Ans: When it comes to defining wilt, there is just one thing to say and that is wilt can be considered as a very common disease that plants tend to suffer from. This is a disease that can be caused when there is a loss of water in the stems as well as the root of the plant. Many different types of wilt diseases are caused by some other external agents such as bacteria, viruses, fungus and so many other examples for sure. When a plant suffers from wilting problems, the leaves of the plant would simply lose colour and then wither and die.