What did you use for the Aphids? Leaves turn yellow, exhibit chlorosis, for many reasons and sometimes people spray inappropriate things on plants to eliminate Aphids that cause the plants leaves to die, which yours are doing. If something was sprayed on those leaves that restricted that leafs ability to breath or photosynthesize the plant will cut off nutrient flow to that leaf and it will die.

Jennifer —-(Spraying with Neem Oil and or and other mixtures to eradicate the insects organically could still harm those beneficial insects. Some people will just let those pest stay on the tree because they dont want to harm them. Its a difficlt choice to make for some and you need to understand that some bad infestations that might get out of hand and could cause your trees to become weak and allow other diseses to slowly kill your tree. i always try and let Mother Nature work on the right balance of the pest verses the beneficial insets to keep everything in check. But sometimes i will have to step in and use more than organic to combact the problem. its up to you to decide what is best for your tree. Laura Even those that eat leaves ___ Katydids 🌺

Probably from the stress of roots being disturbed and shipping. It should recover and grow a new leaf.

If the problem with the fig and peach trees are related, it could be a soil chemistry issue.