If thats a normal sized corn stalk, youre gona need a 12ft ladder to pick your peaches when you get it figured out. My advise is this: growing peaches on one tree in your yard is way more trouble than it is worth. Get peaches from somebody who grows them commercially. But if youre just stubborn and you want to do it yourself, get that sprayguide bamaplowboy referred you to and go by it religiously