Leaf Drop On Indoor Lemon Tree Nyc Diseased?

Question

Just cut diseased branches

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Answer 1

Has that radiator been on? It could cause leaf drop. Also, give it as much light as possible. I suggest removing the sheer curtain and keeping the blinds open or up during the day.

Here are more causes:

https://www.gardeningknowhow.com/edible/fruits/lemons/lemon-tree-leaf-drop.htm

https://www.gardeningknowhow.com/edible/fruits/citrus/leaves-falling-off-citrus-tree.htm