I have a real problem with our back yard. There are these bright red things sprouting up all over the yard. I sprayed something on them at the end of summer last year to kill them and apparently it didn't work. It was some kind of stump killer. Anyway I think it is due to our getting our crabapple tree cut down, they didn't get all the roots out. AT the time it looked like they did but now i see roots popping up and these other areas of woody stiff things all in a bunch popping up. What is happening, are these trees?? WHat will kill them, they are all over and seemingly multiplying over night. They are quite a ways from the tree also. HELP!!!!!!!!!!