DISEASE

NAME
Fungal Gall of Wattles
Uromycladium species


Description
These fungal diseases may be specific to a particular host forming galls that vary in size up to several centimetres across. Old galls may be inhabited by insects.



Symptoms
This fungus may attack phyllodes, leaves, pods, stems and branches depending on the species of the host and the fungus. Hard irregular brown knob like structures, appear on the outer stems of the crown and the developing fruits. They have a rusty colour with a granular texture.

Source and Dispersal
The fungus is spread by infested plants and the spores are distributed by wind.

Favoured Conditions
It prefers plants that are under stress ie. Growing on poor soil or in an exposed position and when the tree becomes senile.

Affected Plants
Acaciaspecies.

Non-chemical Control
Prune off any infected parts of the plant and destroy. Fertilize and water the plant ot improve vigour.

Chemical Control
There is no satisfactory chemical control of this disease.