Hi, Thanks for your very useful articles. I grow several lime trees, and have a serious problem with the leaves turning yellow. They still produce flowers and fruit, but look terrible. I have tried sequestered iron, and now Epsom salts, as well as the usual citrus fertilisers, but no improvement. Any advice appreciated, Regards, Bill Ure (Portugal).
Growing Bearss Seedless Limes
Certified GKH Gardening Expert
I would start with a soil test to determine if this is a nitrogen deficiency or other soil issue.
These articles may help you with more information.