I have grown lazy and am looking to hire someone to spray my trees with foliar spray once a month. You don't need to know anything, just be strong enough to put on a backpack prayer (4 gal) (Sorry Sheehan, that counts you out). I will give you a detailed print out of what to put into the tank and will show you the first time. PM me if you are interested with your hourly price. I live in Parkland so you obviously have to be willing to come here.