This paper reviews how scientists are improving the production of natural fungal pesticides that kill insect pests. Instead of growing fungi on grains in bags, researchers are using large fermentation tanks similar to those used in food and beverage production. These tanks can produce beneficial fungal cells more quickly and efficiently, with better quality control and safety. The paper discusses different types of fungal cells produced, how to make them stable for storage and field use, and how this technology could replace older production methods worldwide.