Diseases
Prunus amygdalus x Prunus persica
Phytophthora root rot in Prunus amygdalus x Prunus persica hybrids manifests as root and crown rot caused by oomycetes of the genus Phytophthora. These rootstocks are highly susceptible to the pathogen, especially under waterlogged soil conditions.
In the reference 4 varieties crop Prunus amygdalus x Prunus persica, where this is mentioned in the description.
The disease in peach-almond hybrids is caused by various species of oomycetes, including Phytophthora cactorum, P. cambivora, P. niederhauserii, P. cinnamomi, and P. mediterranea. The pathogens infect the root system and root collar, causing necrosis and cankers, which leads to tree death.
Hybrids, often used as rootstocks, possess high vigor but are extremely sensitive to Phytophthora root rot under conditions of waterlogging and moderate temperatures in late winter and spring. Clinically, the disease manifests as sudden canopy wilting associated with the development of cankers at the root collar level.
For these hybrids, no specific pathogen races or identified resistance genes have been isolated. Resistance is considered a complex trait of a specific genotype, requiring strict management of irrigation regimes and soil drainage to prevent infection development.
General information about the subject — on the page Late blight.
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Prunus amygdalus x Prunus persica
The Regents of the University of California
Prunus amygdalus x Prunus persica
The Regents of the University of California
Prunus amygdalus x Prunus persica
C.S.I.C.-AULA DEI
Prunus amygdalus x Prunus persica
AGROMILLORA IBERIA S.L.U
Prunus amygdalus x Prunus persica
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR