Xylella fastidiosa, a bacterium in the class Gammaproteobacteria, is an important plant pathogen that causes phoney peach disease in the southern United States, Bacterial Leaf Scorch, oleander leaf scorch, and Pierce's disease, and citrus variegated chlorosis disease (CVC) in Brazil.
Read more about Xylella Fastidiosa: Pierce's Disease, Oleander Leaf Scorch, Genome Sequencing