The first factor for a successful application is obviously that farmers can access and use it,” James Legg tells SciDev.Net

James Legg, a Tanzania-based plant virologist at the International Institute of Tropical Agriculture, has spent two years working with field researchers and software developers to improve an app to diagnose cassava diseases.

“The first factor for a successful application is obviously that farmers can access and use it,” Legg tells SciDev.Net. “So, you need something that is free and in their own language.”

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