Well, maybe I can test them out for you. I will have to do some more investigating on this subject. I will show this to my son when I go back for his wedding (I leave tomorrow night). He is into poisonous mushrooms at the moment. I may direct him to your thread also, if you don't mind. He is becoming an avid gardener himself. Did I mention how amazing my son is? lol He is a multi-talented man. An artist, musician (he plays, guitar, elec guitar, bass, mandolin, banjo, fiddle, cello, trumpet, sax, clarinet, harmonica and probably a couple of others by now). All self taught. Sorry, I am just very proud of him.