http://organicgardening.about.com/od/pestcontrol/p/Aphids.htm
Or find eggs and squish them gently so not to damage leaves.
I put this just in case, but since you say the leaves are being eaten, it doesn't really sound like aphids, does it? You might have a case of thirsty
ants. I've heard a few complaints lately of plants doing the un-thinkable in order to get to the
water in the plant. Maybe you could try watering your ants? Someone posted on another forum that it worked for them. Good luck to you and I wish I had more to offer.