I have a Washington Naval orange dwarf tree that I planted in ground a month ago. But now its leave are getting yellow. What could be the reason? It gets enough sun and the tree next to it is fine.
|Since you've only recently planted your orange tree, I think it is probably just showing some stress from being transplanted. The best action is no action, other than watering it deeply once a week. As soon as the roots become established, your tree will perk up and begin to show new growth. Until then, just water it regularly and be patient. Once it is established you'll see lots of new growth.
Best wishes with your garden!