Fruits and Nuts: Leaves on apple tree turning yellowwhy?, 1 by tucsonjill

tucsonjill wrote:
Ltilton, I don't remember it ever being particularly leafy, or seeing a bunch of fallen leaves around the yard; however, it's entirely possible I missed it. I did find a picture I took back in the spring when it first blossomed, that just shows activity towards the ends of the branches then as well. I don't know if that's significant?

Jayne, what's the scoop with EM1? What does it do, and how would it help?