Ink Spot
Ink spot
Common name
Ink disease
Kangaroo paw
Causal agent
Ink spot is a fungal disease caused by a fungus of the genus Alternaria. It mainly affects kangaroo paw species resulting in black spots on leaves and stems.
Scientific name
Alternaria alternata
Symptoms & Signs
The disease starts off as black spots on leaves and stems, especially near the tips. As the disease progresses, the black spots start showing on the rhizomes. It weakens the plant severely and may cause its death.
Transmission
The fungal spores may transfer from the infected plant to other healthy plants by means of wind, water, and contact.
Time of concern
Early spring to late summer
Common hosts
Anigozanthos manglesii
- viridis