My prickly-pear (and a couple other cacti) are infested with a "cactus bug": the scientific name is chelinidea (sp?), and they suck the cactus pads. How do you get rid of them?! I tried a 50/50 rubbing alcohol solution, and it got a lot, but not all. They're quick little buggers, and it's hard to rub the solution on them. Can I spray with neem or dish soap? Any other advice? I see them all over Austin, and I've had them at each place I lived. They may not kill the cactus, but they make it look horrible, and it can't be good for them.

Thanks,

Jenny