Okay, so maybe I don't know everything yet...
Here I was thinking that I've been through so much with my lemon tree that I could take anything that came my way, bring it on!
Except, I can't, and I'm not sure what up with my orange tree. Suspecting a mineral deficiency. I have an idea of what's up, but I want some feedback from the experienced members here. It's potted, outside on the south facing side of the house. At first I suspected overwatering (It is RAINY here!) so I've been making sure to keep it under the awning and letting it get to mostly "dry" on the meter. But, it's not helping.
The plus side: My Moro is FINALLY putting out new growth! I got it from Four Winds way back in the beginning of May. It's been very healthy, but no new growth till now - it's got a bunch of branches sprouting from the trunk right where I wanted them to.
The down side: Not sure about the Chlorosis thing I've got going on. Leaves have been yellowing and falling off. All the older leaves first, especially the main ones growing directly from the trunk. There's a few leaves where the veins go yellow, followed by the leaf, and the whole thing falls - but I think those few are just old leaves due for falling. What I'm seeing mostly is what you see in the pictures.
What I've done: I'm assuming either mineral deficiency or salt toxicity. I've had some problems with Whitefly so JUST in case I drenched the whole thing in Hort oil and let it sit for a few, then blasted the whole thing with a hose. then I ran through about a gallon of rainwater I'd collected in my watering can to flush any salt buildup, and finally watered it with rainwater mixed with 1.5 strength Foliage Pro to treat for any kind of deficiency.
Does that sound good? Should I do anything else? The soil is pretty free draining, but I'd mixed in cedar chips - the kind you get for hamsters - because pine was nowhere to be found the time. I believe someone told me down the line that would cause a nitrogen problem. could this be it? I could repot (I've got plenty of small pine bark now to mix up a good soil) but I'd like to wait till its little growth flush is over. I just potted it when I got it in May. It's a good kind of soil from my garden center (NOT Miracle Gro), perlite and cedar chips, along with the chips that the tree came packed in from Four Winds.
Pics below, I'd like to hear what you think!