Persimmon tree question

[Oklahunter]

Can you tree experts tell me first what is causing the black spots and disease on my trees and second why three of my trees have yellowish golden leaves and my fourth one has dark green leaves?

 

[BrushyPines]

By the look of the field in the background, I'm going to say lack of water. Could be a N deficiency also. The one still green looks well on it's way to turning yellow too.

 

[Oklahunter]

I live in a dry area for sure but the last couple months we’ve had rain at least once a week so I thought that would be enough. I have not fertilized though so will do that. Any ideas on how much fertilizer? Thanks for the info!

 

[Hoytvectrix]

The second image looks like the tree has interveinal chlorosis. Most often this is because of a nutrient deficiency. It does not look like it is only on older or new leaves, making the diagnosis a little tricky.

As far as the the first and second images, I think it is a nutrient deficiency or toxicity. Take a look at the margins that have the necrosis.

Diagnosing Nutrient Deficiencies (Manjula Nathan)

ipm.missouri.edu

 

[b116757]

The one photo does look like iron chlorosis pick up a bag of Ironite and water in around the base of your trees. Also are the trees planted in an area that holds water it could be it’s to wet an area. Seems to me persimmons like well drained soil.

Iron Chlorosis Caused by Iron Deficiency | Davey Tree

Iron chlorosis is a result of a lack of chlorophyll, the leaves' green pigment. Affected trees and shrubs’ leaf veins will be yellow while the rest of the leaf will remain green. To help mildly symptomatic trees, add iron or compost to the soil. For trees with severe iron deficiency, trunk...

www.davey.com