Abstract
The citrus fruits are the most produced in the World. Brazil are among the three largest world producers with EUA and China, which has about 46% of world production. The Citrus variegated chlorosis (CVC) caused by bacterium Xylella fastidiosa is currently a disease of major importance in Brazilian citriculture. It was found in 1987 in São Paulo state and later in Minas Gerais and Paraná, …