Neonicotinoid Pesticides

Debate between Martin Caton and Caroline Lucas

Tuesday 25th January 2011 Westminster Hall

[Martin Caton]

I do agree. The evidence of increases is largely anecdotal, but I shall quote the president of the Italian Association of Beekeepers, because in the Po valley a ban was introduced. He said:

“On behalf of bee-farmers working in a countryside dominated by maize crops, I wrote to the Minister of Agriculture to confirm the great news, for once: thanks to the suspension of the bee-killing seed coating, the hives in the Po Valley are flourishing again.”

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

Does the hon. Gentleman share my concern that in European countries the initial licensing for such controversial pesticides is done by way of a draft assessment report organised by the manufacturer? Shockingly, the DAR for the commonest neonicotinoid used in Europe was put together by Bayer, who, surprise, surprise, did not find a problem with it. Does he agree that there is a problem with metholodogy?

[Martin Caton]

The hon. Lady has taken me to a point in my speech where I was intending to say the same thing; I may not have to say it now, thanks to her.

On the basis of its findings, Buglife called on the Government to reconsider the position of neonicotinoids, and to suspend existing outdoor approvals for the products pending the findings of a review. It also called for the development of international methodologies for assessing the effects of systemic pesticides and sub-lethal impacts on invertebrates.

--- Later in debate ---

[Martin Caton]

That is exactly my case. The evidence against the neonicotinoids now is that they make bees and other pollinating insects more susceptible to diseases, so it is not just one factor. We cannot rule out the effect of these systemic pesticides. That is the mistake that has been made so far.

Dr Jeffrey Pettis and his team at the US Department found that increased disease infection happened even when the levels of the insecticides were so tiny that they could not subsequently be detected in the bees, although the researchers knew that they had been dosed with it. Those findings are completely in line with some of the other research that I have already mentioned. That research evidence from the other side of the Atlantic follows hard on the heels of the “leaked memo” from the US Environmental Protection Agency, which is about a newer neonicotinoid called Clothianidin. It is highly critical of the risk assessment process used in the US. It states:

“Information from standard tests and field studies, as well as incident reports involving other neonicotinoid insecticides, suggest the potential for long term toxic risk to honey bees and other beneficial insects.”

Alarm bells should be ringing by now. Neonicotinoids are a group of relatively new compounds that mimic the insect-killing properties of nicotine. They are neurotoxins, attacking the central nervous system of the invertebrates. They are systemic, which means that they get taken into every part of the plant, including the pollen and nectar. In turn, that means that bees and other pollinating insects can absorb them and carry them back to their nests or hives.

In 2008, total neonicotinoid use in Britain involved more than 2.5 million acres—some quarter of the arable cropland in this country—and they are big earners for the chemical companies that produce them. According to the article in The Independent, the German company Bayer earned more than £500 million from the sale of its top-selling insecticide, Imidacloprid, in 2009, which fits in with the point made by the hon. Member for Brighton, Pavilion (Caroline Lucas). As she said, there is no independent monitoring of the process of gathering and assessing results by the manufacturer. When that is the foundation of the approval system, is it any surprise that we find disparities between the findings of subsequent independent research on this systemic pesticide and the research in its own 2005 draft assessment report?

We need to look again at the approval mechanism for crop protection. In doing so, we should be employing the precautionary principle.

[Caroline Lucas]

Does the hon. Gentleman not agree that DEFRA seems over-complacent about the issue of the ill health of bees? In 2005, I asked the European Commission to comment on cuts that were being made that would halve the number of seasonal bee inspectors. Given that it has been estimated that beekeeping contributes £165 million a year to the UK economy in direct costs and unquantifiable value to the health of our ecological systems, one would have thought that keeping a high number of seasonable bee inspectors would have been a good precautionary measure.

[Martin Caton]

I would not disagree with that. That leads me on to my next point. We are not just talking about honey bees. I am sure that all our hearts go out to beekeepers in these very difficult times, but only 8% of insect pollination is from honey bees; other pollinators contribute enormously to our food security and to the quality of our ecosystem.

As I have given way so many times, I will not be able quite to complete my speech, but I would like to make some points for the Minister to respond to. If he cannot do what I would really like him to do, which is to suspend the use of all new neonicotinoids from tomorrow, I request that he commit today, or in writing as soon as he can, to reviewing the new research that I have referred to, and to reconsidering the licences that have been granted. I request that he withdraw the licences that allow neonicotinoids to be used on plants that produce nectar and pollen until the evidence is clear that they have no impact on the environment, and that he establish a national monitoring system for pollinators and pollinating rates. I ask him to produce a formal response to the scientific papers to which I have just drawn attention, stating what concentrations of neonicotinoids are found in UK water bodies and whether the levels are routinely monitored. I also request that he ask the Environment Agency to work with other agencies to undertake a review of those levels, commissioning research that would be scientifically robust enough to clarify any link between the pesticides and UK populations of wild pollinators.

A Government who aim to be the greenest ever cannot ignore a hugely significant threat to arguably the most important tier of animal life on this planet. They need to act; now is the time to wake up and smell the coffee.