Plum pox Plum pox Plum pox, also known as sharka, is the most devastating viral disease of stone fruit from the genus "Prunus". The disease is caused by the plum pox virus (PPV), and the different strains may infect a variety of stone fruit species including peaches, apricots, plums, nectarine, almonds, and sweet and tart cherries. Wild and ornamental species of "Prunus" may also become infected by some strains of the virus. The virus is transmitted by aphids and by the transfer of infected plant material to new locations. Plum pox poses no danger to consumers, but it can ruin the marketability
Victoria plum strain quickly became very popular in Sweden in the late 19th century. The Victoria plum contains the anthocyanin chrysanthemin. Victoria plum The Victoria plum is a type of English plum. It has a yellow flesh with a red or mottled skin. This plum is a cultivar of the egg plum group ("Prunus domestica" ssp. "intermedia"). The fruit shape is oval or ovate. The ground color is greenish yellow, mostly covered with a purple color. The stone does not come off completely from the flesh but the skin is easy to pull off. The flesh is quite rough, light yellow and