The US Environmental Protection Agency has approved the use of a sprayable biopesticide that relies on RNA interference (RNAi) to combat the destructive Colorado potato beetle. The pesticide’s active ...

The agency said the product, which includes “forever chemical” components, is safe if used according to label restrictions.

TV gardener Alan Titchmarsh has urged people to keep an eye out for Colorado beetles, which pose a “savage” threat to the British potato industry. The insects and their larvae feed on the foliage of ...