I have 7 food plots I have to plant for the CRP contract. I have been using milo and the past 2 years it has been taken over with fox tail. This year I had it plowed and then I killed everything that grew after plowing. Yet the fox tail came back so bad it is hard to find the milo. I will usw treated seed next year and use a pre-emergence. I want to use my ATV with a 7 foot boom I made with nozzles 20 inches apart and 20 inches above the ground. My question is does anyone have an idea how I could mark the spray path so I don't overlap too much which will kill the milo and everything? The boom is made out of 1 inch square tubing and is bolted onto the trailer hitch of the ATV.