DISEASE: Bacterial needle blight
HOST: China fir
Leaves with brown blotches. Some are dead.
Bacterial needle blight | China fir
DISEASE: Bacterial needle blight
HOST: China fir (Cunninghamia lanceolata)
PATHOGEN: Pseudomonas syringae pv. cunninghamiae
SOURCE: M. Goto
DISEASE: European stone fruit yellows
HOST: Almond
The disease causes yellowing and rolling of leaves (right). Leaves become thick and rough in texture. Healthy leaves (left).
European stone fruit yellows | Almond
DISEASE: European stone fruit yellows
HOST: Almond (Prunus dulcis)
PATHOGEN: 'Candidatus Phytoplasma prunorum'
PATHOGEN SYNONYM: Phytoplasma Apple proliferation group
SOURCE: E. Seemueller
DISEASE: Sweet potato scab
HOST: Sweet potato
Tubers with large, dark scabs.
Sweet potato scab | Sweet potato
DISEASE: Sweet potato scab
HOST: Sweet potato (Ipomoea batatas)
PATHOGEN: Streptomyces ipomoeae
SOURCE: APS
DISEASE: Sweet potato scab
HOST: Sweet potato
Black and necrotic decay of fibrous roots.
Sweet potato scab | Sweet potato
DISEASE: Sweet potato scab
HOST: Sweet potato (Ipomoea batatas)
PATHOGEN: Streptomyces ipomoeae
SOURCE: W. Martin