Plum pox show no symptoms on leaves or fruit. Not all infection in "Prunus" are characterized by a ring symptom on leaves. Several cultivars show yellowing line patterns and blotches, or necrotic ring symptoms on expanded leaves. Leaf distortion has also been observed. Infected fruit can develop yellow rings or blotches, or brown rings, and some plum and apricot fruit can be severely deformed and bumpy. The seed of many infected apricots and some plums show rings. Many non-"Prunus" species, in at least nine plant families, have been infected artificially with one or more strains of the plum pox virus, and in
Plum (color) article and paler than the color of an actual plum. Displayed at right is the color Persian plum from the Xona.com Color List. This is the color traditionally called prune because it is a representation of the average color of prunes. "Prune" is the French word for "plum", but in English the name "prune" is applied to "dried plums". This color is a representation of the color of cooked dried plums (prunes). The first recorded use of "prune" as a color name in English was in 1789. Plum (color) Plum is a purple color with a brownish-gray tinge, like that