Neonicotinoids and other Pesticides

Debate between Samantha Dixon and Duncan Baker

Tuesday 5th March 2024 Westminster Hall

[Samantha Dixon]

I agree with the hon. Lady and I thank her for the intervention.

Last night, I noted a BBC article entitled “Bee-harming neonicotinoid use ‘makes a mockery’ of ban”. There is no doubt that there is an issue with virus yellows, but we are facing a biodiversity emergency and lifting the ban is not the way forward. We have got to find another way. I support the calls made in the article by Richard Benwell, the chief executive of Wildlife and Countryside Link, for the Government to urgently deliver their long-awaited strategy on sustainable pesticide use.

Bees and other pollinators have for many years been facing an increasingly difficult task in the face of changing agricultural practice. That is a challenge in itself for our farming community, but it can also lead to a decrease in available forage and produce monoculture deserts for much of the year, making insect existence increasingly challenging. It is well known that neonicotinoid pesticides can be very harmful to a wide range of insects and invertebrates, including our beloved bees. They affect the nervous systems of bees and other insects, resulting in paralysis and eventually death. In fact, author and academic Professor Dave Goulson has warned that just one teaspoon of this type of chemical is enough to kill 1.25 billion honeybees. That is equivalent to four lorry loads.

Environmentalists, campaigners and local beekeepers have been in touch with me ahead of this debate to share their views and concerns on this topic, including the Wildlife Trust, our own Chester zoo, and Angharad, a local beekeeper who kindly alerted me to a report by the expert committee on pesticides that states:

“There is new evidence regarding the risk from neonicotinoids globally which adds to the weight of evidence of adverse impact on honeybee behaviour and demonstrated negative impacts on bee colonies”.

Bees play a crucial role in our food supply chain by pollinating crops, and their decline could have cascading effects on biodiversity and agricultural productivity. We should be protecting them, not putting them in harm’s way. Insect populations have suffered drastic declines in the UK. Recent evidence suggests that we have lost 50% or more of our insects since 1970 and that 41% of the Earth’s remaining five million insect species are threatened with extinction. Of course, other human factors and habitat loss are also to blame, but so is the widespread use of neonics. Given that a third of our food crops are pollinated by insects, we have a lot to lose.

The Government’s emergency authorisation allows the seed coating of sugar beet crops with neonics—a method of application that results in only 5% of the pesticide reaching the crop. The rest accumulates in the soil where it can be absorbed by the roots of wildflowers and hedgerow plants visited by bees, or it can leech into watercourses and affect the wildlife that lives there. If we thought sewage in our waterways was not enough, we are also adding harmful chemicals into the mix. Harmful neonics have been found in more than 10% of English rivers despite a widespread ban in 2018. In more than half the rivers where neonics were detected, they were at levels that pose a significant risk to wildlife. I back our farmers and am concerned that sugar beet farmers are experiencing a difficult time. However, lifting the ban is not the way forward. In fact, the Department for Environment, Food and Rural Affairs’ own economic analysis found that there was little impact of the beet yellows virus on sugar beet yield in untreated crops.

[Duncan Baker (North Norfolk) (Con)]

Pollinators, which are obviously the subject of the debate, are particularly important, but what about human health? Norfolk County Council is the first council in the country to ban glyphosate. That is an important move forward, and perhaps the hon. Lady will give her thoughts on that. More importantly, should we not be trying to find naturally produced, sustainable products that are not harmful to pollinators or human health and to repeat what has happened with Norfolk County Council and glyphosate? We should be rolling that out and putting all our scientific efforts into trying to find those products for the future.