[Korean Farmers' News Reporter Jo Sung-je] The Gyeongbuk Agricultural Technology Institute has urged floriculture farmers to actively manage the environment and take preventive measures against the spread of powdery mildew in greenhouse floriculture as the daily temperature difference increases and sunlight decreases. According to the Gyeongbuk Agricultural Technology Institute, powdery mildew easily occurs in high-temperature, dry environments and is known to damage various crops such as gerberas, chrysanthemums, and roses. Initially, it appears as white powder on the surface of the leaves, but as it progresses, the entire leaf becomes covered in white powder, inhibiting photosynthesis and causing leaf drop and fruit damage, which hinders growth and directly affects marketability and yield.