 Entomopathogenic fungi are a type of fungus that can infect insects and cause diseases. The fungi use their spores to enter the insect's body and then produce enzymes and other chemicals to kill the insect. This process is known as mycosis. The fungi also produce secondary metabolites which can increase its virulence and allow it to spread more easily. The insects have developed defenses against these fungi such as producing antibacterial lipids and proteins and behaviors like burrowing and grooming. The fungi must overcome these defenses in order to successfully infect the insect. This article was authored by Nemat O. Kehane and Almydina or Teaser