Trees: Sudden Oak Death

Baroness Sharples Excerpts

Thursday 10th February 2011 Lords Chamber

[Lord Henley]

My Lords, my noble friend is right to draw attention to the dangers of this disease, which I think was first discovered in viburnam. It then moved to rhododendrons and bilberries, but then, far more alarmingly, it moved into Japanese larch where it is difficult to detect other than from above by use of helicopters. We have put considerable funds into research into it. Defra is funding a five-year £25 million programme against this organism and against Phytophthora kernoviae. We will continue to assess what is happening. At the moment the advice is that the best possible policy is to fell the timber. Some of it is on Forestry Commission estate, some is on private estates. We will continue to do that as appropriate, particularly in the west of England.

[Baroness Sharples]

Can my noble friend tell me how one recognises this disease?

[Lord Henley]

My Lords, we recognise it in its early stages by identifying it flying above the woodlands because it seems to appear in the top of the larch when the larch is in needle. As the noble Baroness will know, Japanese larch is deciduous so one can identify this organism only in the summer and spring. However, we have made great progress in identifying possible areas where it occurs and then going into the woods on foot to identify it.