From my understanding of non pestcontrol lawns they will always cost more to maintain than those lawns that use chemicals to rid them of weeds or insects. This is a fact of life. I would suggest visiting your local Extension Agent an ask for reference material to controlling weeds and insects, without pesticides. You will find there are many product you can use who origin can be traced to other plants that are used to control weeds and insects. Like: Talstar: which is an insecticide derived from a flower. Corn Gluten: Which is used as a pre emergent to control ungerminating weeds, etc.
Good luck on your search
