Surveillance of virus diseases in UK pea crops

1. Generic Surveillance Approaches - Presence and Incidence of viruses: Develop a generic surveillance approach which can be applied to any field crop with minimal adaptation. The approach will combine novel sampling and testing approaches and should allow for determining the presence and absence of known, unexpected, and currently unknown pathogen candidates. The same field sample will also be used to determine the field incidence of pathogen candidates. In this case pea will be used as a model crop for the proof of concept. 2. Impact assessment of viruses: Fields identified through Objective 1 will be sampled at harvest to ascertain yield and quality losses.