Answer: You didn't say whether fruiting declined the year after you pruned or if you pruned and got a bumper crop. It is not at all unusual for citrus trees to produce lots and lots of flowers but only a little fruit. Most of the blossoms are not pollinated and even if they are, citrus trees tend to produce more flowers than they could possibly support in fruit. So, if you just pruned your tree, it should have enough new growth to flower later this year. If you pruned and got a bumper crop but nothing this year, your tree is probably trying to recover from the previous bumper crop. I can only recommend that you continue to keep your trees well watered and fed and wait until they're ready to fruit again.
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