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This article has been reviewed by our invasive weeds expert: Darren Greatbatch, Specialist Advisory Manager, Amenity & Invasive Weeds, at Environment Controls. Last reviewed on 10th April 2026. This article explains why Himalayan balsam is similar to knotweed in the issues it causes, compliance around its removal, and potential fines that are commercial concerns for developers,…
Want to find out how to reduce herbicide usage on amenity contracts without reduced efficacy? Discover the reasons why this matters and how we can help.