Last Updated: Thursday, October 28, 2010, 12:50
Scientists are searching for new uses of tobacco and one potential use they have found is its use as a natural pesticide.
Last Updated: Tuesday, January 12, 2010, 15:10
Researchers have made use of powerful, paralysing venom produced by scorpions to develop a safe and ecologically sound pesticide that immobilises animal prey on the spot.
more videos >>