Mechanical Treatment

Mechanical removal of undesired vegetation is primarily completed with the use of our LIGHTFOOTTM masticator equipped with a rubber tract skid steer and masticating head or chainsaws or mechanical implements to remove weeds. Restoration crews range in size from 2 to 20 individuals, and often utilize multiple tools between the crew.  As described below, each of these techniques has their particular advantages.


  • Mastication:  Ideal for dense, large, relatively gentle sloped areas with little understory vegetation (e.g. blackberry and Scot’s broom thickets).
  • Chainsaw Removal:  Ideal for woody invasives (e.g. blackberry and Scot’s broom thickets), that are on steep slopes or scattered across the landscape.
  • Weed Eater: “Weed wackers”  can be effective for reaching smaller patches of invasives in areas where the Lightfoot cannot access.
  • Metal Blade Weed Removal Ideal for smaller-stemmed invasives that are less dense and ensures that treated stems are close to the ground.

Please contact Habitat Restoration Coordinator Matt Mellenthin, 541 929-3408 and visit our Projects: Terrestrial Habitat Restoration page for examples of Mechanical Treatment Projects completed by IRM.