Project: Clearing a Japanese knotweed infestation
Client: Western Isles Council
Contractor: Japanese Knotweed Control
Cheshire-based firm Japanese Knotweed Control (JKC) was faced with a number of environmental challenges on a contract to clear an infestation of the invasive species from a proposed care home scheme on the Isle of Harris in the Outer Hebrides.
Shallow peat soils, high winds and salt air meant the knotweed's growth was stunted so the firm was unable to use its standard technique of injecting herbicide into the plant stems.
Instead staff teamed up with council workers from Harris, Lewis and the Uists and used wipes to apply glyphosate herbicide to each leaf. Prior training ensured the work would not put surrounding trees and shrubs at risk. JKC is to repeat the operation on a building redevelopment in Stornoway.