Backpack Spraying, Weed Wiping & Cut Stem

The cornerstone of aquatic invasive treatments is backpack herbicide application and hand pulling.  While herbicide application is often the most cost effective approach and hand pulling is the most ecologically sound, the use of both techniques in tandem often produces the best results.

Our aquatic licensed restoration crews have thorough experience in the identification of both native and noxious riparian species.  Our crews can mobilize to aquatic/riparian sites using chest waders, canoes or jet boat.

IRM’s aquatic restoration team has the capacity to mobilize up to 20 technicians to combat invasive species threats on your site.  Our project managers all have their aquatic herbicide endorsement from the ODA.  IRM can tailor our chemical treatments to meet the level of concern warranted on each individual site.


  • Foliar Backpack Application:  Our restoration crews will conduct targeted spot spray or broadcast applications of invasives using backpack sprayers.
  • Weed Wiping:  Using a fabric surface soaked in herbicide solution, non-desirable plants are wiped with herbicide.  This is a drip-less technique used to treat target species while avoiding desired species.
  • Cut Stem or Hack & Squirt Application:  This allows applicators to concentrated herbicide just to the cut surface of the stem of noxious weeds and woody plants such as English hawthorn, holly or cherry with either chainsaw or ax.  This method prevents over spray into the environment.