I need help with Chinese Elms that are showing signs of iron deficiency
I am trying to diagnose what the problem is with three newly planted Chinese elms in Phoenix. They have begun to exhibit the symptoms of iron deficiency. I used citrus fertilizer on them . But am wondering now if I should add chelates iron fertilizer too.
I am worried. I don't want to lose the trees.
The easiest treatment method is to apply an iron chelate to the soil. Use Iron EDDHA. This chelate is more expensive than some others, but is the only one that is reliably effective. Apply 2 to 3 lb of the material per 1000 square feet and water it into the soil. Spraying is also highly effective, but more difficult, particularly on a large tree.