Fruits and Nuts: What's eating my grapesdisease/weather/birds?, 0 by cestrum_SEQ

cestrum_SEQ wrote:
Hi, I don't usually venture here but thought someone might be able to identify this problem. My grapes have fruited for the first time this year. (My parents gave me cuttings and I don't know what variety they are, just that they're purple, small and, believe it or not, beautifully scented when ripe.) Anyway, as the grapes start to colour, they develop these great big holes in the top--you can see straight thru to the seeds inside. Is this fruitfly? Some sort of rot caused by the humidity (I'm in the subtropics)? Or could it be from birds pecking at the ripening grapes? (I've never actually seen any on the vines but they certainly like the blackberries and strawberries.) What do you think?