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
Boy Peeling Fruit (Caravaggio) the "Young Sick Bacchus" and the "Boy with a Basket of Fruit". It is not known how these works came to be in Cesari's collection at the time. The fruit being peeled by the boy is something of a mystery. Sources indicate it may be a pear, which is probably correct but has been questioned; it may be a nectarine or plum, several of which lie on the table, but these are not usually peeled; some have suggested a bergamot, a pear-shaped citrus fruit grown in Italy, but others object that the bergamot is sour and practically inedible. Seen as