I started my business last year ... fertilized a few lawns. My question is ... how many mow grass & fertilize? Do most just cut grass? I assume permits are needed to apply fertilizer and insect control? Is it better left to ... tru-green or one of those type companies? Do most customers ... if your doing there lawns ask you to fertilize? Do you loose customers if you don't offer it? Are there are some health risks to take into consideration?