Do you see these symptoms on your citrus tree?
Water is the single most important factor affecting the severity of this disease.
This disease should be controlled mainly on fruit intended for the fresh market. It is only a serious disease on certain varities of citrus. It mainly affects lemon, Murcotts, Minneola and Temple varities and is often a problem on grapefruit.
For more information about this disease, its causes and control see this link: http://edis.ifas.ufl.edu/CH014