Our apple trees have a condition called cedar apple rust. I've started spraying it with fungicide, but too late to save the crop this year, I'm afraid. The very wet spring we had probably contributed to it; we didn't have has much rain last year, which is probably why it didn't develop nearly as much (from what I can tell from the pictures I took before we bought the house).

I'll pass on your suggestion to my wife, she's the LOLCat expert in house. 8)