The detection of prune dwarf virus in peach trees affected with peach rosette and decline with Golden Queen peach as an indicator, and the distribution of the virus in affected trees

Abstract

Golden Queen peach was a better indicator than Italian prune and Elberta peach seedling for detecting prune dwarf virus (PDV) in peach trees naturally infected with peach rosette and decline disease. Both cv. Golden Queen and Elberta seedling had lower probabilities of failing to detect PDV, but the symptoms produced were mild and transient in Elberta seedling compared with the severe and persistent symptoms produced in cv. Golden Queen. The virus was transported in the phloem, but not xylem, of affected peach trees and moved into limbs adjacent to the initially affected limb within 2 months of flowering.