Japanese Knotweed

Viscount Ridley Excerpts

Tuesday 7th November 2017 Lords Chamber

[Lord Gardiner of Kimble]

We are discussing an invasive species. Although I am well aware that in Japan young shoots are consumed, I would not advise it here. I do not think that is a very sensible proposal for this county. On mortgages, some new policies are now available and the RICS put out a very helpful paper in 2012, which has assisted in this matter as well.

[Viscount Ridley (Con)]

Is my noble friend aware that by far the most effective technique for controlling Japanese knotweed is the use of the broad-spectrum herbicide glyphosate, otherwise known as Roundup, which is under threat of being banned, even though it is entirely safe according to most international agencies, with the exception of one debunked study by a scientist who, it now appears, was in the pay of bounty-hunting US lawyers? Will the Government stand firm on the relicensing of glyphosate?

[Lord Gardiner of Kimble]

My Lords, the Government are absolutely clear that we should consider these matters on the best scientific assessment available. Both the European experts and our own experts think that glyphosate should be approved. The important point about its use on Japanese knotweed is to spray the underside of the leaves as well.