edwmax

It would depend on what caused the spots, insect bites or fungus.



Plastic bags over the fruit early on and while developing can keep off the insects. General spraying will help too.


Use a fungicide on the bunch to help control the fungus. Copper sulfate is regularly used and will control a number of fungus types.


Just make sure what ever is sprayed on the fruit will break down after a few days leaving no harmful residue on the fruit.

__________________