Healthy anthurium spathe and spadix. However, plants with latent infections appear healthy.
DISEASE:
HOST: Anthurium
| Anthurium
HOST: Anthurium (Anthurium andraeanum 'Pink Frost')
PATHOGEN:
SOURCE: A. Alvarez
DISEASE: Bois noir disease
HOST: Grape
Infected plant with typical symptoms of rolling, triangular-trapezoid-shaped leaves with desiccated appearance.
Bois noir disease | Grape
DISEASE: Bois noir disease
HOST: Grape (Vitis vinifera 'Pinot Noir')
PATHOGEN: 'Candidatus Phytoplasma solani'
PATHOGEN SYNONYM: Phytoplasma Stolbur group
SOURCE: W. Schweigkofler
DISEASE: Crown gall
HOST: Grape
Gall on base of 'Zinfandel' grape in California, where aerial galls are less common because of dry, hot weather.
Crown gall | Grape
DISEASE: Crown gall
HOST: Grape (Vitis vinifera 'Zinfandel')
PATHOGEN: Agrobacterium vitis
PATHOGEN SYNONYM: Rhizobium vitus
SOURCE: M. Schroth