My yard has been invaded by these nasty creatures. They've destroyed my ferns, are eating away at my begonias, killed off my burning bush & most depressing my roses. I could go on but it depresses me. How do I get rid of these things? I was trying to do as the university suggested, pick them off my plants & drop them in soapy water. There are hundreds of these things all over one bush. Any suggestions...or do you have time to come & help me eradicate these little buggers?