Spondias dulcis fruits covered with tiny dots of sap

[Daintree]

My Spondias dulcis fruits are now about the size of large olives. they are covered with tiny dots of sap.
I have inspected them several times a week with a magnifying glass, and there are no pests.
The plants appear very healthy, no signs of insects.  They are in the greenhouse, so nothing has bitten them then fled.  I scout regularly.

What is causing this?  Is it just transpiration? 

Thanks!
Carolyn

[pineislander]

I can't really comment on your greenhouse experience but most Ambarella I see here in Florida and those I've seen in the Caribbean are not pretty, they are prone to skin defects as seen in this video:
https://www.youtube.com/watch?v=uqAvNUgzyPU

They still ripen OK and many just suck the juicy flesh not really eating the skin. Many just use the green fruit in pickles, etc.

[sahai1]

your fruits should get much larger, and the skin is not good, similar to mango skin.

smaller olive sized fruits with better looking skin and edible flushes is spondias pinnata
https://en.wikipedia.org/wiki/Spondias_pinnata#/media/File:SpondiasPinnata_9907.JPG