How do I stop sap from burning picked mangoes?

Question From: 
Cheryl Wicks in  Lismore NSW,  Lismore NSW


Nature of problem: 
How do I stop our mangoes getting burnt from the sap when we pick them. They go black if the sap gets on them


Type of Plant (if known): 


Symptoms of Plant Illness (please try NOT to diagnose your problems yourself): 
skin turns black when i pick them


Soil Type (e.g. sandy, clay or loam) OR Potting Mix Type: 
Good – rich red


How often do you water the plant:


How many hours of sunlight does the plant get each day:


What type of plant is it:


How long since you planted it:
15 years


Have you fertilised? If so, with what and when:


Is the plant indoors or outdoors: 


What other treatments have you given the plant: 

Upload photo if available: 

Other Comments: 
Any help or ideas to stop the sap damaging our mangoes will be great.


Answer: Hi Cheryl,  Sounds like anthracnose, try spraying with eco fungicide – this is very safe it is more or less Baking Powder.  Don