[If you click on images it will pull them up full-size in new window]
Washington Navel (black spots almost looks rusted on leaves--leaves are small and somewhat pointed upward):
Meyer Lemon (no black spots but leaves are pointed upward--top left of picture shows new growth with pointed leaves):
Limequat (dead/shriveled leaves on one branch while all the rest look healthy--I cut the shriveled area off):
Any advice on the cause and what treatment options are?