New Perspectives on the Epidemiology of Citrus Stubborn Disease in California Orchards

Fig. 3. Citrus fruit randomly harvested in 2007 and used on fruit quality evaluations: fruits from S. citri-free tree (left) and fruits from S. citri-infected trees (right). S. citri confirmation was done by cultivation and PCR.



Image from Plant Health Progress article:
New Perspectives on the Epidemiology of Citrus Stubborn Disease in California Orchards