Japanese Knotweed

Baroness Jones of Whitchurch Excerpts

Monday 7th November 2016 Lords Chamber

[Lord Gardiner of Kimble]

My Lords, I certainly acknowledge what is happening in the noble Lord’s part of the world and I am well aware of the group in Pendle. Many local action groups are working to treat this problem and there is very good national coverage. As examples of where, with tenacity, we can deal with this, the Norfolk local action group eradicated all Japanese knotweed on the River Wensum special area of conservation, while in Bristol Japanese knotweed on all publicly owned land is now 95% under management. There are a number of good stories to tell. My view is that wherever people are determined to deal with this, it can be dealt with.

[Baroness Jones of Whitchurch (Lab)]

My Lords, the Minister recently wrote to me confirming that Defra has a list of non-native species on its national eradication programme but that Japanese knotweed is not on it. Is that not evidence that the Government have rather given up on trying to eradicate it from our shores?

[Lord Gardiner of Kimble]

My Lords, I must be clear: this plant has been in the country since the 19th century and is very widespread—unfortunately, we sent it from Kew up to Edinburgh, thinking it was interesting. The prospect of eradicating every bit of Japanese knotweed is, alas, not viable at the moment but we hope the psyllid will, if successful, weaken the plant. That is the whole purpose of it. Certainly, where we have had species such as the Asian hornet, we acted immediately to deal with it. There are a number of species on the list that we want to eradicate immediately but I am afraid that a plant such as Japanese knotweed has been here rather too long.