An effective and biosafe method of controlling nematode worms in rice is now ready for trials in rice-growing countries. Nematodes are a serious pest in a wide range of crops and the technique is generating a lot of interest, particularly in South Asia, Africa and South America. Tested on a wide range of crops in the USA, China and Uganda, the technology is already being used in both developed and developing-world countries. It has great potential for agriculture in India and China where governments strongly support biotechnology as a way to rapidly raise food production.