Biosecurity and Infectious Diseases

Lord Carrington Excerpts

Thursday 18th January 2024 Lords Chamber

[Lord Carrington (CB)]

My Lords, I welcome this important and topical debate, and I thank the noble Lord, Lord Trees, for initiating it. I also believe he may have had something to do with the headline in today’s Financial Times, “Dover Port warns of food safety risk”. The article says that health inspectors at Dover have warned that a proposed 70 per cent cut in government funding poses a risk to food safety and animal health. This should be a matter of great concern to the noble Lords, Lord Krebs and Lord Browne.

I declare my own interests, as set out in the register, in farming and woodland. The debate covers a wide variety of issues, but I would like to confine my remarks to the central importance of healthy trees and woodland when we address biosecurity and climate change.

In 2020-21, around 13,500 hectares of new tree planting was undertaken in Great Britain, of which England and Wales accounted for only 2,500 hectares. Driven by achieving net-zero carbon by 2050 in the 2019 climate change legislation, the English tree strategy of 2021 identified, as we have heard, a target of 30,000 hectares of new planting a year by 2025—next year. We therefore have a huge mountain to climb in terms of planting trees, made even more complicated by diseases such as ash dieback and, of course, climate change. That leaves aside the fact that appropriately fertile land, and alternative uses of that land driven by profitability calculations, taxation considerations and much else, can be a major disincentive. We still await the Government’s promised land use framework, which will attempt to reconcile the competing demands of food production, biodiversity, carbon sequestration, forestry, flood management and much more. Perhaps the Minister could use his influence to accelerate the promised framework, in which climate change factors are major ones.

Today we are focusing on biosecurity, diseases and climate change, which, together with increased tree-planting targets to assist our carbon strategy, mean that every effort must be made to improve and increase our source of trees through careful selection, based on genetic diversification, in order to breed more resistance to diseases and better-quality hardwood. This can be achieved by genotyping basic materials to ensure high and representative genetic diversity.

Simultaneously, we need to increase the availability of the improved planting material of native and non-native species. We need to look at importing, both to increase conventional seed supply and to identify planting stock from warmer climates. This needs to be carefully controlled; we are lucky in this country to have scientific research organisations such as the Future Trees Trust doing precisely this. With improved planting stock, there are other major advantages such as faster establishment, reduced mortality and a reduced need for herbicides, resulting in improved timber quality and, of course, earlier carbon capture. Much of this improvement in planting stock mirrors what has been done in the farming industry in identifying new seed varieties to increase yields and provide greater resistance to pests and diseases. The passing of the Genetic Technology (Precision Breeding) Act last year has given this research a major boost.

A highly important aspect of the likely requirement to import seed and plants from overseas is to enhance and promote the plant certification scheme in nurseries to ensure traceability and engender confidence in our imports. This was a major issue raised by the House of Lords Horticultural Committee in its recent report. I would be interested to hear from the Minister, if he has time, of any further government plan to support, widen and strengthen that scheme, including making it compulsory.