Am I the only one who thought soil injection was just a sales gimmick?
A client in Akron had a maple going yellow at the top and I quoted him a deep root feed mostly to shut him up, figuring it was a waste. Six weeks later the canopy pushed out new growth I could see from the driveway, and now I'm eating crow and rethinking my whole stance. Anyone got a good rule for when it actually pays off and when you're just selling water?
Tbh the timing lines up with spring root flush, so some of that push may have happened anyway, which is why a lot of guys get fooled into thinking every feed works. Soil injection pays off when the tree is actually short on something in the root zone, so a soil test beats guessing every time. On a stressed maple in bad dirt it can be worth it, but on a healthy tree in decent soil you're mostly just selling water.