This research investigated what attracts fungus gnats to mushroom growing facilities and what causes them to lay eggs. The study found that different fungi present in mushroom compost attract female flies and influence where they lay their eggs. This knowledge could help develop better ways to control these destructive pests in mushroom farms. Impacts on everyday life: • Could lead to better pest control methods for mushroom farmers • May help reduce crop losses and keep mushroom prices stable • Provides insight into managing agricultural pests more sustainably • Could reduce the need for chemical pesticides in mushroom production • Demonstrates the complex relationships between insects and fungi in agriculture