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, Texas Plum, Texas Plum is an unincorporated community in Fayette County, Texas, United States. Although it is unincorporated, Plum has a post office, with the ZIP code of 78952. Plum is on State Highway 71 and the Missouri, Kansas and Texas Railroad, eight miles west of La Grange in Fayette County. F. Lotto's book "Fayette County, Her History and Her People", claims that the property surrounding Plum is prairie and postoak. The area was initially settled by families from Tennessee on lands granted to Andrew Castleman in 1828 and John Cooke in 1831 and acquired the name Plum Grove. Plum Grove