02/08/2026
Did you know there is a treatment window for Japanese knotw**d?
If you have had yours treated before late August, it was probably too early.
The best time is after the flowering stage and at least 2 weeks before the first frost.
Unfortunately many companies spread out visits through the summer to keep their staff busy but it is counterproductive and can result in the plant becoming resistant to herbicides and requiring far longer management to bring under control.
We don't do that. We understand how crucial timing for treatment is.
It's not too late to get a management plan in place with us.
Caledonian Knotw**d Specialists Ltd