We've had a lot of rain lately by San Diego standards, and there's a bit more to come next week. The 2 smallest mandarins are not looking happy, continuing to have the yellowed leaves with dark spots. My Mom had a good look at one and suggested iron chelate. So, I gave them each some iron chelate and a little bit of Gro-Power Plus, which has humic acid, so might continue to gently acidify the soil.
