Symptomatology associated with “Purple top”, an emerging disease of solanaceous fruit species

“Purple top” is an emerging disease that affects solanaceous crops, reported mainly on Solanum tuberosum (potato). Additionally, Bactericera cockerelli has been as the insect vector of Candidatus Liberibacter solanacearum (CaLso), a pathogen associated with this disease. However, information about in Andean fruit species such betaceum (tree tomato), S. quitoense (naranjilla) and Physalis peruviana (cape gooseberry) almost nil. This study was carried out Tumbaco Experimental Farm INIAP to describe phenotypic symptoms caused by Molecular diagnosis PCR method diagnose causal agent symptomatology. The main observed were purple color leaves, smaller apical inward curvature edge over-sprouting, yellowish stopped plant growth; however there also asymptomatic plants. P. most susceptible because showed 100% incidence. CaLso identified These results contribute understanding expression crops. more studies related epidemiology, diagnostic methods, mixed infections, vector-pathogen interaction control are required order generate allows complete knowledge pest.