DISEASE: Bacterial leaf spot
HOST: Orchid
Infected leaf of Phalaenopsis orchid with light brown necrotic area.
![](/sites/default/files/plant_disease/images/0618.jpg)
Bacterial leaf spot | Orchid
DISEASE: Bacterial leaf spot
HOST: Orchid (Phalaenopsis sp.)
PATHOGEN: Pectobacterium cypripedii
PATHOGEN SYNONYM: Erwinia cypripedii
SOURCE: R. McMillan
DISEASE: Sour skin
HOST: Onion
Symptoms of sour skin are characterized by slimy, pale yellow to light brown decay.
![](/sites/default/files/plant_disease/images/0583.jpg)
Sour skin | Onion
DISEASE: Sour skin
HOST: Onion (Allium cepa)
PATHOGEN: Burkholderia cepacia
PATHOGEN SYNONYM: Pseudomonas cepacia
SOURCE: Dep. of Agric. & Agri-Food, Government of Canada