Q.lemon and orange trees?
In May this year I got two dwarf trees, an orange and a lemon. I will add two photos. My orange is near dead, and i think the lemon is going the same way.
regards
michael
Certified GKH Gardening Expert
Possibly water deficit/drought stress .
Water management is vital for plant health and survival.
Water a wide area not just near the tree trunk, water the entire area of the absorbing root zone which spreads as far as the foliar canopy and more.
Water deeply to wet the soil a minimum of six inches, preferably to 10 - 12 inches.
Fertilize spring and summer with a slow release complete organic fertilizer.
https://www.gardeningknowhow.com/edible/fruits/lemons/growing-lemon-trees-containers.htm
https://www.gardeningknowhow.com/edible/fruits/oranges/orange-tree-container-care.htm