One of my customers told me that his property is ridden with dandelions. I am don't have any certs for weed and feed. I read though that Cornmeal Gluten is a pretty decent organic pre-emergent and firtilizer and works well at gettin rid of those retched dandelions. I've also read here that some guys say that is just Hippy, Tree-huggin B.S. So what do you guys think. Also, for the Pa guys, is a cert required for organic stuff. i was lookin on the Pa Dept of Ag website and all I found were requirements for pesticides and herbicides but I didn't see anything about organic. Any info.....suggestions?