Doublejj
Doublejj do you feed such large trees often to keep them dark green? Nevertheless your plants looks like a crew of commercial nurserymen grew them,amazing!
Not sure why you depriving your plants of nutrients,anyway you can drench with a 1/2 tsp of a 30-10-10 ormany high nitrogen fertilizer till they have recovered.
Well bro I've got good news my plants are burn down,I think my problem was applying the application where there were low moisture levels (drought stress)