Nature and EnvironmentMighty ducks fight pests in South AfricaTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNature and Environment10/06/2016October 6, 2016White dune snails are wreaking havoc on grape vines in South African vineyards. Ducks - and not chemical pesticides - are being used to fight them. That's good news for bees and other insects. https://p.dw.com/p/2Qy1uAdvertisement