HELP please! My poor dwarf lemon tree (5-6 years old) has lost every single leaf (see photo) and is dying or possibly already dead & can't be revived? We've had recent daily temperatures of 110-115F here in the low desert but the total loss of every leaf has never happened in past years. It receives daily watering & I've done a soil test & all levels are within range. It was beautiful in the spring & loaded with flowers but gradually the leaves began to curl, turn yellow & drop. It is planted on the south side between a block wall & house. Can you PLEASE tell me what's happened & what I can do to save it?
