Measles

Scientific name

None - a disorder

Other common names

Citrus measles

Disease cycle

Measles can be graft transmitted.

Symptoms

Leaf - numerous pale yellow spots on leaves that can be seen on the upper leaf surface and appear tan to brown on the lower surface.

Whole tree - often a single branch or limb exhibits symptoms.

It should be noted that: Measles occurs on rare occasions. It tends to only occur on a few trees in a grove.

Host range

Measles has been observed on multiple sweet orange varieties.

Distribution

Measles has occurred in Florida and Brazil. Larger scale outbreaks have been reported in Brazil.

Easily confused with

Citrus varigated chlorosischlorosis:
an abnormal yellowing or whitening in green plant tissue due to insufficient chlorophyll production
(CVC), leprosis, and psorosis