Problem with eggplant leaves
I have eggplants that have curled leaves and other leaves are withered and they die. What is the problem?
They are probably infected with wilt. disease, which may be fungal (Fusarium or Verticillium wilts) or bacterial. All of these will affect any plant in the nightshade family, which includes tomatoes, peppers and eggplants. Here is more information: https://www.gardeningknowhow.com/plant-problems/disease/controlling-fusarium-wilt.htm
Generally, there is no cure once your plants become affected with wilt. In most cases the infected plants should be disposed of and the beds solarized to prevent future issues.