Tree Health in England

Baroness Young of Old Scone Excerpts

Thursday 9th June 2022 Grand Committee

[Baroness Young of Old Scone (Lab)]

My Lords, hear, hear. I declare an interest as chairman of the Woodland Trust. Ash dieback is very serious. The study in 2019 showed that the long-term economic and environmental cost would be about £7 billion over the next 10 years. Ash supports more than 900 other species, of which 44 are entirely dependent on ash. They are very important—particularly, in my view, because they are the most prevalent form of standard trees in hedgerows, and hedgerows with standard trees are vital for the movement of species across the countryside that will be required with climate change.

The noble and right reverend Lord, Lord Harries, outlined how some trees appear more resistant, or at least tolerant, of ash dieback, but there is a long way to go before we are in a position where we will have tolerant seed stock on a widespread scale and are able to plant trees that will persist in the environment. The reality is that we should not hold our breath on the research. We need to take steps now. One of them is not to cut down trees that have ash dieback unless they are a risk to human health and safety. We are unnecessarily destroying trees that may recover or show signs of tolerance or resistance.

Ash dieback is only one of the diseases that affects trees. There is now a pathogen, pest or disease for almost every single species of tree that we have in this country—and if not here already they are lurking somewhere on the continent, ready to come. It is vital that we take tree health and biosecurity seriously across the board, particularly in view of the fact that we are dashing to plant and regenerate trees in the face of climate change: there is no point in increasing the tree cover if it is promptly going to die.

In conclusion—I have already had two minutes and 15 seconds on my timer—I urge the Minister to think about three things in terms of tree health measures. First, let us really have a drive to reduce imports by promoting the UK nursery sector. Will he support—as he is already doing—and promote even more firmly the UK and Ireland Sourced and Grown accreditation system, which aims at all tree stock, from seed to mature tree, being grown in this country or Ireland?

Will he tell us and get on with—this is more of a government-wide issue—the delayed last stage of implementation of the UK sanitary and phytosanitary regime? We still have distressing examples of new pests getting past port controls: the recent introduction of the pine processionary moth in April is just one example. So, when will we finally get the SPS fully implemented?

Lastly, will the Minister tell us when we will see the new version of the GB plant biosecurity strategy and, particularly, its associated industry plant health accord? It is vital that the whole tree planting and nursery industry, along with the conservation world, is massed behind this effort if we are to see healthy woodlands providing places for biodiversity, places for people and combating climate change—and I have finished before the end of my alarm, which was going to quack like a duck.