AussieG After reading your post on gardening this thought hit me, then low and behold after watching "Gardening Australia" today they had this story! It's that dreaded fruit fly
I was going to post it then decided it was too long so will just put the link.
http://www.abc.net.au/gardening/stories/s2413283.htm
I suggest you all give it a read it sort of makes growing our own food more of a challenge than it is at the moment re water. I had no idea that they got into Tomato's and capsicum.
You live and learn every day eh!
Peace
Barb