product remaining in mixes or spray tanks, please call 1-866-796-4783 for further instructions on the return and refund for any remaining Imprelis® in your possession.

Note that the EPA approved disposition plan suggests that you maintain records associated with Imprelis®, including but not limited to: 1) quantities used and returned, including product lot numbers 2) application records, and 3) purchase records.

About Reported Imprelis® Damage:

  • The damage that has been reported appears to have particularly affected certain sensitive tree species, such as Norway spruce and white pine, but DuPont has also received reports of damage to other species. For a list of species covered by the settlement, please visit
  • The majority of the reported damage was concentrated in a geographic band that includes Minnesota, Michigan, Indiana, Ohio, Pennsylvania, New Jersey and Wisconsin.
    • The suspected injury to trees associated with Imprelis® has varied, depending on tree size, age and timing of growth. The damage reported has most often been in the current year’s growth.
    • The most commonly reported symptoms have been needle browning and curling of new growth.
      • For additional information and pictures of symptoms, please visit
  • DuPont has engaged arborists to help the company understand and evaluate the reported damage.

DuPont Actions:

DuPont is taking the following steps to address Imprelis® related tree damage:

  • Hosting this website to carry the latest information about Imprelis® and to make it easier for customers to report problems.
  • Continuing to consult with the Environmental Protection Agency, state regulators and university extension specialists on this issue.
  • On September 6, 2011, DuPont began a process to fairly resolve claims for impact on trees that Imprelis® herbicide may have caused.
  • DuPont has reached Final Settlement in a class action lawsuit in federal court in Pennsylvania. For information about the settlement, please visit