Visual identification of symptoms on plants is often the first indication that they are affected by a virus disease. This 2 CD set provides an international collection of colour images of virus symptoms and other associated images that emphasize identification and provide information on epidemiology, losses, and control. The CDs present information on field identification not available from other sources. Most of the information on plant resistance is not easily available as well, especially across several viruses affecting a single plant. Compatible with PC and Mac