Calamondin orange blossoms won't open
I have a calamondin orange tree that I saved from a neighbor's garbage can. I treated it successfully for mealy bug infestation and now it's producing lots of blossoms. The trouble is, none of them are opening. Some have dried up and fallen off. Also, most of the leaves have fallen off the bottom of the plant. The plant is in the original plastic pot. Thanks for any help.