Ash Dieback Disease

Debate between Baroness Ritchie of Downpatrick and Caroline Lucas

Monday 12th November 2012 Commons Chamber

[Caroline Lucas (Brighton, Pavilion) (Green)]

I was glad to hear the Minister say that he was determined to learn the lessons of this outbreak, because inadequate biosecurity has been a problem under successive Governments. Instead of arguing about wind direction, we need to ask more fundamental questions about the role of trade and imports. The present situation reminds me of the stories that were put about on bird flu when we were first invited to believe that it was spread purely by wild birds, rather than, as it turned out, as a result of the increasing international trade in poultry and eggs.

In April 2012, in a paper in the scientific journal Nature, scientists warned of wider threats, pointing out that the past two decades have seen an increasing number of virulent infectious diseases in natural populations and managed landscapes. The authors warn that in both animals and plants an unprecedented number of fungal and fungal-like diseases have recently caused some of the most severe die-offs and extinctions ever witnessed in wild species. That has serious implications for wildlife and food security.

On the import of trees, a strong scientific case is being built for more radical controls to tighten biosecurity. Hon. Members may have read in the press the views of senior scientist Dr Stephen Woodward, a specialist in tree disease research at the university of Aberdeen. He advises that the Government must now ban imports or use quarantine for other iconic trees such as oak, pine and plane if they are to be saved from disease. I believe that we have to take that call seriously. Dr Martin Ward, DEFRA’s chief plant officer is also warning that ash dieback is just one of what he calls a “tidal wave of pathogens” that are arriving in Europe. He rightly describes the situation as terrifying, and he warns:

“Unless we have better bio security in the EU it will be very difficult to stop them coming in.”

The scale of the trade in plants for forestry planting is absolutely vast. Approximately 10 million plants are imported for forestry planting every year. That means we need to take much more account than we have done until now of the potential for environmental damage from such trade. For example, in Australia, there are much stricter rules around quarantine, and my understanding is that what happens there is much more effective than anything we have in place in Europe. If plants that could be known to be carrying pathogens were quarantined, we might be able stop at least some of these diseases spreading and slow down others. The case for an import ban, if quarantine conditions are not met, must also be thoroughly and urgently considered.

We also need to look at why we have exposed ourselves to the risks that imports bring. Hon. Members may have read reports of the comments by Dr Jon Heuch, a member of the Forestry Commission’s biosecurity programme. He reports that the seed of the ash is frequently sent abroad from the UK and the trees grown from these seeds are then imported back and sold as having UK provenance. Indeed, there seems to be an extraordinary trade in plants and saplings that are grown in other parts of Europe simply because mass production there means that it is cheaper. Half a million ash trees are imported in the UK every year for use in woodland and gardens. The Horticultural Trades Association admits that many saplings are labelled as British because customers like “local provenance”.

[Ms Margaret Ritchie (South Down) (SDLP)]

Considering the importance of forestry and woodland as a tourist resource, does the hon. Lady agree with me that it was rather odd that it took nine months from the onset of the disease here for DEFRA to effect a ban? Would she like to shed some light on that in the context of plant biosecurity?

[Caroline Lucas]

I thank the hon. Lady for her intervention, and I hope she will forgive me if I agree with her point, but stress that what I want to underline right now—we have already had quite a lot of focus on the timetable and how long it took DEFRA and the Government to declare an emergency—is the central issue of the imports. I am really concerned that we are going to overlook the role of trade and imports when it comes to the vulnerability of the UK in particular and Europe in general to more and more of these diseases that are coming towards us.

Let me say a few words about the forestry grants system. In a sense, it also seems perversely to encourage greater imports. As I understand it, grant agreements specify the type of trees and how much will be spent, including the conditions for the money and specific type of tree, but this could be agreed much more quickly so that UK growers have time to be able to grow them here in the UK rather than feeling forced to source them from abroad. Because the Government tend to agree to these grant schemes very late, it does not give enough time for confidence to grow in the UK market. When they are eventually agreed, we do not have time to grow the saplings, so the foresters go abroad. The Government could usefully look at the whole issue of the forestry grants, and some of their perverse implications when it comes to promoting more and more of this sourcing of our saplings from overseas. Once the seed is grown in the UK, it then goes overseas and then we bring it back again. It seems a crazy system, and it is also very costly when we understand what it is doing to our vulnerability.

I want the Minister to look at two other pieces of legislation, which, although they deal with non-native species, could have some useful read-across for us. A forthcoming EU legal instrument, due in draft imminently, will look at forestry in particular. Scotland has new INNS—invasive, non-native species—legislation, which is far ahead of what we have here in the UK when it comes to biosecurity.

I hope that the Secretary of State will respond positively to early-day motion 663, tabled by the hon. Member for Richmond Park (Zac Goldsmith). Since he did not mention it, I will underline it for him now, because it calls precisely for increased resources to ensure both a rapid response to other disease outbreaks and greater screening and control of imports to minimise the spectre of disease.

Finally, let me underline what other Members have said, which is that it is not enough for the Secretary of State to say that he will move resources from elsewhere in DEFRA to deal with this problem. If he does that, we will not know what robbing Peter to pay Paul will actually mean in practice. We need to find new resources to tackle this issue; we need to look again at the resources for the Forestry Commission; and we need to learn the lessons so that we have much stronger biosecurity in the future.