I haven't posted in a while due to trying to beat the clock in getting all my ducks in a row before the tsunami hits my front door... SO... thought I'd come back with two of what I think are really good, interesting questions. 1) What about synthetic chemicals is actually harmful to the lawn and microorganisms? 2) Is synthetic pre-M harmful as well or will it not effect the microbes in the soil? (can i use a synthetic pre-m in my organic program with out destroying all the work put into building the microbiology?) Glad you could hear from me again.