Bee-killing pesticides are to be banned by the UK government, as ministers set out plans to outlaw the use of neonicotinoids.

However, the highly toxic neonicotinoid Cruiser SB could be allowed for use next year, as ministers are considering applications from the National Farmers’ Union and British Sugar.

This powerful pesticide poisons bees by destroying their nervous systems. Prof Dave Goulson, a bee expert at the University of Sussex, has said that one teaspoon of the chemical is enough to kill 1.25 billion honeybees. Even at non-fatal doses it can cause cognitive problems that make it hard for bees to forage for nectar, and the chemicals can stay in the soil for years.