Another Curled leaf issue
I searched the forum for curled leaves but didn't find a post that seemed to be the same issue I'm having.
I have a 2 year old Skaggs Bonanza orange tree in a 25 gal container with "regular" citrus potting soil..not Al's gritty mix.
I fertilize with Foliage Pro monthly and water when the top 4" of soil dries. The tree is growing and set fruit, but lost many in our freezing spell in January.
The photo shows the leaf curl I'm dealing with. I don't see evidence of aphids, leaf miners or mites. I've looked at the leaves under a printer's loop.
I sprayed with Spinosad once about a month ago, but new leaves are still curling.
Any thoughts? I'm in the SF Bay Area.