plum pox

Plum Pox Virus is Still Nearby

Dan Fruits, Specialty Crops

plum pox
Plum pox infection in an apricot. There are rings on the leaves and the fruit and seed are discoloured.
The aphid Myzus persicae is a vector for plum pox virus in the United States.
By Scott Bauer –, Public Domain, Link

The U.S. Department of Agriculture (USDA) recently announced there’s no more Plum Pox disease in the country. The disease impacts stone fruit like plums, almonds, and peaches. No other countries where the disease has occured have been able to eradicate it. And while it doesn’t kill infected trees outright, it does cause severe yield losses and greatly reduces the marketability of stone fruit.

The virus spreads over short distances by aphids and over long distances via the movement of infected nursery stock or by grafting infected buds onto healthy trees. According to a story from Stephanie Ho, while the virus may no longer be in the U.S., it does still exist just across the border.