My backyard is all dirt, and we are planning on laying sod soon. Last spring/summer a TON of different weeds grew and I managed to get most of them, the same thing is happening this spring and so we want to get our sod down soon so the weeds don't get too difficult to manage. What I am wondering is if I should use some sort of weed control/preventative or whether I should just lay the sod down and assume that the sod with smother the weeds. Some of the weeds are really nasty and produce horrible little stickers which are becoming another huge problem. Should I try to get rid of those stickers before I lay sod or would it also smother those and prevent them from growing? Thanks in advance!