Thanks for this. I too am sorry for my abrupt attitude at the event which was in part due to the frustrations generated by the technical problem with the projector. Incidentally if you visit our Japanese knotweed alliance website you will find a voiced-over powerpoint presentation which has a lot of the images you missed out on. It is clear that you paid close attention to what is a complicated field of research and I appreciate your support. A couple of small suggestions to the blog, the psyllid increases the number of leaves but reduces their total surface area per plant but it is the generally debilitated nature of the infected plants that would make them more susceptible to control as they are haemorrhaging fluid and nutrients every day making a weaker target. The effects should increase year on year as the rhizome should be depleted over time. Also on the second page aphid instead of psyllid.

I hope that soon you will be able to see the beast in action and it enables you and your industry to have even more success in knotweed control in the future.

Yours sincerely

Dick