DISEASE: Aster yellows
HOST: Marigold
Infected plant (left) with yellowing and stunting.
![](/sites/default/files/plant_disease/images/0529.jpg)
Aster yellows | Marigold
DISEASE: Aster yellows
HOST: Marigold (Tagetes erecta)
PATHOGEN: 'Candidatus Phytoplasma asteris'
PATHOGEN SYNONYM: Phytoplasma Aster yellows group
SOURCE: M. Shurtleff
DISEASE: Bacterial wilt
HOST: Pothos
Pothos with infected stem and petioles.
![](/sites/default/files/plant_disease/images/0791.jpg)
Bacterial wilt | Pothos
DISEASE: Bacterial wilt
HOST: Pothos (Epipremnum aureum)
PATHOGEN: Ralstonia solanacearum
PATHOGEN SYNONYM: Pseudomonas solanacearum
SOURCE: D. Norman
DISEASE: Bacterial wilt
HOST: Pothos
Plant with severely infected leaves and stems.
![](/sites/default/files/plant_disease/images/0792.jpg)
Bacterial wilt | Pothos
DISEASE: Bacterial wilt
HOST: Pothos (Epipremnum aureum)
PATHOGEN: Ralstonia solanacearum
PATHOGEN SYNONYM: Pseudomonas solanacearum
SOURCE: D. Norman
DISEASE: Pseudomonas leaf spot
HOST: Marigold
Marigolds with yellow apical chlorosis attributed to toxin production by the pathogen.
![](/sites/default/files/plant_disease/images/0528.jpg)
Pseudomonas leaf spot | Marigold
DISEASE: Pseudomonas leaf spot
HOST: Marigold (Tagetes erecta)
PATHOGEN: Pseudomonas syringae pv. tagetis
SOURCE: R. Durbin