Insect Population

Emma Hardy Excerpts

Wednesday 20th March 2019 Westminster Hall

[Alex Sobel (Leeds North West) (Lab/Co-op)]

I beg to move,

That this House has considered the reduced insect population.

It is a pleasure to serve under your chairship, Mr Davies. I am glad to see so many hon. Members present. I will give them plenty of time to intervene, but I hope that they will let me make a bit of progress first. I secured this important debate because the declining insect population is one of the lesser-known tragedies of the human effect on our environment. I wanted to call the debate “Insect Armageddon” or “Insectageddon”, but unfortunately I am little ahead of the House authorities on such matters. That is what we are experiencing, however, and we should be under no illusion about that. Insects are the canary in the coalmine of animal life on the planet: if insects go, all other species will follow.

If we are fighting a war against climate change—we should be under no illusion that we are experiencing a climate emergency—insects are on the frontline of the battlefield and humans are just another species in the war. We are the most intelligent soldiers fighting the war, however, and we cannot expect insects to know that their fields are being built on or that their farmer is using nitrates. We know that our actions are causing the disruption to their ecosystem.

I secured the debate due to the absolutely shocking evidence I heard in the Environmental Audit Committee evidence session on 12 February. I want to put on the record my thanks to Professor Georgina Mace, Dr Mark Mulligan, Professor Peter Cox and Matt Shardlow, who gave the evidence that inspired this debate. I also thank the National Trust, the Royal Society for the Protection & Birds, Friends of the Earth and Buglife, which have informed what I will say.

There is a massive depletion of insects, in relation to biomass and abundance. Some studies also show a loss of variety. Most people born by 1980 will perceive that, because 25 or 30 years ago, on a long summer car journey, the windscreen would be full of winged insects. That is now minimal. Why do we need abundance, biomass and a variety of insects to ensure a healthy planet? We need abundance and biomass to support the production of food and water, and to support nutrient cycles and oxygen production. We need variety because that ensures that if a single insect species becomes extinct, we will retain sufficient diversity. New varieties may be able to cope with climate change and other challenges that humans and the planet provide. Studies have most clearly documented the loss of abundance and biomass, which has mostly been caused by land use change for agriculture, the intensification of agriculture, and the application of pesticides, herbicides and novel chemicals in the environment.

[Emma Hardy (Kingston upon Hull West and Hessle) (Lab)]

I am delighted that my hon. Friend has secured the debate. Does he agree that one way to encourage greater insect populations is to have living streets, such as the one that we are talking about in Whitefriargate in Hull? That whole street will be turned into a living street full of plants and, hopefully, insects.