Orange tree troubles
I bought a small orange tree about 4 months ago and transplanted it into a wine barrel. It was very healthy initially, but has since developed spots brownish red spots on the leaves and has some yellowing of the leaves.
I've fertilized it with generic citrus fertilizer twice this year and applied compost to the base recently. It drains very well.
From what I've read the spots can be bacterial/fungal or citrus canker. The spots aren't really raised, so I'm hoping that it's not canker.
I'm hoping someone will have some tips for how to get the tree back to a happy state. Thanks in advance!