A new study shows that oregano essential oil can effectively prevent and treat wet bubble disease in button mushrooms, a fungal infection that costs farmers millions in crop losses. The oil works better than conventional chemical fungicides and contains powerful antifungal compounds like carvacrol and thymol. When applied at the right time, oregano oil completely stopped the disease from developing while maintaining healthy mushroom yields. This natural solution could help organic mushroom farmers reduce their reliance on synthetic chemicals.