has anyone tried this? i have some 2-7-7 fert i was thinking about using at one third strength to spray on my leaves.anyone got any input.by the way this fert says nothing about spraying im just thinking.
I only foliar feed if my plants look like they need some nutes and need them quickly - and yeah, never at full strength.
You should also add a wetting (or "sticking") agent to your spray too to ensure it "sticks" to the leaves. For this purpose, I just use some neem and it does the trick well enough.