I'm often asked about success rate and treatments. This is a Japanese knotweed site near Sevenoaks. Here are a few photographs of the stages of treatment. I would certainly say I have it happily under control now. A few small stems appeared for me on this visit I have just carried out, which is to be expected. (I started this job ins 2017). Well I am really pleased! I am also looking forward to the native plants regrowing here now this brute of a plant has been knocked on the head - so to speak!