My Calamondin tree lost a lot of lower leaves and several branches dried out in the last year. It does however keeps flowering almost every month and there are even a few fruits growing up, so I'm assuming all is not lost. It seems to lack something because very few fruits grows large enough to mature, most fell off the tree when they are the size of a sweet pea. I'm thinking it probably needs a lot more foliage to help with photosynthesis, but even with all the new flowers, it barely grows any new leaves, and then only at the extremities of the existing branches. Is there a way to help it to grow more foliage, and new branches off the main stalk at the lower level? I was thinking of pruning the top leaves, but most articles recommend to prune at most 25% of the canopy, which is almost nothing in my case. Can I just cut back all the branches to half their size to force new growth? Or will that cause it to suddenly die? I don't really care on losing the existing fruits/flowers, I would prefer that it grows back strongly and flowers later.