What is a good spacing for weed applications? I currently do mine every 5 or 6 weeks. I skip june-august due to the fact that we generally have temps in the mid to uppper 90s all the time and some clients don't irrigate. How close is too close for apps? 2 weeks, 3 weeks? I am getting calls for weed estimates and want to keep everyone on my schedule. So when would you push a customer to the next round?