DISEASE: Vinca virescence
HOST: Periwinkle
Diseased plants with virescence symptoms.
![](/sites/default/files/plant_disease/images/0712.jpg)
Vinca virescence | Periwinkle
DISEASE: Vinca virescence
HOST: Periwinkle (Vinca sp.)
PATHOGEN: 'Candidatus Phytoplasma asteris'
PATHOGEN SYNONYM: Phytoplasma Aster yellows group
SOURCE: B. Raju, M. Davis
DISEASE: X-disease (Peach yellow leaf roll)
HOST: Peach
Peach twig with yellow, curled (rolled) leaves.
![](/sites/default/files/plant_disease/images/0663.jpg)
X-disease (Peach yellow leaf roll) | Peach
DISEASE: X-disease (Peach yellow leaf roll)
HOST: Peach (Prunus persica)
PATHOGEN: 'Candidatus Phytoplasma mali'
PATHOGEN SYNONYM: Phytoplasma Apple proliferation group
SOURCE: W. Sinclair