OK I know most of you are tired of people asking how to charge for this or that, but after extensive searching, I've found nothing. I'm interested in knowing how you charge to keep the insects under control in the landscape. Do you charge per bush? per unit of herbicide used? per 1000 ftsq of landscape? Is there some kind of warranty that you give if a plant dies? The reason i ask this is, the Terminix guys have a warranty for your house if it succums to termite damage under their contract period. Thank you in advance.