Little tiny lemon fruitlets dropping off the tree

Question

Why are these tiny little lemon fruitlets dropping off my tree?
Can I replant them again?

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Answer 1

Lemons will, commonly, drop smaller fruit if there are too many on the tree. This is so that they can focus growth on the remaining fruits. This is no reason for concern. I'm sorry but you cannot plant those, as they don't contain mature seeds.