DISEASE
 
   NAME
     Shot Hole in Stonefruit
     Stimina carpophila

Description
A fungal problem

Symptoms
The leaves, fruit and twigs are attacked. The leaves develop small brown spots that have reddish margins. These increase in size up to 6mm across becoming dry then fall out creating the ‘shot hole ‘ appearance and when grouped together form irregular shapes. Twigs exhibit raised brown spots and young shoots form cankers that exude gum. Recurring attack of the twigs can result in dieback, weakening the vigour of the tree. The fruit reveals various symptoms with apricots and almonds forming raised brown scabs and peaches and nectarines having large brown depressed spots that split open and exude gum.

Source and Dispersal
The fungus is derived from infected plant material, particularly the twigs and the spores are dispersed by wind or splashing water.

Favoured Conditions
It is most active in spring during wet weather preferring humid conditions.	

Affected Plants
This fungus attacks Stonefruit.

Morinda citrifolia is affected by the fungus (Guignardia morindae) which attacks the leaves.

 Morinda citrifolia

Non-chemical Control
Remove any infected fruit or twigs or fallen leaves and destroy. 

Chemical Control
Plants and fallen leaves can be sprayed with a fungicide (copper oxychloride) during late autumn with a follow up spray in spring.
Note
Always read the label for registration details and direction of use prior to application of any chemicals.