This detailed book explores strategies that have been developed to combat plant virus infection. Beginning with a section on techniques for identifying and studying the virus resistance gene involved in plant innate immunity, the volume continues by delving into techniques related to novel mechanisms of plant virus resistance, methods for the analysis and practical use of RNA silencing, as well as methods for the development of plant viral vaccines. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls.