Noun
English Wikipedia has an article on:ringspotWikipedia
ringspot (countable and uncountable, plural ringspots)
(phytopathology) A symptom of various viral infections in plants.
The difference between the ringspot and the mosaic viruses is the ripe fruit in the ringspot has mottling of colors and mosaic does not. citation Fungi The fungus anthracnose is known to specifically attack papaya, especially the mature fruits. Source: Internet