I have a half bag of Weed & Feed left over from last year. Should I use it this year or discard it and buy a new bag?
It should be fine to use this year.
Yep-it will be ok.
Look It up on the internet - you might be shocked as to how harmful it is to pets and wildlife. I am only going to use it in small areas at a time, covering them with chicken wire and netting to prevent birds landing on it.