Please tell me how to apply fertilizers on the leaf correctly? More precisely, when is it right to do this, when the light is turned on or when the light is out? I want to try a stimulant like "delta 9" cannabiogen. The description says that you need to apply a spray to the leaves. What's the right way to do it?
I used to foliar feed in the morning when the lights come on but after a few cases of PM I started foliar feeding when the lights are out and I foliar feed up to 2 weeks after the flip. I use kelp in my foliar feeding mix and only do it once a week but I dont want to stain my little white curlies when the pop out