I should know the answer to this question, think I know but not 100% sure. I have customers that want dethatch, aerate and over seed. This is the time of year for weed and feed. How and when do I control weeds after spreading new seed. I know I can use starter fertilizer. I need an answer before doing the quotes and have the knowledge for these new clients. Could those who are 100% sure help me out? Thanks!