Populations of bees, spiders, ground beetles and hoverflies have declined twice as fast on land farmed for crops in the past 30 years, despite funding for more sustainable farming methods

Conservation measures over the past 30 years have failed to stop the decline of insects on British farmland, a new report shows. Populations of bees, spiders, ground beetles and hoverflies have disappeared twice as fast in areas intensely farmed for crops, according to the paper, which looked at citizen science data on more than 1,500 invertebrate species.

Although there was a push to intensify agriculture after the second world war, since the early 90s more sustainable and wildlife-friendly farming practices have emerged, with EU agri-environment funding made available for farmers to plant hedgerows and wild flowers, alongside better regulation of pesticides. However, these have not managed to stem biodiversity loss.