Dolgo be my 1st choice.
On above tree pics.... I’d run fungicides (captan, copper, Myclobutinyl, propiconazole, etc). I’d also run an insecticide like Bifen xts. Last- I’d add chelated iron & zinc.
The only last things after that would be: too much or too little water. Soil types. Lack of N-P-K (likely P) or way outta wack PH.
On above tree pics.... I’d run fungicides (captan, copper, Myclobutinyl, propiconazole, etc). I’d also run an insecticide like Bifen xts. Last- I’d add chelated iron & zinc.
The only last things after that would be: too much or too little water. Soil types. Lack of N-P-K (likely P) or way outta wack PH.